Joseph E. Knapp

1.0k total citations
60 papers, 811 citations indexed

About

Joseph E. Knapp is a scholar working on Molecular Biology, Plant Science and Biochemistry. According to data from OpenAlex, Joseph E. Knapp has authored 60 papers receiving a total of 811 indexed citations (citations by other indexed papers that have themselves been cited), including 21 papers in Molecular Biology, 18 papers in Plant Science and 16 papers in Biochemistry. Recurrent topics in Joseph E. Knapp's work include Traditional and Medicinal Uses of Annonaceae (16 papers), Chemical synthesis and alkaloids (10 papers) and Alkaloids: synthesis and pharmacology (6 papers). Joseph E. Knapp is often cited by papers focused on Traditional and Medicinal Uses of Annonaceae (16 papers), Chemical synthesis and alkaloids (10 papers) and Alkaloids: synthesis and pharmacology (6 papers). Joseph E. Knapp collaborates with scholars based in United States, Ghana and Germany. Joseph E. Knapp's co-authors include David J. Slatkin, Paul L. Schiff, D. Dwuma-Badu, P.L. Schiff, Dexi Liu, Mohammed S. Al‐Dosari, Albert N. Tackie, Carlton E. Turner, Mahmoud A. ElSohly and Guisheng Zhang and has published in prestigious journals such as Applied and Environmental Microbiology, Biochemical and Biophysical Research Communications and Cellular and Molecular Life Sciences.

In The Last Decade

Joseph E. Knapp

58 papers receiving 746 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Joseph E. Knapp United States 17 373 186 184 181 146 60 811
J Poisson France 18 364 1.0× 360 1.9× 77 0.4× 147 0.8× 286 2.0× 96 1.0k
Horacio A. Priestap Argentina 19 301 0.8× 108 0.6× 104 0.6× 148 0.8× 254 1.7× 41 830
Hiroshi Araya Japan 19 293 0.8× 137 0.7× 172 0.9× 224 1.2× 111 0.8× 63 872
John P. Christopher United States 12 363 1.0× 118 0.6× 53 0.3× 137 0.8× 88 0.6× 19 859
W.Donald MacRae Canada 17 696 1.9× 195 1.0× 67 0.4× 463 2.6× 90 0.6× 28 1.2k
Hye‐Dong Yoo United States 17 342 0.9× 140 0.8× 153 0.8× 113 0.6× 96 0.7× 25 711
Yuri Aoyama Japan 23 835 2.2× 112 0.6× 268 1.5× 103 0.6× 480 3.3× 44 1.3k
Gerald A. Wächter United States 15 405 1.1× 156 0.8× 87 0.5× 158 0.9× 105 0.7× 24 841
Dorothy S. Genghof United States 15 380 1.0× 204 1.1× 172 0.9× 79 0.4× 94 0.6× 18 725
Chowdhury Faiz Hossain Bangladesh 17 350 0.9× 107 0.6× 212 1.2× 210 1.2× 154 1.1× 36 961

Countries citing papers authored by Joseph E. Knapp

Since Specialization
Citations

This map shows the geographic impact of Joseph E. Knapp'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 Joseph E. Knapp with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Joseph E. Knapp more than expected).

Fields of papers citing papers by Joseph E. Knapp

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Joseph E. Knapp. 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 Joseph E. Knapp. The network helps show where Joseph E. Knapp may publish in the future.

Co-authorship network of co-authors of Joseph E. Knapp

This figure shows the co-authorship network connecting the top 25 collaborators of Joseph E. Knapp. A scholar is included among the top collaborators of Joseph E. Knapp 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 Joseph E. Knapp. Joseph E. Knapp is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Al‐Dosari, Mohammed S., Joseph E. Knapp, & Dexi Liu. (2005). Hydrodynamic Delivery. Advances in genetics. 54. 65–82. 37 indexed citations
2.
Al‐Dosari, Mohammed S., Guisheng Zhang, Joseph E. Knapp, & Dexi Liu. (2005). Evaluation of viral and mammalian promoters for driving transgene expression in mouse liver. Biochemical and Biophysical Research Communications. 339(2). 673–678. 43 indexed citations
3.
Knapp, Joseph E. & Dexi Liu. (2004). Hydrodynamic Delivery of DNA. Humana Press eBooks. 245. 245–250. 21 indexed citations
4.
Kenyon, Norma S., Gennaro Selvaggi, Luis A. Fernandez, et al.. (1997). Infusion of class II DIM donor bone marrow enhances islet allograft survival in low-dose CyA treated dogs. Transplantation Proceedings. 29(4). 2189–2189. 2 indexed citations
5.
El-Fishawy, Ahlam M., David J. Slatkin, Joseph E. Knapp, & P.L. Schiff. (1984). Preparation of 7,8-Dimethoxy-3,4-dihydroisoquinoline, Facile Route to 7,8-Dioxygenated-3,4-dihydroisoquinolines. Journal of Pharmaceutical Sciences. 73(11). 1639–1640.
6.
Ateya, Abdel-Monem, et al.. (1982). Flavonoids of Thelesperma megapotanicum. Planta Medica. 45(8). 247–248. 3 indexed citations
7.
Knapp, Joseph E., et al.. (1981). Constituents of West African Medicinal Plants. Planta Medica. 42(7). 275–278. 27 indexed citations
8.
Slatkin, David J., et al.. (1981). Constituents of West African Medicinal Plants. XXVIII. Additional Alkaloids of Triclisia gilletti. Journal of Natural Products. 44(1). 61–66. 9 indexed citations
9.
Tackie, Albert N., et al.. (1980). Isolation of funiferine dimethiodide and oblongine from Tiliacora funifera. Phytochemistry. 19(8). 1882–1883. 9 indexed citations
10.
Svoboda, Gordon H., et al.. (1979). Chemical Constituents of Echites hirsuta (Apocynaceae). Journal of Pharmaceutical Sciences. 68(2). 247–249. 10 indexed citations
11.
ElSohly, Mahmoud A., Carlton E. Turner, Charles H. Phoebe, et al.. (1978). Anhydrocannabisativine, a New Alkaloid from Cannabis sativa L.. Journal of Pharmaceutical Sciences. 67(1). 124–124. 33 indexed citations
12.
Schiff, Paul L., et al.. (1978). Gilletine, a New Bisbenzylisoquinoline Alkaloid from Triclisia gilletii. Heterocycles. 9(8). 995–995. 1 indexed citations
13.
Dwuma-Badu, D., Albert N. Tackie, José A. López, et al.. (1977). Constituents of West African Medicinal Plants XIX: Funiferine N-Oxide, a New Alkaloid from Tiliacora funifera (Menispermaceae). Journal of Pharmaceutical Sciences. 66(9). 1242–1244. 9 indexed citations
14.
ElSohly, Mahmoud A., Joseph E. Knapp, Paul L. Schiff, & David J. Slatkin. (1976). Chemical constituents of fruit of Cocculus carolinus D. C. (menispermaceae). Journal of Pharmaceutical Sciences. 65(1). 132–133. 4 indexed citations
15.
Dwuma-Badu, D., et al.. (1975). Alkaloids of Cissampelos pareira. Phytochemistry. 14(11). 2520–2521. 29 indexed citations
16.
Tackie, Albert N., D. Dwuma-Badu, Hala N. ElSohly, et al.. (1975). N-Isobutyloctadeca-trans-2-trans-4-dienamide: A new constituent of Piper guineense. Phytochemistry. 14(8). 1888–1889. 11 indexed citations
17.
Tackie, Albert N., et al.. (1974). Tiliageine: A newbisbenzylisoquinoline biphenyl alkaloid fromTiliacora dinklagei. Cellular and Molecular Life Sciences. 30(8). 847–848. 12 indexed citations
18.
ElSohly, Mahmoud A., Joseph E. Knapp, David J. Slatkin, et al.. (1974). Euparone, a New Benzofuran from Ruscus Aculeatus L.. Journal of Pharmaceutical Sciences. 63(10). 1623–1624. 20 indexed citations
19.
Tackie, Albert N., D. Dwuma-Badu, Joseph E. Knapp, & P.L. Schiff. (1973). Nortiliacorinine-A and nortiliacorine-A from Tiliacora funifera. Phytochemistry. 12(1). 203–205. 9 indexed citations
20.
Knapp, Joseph E.. (1969). The isolation and chemical characterization of alkaloids from Menispermum canadense, L. /. OhioLink ETD Center (Ohio Library and Information Network). 1 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.

Explore authors with similar magnitude of impact

Breakdown of academic impact, for papers by J Poisson Breakdown of academic impact, for papers by Horacio A. Priestap Breakdown of academic impact, for papers by Hiroshi Araya Breakdown of academic impact, for papers by John P. Christopher Breakdown of academic impact, for papers by W.Donald MacRae Breakdown of academic impact, for papers by Hye‐Dong Yoo Breakdown of academic impact, for papers by Yuri Aoyama Breakdown of academic impact, for papers by Gerald A. Wächter Breakdown of academic impact, for papers by Dorothy S. Genghof Breakdown of academic impact, for papers by Chowdhury Faiz Hossain
Rankless by CCL
2026