James Oppong‐Kyekyeku

Kwame Nkrumah University of Science and Technology

Publishing since 2013, latest 2026

Molecular Biology
Plant Science
Analytical Chemistry
Complementary and alternative medicine
Food Science
Pharmacology

In their own words

Natural Product Chemistry

Publications: 302013–2026
Citations: 343to those papers
h-index: 10i10-index 10
Field-weighted impact: 0.741.00 is the world average
World top 10%: 7%2 of 27 scored papers
Open access: 78%21 of the 27 whose access is recorded

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

Google Scholar shows 526 citations, h-index 13 and i10-index 15 (354 citations and h-index 11 since 2021), as of October 10, 2026. It also counts theses, books and web pages, so it runs higher.

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

30 in all

Forced degradation kinetics of levonorgestrel-based emergency contraceptives on the Ghanaian market using a new developed and validated HPLC-UV method
2026Discover Chemistry.JournalOpen access0 citations10.1007/s44371-026-00568-x
Rising tide of antibiotics and antibiotic resistance: insights from urban environments and hospital effluents in Accra, Ghana
2026

What they work on

From the classification of each paper

Subfields

Molecular Biology1137%
Plant Science723%
Analytical Chemistry413%
Complementary and alternative medicine413%
Food Science413%
Pharmacology413%
Biochemistry310%
Public Health, Environmental and Occupational Health310%
Spectroscopy310%
Biochemistry27%

Health Sciences
Life Sciences
Physical Sciences

Topics most written on

Analytical Methods in Pharmaceuticals4
Phytochemistry and Biological Activities4
Analytical Chemistry and Chromatography3
Essential Oils and Antimicrobial Activity3
Natural product bioactivities and synthesis3
Pharmaceutical Quality and Counterfeiting3
Traditional and Medicinal Uses of Annonaceae3
Bioactive Compounds and Antitumor Agents2
Inflammatory Bowel Disease2
Phytochemicals and Antioxidant Activities2
Phytochemistry and Bioactive Compounds2
Adipokines, Inflammation, and Metabolic Diseases1

Who they write with

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

Where their co-authors are

15% of their 27 papers with recorded affiliations have a co-author abroad

papers co-written1111222Home

Most frequent partner countries

Germany2
Austria1
Nigeria1
United Kingdom1

Papers with at least one author in that country.

Institutions written with most

University of Health and Allied SciencesGH6 papers
University of Cape CoastGH6 papers
TU Dortmund UniversityDE2 papers
University of GhanaGH2 papers
Liverpool School of Tropical MedicineGB1 paper
University of ViennaAT1 paper
University of IbadanNG1 paper
University for Development StudiesGH1 paper
Ghana Health ServiceGH1 paper
University College Hospital, IbadanNG1 paper

Where they publish

Journal of Chemistry4
Journal of Pharmaceutical Research International3
Fitoterapia2
International Journal of Analytical Chemistry2
Journal Of Tropical Pharmacy And Chemistry2
Discover Chemistry.1

Development goals addressed

From each paper’s title and abstract

3Good health and well-being4
6Clean water and sanitation4
15Life on land2
17Partnerships for the goals2
1No poverty1
2Zero hunger1

Most cited

Antibacterial secondary metabolites from an endophytic fungus, Fusarium solani JK10
Fitoterapia15
201754 citationsWorld top 10%
Resistance Modulation Action, Time-Kill Kinetics Assay, and Inhibition of Biofilm Formation Effects of Plumbagin from Plumbago zeylanica Linn
Journal of Tropical Medicine3
201950 citationsOpen access · Gold
Anti-allodynic and Anti-hyperalgesic effects of an ethanolic extract and xylopic acid from the fruits of Xylopia aethiopica in murine models of neuropathic pain

How it can be read

78% free to read, of the 27 recorded

Diamond 10 · 33%Free to read and to publish
Gold 9 · 30%In an open-access journal
Hybrid 1 · 3%Open in a subscription journal
Bronze 1 · 3%Free to read, no open licence
Closed 6 · 20%Behind a paywall
Unknown 3 · 10%Not recorded by the source

Who funds it

14 of 30 papers name a funder

Kwame Nkrumah University of Science and Technology11
Deutsche Forschungsgemeinschaft1
Deutscher Akademischer Austauschdienst1
Government of the United Kingdom1
Ministerium für Innovation, Wissenschaft und Forschung des Landes Nordrhein-Westfalen1
National Institute for Health and Care Research1
Noguchi Memorial Institute for Medical Research, University of Ghana1
University of Health and Allied Sciences1