Petra Obioma Nnamani

University of Nigeria

Publishing since 2003, latest 2026

Pharmaceutical Science
Food Science
Molecular Biology
Plant Science
Public Health, Environmental and Occupational Health
Pharmacology

Publications: 592003–2026
Citations: 1,509to those papers
h-index: 19i10-index 25
Field-weighted impact: 2.151.00 is the world average
World top 10%: 22%13 of 59 scored papers
Open access: 73%43 papers free to read

6 other works — preprints, datasets and the like — are listed but not counted.

By year

Papers, and the citations to them

Publications, left axisCitations to that year’s papers, right axis2026 still in progress

Career

On their papers

Every institution they have given on a paper.

Publications

59 in all

Evaluation of anti-diarrhoeal action of a hot-water infusion of ocimum gratissimum, linn
2009Bio Research Journal/Bio- ResearchJournalOpen accessSenior author1 citation10.4314/br.v7i1.45464
Studies on the Charge-Transfer Interaction Between Tamoxifen Citrate and Chloranilic Acid
2007Iranian journal of pharmaceutical sciences

Download CV:PDFWord

Citations received each year

Peerford

To all their work, old papers included. Google Scholar also counts citations from theses, books and web pages, so its line runs higher.

What they work on

From the classification of each paper

Subfields

Pharmaceutical Science2949%
Food Science1424%
Molecular Biology1220%
Plant Science712%
Public Health, Environmental and Occupational Health712%
Pharmacology610%
Biomaterials58%
Infectious Diseases58%
Spectroscopy58%
Insect Science47%

Health Sciences
Life Sciences
Physical Sciences

Topics most written on

Advanced Drug Delivery Systems19
Advancements in Transdermal Drug Delivery18
Lipid Membrane Structure and Behavior9
Drug Solubulity and Delivery Systems8
Essential Oils and Antimicrobial Activity7
Analytical Chemistry and Chromatography5
Polysaccharides Composition and Applications5
Ocular Surface and Contact Lens4
African Botany and Ecology Studies3
Bee Products Chemical Analysis3
Hibiscus Plant Research Studies3
Malaria Research and Control3

Who they write with

Their most frequent co-authors, and the papers those co-authors share

Where their co-authors are

46% of their papers have a co-author abroad

papers co-written12345710Home

Most frequent partner countries

Germany10
United Kingdom7
India5
Italy4
South Africa3
Brazil2
United States1

Papers with at least one author in that country.

Institutions written with most

Nnamdi Azikiwe UniversityNG9 papers
Helmholtz Institute for Pharmaceutical Research SaarlandDE8 papers
Enugu State University of Science and TechnologyNG8 papers
Saarland UniversityDE6 papers
Helmholtz Centre for Infection ResearchDE4 papers
AREA Science ParkIT3 papers
Bharati Vidyapeeth College of Pharmacy, KolhapurIN3 papers
Tshwane University of TechnologyZA3 papers
University of ReadingGB2 papers
Technische Universität BraunschweigDE2 papers

Where they publish

Bio Research Journal/Bio- Research4
Elsevier eBooks3
European Journal of Pharmaceutics and Biopharmaceutics3
Tropical Journal of Pharmaceutical Research3
Asian Pacific Journal of Tropical Medicine2
Dhaka University Journal of Pharmaceutical Sciences2

Development goals addressed

From each paper’s title and abstract

3Good health and well-being21
6Clean water and sanitation9
2Zero hunger3
7Affordable and clean energy3
9Industry, innovation and infrastructure1
17Partnerships for the goals1

Most cited

Nanotechnology based drug delivery systems for the treatment of anterior segment eye diseases
Journal of Controlled Release3
2023348 citationsWorld top 10%Open access · Hybrid
Nanogels as target drug delivery systems in cancer therapy: A review of the last decade
Frontiers in Pharmacology3
2022123 citationsWorld top 10%Open access · Gold

Some physiological and toxicological properties of snail mucin extracted from Archachatina marginata

2006Bio Research Journal/Bio- ResearchJournalOpen accessSenior author8 citations10.4314/br.v3i2.28580

Evaluation of snail mucin as bioadhesive agent for the delivery of chlorpropamide

2006Bio Research Journal/Bio- ResearchJournalOpen access4 citations10.4314/br.v3i2.28599

The mechanism of diclofenac sodium release from non-disintegrating bioadhesive tablets

2005Journal of Pharmaceutical and Allied SciencesJournalSenior author0 citations10.4314/jophas.v2i2.34978

Studies on Diclofenac -β- Cyclodextrin Inclusion Complexes

2004Journal of Pharmaceutical ResearchJournalOpen accessSenior author6 citations10.18579/jpcrkc/2004/3/3/79682

European Journal of Nanomedicine2

How it can be read

73% free to read

Diamond 15 · 25%Free to read and to publish
Gold 14 · 24%In an open-access journal
Hybrid 6 · 10%Open in a subscription journal
Bronze 4 · 7%Free to read, no open licence
Green 4 · 7%A copy in a repository
Closed 16 · 27%Behind a paywall

Who funds it

13 of 59 papers name a funder

Alexander von Humboldt-Stiftung5
Tertiary Education Trust Fund3
University Of Nigeria Nsukka3
Bundesministerium für Bildung und Forschung2
Government of Canada2
Grand Challenges Canada2
African-German Network of Excellence in Science1
Bayer Foundation1

Sexual and reproductive health services (SRHS) for adolescents in Enugu state, Nigeria: a mixed methods approach

BMC Health Services Research3

2018114 citationsWorld top 10%Open access · Gold

The use of solid self-emulsifying systems in the delivery of diclofenac

International Journal of Pharmaceutics

200389 citationsWorld top 10%