H.R.W. Dharmaratne

973 total citations
34 papers, 686 citations indexed

About

H.R.W. Dharmaratne is a scholar working on Plant Science, Pharmacology and Molecular Biology. According to data from OpenAlex, H.R.W. Dharmaratne has authored 34 papers receiving a total of 686 indexed citations (citations by other indexed papers that have themselves been cited), including 16 papers in Plant Science, 15 papers in Pharmacology and 14 papers in Molecular Biology. Recurrent topics in H.R.W. Dharmaratne's work include Natural Compound Pharmacology Studies (12 papers), Phytochemistry and Biological Activities (7 papers) and Synthesis of Organic Compounds (7 papers). H.R.W. Dharmaratne is often cited by papers focused on Natural Compound Pharmacology Studies (12 papers), Phytochemistry and Biological Activities (7 papers) and Synthesis of Organic Compounds (7 papers). H.R.W. Dharmaratne collaborates with scholars based in Sri Lanka, United States and Canada. H.R.W. Dharmaratne's co-authors include Yoshikazu Sakagami, M. Iinuma, N. P. Dhammika Nanayakkara, Ikhlas A. Khan, Vasanthi Thevanesam, Mayuri Napagoda, Johannes Reisch, Gayathri K. Balasuriya, Eliahu Caspi and Cedric Shackleton and has published in prestigious journals such as The Journal of Organic Chemistry, Journal of Chromatography A and Journal of Ethnopharmacology.

In The Last Decade

H.R.W. Dharmaratne

31 papers receiving 631 citations

Peers

Countries citing papers authored by H.R.W. Dharmaratne

Since Specialization

Citations

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

Fields of papers citing papers by H.R.W. Dharmaratne

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by H.R.W. Dharmaratne. 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 H.R.W. Dharmaratne. The network helps show where H.R.W. Dharmaratne may publish in the future.

Co-authorship network of co-authors of H.R.W. Dharmaratne

This figure shows the co-authorship network connecting the top 25 collaborators of H.R.W. Dharmaratne. A scholar is included among the top collaborators of H.R.W. Dharmaratne 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 H.R.W. Dharmaratne. H.R.W. Dharmaratne 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

#	Work	Indexed citations
1	Antibacterial activity of xanthones fromGarcinia mangostana(L.) and their structure–activity relationship studies 2012 ·Natural Product Research ·H.R.W. Dharmaratne, Yoshikazu Sakagami, (unknown), Vasanthi Thevanesam	61
2	Allelopathic activity studies ofMikania scandens 2012 ·Natural Product Research ·(unknown), H.R.W. Dharmaratne	4
3	Xanthones from roots ofCalophyllum thwaitesiiand their bioactivity 2009 ·Natural Product Research ·H.R.W. Dharmaratne, Mayuri Napagoda, (unknown)	34
4	A Geranylated biphenyl derivative from Garcinia mangostana 2004 ·Natural Product Research ·H.R.W. Dharmaratne, (unknown), (unknown)	17
5	Antibacterial activity of α-mangostin against vancomycin resistant Enterococci (VRE) and synergism with antibiotics 2004 ·Phytomedicine ·Yoshikazu Sakagami, M. Iinuma, (unknown), H.R.W. Dharmaratne	189
6	Determination of saponins and alkaloids in Caulophyllum thalictroides (blue cohosh) by high‐performance liquid chromatography and evaporative light scattering detection 2003 ·Phytochemical Analysis ·Markus Ganzera, H.R.W. Dharmaratne, N. P. Dhammika Nanayakkara, Ijaz Khan	14
7	Kavalactones from Piper methysticum, and their 13C NMR spectroscopic analyses 2002 ·Phytochemistry ·H.R.W. Dharmaratne, N. P. Dhammika Nanayakkara, Ikhlas A. Khan	100
8	Anxiolytic effects of kava extract and kavalactones in the chick social separation-stress paradigm 2001 ·Psychopharmacology ·(unknown), H.R.W. Dharmaratne, (unknown), (unknown), (unknown), N. P. Dhammika Nanayakkara, Ikhlas A. Khan, Kenneth J. Sufka	40
9	Antimicrobial activity of xanthones from Calophyllum species, against methicillin-resistant Staphylococcus aureus (MRSA) 1999 ·Journal of Ethnopharmacology ·H.R.W. Dharmaratne, (unknown), (unknown)	49
10	Distribution of pyranocoumarins in calophyllum cordato-oblongum 1998 ·Phytochemistry ·H.R.W. Dharmaratne, (unknown), (unknown), (unknown)	13
11	Absolute Stereochemistry of Soulattrolide and Its Analogues 1998 ·The Journal of Organic Chemistry ·(unknown), Athula B. Attygalle, Adam Liwo, Ming‐Hong Hao, Jerrold Meinwald, H.R.W. Dharmaratne, (unknown)	12
12	A trioxygenated diprenylated chromenxanthone from Calophyllum moonii 1997 ·Phytochemistry ·H.R.W. Dharmaratne, (unknown)	9
13	A trioxygenated diprenylated chromenxanthone from Calophyllum Moonii 1997 ·Phytochemistry ·H.R.W. Dharmaratne	3
14	Batukinaxanthone, a New Trioxygenated Diprenylated Chromenxanthone fromCalophyllum Thwaitesii 1996 ·Natural product letters ·H.R.W. Dharmaratne, (unknown), Ananda S. Amarasekara	5
15	Natural product chemistry Part 177:novel synthesis and crystal structure of isorutagravin 1994 ·Journal of Chemical Research Synopses ·H.R.W. Dharmaratne, (unknown), Gerald Henkel, Johannes Reisch	0
16	Estrogen biosynthesis: 2β-hydroxy-19-oxoandrost-4-ene-3,17-dione revisited 1993 ·Journal of the Chemical Society Perkin Transactions 1 ·Eliahu Caspi, H.R.W. Dharmaratne, Esther Roitman, Cedric Shackleton	6
17	Biosynthesis of estrogens by microsomal placental aromatase; isolation and metabolism of 10β-hydroxyestr-4-ene-3,17-dione 1989 ·Journal of the Chemical Society Chemical Communications ·Eliahu Caspi, H.R.W. Dharmaratne, Cedric Shackleton	6
18	Synthesis of [16, 16, 19-2H3; 19-3H]19-oxo-androst-4-ene-3, 17-dione 1988 ·Journal of Chromatography A ·Vincent C.O. Njar, H.R.W. Dharmaratne, Eliahu Caspi	1
19	Steric effects in the diastereoselective reduction of β-ketosulfones 1988 ·Canadian Journal of Chemistry ·J. Stuart Grossert, H.R.W. Dharmaratne, T. Stanley Cameron, Beverly R. Vincent	6
20	A Convenient Synthesis of the 2-Dimethyl-2H-Chroinene-System 1985 ·Zeitschrift für Naturforschung B ·Johannes Reisch, H.R.W. Dharmaratne	12

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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