Steph̀en A. Ampofo

921 total citations
17 papers, 762 citations indexed

About

Steph̀en A. Ampofo is a scholar working on Molecular Biology, Organic Chemistry and Pharmacology. According to data from OpenAlex, Steph̀en A. Ampofo has authored 17 papers receiving a total of 762 indexed citations (citations by other indexed papers that have themselves been cited), including 10 papers in Molecular Biology, 5 papers in Organic Chemistry and 5 papers in Pharmacology. Recurrent topics in Steph̀en A. Ampofo's work include Glycosylation and Glycoproteins Research (4 papers), Synthesis of Organic Compounds (4 papers) and Proteoglycans and glycosaminoglycans research (4 papers). Steph̀en A. Ampofo is often cited by papers focused on Glycosylation and Glycoproteins Research (4 papers), Synthesis of Organic Compounds (4 papers) and Proteoglycans and glycosaminoglycans research (4 papers). Steph̀en A. Ampofo collaborates with scholars based in United States and United Kingdom. Steph̀en A. Ampofo's co-authors include Robert J. Linhardt, Peter G. Waterman, Vassilios Roussis, David F. Wiemer, Jonathan S. Dordick, Brett D. Martin, Umesh R. Desai, David S. Newburg, Robert H. Yolken and Debra Hoppensteadt and has published in prestigious journals such as Biochemistry, Macromolecules and Analytical Biochemistry.

In The Last Decade

Steph̀en A. Ampofo

17 papers receiving 735 citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
Steph̀en A. Ampofo United States	14	394	220	135	109	77	17	762
Monica Lindh Sweden	8	519 1.3×	86 0.4×	51 0.4×	37 0.3×	31 0.4×	9	997
Kou‐Cheng Peng Taiwan	19	410 1.0×	95 0.4×	313 2.3×	52 0.5×	92 1.2×	36	889
R. Bode Germany	15	556 1.4×	42 0.2×	133 1.0×	26 0.2×	104 1.4×	86	754
Chantal Finance France	13	401 1.0×	57 0.3×	134 1.0×	240 2.2×	52 0.7×	17	790
N Simonetti Italy	14	328 0.8×	56 0.3×	143 1.1×	223 2.0×	40 0.5×	84	952
D. E. Mahony Canada	22	502 1.3×	176 0.8×	35 0.3×	76 0.7×	32 0.4×	53	1.4k
Jiyang Li China	15	302 0.8×	50 0.2×	103 0.8×	49 0.4×	82 1.1×	46	774
Yasuji Suhara Japan	16	335 0.9×	43 0.2×	101 0.7×	247 2.3×	19 0.2×	33	869
Herman C. Lichstein United States	18	529 1.3×	399 1.8×	39 0.3×	150 1.4×	32 0.4×	80	937
Md. Sohail Akhtar India	18	853 2.2×	78 0.4×	105 0.8×	55 0.5×	37 0.5×	50	1.2k

Countries citing papers authored by Steph̀en A. Ampofo

Since Specialization

Citations

This map shows the geographic impact of Steph̀en A. Ampofo's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Steph̀en A. Ampofo with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Steph̀en A. Ampofo more than expected).

Fields of papers citing papers by Steph̀en A. Ampofo

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Steph̀en A. Ampofo. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Steph̀en A. Ampofo. The network helps show where Steph̀en A. Ampofo may publish in the future.

Co-authorship network of co-authors of Steph̀en A. Ampofo

This figure shows the co-authorship network connecting the top 25 collaborators of Steph̀en A. Ampofo. A scholar is included among the top collaborators of Steph̀en A. Ampofo based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Steph̀en A. Ampofo. Steph̀en A. Ampofo is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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17 of 17 papers shown

Derrick, Tiffany, Steph̀en A. Ampofo, & Bríd Devlin. (2014). Characterization of a Dapivirine Impurity Found in Dapivirine Gel Product During Storage. AIDS Research and Human Retroviruses. 30(S1). A155–A156. 1 indexed citations

Boyd, Peter D. W., et al.. (2012). A silicone elastomer vaginal ring for HIV prevention containing two microbicides with different mechanisms of action. European Journal of Pharmaceutical Sciences. 48(3). 406–415. 71 indexed citations

Newburg, David S., Robert J. Linhardt, Steph̀en A. Ampofo, & Robert H. Yolken. (1995). Human Milk Glycosaminoglycans Inhibit HIV Glycoprotein gp120 Binding to its Host Cell CD4 Receptor. Journal of Nutrition. 125(3). 419–424. 71 indexed citations

Desai, Umesh R., et al.. (1993). Oligosaccharide Composition of Heparin and Low-Molecular-Weight Heparins by Capillary Electrophoresis. Analytical Biochemistry. 213(1). 120–127. 77 indexed citations

Linhardt, Robert J., Steph̀en A. Ampofo, Jawed Fareed, et al.. (1992). Isolation and characterization of human heparin. Biochemistry. 31(49). 12441–12445. 73 indexed citations

Martin, Brett D., Steph̀en A. Ampofo, Robert J. Linhardt, & Jonathan S. Dordick. (1992). Biocatalytic synthesis of sugar-containing polyacrylate-based hydrogels. Macromolecules. 25(26). 7081–7085. 87 indexed citations

Linhardt, Robert J., et al.. (1992). New Methodologies in Heparin Structure Analysis and the Generation of LMW Heparins. Advances in experimental medicine and biology. 313. 37–47. 18 indexed citations

Ampofo, Steph̀en A., et al.. (1991). Disaccharide compositional analysis of heparin and heparan sulfate using capillary zone electrophoresis. Analytical Biochemistry. 199(2). 249–255. 110 indexed citations

Roussis, Vassilios, Steph̀en A. Ampofo, & David F. Wiemer. (1990). A prenylated benzoic acid derivative from the leaves of Piper taboganum. Phytochemistry. 29(6). 1787–1788. 24 indexed citations

10.

Ampofo, Steph̀en A., Vassilios Roussis, & David F. Wiemer. (1987). New prenylated phenolics from Piper auritum. Phytochemistry. 26(8). 2367–2370. 47 indexed citations

11.

Roussis, Vassilios, Steph̀en A. Ampofo, & David F. Wiemer. (1987). Flavanones from Lonchocarpus minimiflorus. Phytochemistry. 26(8). 2371–2375. 37 indexed citations

12.

Ampofo, Steph̀en A. & Peter G. Waterman. (1986). Xanthones and neoflavonoids from two asian species of calophyllum. Phytochemistry. 25(11). 2617–2620. 27 indexed citations

13.

Ampofo, Steph̀en A. & Peter G. Waterman. (1986). Xanthones from three Garcinia species. Phytochemistry. 25(10). 2351–2355. 54 indexed citations

14.

Ampofo, Steph̀en A. & Peter G. Waterman. (1985). Aurantiamide Acetate, Quassinoids, and a Canthinone from the Stem Bark of Pierreodendron kerstingii. Journal of Natural Products. 48(5). 863–864. 2 indexed citations

15.

Waterman, Peter G. & Steph̀en A. Ampofo. (1985). Dammarane Triterpenes from the stem bark of Commiphora Dalzielii. Phytochemistry. 24(12). 2925–2928. 44 indexed citations

16.

Waterman, Peter G. & Steph̀en A. Ampofo. (1984). Cytotoxic Quassinoids fromOdyendyea gabonensisStem Bark: Isolation and High-Field NMR. Planta Medica. 50(3). 261–263. 17 indexed citations

17.

Dwuma-Badu, D., et al.. (1979). Constituents of West African Medicinal Plants. XXIII. The Position of the Phenolic Function in Dinklacorine--A Confirmation of Structure. Journal of Natural Products. 42(1). 116–119. 2 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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