Willem H. Koppenol

26.8k total citations · 5 hit papers
213 papers, 21.3k citations indexed

About

Willem H. Koppenol is a scholar working on Physiology, Organic Chemistry and Molecular Biology. According to data from OpenAlex, Willem H. Koppenol has authored 213 papers receiving a total of 21.3k indexed citations (citations by other indexed papers that have themselves been cited), including 67 papers in Physiology, 50 papers in Organic Chemistry and 50 papers in Molecular Biology. Recurrent topics in Willem H. Koppenol's work include Nitric Oxide and Endothelin Effects (62 papers), Free Radicals and Antioxidants (32 papers) and Electron Spin Resonance Studies (32 papers). Willem H. Koppenol is often cited by papers focused on Nitric Oxide and Endothelin Effects (62 papers), Free Radicals and Antioxidants (32 papers) and Electron Spin Resonance Studies (32 papers). Willem H. Koppenol collaborates with scholars based in Switzerland, United States and Germany. Willem H. Koppenol's co-authors include Joseph S. Beckman, Patricia L. Bounds, Chi V. Dang, Thomas Nauser, Reinhard Kissner, James D. Rush, J. A. V. Butler, E. Margoliash, Harry Ischiropoulos and Juan Moreno and has published in prestigious journals such as Nature, Science and Proceedings of the National Academy of Sciences.

In The Last Decade

Willem H. Koppenol

212 papers receiving 20.7k citations

Hit Papers

5 papers align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Nitric oxide, superoxide, and peroxynitrite: the good, the bad, and ugly

1996 4.6k citations Willem H. Koppenol et al. profile →
Otto Warburg's contributions to current concepts of cancer metabolism

2011 2.6k citations Willem H. Koppenol, Patricia L. Bounds et al. profile →
Peroxynitrite, a cloaked oxidant formed by nitric oxide and superoxide

1992 1.1k citations Willem H. Koppenol et al. Chemical Research in Toxicology profile →
Formation and Properties of Peroxynitrite as Studied by Laser Flash Photolysis, High-Pressure Stopped-Flow Technique, and Pulse Radiolysis

1997 516 citations Reinhard Kissner, Thomas Nauser et al. Chemical Research in Toxicology profile →
Standard electrode potentials involving radicals in aqueous solution: inorganic radicals (IUPAC Technical Report)

2015 474 citations Willem H. Koppenol et al. Pure and Applied Chemistry profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Willem H. Koppenol Switzerland	63	7.4k	6.2k	2.7k	2.2k	2.0k	213	21.3k
Garry R. Buettner United States	75	9.5k 1.3×	3.2k 0.5×	1.6k 0.6×	3.6k 1.6×	1.5k 0.8×	286	27.2k
Balaraman Kalyanaraman United States	89	13.4k 1.8×	7.3k 1.2×	3.2k 1.2×	3.0k 1.3×	2.9k 1.4×	349	30.8k
Ronald P. Mason United States	97	12.4k 1.7×	5.6k 0.9×	3.0k 1.1×	5.0k 2.2×	1.3k 0.6×	659	33.3k
Joe M. McCord United States	63	12.8k 1.7×	5.4k 0.9×	1.9k 0.7×	2.5k 1.1×	1.0k 0.5×	149	36.6k
Michael A. Marletta United States	81	9.6k 1.3×	10.1k 1.6×	3.1k 1.2×	1.2k 0.5×	547 0.3×	251	23.7k
David A. Wink United States	101	10.1k 1.4×	14.2k 2.3×	6.6k 2.5×	2.0k 0.9×	2.9k 1.5×	355	35.8k
Marián Valko Slovakia	41	9.2k 1.3×	3.3k 0.5×	1.2k 0.5×	3.5k 1.6×	1.5k 0.7×	166	34.4k
Joy Joseph United States	62	6.7k 0.9×	3.7k 0.6×	1.6k 0.6×	1.2k 0.6×	1.7k 0.9×	147	14.9k
Jay L. Zweíer United States	98	15.3k 2.1×	12.0k 1.9×	3.5k 1.3×	2.2k 1.0×	2.4k 1.2×	554	42.5k
William A. Pryor United States	70	5.5k 0.8×	4.1k 0.7×	2.1k 0.8×	4.5k 2.0×	884 0.4×	269	21.1k

Countries citing papers authored by Willem H. Koppenol

Since Specialization

Citations

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

Fields of papers citing papers by Willem H. Koppenol

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Willem H. Koppenol. 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 Willem H. Koppenol. The network helps show where Willem H. Koppenol may publish in the future.

Co-authorship network of co-authors of Willem H. Koppenol

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

All Works

Sort: Min cites: Since: Top N: Style:

20 of 20 papers shown

Bounds, Patricia L. & Willem H. Koppenol. (2024). Peroxynitrite: A tale of two radicals. SHILAP Revista de lepidopterología. 10. 100038–100038. 7 indexed citations

Nauser, Thomas, Daniel Steinmann, G. Grassi, & Willem H. Koppenol. (2014). Why Selenocysteine Replaces Cysteine in Thioredoxin Reductase: A Radical Hypothesis. Biochemistry. 53(30). 5017–5022. 34 indexed citations

Müller, Christian S. G., Tim Knehans, Dmitri R. Davydov, et al.. (2014). Concurrent Cooperativity and Substrate Inhibition in the Epoxidation of Carbamazepine by Cytochrome P450 3A4 Active Site Mutants Inspired by Molecular Dynamics Simulations. Biochemistry. 54(3). 711–721. 42 indexed citations

Filipović, Miloš R., Jan Lj. Miljković, Thomas Nauser, et al.. (2012). Chemical Characterization of the Smallest S -Nitrosothiol, HSNO; Cellular Cross-talk of H ₂ S and S -Nitrosothiols. Journal of the American Chemical Society. 134(29). 12016–12027. 289 indexed citations

Domazou, Anastasia S., et al.. (2012). Efficient depletion of ascorbate by amino acid and protein radicals under oxidative stress. Free Radical Biology and Medicine. 53(8). 1565–1573. 16 indexed citations

Koppenol, Willem H., Patricia L. Bounds, Thomas Nauser, Reinhard Kissner, & Heinz Rüegger. (2012). Peroxynitrous acid: controversy and consensus surrounding an enigmatic oxidant. Dalton Transactions. 41(45). 13779–13779. 63 indexed citations

Steinmann, Daniel, Thomas Nauser, & Willem H. Koppenol. (2010). Selenium and Sulfur in Exchange Reactions: A Comparative Study. The Journal of Organic Chemistry. 75(19). 6696–6699. 149 indexed citations

Nauser, Thomas, Daniel Steinmann, & Willem H. Koppenol. (2010). Why do proteins use selenocysteine instead of cysteine?. Amino Acids. 42(1). 39–44. 58 indexed citations

Nauser, Thomas, Sindy M. Dockheer, Reinhard Kissner, & Willem H. Koppenol. (2006). Catalysis of Electron Transfer by Selenocysteine. Biochemistry. 45(19). 6038–6043. 81 indexed citations

10.

Koppenol, Willem H., et al.. (2000). The Quantitative Oxidation of Methionine to Methionine Sulfoxide by Peroxynitrite. Archives of Biochemistry and Biophysics. 377(2). 266–272. 50 indexed citations

11.

Nauser, Thomas, et al.. (1999). Direct Observation of Intermediates in the Reaction of Peroxynitrite with Carbon Dioxide. Helvetica Chimica Acta. 82(5). 722–725. 63 indexed citations

12.

Briviba, Karlis, Reinhard Kissner, Willem H. Koppenol, & Helmut Sies. (1998). Kinetic Study of the Reaction of Glutathione Peroxidase with Peroxynitrite. Chemical Research in Toxicology. 11(12). 1398–1401. 88 indexed citations

13.

Sargeson, A. M., et al.. (1997). Names and symbols of transfermium elements (IUPAC Recommendations 1997). Pure and Applied Chemistry. 69(12). 2471–2474. 33 indexed citations

14.

Masumoto, Hiroshi, Reinhard Kissner, Willem H. Koppenol, & Helmut Sies. (1996). Kinetic study of the reaction of ebselen with peroxynitrite. FEBS Letters. 398(2-3). 179–182. 142 indexed citations

15.

Pryor, William A., Rafael Cueto, Willem H. Koppenol, et al.. (1995). A practical method for preparing peroxynitrite solutions of low ionic strength and free of hydrogen peroxide. Free Radical Biology and Medicine. 18(1). 75–83. 180 indexed citations

16.

Koppenol, Willem H., et al.. (1994). . Pure and Applied Chemistry. 66(12). 2419–2421. 19 indexed citations

17.

Koppenol, Willem H., et al.. (1991). The dipole moment of cytochrome c.. Molecular Biology and Evolution. 8(4). 545–58. 44 indexed citations

18.

Rush, James D., Zofia Maskos, & Willem H. Koppenol. (1990). [12] Distinction between hydroxyl radical and ferryl species. Methods in enzymology on CD-ROM/Methods in enzymology. 186. 148–156. 61 indexed citations

19.

Koppenol, Willem H.. (1985). The reaction of ferrous EDTA with hydrogen peroxide: Evidence against hydroxyl radical formation. PubMed. 1(4). 281–285. 75 indexed citations

20.

Butler, J. A. V., et al.. (1977). Mechanism of the reaction of hydrated electrons with ferrocytochrome c. Biochimica et Biophysica Acta (BBA) - Bioenergetics. 459(2). 207–215. 13 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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