Karl Malcolm

4.0k total citations
133 papers, 3.2k citations indexed

About

Karl Malcolm is a scholar working on Microbiology, Infectious Diseases and Virology. According to data from OpenAlex, Karl Malcolm has authored 133 papers receiving a total of 3.2k indexed citations (citations by other indexed papers that have themselves been cited), including 58 papers in Microbiology, 55 papers in Infectious Diseases and 31 papers in Virology. Recurrent topics in Karl Malcolm's work include Reproductive tract infections research (57 papers), HIV/AIDS Research and Interventions (54 papers) and HIV Research and Treatment (31 papers). Karl Malcolm is often cited by papers focused on Reproductive tract infections research (57 papers), HIV/AIDS Research and Interventions (54 papers) and HIV Research and Treatment (31 papers). Karl Malcolm collaborates with scholars based in United Kingdom, United States and France. Karl Malcolm's co-authors include A. David Woolfson, Clare F. McCoy, Peter D. W. Boyd, Ryan J. Morrow, Stephen D. McCullagh, Diarmaid J. Murphy, Julie A. Russell, Joseph Romano, Gavin P. Andrews and David Woolfson and has published in prestigious journals such as Science, SHILAP Revista de lepidopterología and PLoS ONE.

In The Last Decade

Karl Malcolm

128 papers receiving 3.1k citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Karl Malcolm United Kingdom	35	1.2k	1.1k	641	600	430	133	3.2k
Patrick F. Kiser United States	33	854 0.7×	1.1k 1.0×	620 1.0×	423 0.7×	503 1.2×	86	3.5k
Lisa C. Rohan United States	37	1.3k 1.1×	1.5k 1.4×	1.1k 1.7×	651 1.1×	804 1.9×	135	4.0k
David R. Friend United States	35	716 0.6×	773 0.7×	397 0.6×	1.3k 2.1×	489 1.1×	114	3.5k
Kevin J. Whaley United States	37	1.1k 1.0×	1.2k 1.1×	365 0.6×	449 0.7×	1.1k 2.6×	103	5.1k
Gustavo F. Doncel United States	39	1.7k 1.4×	1.3k 1.2×	863 1.3×	215 0.4×	998 2.3×	193	5.1k
Meredith R. Clark United States	23	512 0.4×	632 0.6×	279 0.4×	234 0.4×	322 0.7×	61	1.4k
Thomas R. Moench United States	46	2.6k 2.2×	1.5k 1.4×	794 1.2×	457 0.8×	2.3k 5.3×	96	6.8k
Guido Vanham Belgium	30	504 0.4×	1.1k 1.0×	1.2k 1.8×	124 0.2×	546 1.3×	86	3.1k
Derek H. Owen United States	15	487 0.4×	315 0.3×	176 0.3×	378 0.6×	220 0.5×	22	1.6k
Daniel Malamud United States	45	748 0.6×	924 0.9×	600 0.9×	109 0.2×	884 2.1×	153	6.1k

Countries citing papers authored by Karl Malcolm

Since Specialization

Citations

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

Fields of papers citing papers by Karl Malcolm

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Karl Malcolm. 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 Karl Malcolm. The network helps show where Karl Malcolm may publish in the future.

Co-authorship network of co-authors of Karl Malcolm

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

All Works

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20 of 20 papers shown

McCoy, Clare F., Heather E. Barry, Peter D. W. Boyd, & Karl Malcolm. (2025). Discolouration of vaginal devices during clinical use: a narrative review of the scientific literature and a thematic analysis of Reddit posts. Research Portal (Queen's University Belfast). 3(1).

Herrera, Carolina, Mackenzie L. Cottrell, Angela D. M. Kashuba, et al.. (2022). The ex vivo pharmacology of HIV-1 antiretrovirals differs between macaques and humans. iScience. 25(6). 104409–104409. 3 indexed citations

Carson, Louise, Ruth Merkatz, Elena Martinelli, et al.. (2021). The Vaginal Microbiota, Bacterial Biofilms and Polymeric Drug-Releasing Vaginal Rings. Pharmaceutics. 13(5). 751–751. 26 indexed citations

Murphy, Diarmaid J., Ryan T. Armstrong, Clare F. McCoy, et al.. (2021). Refining the in vitro release test method for a dapivirine-releasing vaginal ring to match in vivo performance. Drug Delivery and Translational Research. 13(8). 2072–2082. 2 indexed citations

Murphy, Diarmaid J., Clare F. McCoy, Peter D. W. Boyd, et al.. (2019). Drug stability and product performance characteristics of a dapivirine-releasing vaginal ring under simulated real-world conditions. International Journal of Pharmaceutics. 565. 351–357. 12 indexed citations

McBride, J.W., Peter D. W. Boyd, David Cameron, et al.. (2019). Vaginal rings with exposed cores for sustained delivery of the HIV CCR5 inhibitor 5P12-RANTES. Journal of Controlled Release. 298. 1–11. 37 indexed citations

Murphy, Diarmaid J., Clare F. McCoy, Marlena Plagianos, et al.. (2019). Post-use ring weight and residual drug content as potential objective measures of user adherence to a contraceptive progesterone vaginal ring. Contraception. 100(3). 241–246. 10 indexed citations

Holt, Jonathon, et al.. (2014). Matrix Vaginal Ring Formulations that Maintain Target In Vitro Release Rates of Dapivirine and Levonorgestrel (Alone or in Combination) over 90 Days. AIDS Research and Human Retroviruses. 30(S1). A138–A139. 4 indexed citations

McCoy, Clare F., Peter D. W. Boyd, Ian Major, et al.. (2014). Development of Reservoir Vaginal Rings Containing Dapivirine or Hormonal Contraceptive Steroids. AIDS Research and Human Retroviruses. 30(S1). A68–A68. 1 indexed citations

10.

McCoy, Clare F., Diarmaid J. Murphy, Peter D. W. Boyd, et al.. (2014). Formulation Development of a Combination Silicone Elastomer Ring for Vaginal Delivery of Dapivirine and Levonorgestrel. AIDS Research and Human Retroviruses. 30(S1). A138–A138. 2 indexed citations

11.

Malcolm, Karl, Diarmaid J. Murphy, Clare F. McCoy, et al.. (2014). Evaluation of the Factors Contributing to Levonorgestrel Binding in Addition Cure Silicone Elastomer Vaginal Rings. AIDS Research and Human Retroviruses. 30(S1). A139–A139. 1 indexed citations

12.

McCoy, Clare F., Peter D. W. Boyd, Ian Major, et al.. (2014). Selection of a Hormonal Contraceptive Agent for Inclusion with Dapivirine in a Silicone Elastomer Vaginal Ring. AIDS Research and Human Retroviruses. 30(S1). A140–A140. 1 indexed citations

13.

Malcolm, Karl, Clare F. McCoy, Diarmaid J. Murphy, et al.. (2014). Thermal Properties and Eutectic Behaviour of Dapivirine in Combination with Steroid Hormones and Other Antiretrovirals. AIDS Research and Human Retroviruses. 30(S1). A140–A140. 2 indexed citations

14.

Malcolm, Karl, et al.. (2012). Vaginal rings for delivery of HIV microbicides. International Journal of Women s Health. 4. 595–595. 72 indexed citations

15.

Major, Ian, et al.. (2012). A modified SILCS contraceptive diaphragm for long-term controlled release of the HIV microbicide dapivirine. Contraception. 88(1). 58–66. 33 indexed citations

16.

Gorlani, Andrea, Joachim Brouwers, Christopher McConville, et al.. (2011). Llama Antibody Fragments Have Good Potential for Application as HIV Type 1 Topical Microbicides. AIDS Research and Human Retroviruses. 28(2). 198–205. 26 indexed citations

17.

Umrethia, Manish, Victoria Kett, Gavin P. Andrews, Karl Malcolm, & A. David Woolfson. (2009). Selection of an analytical method for evaluating bovine serum albumin concentrations in pharmaceutical polymeric formulations. Journal of Pharmaceutical and Biomedical Analysis. 51(5). 1175–1179. 34 indexed citations

18.

Malcolm, Karl, et al.. (2005). Long-term, controlled release of the HIV microbicide TMC120 from silicone elastomer vaginal rings. Journal of Antimicrobial Chemotherapy. 56(5). 954–956. 136 indexed citations

19.

Malcolm, Karl, David Woolfson, Julie A. Russell, & Chris Andrews. (2003). In vitro release of nonoxynol-9 from silicone matrix intravaginal rings. Journal of Controlled Release. 91(3). 355–364. 44 indexed citations

20.

Russell, Julie A., Karl Malcolm, Katrina Campbell, & A. David Woolfson. (2000). High-performance liquid chromatographic determination of 17 beta-estradiol and 17 beta-estradiol-3-acetate solubilities and diffusion coefficients in silicone elastomeric intravaginal rings. Journal of Chromatography B. 744. 157–163. 28 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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