Helder M. Marques
- Molecular Biology top 5%
- Materials Chemistry top 2%
- Inorganic Chemistry top 1%
- Organic Chemistry top 2%
- Physical and Theoretical Chemistry top 0.5%
- Co-authors
- Pradeep R. VaradwajArpita VaradwajTimothy J. EganKenneth L. BrownOrde Q. MunroKoichi YamashitaDavid A. BaldwinJohn M. Pratt
- Topics
- Porphyrin Metabolism and Disorders (61 papers)Porphyrin and Phthalocyanine Chemistry (47 papers)Folate and B Vitamins Research (38 papers)
- Journals
- Journal of the American Chemical SocietyJournal of Biological ChemistryThe Journal of Physical Chemistry B
- Partner nations
- South AfricaJapanUnited States
In The Last Decade
Helder M. Marques
171 papers receiving 4.9k citations
Peers
Comparison fields: 5 of 117
- Molecular Biology 2.1k
- Materials Chemistry 1.8k
- Inorganic Chemistry 1.2k
- Organic Chemistry 835
- Physical and Theoretical Chemistry 735
Countries citing papers authored by Helder M. Marques
This map shows the geographic impact of Helder M. Marques'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 Helder M. Marques with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Helder M. Marques more than expected).
Fields of papers citing papers by Helder M. Marques
This network shows the impact of papers produced by Helder M. Marques. 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 Helder M. Marques. The network helps show where Helder M. Marques may publish in the future.
Co-authorship network of co-authors of Helder M. Marques
This figure shows the co-authorship network connecting the top 25 collaborators of Helder M. Marques. A scholar is included among the top collaborators of Helder M. Marques 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 Helder M. Marques. Helder M. Marques is excluded from the visualization to improve readability, since they are connected to all nodes in the network.
All Works
| # | Work | Indexed citations |
|---|---|---|
| 1 | 15 | |
| 2 | 5 | |
| 3 | 7 | |
| 4 | 14 | |
| 5 | 4 | |
| 6 | 57 | |
| 7 | 24 | |
| 8 | 29 | |
| 9 | 28 | |
| 10 | 19 | |
| 11 | 9 | |
| 12 | 25 | |
| 13 | 122 | |
| 14 | 17 | |
| 15 | 38 | |
| 16 | 137 | |
| 17 | 3 | |
| 18 | 32 | |
| 19 | 24 | |
| 20 | Fifty years of X-ray crystallography of vitamin B12 and its derivatives | 7 |
About Helder M. Marques
Helder M. Marques is a scholar working on Inorganic Chemistry, Physical and Theoretical Chemistry and Rheumatology, having authored 176 papers that have together received 5.1k indexed citations. Recurring topics across this work include Porphyrin Metabolism and Disorders (61 papers), Porphyrin and Phthalocyanine Chemistry (47 papers) and Folate and B Vitamins Research (38 papers). The work is most often cited by research in Inorganic Chemistry (1.2k citations), Physical and Theoretical Chemistry (735 citations) and Rheumatology (712 citations). Helder M. Marques has collaborated with scholars based in South Africa, Japan and United States. Frequent co-authors include Pradeep R. Varadwaj, Arpita Varadwaj, Timothy J. Egan, Kenneth L. Brown, Orde Q. Munro, Koichi Yamashita, David A. Baldwin, John M. Pratt, Catherine H. Kaschula and Ignacy Cukrowski. Their work appears in journals such as Journal of the American Chemical Society, Journal of Biological Chemistry and The Journal of Physical Chemistry B.
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.