PROFESSOR ECHEME, ONYEKACHI JOHNBULL

PROFESSOR ECHEME, ONYEKACHI JOHNBULL

DIRECTOR, DIRECTORATE OF ACADEMIC PLANNING

Biography

Name: ECHEME ONYEKACHI JOHNBULL
Place of Birth: WUSASA ZARIA
State: ABIA
Nationality: NIGERIAN
Contact Address: Prof. ECHEME O. JOHNBULL, PhD
Professor of Organic/Medicinal Chemistry & Director, Academic Planning DAP
Michael Okpara University of Agriculture, P.M.B 7267 Umudike, Abia State, Nigeria
Present Post: Professor of Chemistry and Director, Academic Planning (DAP)
Previous Post: Associate Professor
Marital Status: Married
EDUCATIONAL BACKGROUND

Primary School: Ibadan City Council (ICC)

Mokola Ibadan

Nnono Central School, Nnono Oboro

Secondary School: Oboro Secondary School, Oboro, Ikwuano, Abia State

Government College Umuahia

University Bangalore University, Bangalore, India

S. Venkat University, Tirupati, India

Academic Qualifications with Date: WASC (1979), B.Sc. (1983), M.Sc

(1985), PhD (1989)

______________________________________________________

Degree Institution Course Class Year

______________________________________________________

PhD Sri Venkat Synth Org Nov. 1989

University, Tirupati Chemistry

India

M.Sc. Sri Venkat Organic Dec. 1985

University, Tirupati Chemistry

India

B.Sc. Bangalore University Chemistry July1983 Bangalore, India

WASC/ Oboro Secondary school

GCE Oboro Ikwuano, Abia State Nov 1979

EMPLOYMENT, TEACHING and ADMINISTRATIVE EXPERIENCES

University Research Experience: 29 Years

a. Two years [1986-1988] as Junior Research Fellow, Department of Chemistry, Sri Venkat. University Tirupati 517 502, India.

b. Two years [1988-1990] as Senior Research Fellow, Department of Chemistry, Sri Venkat. University Tirupati 517 502, India.

c. One Year [1997-1998] as Fogarty Fellow at Wayne State University, Detroit, Michigan, USA

d. One year Postdoctoral [1990-1991] as Lecturer [NYSC] Department of Chemistry, Bayero University P.M.B. 3011 Kano.

e. Lecturer II [1990-1993] Department of Chemistry, Bayero University P.M.B. 3011 Kano.

f. Lecturer I [1993-1997] Department of Chemistry, Bayero University P.M.B. 3011 Kano.

g. Senior Lecturer [1997-2003] Department of Chemistry, Bayero University P.M.B. 3011 Kano.

h. Associate Professor [2003-2005] Department of Chemistry, Michael Okpara University of Agriculture, Umudike, Abia State

i. Professor [2005-date] Department of Chemistry, Michael Okpara University of Agriculture, Umudike, Abia State

Positions Held

1. Junior Research Fellow University Grants Commission,

Government of India, New Delhi [1986 – 1988].

2. Senior Research Fellow University Grants Commission,

Government of India, New Delhi [1988 – 1990].

3. Project Coordinator Department of Chemistry, Bayero University

Kano Nigeria [1991 – 1996].

4 Acting Head of Department of Chemistry, Bayero University

Kano Nigeria [1995 – 1996].

5 Faculty Library Officer, Faculty of Science, Bayero University

Kano Nigeria [1993 – 1998]

6. Acting Head of Department of Chemistry, Michael Okpara

University of Agriculture, Umudike, Abia State, Nigeria [2004 – 2005]

7 Director, Equipment maintenance and Instrumentation Centre Michael Okpara University of Agriculture, Umudike, Abia State, Nigeria [2004 – 2009]

8. Chairman, Students Disciplinary Committee Michael Okpara

University of Agriculture, Umudike, Abia State, Nigeria [2008-2009]

9. Chairman, Award of Honorary Degrees Honoris Cosa Michael Okpara

University of Agriculture, Umudike, Abia State, Nigeria [2009 Convocation]

10. Professor and Dean, College of Natural and Applied Sciences

(CNAS) Michael Okpara University of Agriculture, Umudike Nigeria [2005-2009]

11. Acting Vice Chancellor, Michael Okpara University of Agriculture, Umudike Nigeria [September 01 to September 03 2009]

12. Chairman, Senate Committee on University Wide Courses, Covenant University, Canaan Land, Ota, Ogun State, Nigeria [2009-2011]

13. Chairman, Senate Committee on Make-up Examination, Covenant University, Canaan Land, Ota, Ogun State, Nigeria [2009-2011]

14. Acting Dean, College of Science and Technology, CU (2011)

15. Professor and Head, Department of Chemistry, Covenant University, Canaan Land, Ota, Ogun State, Nigeria [2010-2011]

16. Chairman, University Committee on Research Innovations and Commercialization, Covenant University, Canaan Land, Ota, Ogun State, Nigeria [2009-2011]

17. Director, Covenant University Centre for Research and Development (CUCERD), [2011-2012]

18. Chairman, Senate Adhoc Committee on Software acquisition for Result computation and data flexibility, Michael Okpara University of Agriculture, Umudike, (2012-2014)

19. Chairman, University Staff Disciplinary Committee, Michael Okpara University of Agriculture, Umudike, (2016-Date)

20. Director, Academic Planning (DAP), Michael Okpara University of Agriculture, Umudike, (January 2017-Date)

21. Chairman, Senate Committee on review student handbook. (2018)

22. Chairman, Committee to scrutinize the publications of Dr. winadum

Gbenenee (2018)

23. Member, University Research ethics/Pricing Committee (2018)

Previous Research Fellowship

1. Junior Research Fellow Indian Rupees: 2700.00 per month 1986 – 1988

2. Senior Research Fellow Indian Rupees: 2900.00 per month

1988 – 1990

3. TWAS/CSIR Fellow Indian Rupees: 8800.00 per month 2000-2001

4. UNESCO/TWAS Fellow US$ 600.00 per month 2003-2010

f. Three months [June 2001-August 2001] as WHO/TWAS/CSIR Visiting Research Fellow University of California, San Francisco (UCSF), USA

g. One Year [2000-2001] as TWAS/CSIR Visiting Research Fellow The Central Drug Research Institute (CDRI), Lucknow, India.

h. Nine Months [2002] as Fulbright Fellow to the University of California San Francisco (UCSF), California.

i. Three months [October 2003-January 2004] as UNESCO/TWAS Fellow

Indian Institute of Technology Madras (IITM), Chennai.

j. Three months [January 2005-April 2005] as UNESCO/TWAS Fellow

Indian Institute of Technology Madras (IITM), Chennai.

k. Three months [February 2007- May 2007] as UNESCO/TWAS Fellow

Indian Institute of Technology Madras (IITM), Chennai.

l. Visiting Professor [June 2011] Donetsk Technical University, Donetsk, Ukraine.

University Teaching Experience: 27 Years

a. Previous Academic Positions

Lecturer II: Department of Chemistry, Bayero University, Kano

Nigeria [1991-1993]

Lecturer I: Department of Chemistry, Bayero University, Kano

Nigeria [1993-1997]

Senior Lecturer and Research Scientist, Department of Chemistry, Bayero University, P.M.B. 3011 Kano Nigeria [1997 – 2003]

Associate Professor and Head, Department of Chemistry, Michael Okpara University of Agriculture, Umudike Nigeria [2003-2005]

c. Present Academic Position

Professor of Organic/Medicinal Chemistry Michael Okpara University of Agriculture, Umudike Nigeria [2005-Date]

1.1 At Bayero University, Kano (BUK) and Michael Okpara University of Agriculture Umudike (MOUAU) and Covenant University (CU), Ota

i) During my tenure as HOD, Chemistry, BUK, MOUAU and Covenant University, I achieved the following:

· The Academic staff was convinced that Laboratory session with students was as important as teaching. The presence of academic staff during Laboratory class was achieved. This achievement added value to teaching and acquisition of skill by students.

· The Departmental results were sent to Faculty/College Board/Senate promptly.

· The promotion and welfare of our Departmental staff were met as required by Appraisal Committee.

· The Department held a get-together at the end of the session.

· The Department received many consultancy projects (from Raw Materials and Research Development Corporation, Lagos; Coca-Cola Plc Kano due to ability to scout for such projects from some industrial establishments.

· Personal interaction with staff for better understanding and trust

· Regular Departmental meetings to take decision on the affairs of the Department

· The Departmental Calendar of events were approved and circulated. This enabled staff plan in advance in order to meet the demands of the Department.

ii) AS DEAN CNAS MOUAU (2005 – 2009)

The office of the Dean during my tenure achieved:

· The registration of fresh students from all the Departments and issuance of matriculation numbers were achieved to the admiration of Senate.

· The collation and processing of results as approved by the College Board were processed promptly to Senate.

· By offering effective assistance to my six HODs to ensure, timely vetting and presentation of our College results to Senate.

The enviable records built up as the Dean CNAS with regard to prompt presentation of error-free results, received commendation severally at Senate. Departmental matters as it relates to staff and students were treated with dispatch.

· My efforts to process several years of unapproved results from the Departments at CNAS and creativity were commended by Senate

· Also, I attended the joint meetings of Deans of Faculties of Science in NUC during the period.

· Between 2005 and 2009, all nine programmes: Botany, Biochemistry, Chemistry, Physics, Microbiology, Computer Science, Mathematics, Statistics and Zoology earned FULL accreditation from NUC.

· Instituting a viable and functional College Library during my tenure speaks for itself.

Staff and Students Welfare

The staff of the Department, namely, Academic, Technical and Administrative felt self-esteem by:

Ø Regular staff meetings at all levels;

Ø Enhanced entertainment was provided at meetings

Ø Honorarium was paid to staff from the proceeds of consultancy and reviews of laboratory manuals

Ø End-of-year party was held within the context of available resources.

Research Grouping

During my tenure as HOD, staff were encouraged to belong to groups of research discipline under the supervision of either Senior Academics. Assistant Lecturers to Lecturer I levels were encouraged to comply with the arrangement for rapid research productivity

iii) AS CHAIRMAN OF STUDENTS DISCIPLINARY COMMITTEE (2008-2009)

Regular meetings of the Committee were held and cases investigated and treated with fairness and justice. Prompt submission of recommendation of deliberated cases to Senate.

1.2 ACADEMIC RESEARCH PRODUCTIVITY

Indeed, the major thrust of my University service is anchored on teaching and research, teaching being a routine daily duty within the session. However, research is another area of immense excitement.

My research emphasizes three broad themes, namely:

i) The basic and applied research for my academic advancement

ii) Second area aimed at solving community health problems

iii) Interdisciplinary inter institutional group research

· Basic and Applied Research

The academic research projects are concentrated on my areas of teaching which is aimed at academic advancement of knowledge in the areas: Synthetic Organic Chemistry, Medicinal Natural Product Chemistry and Pesticide Chemistry.

o I have recorded 109 publications in International High Impact Outlets in this area of research productivity.

1.1 ACADEMIC DISTINCTIONS

Following my administrative proficiency and academic pedigree, I have many academic distinctions:

o Visiting Professor to many Universities

o External Examiner to various Universities for the assessment of Undergraduate and Postgraduate programmes.

o External Assessors of staff for promotion to Professorial Chairs in many Universities

o Appointed Editor and Editorial Board member of Overseas and some local Journals

o The Patron of Students’ Chemical Society of Nigeria, Kano, Umudike and Ota.

Academic Duties: Postgraduate teaching as well as project supervision leading to the award of M.Sc. and PhD degrees in Synthetic Organic and Natural product chemistry. Undergraduate teaching as well as project supervision leading to the award of B.Sc. (Hons), degree in chemistry.

Postgraduate [M.Sc and PhD] courses – Advanced Organometallic Chemistry, Advanced Physical Organic, Seminar Problems in Organic Spectroscopy, Reactive Intermediates and some synthetic uses, Selected Topics in Organic Chemistry. Carbohydrates and Nucleic acids, Organic Photochemistry. Heterocyclic Chemistry, Organic synthesis

Undergraduate [B.Sc.] courses – Basic Organic Chemistry, Organic Chemistry, Natural Products, Petro-chemistry, Applied Spectroscopy, Physical Organic Chemistry, Heterocyclic Chemistry, Organic synthesis, Photochemistry and Pericyclic Reactions, Organometallic chemistry, Carbohydrate Chemistry and Theory of Molecular spectroscopy, Inorganic Chemistry, Structure and Bonding.

c. Post-graduate Degree Supervised8 PhD supervised.

PhD

i) Oladosu Adebayo Ibrahim (2004) (PGS/2000/3265): Screening of Dioclea reflexa Hood and Schrebera arborea A. Cher. Plants against Multi-drug Resistant Tuberculosis (MDR-TB).

ii) Ibisi, Nkechi E. (2009): Adsorption of Chlorine molecules on gold Clusters

iii) Okoronkwo, Nnenna (2011):Macrolides from Stachytarpheta cayennensis and Tetrapleura tetraptera: Isolation, Characterisation and Pesticidal Evaluation

iv) Ajani, Olayinka Olawale (2011) (CUGP050127):Synthesis of New N,N-Disubstituted Aryl-and Alkylaryl Sulphonamides and their Antimicrobial Properties

v) Ogbuagu, M. N.

vi) Okenwa, Igwe…..(2012)

vii) Iwu, Irenus C. (2013) MOUAU/PG/PhD/06/1089

viii) Uchegbu, Rose Mary (2013) MOUAU/PG/PhD/09/1639

ix)

M.Sc

v) Marilli Issa (2000): Studies of the Synthesis, Spectroscopy and bioactivity of Phosphorus heterocycles.

vi) Ahmed Ali Yakasai (2000): Cytotoxic Evaluation of Trianthema

pentandra Linn, and two other related plants.

vii) Kabir Abdu (2004) (PGS/99/374): Chemotherapeutic agents from

Anogeissus leiocarpus (leaves) against Multi-Drug Resistant

Tuberculosis (MDR-TB)

viii) Muluh Emmanuel Khan (2004) (PGS/99/1379): In the Search of new active agents from Cyperus platycaulis against Myco- bacterium tuberculosis: Phytochemical and bioactivity studies.

ix) Bello Yunusa Makama(2004) (PGS/2000/3034) : Bioactivity and

chemical analysis of Pavetta crassipes: The anticholinesterase

approach.

x) Ikpa, Chinyere Benedictta (MOUAU/PGS/M.Sc /2005): Chemical Investigation of Anticholinesterase agent from Physostigma venenosum (Calabar bean)

xi) Ndukwe, Chinemerem (MOUAU/PGS/M.Sc /2004/706): Chemical Investigation and Bioactivity of Icacina trichantha (tuber) As Anti-TB Agents

xii) Njoku, Chidi (MOUAU/PGS/M.Sc /2005/905): Investigating the Chemical Composition and Anti-bacterial activity of Nymphaea alba L.

xiii) Okoroafor, Ijeoma (MOUAU/PGS/M.Sc /2005): Studies of Harungana madagascariensis Lam.ex.poir (blood tree), Sarcocephalus esculentus Afzel (African peach) and Baphia nitida (Canwood) as Anti-TB Agents

xiv) Aruwajoye, Ifedolapo Olufunke (04CCC01055) (2012): Isolation, Characterization and Anti-TB Activity of leafs of Irvingia gabonesis (Bush mango)

xv) Aguiyi, Ugonna O. MOUAU/PG/MSc/2012/2258

xvi) Okoronkwo, Joseph C. MOUAU/PG/MSc/2012/2492

xvii) Orok, Albert E. MOUAU/PG/MSc/2012/2249

xviii) Egeonu, Mary Onuchi MOUAU/PG/MSc/2013/3515

xix) Obodozie, Faith Chinaza MOUAU/PG/MSc/2013/3264

xx) Onukpado, Favour C. MOUAU/PG/MSc/2013/3263

xxi) Okore, Stanley Eze MOUAU/PG/MSc/2013/3155

xxii)

Post graduate Degree (PhD) under supervision 16 Students

i) Aruwajoye, Ifedolapo O. CUGP/PhD/13/04CC01055

ii) Ajanaku, Christiana CUGP/PhD/13/100274

iii) Njoku, Chidi MOUAU/PG/PhD/11/2167

iv) Igara Chintua MOUAU/PG/PhD/11/1927

v) Ohenhen, Offiong Nelson MOUAU/PG/PhD/11/2055

vi) Onyekwere, Bright C. MOUAU/PG/PhD/15/

vii) Chinwe, Chinwendu O. MOUAU/PG/PhD /15/

viii) Ahamefula, Ahuchaogu A. MOUAU/PG/PhD /15/

ix) Igbodaro, Benson U. MOUAU/PG/PhD /15/

x) Onyekwere, Onyinyechi MOUAU/PG/PhD /15/

xi) Ndukwe, Chinemerem MOUAU/PG/PhD /15/

xii) Orok, Albert E. MOUAU/PG/MSc/2012/2249

xiii) Aguiyi, Ugonna O. MOUAU/PG/MSc/2012/2258

xiv) Egeonu, Mary Onuchi MOUAU/PG/MSc/2013/3515

xv) Obodozie, Faith Chinaza MOUAU/PG/MSc/2013/3264

xvi) Okoye-Agu, Amarachi

Post graduate Degree (M.Sc.) under supervision 10 students

ii) Ogoke, Caleb Tochukwu MOUAU/PG/MSc/2013/2743

iii) Kwekowe, Chinmdi MOUAU/PG/MSc/2014/4003

Membership of Professional Bodies (with dates of first registration)

a) Member – American Chemical Society (ACS) USA no. 2380110 2005

b) Indian Society of Chemists and Biologists (ISCB), 2001

c) Fellow – Third World Academy of Sciences (TWAS/CSIR), Italy 2000

d) Member – Nigerian Society of Pharmacognosy (NSP), 1999

e) Member – New York Academy of Science (NYAS), New York 1997

f) Member – Science Association of Nigeria (SAN), 1993

g) Affiliate member – IUPAC, UK 1992

h) Member – Chemical Society of Nigeria (CSN), 1991

i) Fellow – Indian Council of Chemists (ICC), India 1987

j) Member – Indian Chemical Society (ICS), India 1987

k) Member- Full Gospel Business Men Fellowship International (FGBMFI)

Community Service

a) Consultant Chemist (1992) to Nigerian Bottling Company (Coca-Cola),

Kano. Achievement – Purification of company Plant after contamination with hydrocarbon.

b) Consultant Chemist (1994) to NAFDAC, Kano

Achievement – Chemical analysis of imported raw materials.

c) Men’s leader, Chapel of Revelation, Michael Okpara University of

Agriculture, Umudike, Abia State, Nigeria [2006-2008]

d) Member of Council, Chapel of Revelation, Michael Okpara University of

Agriculture, Umudike, Abia State, Nigeria [2006-2008]

e) Chairman, Local School Board (LSB) Winners Chapel, Ihie Ndume, Umuahia

f) Member, State Church Council (SCC) Winners Chapel, Ihie Ndume, Umuahia

g) Member, Local Church Council (LCC) Winners Chapel, Ihie Ndume, Umuahia

AWARD OF ACADEMIC HONOURS

i) Fogarty Award to Wayne State University, Detroit, Michigan

ii) Fulbright Scholar Award to the University of California San Francisco, California, USA

iii) UNESCO/TWAS/CSIR Fellow to the Central Drug Research Institute (CDRI), Lucknow India

iv) TWAS Visiting Professor to IITM Chennai, India

v) Fellow Academy of Science for the Developing World (FTWAS)

vi) Member of New York Academy of Science

vii) Fellow of Indian Council of Chemists (ICC)

viii) TWAS-ROSSA Mentor Award 2006

Awards and Research Grants

i) Fogarty Fellow as Visiting Professor to Wayne State University, Detroit, Michigan USA 1997

ii) Senior Fulbright Scholar Award as Visiting Professor to the University of California San Francisco, California USA (UCSF) 2000-2001

iii) UNESCO-TWAS Visiting Professor Award to Indian Institute of Technology (IITM) Chennai. Two visits of three months duration each between 2003-2006 First Visit September –December 2003 $25,000.00

iv) UNESCO-TWAS Visiting Professor Award to Indian Institute of Technology (IITM) Chennai. Two visits of three months duration each between 2003-2006 Second Visit January-April 2005 $25,000.00

v) TWAS Research Grant Award No. 03-325 RG/CHE/AF/AC of USD $10,000.00 (August 2004- Dec.2005) for In Search of new Phytopesticides-the anticholinesterase approach. Tenable at Michael Okpara University of Agriculture, Umudike, Abia State, Nigeria

vi) UNESCO-TWAS Visiting Associate Award to Indian Institute of Technology (I.I.T) Chennai, Two visits of three month’s duration each between [2006-2010]. * First visit February to May 2007, $25,000.00

vii) UNESCO-TWAS Visiting Associate Award to Indian Institute of Technology (I.I.T) Chennai, Two visits of three month’s duration each between [2006-2010]. * Scheduled second visit August-Sept. 2010 $25,000.00

vii)

viii) These awards attracted specialized equipment, chemical and glassware totally US$50,000.00 (7.5m Naira) to the Department of Chemistry, MOUAU in March 2006. Examples of such equipment are:

1 State-of-the-art Digital Rota evaporator Heildolph 4000 Series

2 Water aspirator pump (Surface and Emersion )

3 Calibrated glass traps

4 Rota vacuum Pump

5 Specialized bulb pipettes

6 Pyrex Columns (various sizes)

7 Extra Teflon coated Rota condenser

POSITIONS HELD IN THE UNIVERSITY SYSTEM

UNIVERSITY RESPONSIBILITIES AT BUK, MOUAU and CU

(i) Director, Instruments and Maintenance Committee 2004 – 2009

(ii) Member , University Library Committee

(iii) Member, University Appointment and Promotion Committee

(iv) Head, Department of Chemistry 1996, 2004

(v) Dean, College of Natural and Applied Sciences of Science 2005-2009

(vi) Member, University Senate 2004 till date

(vii) Chairman Students Disciplinary Committee, 2006-2009

(viii) Member, Strategic Plan Draft Committee MOUAU 2006

(ix) Member, Strategic Plan Draft Committee, Covenant University (CU)

(x) Member, University Ceremonials Committee

(xi) Member, Panel of Examiners, Postgraduate School, CU (2010-2011)

(xii) Member, Senate Committee on e-Examination, (2010-2011) CU

(xiii) Member, University Governing Council 2017 till date

(xiv) Member, Council Committee on Staff Discipline 2017 till date

(xv) Member, Council Appraisal Committee 2017 till date

(xvi) Member, Senate Committee on e-Examination {Use of Optical Mark Reader (OMR)} 2018

1. MEMBERSHIP OF UNVIERSITY SPECIAL COMMITTEE

(i) Chairman, Senate Business Committee

(ii) Chairman, University Curriculum Committee

(iii) Chairman, University Staff Disciplinary Committee

(iv) Chairman, Senate Committee on Convocation Honorary degree 2007

(v) Member, Postgraduate School Board 2005-2009

(vi) Chairman, Ad-hoc Committee on Screening of MOUAU Security Personnel 2007

(vii) Member, Board of Centre for Continuing Education (CEC)

(viii) Member, Council Committee on CEC

(ix) Chairman, University Committee to Review Student Information Handbook

(x) Chairman, University Committee on the introduction of new programmes in CEC

(xi) Member, University, TETfund Committee

2. COLLEGE RESPONSIBILITY

i) Chairman, College Appointment and Promotion Committee

ii) Chairman, College Committee on Accreditation

iii) Chairman, College Library Committee

iv) Chairman, College Committee on ICT

v) Chairman, College External Linkage Committee

3. DEPARTMENTAL RESPONSIBILITY

(i) Chairman, Organic Chemistry Unit,

(ii) Chairman, Syllabus Review Committee

(iii) Chairman, staff Recruitment Committee

(iv) Member, syllabus Review Committee

(v) Member, Postgraduate Committee

(vi) Chairman, departmental Promotion and Appointment Committee

(vii) HEAD, Department of Chemistry

MEMBERSHIP OF RELIGIOUS ORGANISATION

Member, Winners Chapel Faith Tabernacle, Canaan Land Ota, Nigeria

Member, Winners Chapel Ihie Ndume, Umuahia, Abia State, Nigeria

COMMUNITY SERVICE/AWARD

(i) Award by Students of Department of Chemistry for Advancement of Chemistry

(ii) Award by National Association of Nigerian Students (NANS) 2006/2006

LIST OF PUBLICATIONS

Dissertations and Thesis: (1989)

PhD Dissertation titled “Synthesis, Structural and Physiological studies of some Organophosphorus Heterocyclic Compounds” submitted to the Department of Chemistry, S. Venkat University, Tirupati 517 502. India

MSc. (1985) Thesis titled ‘Synthesis of some selected biologically active compounds’ submitted to the Department of Chemistry, S. Venkat University, Tirupati 517 502. India

Journal Articles

1. In Search of New Organophosphorus Pesticides and Insecticides, Part-

I: Synthesis and Anticholinesterase properties of substituted phenoxydi

naphtha (2,1-d:1,2,f)(1,3,2)dioxaphosphepin 4-oxides.

E. O. JohnBull, M.S.R. Naidu and C. Nagaraju, Indian J. Chem.,

29B (7)(1990) 688-690; Chem. Abstr. 113 (1990) 231499n

2. In Search of New Organophosphorus Pesticides and Insecticides

Part-II: Synthesis and Anticholinesterase Studies of New 4-substituted

Amino/mercaptodinaphtho (2,1-d:1,2-f)(1,3,2)dioxaphosphepin 4-

sulphides.

M.S.R. Naidu, E. O. JohnBull and C. Nagaraju, Indian J. Chem.,

29B (7) (1990) 691-693; Chem. Abstr. 113 (1990) 231500f

3. Synthesis of 6-substituted phenoxy-6,7-dihydro–5H-dibenzo[c,h]

[1,2,5,7,6] dithiadiazaphosphonine 6-oxides.

M.S.R. Naidu, E. O. JohnBull& M.V.S.R. Prasad, J. Indian Chem.

Soc. 69(7) (1992) 409-10; Chem. Abstr.118 (1993) 213184e

4. A Colorimetric method for standardizing Biological activity of some

Organophosphorus compounds.

N.V. Nanda Kumar, E.O. JohnBull, E. Prabhakar, C. Nagaraju, &

M.S.R. Naidu, Pollut. Chem. Res. 9(4) (1990), 133-139; Chem. Abstr.116

(1992) 1812s

5. Synthesis and (1H, 13C, 31P) NMR spectra studies of novel 2-aryloxy/cyclic

amino-3-(4-methylphenyl)-1H-naphth[1,2-e][1,3,2]oxazaphosphorine 2-oxides/sulphides& 13C NMR data for some 4-subt-dinaphthodioxaphos phorine-4-oxides/sulphides.

C. Naga Raju, M. S. R. Naidu, E. O. JohnBull & M. C. Reddy, Magn.

Reson. Chem. UK 28(10) (1990), 908-913; Chem. Abstr. 114 (1991) 80904h.

6. Synthesis and Structural Studies of new 3-(aryloxy)2,3-dihydro-2-(4-

methylphenyl)-1H-naphth(1,2-e)(1,3,2)oxazaphosphorine 3-oxides.

M.S.R. Naidu, E. O. JohnBull & C. Nagaraju. IUPAC Bull. Org.

Chem., IKCOC4 Japan17-L-20 (1989) 149-152

7. Synthesis, Structural and Biological activity of new 5.5-di-t-but-2-aryloxy

spirobi(1,3,2)benzodiazaphopholes and Naphthodiazaphosphoranes.

E. O. JohnBull, M.S.R. Naidu & C. Nagaraju, IHCAC2 Bull. Hetero-

atom Chem., New York, 2 (1989) 64-68

8. Synthesis, Structural and Biological activity of some dioxaphosphepin

4-oxides and sulphides.

E. O. JohnBull, M.S.R. Naidu & C. Nagaraju, IUPAC Bull. Org. Synth.

France 4 (1988) 231

9. Synthesis and Physiological studies of New 3-(aryloxy-2,3-dihydro-2-

(4-methyl/chlorophenyl)-1H-naphth(1,2-e)(1,3,2)oxazaphosphorine 3-

oxides.

E. O. JohnBull, M.S.R. Naidu & C. Nagaraju, XXV Proc. Indian Chem.

Soc. (1988) Med-7

10. Synthesis and structural studies of New subs aryloxyspirobi

(dinaphthalene-2,3-diol/di-p-t-butylcatechol)phosphorane and (2-

substituted aryloxy)naphtha(2,3-d)-1,3,2-dioxaphosphole 2-oxides.

E. O. JohnBull, M.S.R. Naidu & C. Nagaraju, Bull. Indian Council

Chem., 8(1988) 00-8

11. Colorimetric method for standardizing Biological activity of some

Organophosphorus compounds: Part B

N.V. Nanda Kumar, E.O. JohnBull, E. Prabhakar, C. Nagaraju, &

M.S.R. Naidu, Environmental Chem. Management 9(1) (1992), 9201-192

12. Organophosphorus Derivatives from methylchloralhydrate and

trichloroethanol.

E. O. JohnBull., Bull. Sci. Assoc. (Nig) 19(1) (1993) 26.

13. Synthesis of 6-subt-tetrahydro-isoquinobenzodiazaphosphorine 6-

oxides/sulphides

C. Nagaraju, E. O. JohnBull & M. S. R. Naidu, Indian J. Heterocycl.

Chem. 4(1), (1994) 41-44; Chem. Abstr.122 (1995) 133281b.

14. Refused derived Fuel Processing from Nigerian Petrochemical

Industries.

E. O. JohnBull., Nioc Res. Inst. Petrol. Ind., Iran 1 (1993) 173-F.

15. Organophosphorus Anti-tumor Agents PART-II: Synthesis and

characterization of some dioxaphosphocinsulphides.

E. O. JohnBull& D. N. Harpp., Bull. Sci. Assoc. (Nig). 19(1)(1993)

26-27.

16. Isoquino[1,2-c][1,3,2]benzodiazaphosphorine derivatives :New

Potential Agents for Cancer Chemotherapy

E. O. JohnBull & M. S. R. Naidu, Phosphorus, Sulfur, Silicon & Related

Elem. USA (2000) 162 231-243; Chem. Abstr. 133 (2000) 296496s

17. Synthesis of sub cyclohexyloxy/quinoxy/-6,7-dihydro-5H-dibenzo[c,h]

[1,2,5,7,6] dithiadiazaphosphonine 6-sulphides.

E.O. JohnBull. M.S.R. Naidu & C. Nagaraju., ChemClass Zaria-

Nig.1 (1998) 90-93.

18. Novel spirobi 3-hydroxy{2,3-dihydro-2-(4-methylphenyl)-3-chloro-1H–

naphth[1,2-e][1,3,2]oxazaphosphorine}. Spectral[(1H, 13C, 31P)NMR

and Mass] features due to positional isomerism.

E. O. JohnBull, M.S.R. Naidu & C. Nagaraju., ChemClass Zaria-

Nig.1(1998) 103-107.

19. In search of new Organophosphorus Pesticides and Insecticides. Part-III: Synthesis and anticholinesterase studies of new 3-(subs)-quinoxy/pyridoxy/cyclicamino-2,3-dihydro-2-(4-chlorophenyl)-1H-naphth[1,2-e][1,3,2] oxazaphosphorine 3-sulphides.

E. O. JohnBull& M.S.R. Naidu., Phosphorus, Sulfur, Silicon &Related

Elem. USA (2000) 167, 9-20; Chem. Abstr. 135 (2001) 122558q

20. Potential Psychosedative and tranquilizing Agents Part-I: 3,4-

dihydro(1H)-1,5-benzodiazocin-2-ones.

E. O. JohnBull, M. A. K. Bayero, A. Y. Maigatari & M. D. Gimba., Org.

Prep. & Proced. Intl. USA 2001.

21. Potential Psychosedative and Tranquilizing Agents Part-II: 1-Ethyl/chloro-3,4-dihydro (1H)-1,5-benzodiazocin-2-ones.

E. O. JohnBull, B. Hilton & G. Chmurny. Synlett USA 2001

22. The Search for New Antimicrobial Agents: Efficacy of the Leave Extracts

of Lorathus dedoneifolios.

E. O. JohnBull & I. Tajo, Nat. Prod. Drug Dev. (Nig) 1, (1998),

33-34.

23. Chemical Investigation and Bio-effects of Cochlospermum tinctorium on

some selected microorganisms.

E. O. JohnBull & U. Ibrahim, Nat. Prod. Drug Dev. (Nig) 1, (1998) 35-36.

24. Novel Antimicrobial and Chemotherapeutic Agents. 2- Sulphanilamido-

(sub)-benzo[1,2-d]thiazoles.

E.O. JohnBull, M. Gambo, Z. Abdu, Y. Bukar & M.S.R. Naidu., J.

Chem. Soc. Nig. (1998), 23, 35-40

25. New Anticholinesterase Agents. Synthesis of 3-(2,2,2-trichloro)ethoxy/

pyridoxy/quinoxy-2,3-dihydro-2-(4-chloro/methyl/methoxy)-1H-[1,2-e]

[1,3,2] oxazaphosphorine 3-oxides.

E. O. JohnBull & M.S.R. Naidu., J. Chem. Soc. Nig. (1999) 24, 94-100

26. Chiral cis-1-amino-2-Indanol in oxazaphosphole synthesis: Potential

HIV Protease Inhibitor

E. O. JohnBull & I. Marilli, Medicinal Chem. Res. USA (2001) 7/8, 540

27. Bioactive Evaluation of extracts of Euphorbia hirta: The Anti microbial

and Anticholinesterase approach

E. O. JohnBull & S. O. Afolabi, J. Phytomedicine & Therapeutics 6(2)(2001), 79-84

28. Spirobibenzodioxaphospholes – New Acetylcholinesterase Inhibitors.

E. O. JohnBull, Curr. Trend Drug Res., 14(2), (2002) 82-84

29. Dynamics of selected secondary metabolites from Piliostigma thonningi

using high-resolution NMR inverse experiments.

E. O. JohnBull & Roy Raja, Magn. Reson. Chem. UK (2017) submitted.

30. Exploration of extracts of some Nigerian Medicinal Plants-The Anti

microbial and Anticholinesterase Approach

E. O. JohnBull, J. Ali, S. Abdullahi, A. D. Mustapha, R. Dele, K. Musa,

M. H. Aminu & M. Sylvester, Indian. Chem. Biol.5, (2001), 41-45

31. In the Search for new organophosphorus Pesticides and Insecticides.

Part-IV: Studies in the Synthesis, Spectral and Bioactivity of – (subs)-

Spirobi [benzothiaoxazaphospholes].

E. O. JohnBull, Phosphorus, Sulfur, Silicon & Related Elem. USA (2017) In Press proof copy

32. In the Search for new Organophosphorus Pesticides and Insecticides.

Part-V: Synthesis and Anticholinesterse Properties of 2-(subs)-4H–

1,3,2-benzodioxaphosphorine 2-oxides/sulphides.

E. O. JohnBull, Phosphorus, Sulfur, Silicon & Related Elem. USA

(2017) proof copy

33. Synthesis of Novel spirobi[indan-oxazaphospholes] from cis-1-amino-

2-indanol.

E. O. JohnBull, European J. Org. Chem. (2017) In press

34. Synthesis of 6-substituted 2-pyridoxy-6,7-dihydro-5H-dibenzo [c,h]

[1, 2, 5, 7] dithiadiazaphosphonine 6-oxides/sulphides

E. O. JohnBull, J. Heterocycl. Chem. Japan (2006)

35. Potential Psychosedative and Tranquilizing Agents Part-III: 3,4-dihydro

(1H)-1,5-benzodiazocin-2-ones.

E. O. JohnBull, M. A. K. Bayero, A. Y. Maigatari & M. D. Gimba.,

Curr Trend Drug Res. 2002, 12(3), 30-33

36. Organophosphorus heterocyclic compounds as viable tools in drug

design and development.

E. O. JohnBull, I. Oladosu, K. Abdu, E. K. Muluh and B. Y. Makama,

Recent Advances in Organometallic Catalysis, Indo-US P (26) (2003),

49-51

37. Polluted Soil: Impact on Plants and Human exposure.

N. E. Okoronkwo, E. C. Onwuchekwa and E. O. JohnBull, Proceedings

American Chemical Society, Division of Environmental Chemistry Atlanta

(2006) 663-669

38. Physicochemical Properties of Municipal Waste Dump Soil: Impact on Plan

Growth.

N. E. Okoronkwo, A. O. Ano and E. O. JohnBull, Proceedings

American Chemical Society, Division of Environmental Chemistry, Atlanta

(2006) 377-383

39. Structural Elucidation of a New anti-MDR-TB Macrolide from Dioclea

reflexa Hook.

E. O. JohnBull, I. A. Oladosu& M. O. Fatope J. Nat.

Products 2018 submitted

40. Schreboside: A New Anti-TB agent from Schrebera arborea.

E. O. JohnBull & I. A. Oladosu Phytochemical Research USA, 2018

Accepted

41. Diocleoside C: An established Inhibitor of H37Ra and H37Rv strains of

Mycobacterium tuberculosis.

E. O. JohnBull & Pharmaceutical Biology USA, 2009

In press proof copy

42. Phytochemical Screening of Cyperus platicaulis for anti-Tuberculosis

Agents Part II

E. O. JohnBull & E. K. Muluh, Pharmaceutical Biology USA 2009

In press proof copy

43. Bioactivity and Chemical analysis of Pavetta crassipes: The anticholin-

esterase approach. Part III

E. O. JohnBull & B. Y. Makama, Phytochemical Analysis USA 2009

In press proof copy

44. Chemotherapeutic Agents from Anogeissus leiocarpus (leaves) against

Multi-Drug Resistance Tuberculosis (MDR-TB). Part I

E. O. JohnBull & K. Abdu, Phytochemical Research USA 2011

Accepted

45. Isolation of potential Anti-Tuberculosis Agents from Polycarpaea

corymbosa

E. O. JohnBull, J. Natural Remedies, Bangalore-India 2018

submitted

46. Novel Macrolides from Ficussy comorus as potential Anti-TB

compounds.

E. O. JohnBull, J. Herbs, Spices & Medicinal Plants, Massachusetts-

USA, 2018 submitted

47. Degradation of Phytopesticides: The Photochemical Approach

E. O. JohnBull, International Journal of low Radiation; Abstr. No. 13, 2006

48. Tropical Plants in the Production of Agricultural Pesticides E. O. JohnBull, Proceedings American Chemical Society, Division of

Organic Chemistry, Boston (2007) ID 1122538

49. Phytochemical and Antimicrobial screening of Ethanol extracts of the

leaves of Anogeissus leiocarpus

E. O. JohnBull & K. Abdu, Biol. & Environ. Science J. for the Tropics, 3

(3) (2006) 162-164

50. Phytochemical Analysis and ChE Inhibition of Cyperus Platycaulis.

E. O. JohnBull & E. K. Muluh, The Pacific journal of Science and Technology 2009, 10(1), 350-356

51. Technical Report (Synopsis)

Lead Compounds from Natural Products in Drug Design via NMR

solution structure of DNA-binding complexes.

Submitted to : The Central Drug Research Institute (CDRI)

Lucknow India. [September 2001]

Sponsoring Organization : Council of Scientific and Industrial Research (CSIR)

Government of India

52. Benzodiazacinones: The New Era Tranquilizers

E. O. JohnBull, TWAS-ROSSA I African Young Scientists Conference Nairobi-Kenya, Vol. 1, Issue 2, Dec. 12-15, 2006

53. Oladosu, A. I., JohnBull, E. O. and Zubair, M. F. (2006): Anticholinesterase and Antibacterial Activities of Dioclimidazole from Dioclea reflexa seeds, Fitoterapia 77, 571-575

54. Oladosu, A. I., JohnBull, E. O. and Zubair, M. F. (2010): Bioactive of Dioclimidazole from Dioclea reflexa seeds, Middle-East Journal of Scientific Res 6(6), 575-579

55. Cholinesterase and Microbial activities of Tetrapleura tetraptera

N.E. Okoronkwo, E. O. JohnBull, J. Applied and Nat. Sci. 4(2); 156-163

2012

56. Microlide from Tetrapleura tetraptera roots.

N.E. Okoronkwo, E. O. JohnBull, , D. E. Okwu, Academic Res. Int. 1-12, 2012

57. Synthesis and Antimicrobial Activity of N,N-Diethylamide bearing benzene sulfonamide derivative O. O. Ajani, O. B. Familoni, E. O. JohnBull, and Z. Sujiang American Chemical Science Journal (ACSJ) 3(1), 34-49, 2013.

58. Room Temperature Synthesis and Antibacterial Activity of new sulfonamides containing N,N-diethyl-substituted Amido moiety.

O. O. Ajani, O. B. Familoni, E. O. JohnBull, and Z. Sujiang. Int. J. Med.

Chem. 2012 Galley

59. Okenwa, U. I. and JohnBull, E. O. (2013): Isolation, Characterization and Antibacterial Activity of 4-hydroxy-2-(1-p-tolylethylidene)-5,6-dihydrofuro-3-one from seeds of Brachystegia eurycoma Harms. Int. J. Drug Dev. & Res 5(2): 329-334

60. Okenwa, U. I. and JohnBull, E. O. (2013): Isolation, Characterization and Antibacterial Activity of 4-(4-phenyl-1,4-dihydronaphthalen-1-yl) pentanoic acid from the stem Bark of Brachystegia eurycoma Harms. 5(2), 335-340.

61. Okenwa, U. I. and JohnBull, E. O. (2013): Isolation, Characterization and Antifungal Activity of 5-hydroxy-3-methyl-2-phenyl-6,7-dihydrofuro-chromen-4-one from the seeds of Brachystegia eurycoma (Harms), Int. Res. J. Pharm. App. Sc. 3(6), 47-50

62. Ikpa, C. B.C. and JohnBull, E. O.(2013): Isolation and Characterization of Colchichine from Physostigma venenosium. J. Applied Chemistry 5(6), 51-54

63. JohnBull, E. O. and Ikpa, C. B. C. (2013): Isolation, Characterization and Anticholinesterase Activities of Physostigma venenosium (Calabar Bean). Amer J. Sci. Ind. Res. 4(2), 226-230

64. Uchegbu, R. I. and JohnBull, E. O. (2013). Isolation and Characterization of Estra-2-en-17-ol-3-yl benzoate from Mucuna pruriens (Utilis). Journal of Natural Science Research, 3(11), 84-87

65. Uchegbu, R. I., JohnBull, E. O. and Iwu, I. C. (2014): Isolation and Characterization of 5,7-dimethoxy-4-prpoxy flavones from the seeds of Mucuna pruriens (Utilis). Journal of Natural Science Research, 4(4), 114-118

66. Iwu, I. C., JohnBull, E. O. and Uchegbu, Rosemary. (2014): Isolation and Characterization of 4, 15-Cholestene-3-yl benzoate from the stem bark of Pentaclethra macrophylla (P. Benth). International Journal of Emerging Knowledge, 1(10), 185-192

67. JohnBull, E. O.(2013): Molecular Transformations: From Matter to Wealth 19thProfessorial Inaugural Lecture, Michael Okpara University of Agriculture, Umudike, Abia State, Nigeria

68. JohnBull, E. O.(2014): Molecular Transformations: From Matter to Wealth Part II Chemistry International Conference – CUCIC 2014, Covenant University, Canaan Land Ota, Nigeria Book of Abstract pp vi

69. JohnBull, E. O., Ahuchogu, A. A. and Uchegbu, R. I. (2014): Isolation and characterization of Estra-17-propoxy, 3’,4’-dimethoxy-3yl benzoate from the leaves of Spondias mombin Linn Journal of Natural Science Research, 4 (19), 172-177

70. JohnBull, E. O., Ahuchogu, A. A. and Uchegbu, R. I. (2014): Isolation and characterization of 16–O-(3’, 4’,5’-trimethoxybenzoyl) -3-O-b-D-diglucopyranosyl cholest-15-ene from the leaves of Spondias mombin Linn American Journal of Chemistry and Applications 1(3)28-31

71. Onyekwere, B. C., JohnBull E. O. and Uchegbu, R. I. (2014): Isolation and characterization of Baphianoside from the leaves of Baphia nitida Journal of Natural Science Research, 4(19) 138-143

72. JohnBull, E. O., Onyekwere, B. C. and Uchegbu, R. I. (2014): Isolation and characterization of 16-b-(b-D-glucopyranosyl) lanost-1,5,11,15-tetraene-3-yl-6-O-(3’,4’,5’-trimethoxycyclohexanoyl)-b-D-glucopyranoside from the leaves of Baphia nitida, American Journal of Chemistry and Applications 1(3), 32-35

73. Okoronkwo, N. E. and JohnBull, E. O. (2015): Isolation and Characterization of compound from Stachytarpheta cayennensis (Rich) Vahl Leaves American Institute of Science Chemistry Journal 1(3), 74-80

74. Njoku, P. C., JohnBull, E. O., Uchegbu, R. I. and Ogoko, E. C. (2016): Isolation and Characterization of compound of Zygadenine-N-ribofuranoside from the leaves of Nymphaea alba Lily American Chemical Science Journal 12(4), 1-5

75. Olanrewaju, I., JohnBull, E. O., Egaogheneverere A., T., Mordi, R. and Ayo-Ajayi, J. (2016): Pinusglabra – As a Potential Source of anti-Mycobacterium tuberculosis agent: Phytochemical and antimicrobial studies of its stem extracts CU-ICADI pp 165

76. Ajanaku, C. O., JohnBull, E. O., Mordi R. C., Ajani, O. O., Olugbuyiro, J. A. O., Owoeye, T. F., Taiwo, O. S. and Ataboh, J. U. (2016): Phytochemical Screening and Antimicrobial Studies of Crateva adansonii Leaf Extract Covenant Journal of Physicl and Life Sciences (CJPL), 4 (2), 36-41

77. Ahachaogu, A. A., Okoronkwo, J. C. and JohnBull, E. O. (2017): Secondary Metabolites from Mimosa Pudica: Isolation, Purification and NMR Characterization, Journal of Applied Chemistry, 10 (3), 15-20

78. Ahachaogu, A. A., Okoronkwo, J. C. and JohnBull, E. O., Obike, A. I. and Tochukwu Ugonna (2017): Quantitative Determination of Secondary Metabolites and Antibacterial Activity of Mimosa Pudica: Int. Journal of Medicinal Plants and Natural Products, 3 (2), 1-5

79. Ahachaogu, A. A., Okoronkwo, J. C., Obike, A. I., Igara, C. E., Nnorom, I. C. and JohnBull, E. O. (2018): Reverse Osmosis Technology, its Applications and Nano-Enabled Membrane, International Journal of Advanced Research in Chemical Science, 5 (2) 20-26

80 Olanrewaju, I., Mordi; R. C. and JohnBull, E. O. (2018): Antibacterial, Antifungal and Anti-tubercular Activities of Chloroform Fraction of the Leaf Extract of Irvingia gabonensis (African Bush Mango), Saudi Journal of Biological Sciences
Accepted

CONFERENCE PAPERS

81. Synthesis and Structural Studies of 6-amino/mercaptobenzo(d,f)(1,3,2)

dioxaphosphepin 6- sulphides

M.S.R. Naidu, E. O. JohnBull & C. Nagaraju., VII Annual Conf.

Indian Council of Chemists Gwalior India Dec. 28-30, 1987

82. Synthesis, Structural and Biological activity of some dioxaphosphepin

4-oxides and sulphides.

E. O. JohnBull, M.S.R. Naidu & C. Nagaraju, 4thIUPAC Conference on New

Aspects of Organic Synthesis, Nancy, France 1988

83. Synthesis of naphth(1,2-e)(1,3,2)oxazaphosphorine 3-oxides

M.S.R. Naidu, E. O. JohnBull & C. Nagaraju, 4th International Kyoto

Conference on Organic Chemistry, Kyoto Japan 1989

84. Synthesis, spirobi(1,3,2)benzodiazaphopholes and Naphthodiazaphosphoranes.

E. O. JohnBull, M.S.R. Naidu & C. Nagaraju, 2ndInternational Heteroatom Chemistry Conference New York, 1989

85. One-pot Synthesis of some Anti-cancer Drugs from benzo/naphtha

oxazaphosphoranes

E. O. JohnBull., XVI Annual Conf. Chem. Soc. Nig. Owerri

Sept. 22-26, 1991

86. Organophosphorus Derivatives from Paracetamol (p-acetamidophenol)

E. O. JohnBull & K. Sarafa XVII Annual Conf. Chem. Soc. Nig. Lagos, Sept. 21-23, 1992

87. Recent Studies of Pyridinobenzodiazapinones PART-I : Antihypnotic

Drugs

E. O. JohnBull& M.D. Gimba XVIII Annual Conf. Chem. Soc.

Nig. Kano May 29- June 3, 1994

88. Synthesis of some Biologically active Sulphonamides

E. O. JohnBull& Z. Abdu, XXXV Annual Conf. Sci. Assoc. Nig.

Abeokuta June 4-8, 1995

89. Spectrometric Identification of circulating drugs.

E. O. JohnBull National Workshop on Food and Drug Quality

Assurance Ibadan March 23-27, 1993

90. Synthesis of some Biologically active Naphthothiazole derivatives.

E. O. JohnBull& K.M. Hassan, XIX Annual Conf. Chem. Soc.

Nig. Port Harcourt Sept. 22-26, 1996

91. Synthesis of Novel Substituted Benzoimidazoles

E. O. JohnBull XX Int. Conf. Chem. Soc. Nig. Kaduna Sept.

22-26, 1997

92. In Search of New Antimicrobial Agents PART-II : Bio-effects of the stem extracts of Loranthus dedoneifolios

E. O. JohnBull& I. Tajo, XXI Annual Conf. Chem. Soc. Nig.

Ibadan Sept 20-25, 1998

93. In the Search for New Antimicrobial Agents PART-III: Screening

of Combretum herbaceum for antimicrobial activity using aseptic

E. O. JohnBull & A. Tijjani XXI Annual Conf. Chem. Nig. Ibadan

Sept. 20-25, 1998

94. In the Search of New Antimicrobial Agents Part-III: Efficacy of the

leave extracts of Loranthus dedoneifolios

E. O. JohnBull& I Tajo, Conf. Natural Products in Drug Development,

Ile-Ife Oct. 18-21, 1998

95. Chemical investigation and Bio-effects of Cochlospermum tinctorium on

selected microorganisms.

E. O. JohnBull& U. Ibrahim, Conf. Natural Products in Drug

Development, IIe-Ife Oct.18-21, 1998

96. Anticholinesterase Inhibitory Effects of Bioactive Constituents from

Momordica charantia.

E. O. JohnBull, G.A. Dunia & A.A. Yakasai, The Nigerian Society of

Pharmacognosy, Zaria Dec. 1-4, 1999

97. Chiral 1-Amino-2-Indanol in Oxazaphosphole Synthesis: Potential HIV

Protease Inhibitors.

E.O. JohnBull& I. Marilli, XXII Annual Conf. Chem. Soc. Nig. Jos

Sept. 21-24, 1999

98. Degradation of Phytopesticides: The Photochemical Approach.

E.O. JohnBull, International Conference on Radiation Biology, BHU

Vanarasi, November 20-22, 2006

99. Screening of the extracts of Anogeissus leiocarpus for Anti-tuberculosis

against: The enzyme estimation approach.

E. O. JohnBull, K. Abdu: XXX International Conf. Chem. Soc. Nig. On Global Development-Environmental Concern, Lagos, September 26-30 p. 23 2006

100. Phytochemical Analysis and Cholinesterase (ChE) Inhibition of Cyperus platicaulis

JohnBull, E.O. and Muluh, E.K: XXX Anniversary Celebration of Living Faith Church Canaan Land Ota May 02 to May 07 2011 pp121

101. Phytochemical Screening of Cyperus platicaulis for Anti-Tuberculosis Agents Part-II

JohnBull, E.O. and Muluh, E.K: XXX Anniversary Celebration of Living Faith Church Canaan Land Ota May 02 to May 07 2011 pp122

102. Essential Oil Composition of the seeds of Mucuna Pruriens (UTILIS)

Uchegbu, R. I., JohnBull, E.O., Njoku, P.C. and Igara, C. E. XXXVII Annual International Conference, Workshop and Exhibition Uyo Akwa Ibom September 07 to September 12, pp113 2014

103. Facile Synthesis, Characterization and Evaluation of the Antibacterial Activity of 1-(Benzylsufonyl)pyrrolidine-2-carboxylic acid and other sulfonamide derivatives for future drug design

Ajani, O.O., Familoni, O.B., JohnBull, E.O., Owoeye, T.F., Akinsiku, A.A. and Wu, F.XXXVII Annual International Conference, Workshop and Exhibition Uyo Akwa Ibom September 07 to September 12, pp 133 2014

Distinguished Invited Papers

104. In the Search for new Synthetic pesticides and Insecticides: Lecture

delivered to the Academic and Professional body at the Indian Institute of Technology Madras, Chennai India.

Host: Professor S. Sundararajan and Professor S. Vancheesan, Head Department of Chemistry IITM. 2003

105. In the Search for new Phytopesticides and Insecticides: Lecture delivered to the Academic and Professional body at the Indian Institute of Technology Madras, (IITM) Chennai India.

Host: Professor S. Sundararajan- Head, Prof D. N. Sudheendra Rao, Department of Chemistry IITM. 2005

106. Solid Waste Management Research and Management in Abia State: Lecture delivered to stake Holders in Environmental Management in Abia State.

Sponsoring Organization: Ministry of Environment, Government of Abia State; held at Hotel de La Paix Aba. 2006

107. Developing new Chemotherapeutic Agents for Multidrug Resistant Tuberculosis (MDR-TB) from tropical medicinal plants: Lecture delivered at the Department of Chemistry, Indian Institute of Technology, Madras, Chennai India.

Host: Professor S. Sundararajan and Professor Sankararaman-Head, Department of Chemistry IITM. 2007

108. Environmental Green and Cleanliness in Abia State: Lecture delivered to Environmental Senior personnel and Primary Health Officers in Abia State.

Sponsored by Hon Commissioner, Ministry of Environment, Government of Abia State; Held at the Multipurpose Hall of the Ministry of Environment, Government of Abia State, Umuahia. 2007

109. Building a Robust Research Base and Competencies for Continued Relevance. Lead paper at the 2010 Covenant University Advance on 16th October, 2010. Venue – African Development Centre, Covenant University.

Hobbies

a) Reading b) Tennis c) Cricket d) Swimming and e)Computer Applications

Current Research Work:

Considering the efficacy of some tropical plants in the production of agricultural pesticides as well as medicinal formulation by traditional medical practitioners, a methodology for the production and administration of plant based drugs is being developed in close collaboration with Scientists at a centre of excellence such as the Central Drug Research Institute (CDRI) Lucknow India .This will go a long way in reducing the over dependence of the populace on expensive and (of course) imported drugs. Isolation, characterization and clinical application of some medicinal natural products with a special focus on their anti-cholinesterase, anti-tuberculosis, anti-cancer, antiviral, antimalarial, antifungal and antibacterial activity are in progress. Based on their ethnomedical history, freshly powdered leaves, twigs, stem and roots of Momordi cacharantia, Euphobia hirta, Combretum herbaceum, Cochlospermum tinctorium, Cassia occidentalis, Xylopia aethiopica, Cyperus platicaulis, Trianthema pentendra, Anogeissus leiocarpus, Carallium dalzeilli, Piliostigma thoningii, Dioclea reflexa, Pavetta crassipes etc. obtained from Northern Nigeria are currently being explored with a vision to introduce non-resistant agents for the treatment of various human and veterinary infections; with major emphasis on Multi-Drug Resistant Tuberculosis (MDR-TB). Also in progress is the development of new bioactive molecules and heterocycles; and novel synthetic methods using organophosphorus chemistry.

Other Research interests: Career Plan and Progression.

Diastereoselective Catalytic-Epoxidations, diastereoselective Ring expansion and rearrangements, stereoselective synthesis and biconfirmationality studies. Studies of the sequence-specific three dimensional structures of comparatively short nucleic acid sequences (generally less than ~20 base pairs in length) and some pertinent protein complexes which can be determined using NMR techniques in combination with computational tools. Clinical chemistry of commercial plant-protection formulations based on natural products extracts; as well as activity guided synthesis and physiological studies of novel heterocycles possessing appreciable chemotherapeutic values. Control of irrational use of traditional medicines and modifying the existing pharmacopeia of medicinal plants in Nigeria.

REFERENCES:

1. Professor Ekundayo Adeyemi

(Former Vice Chancellor FUTA)

Department of Architecture

Covenant University, CanaanLand Ota

Ogun State

2. Prof C. N. Onyenweaku

Department of Agricultural Economics

Michael Okpara University of Agriculture

Umudike

3. Professor E. N. T. Akobundu

Department of Food Science and Technology

Michael Okpara University of Agriculture

Umudike