Walter Callen
Impact in
- Biotechnology top 2%
- Enzyme Production and Characterization
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- Enzyme Catalysis and Immobilization
- Microbial Metabolic Engineering and Bioproduction
- Genomics and Phylogenetic Studies
Papers in
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- Enzyme Catalysis and Immobilization 3
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- Enzyme Production and Characterization 6
- Co-authors
- Eric J. Mathur (7 shared papers)Robert M. Kelly (6 shared papers)Dan E. Robertson (3 shared papers)Jay M. Short (3 shared papers)Michael Bauer (2 shared papers)Xuqiu Tan (2 shared papers)Gerhard Frey (2 shared papers)Marjory A. Snead (3 shared papers)
- Journals
- Methods in enzymology on CD-ROM/Methods in enzymology (4 papers)Biotechnology and Bioengineering (1 paper)Journal of Bacteriology (1 paper)Protein Science (1 paper)Nucleic Acids Research (1 paper)
- Partner nations
- United StatesUnited KingdomCosta Rica
In The Last Decade
Walter Callen
10 papers receiving 563 citations
Peers
Comparison fields: 5 of 61
- Biotechnology 320
- Molecular Biology 411
- Biomedical Engineering 262
- Nutrition and Dietetics 78
- Plant Science 110
Countries citing papers authored by Walter Callen
This map shows the geographic impact of Walter Callen'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 Walter Callen with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Walter Callen more than expected).
Fields of papers citing papers by Walter Callen
This network shows the impact of papers produced by Walter Callen. 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 Walter Callen. The network helps show where Walter Callen may publish in the future.
Co-authors
The 25 scholars most cited alongside Walter Callen, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.
All Works
| # | Work | ||
|---|---|---|---|
| 1 | 2002 | 150 | |
| 2 | 2004 | 135 | |
| 3 | 1999 | 110 | |
| 4 | 2004 | 89 | |
| 5 | 2001 | 47 | |
| 6 | 2001 | 20 | |
| 7 | 1991 | 17 | |
| 8 | 2001 | 15 | |
| 9 | 2001 | 9 | |
| 10 | 2001 | 6 |
About Walter Callen
Walter Callen is a scholar working on Molecular Biology, Biotechnology, Biomedical Engineering, Nutrition and Dietetics and Plant Science, having authored 10 papers that have together received 598 indexed citations. Recurring topics across this work include Biofuel production and bioconversion (6 papers), Enzyme Production and Characterization (6 papers), Enzyme Catalysis and Immobilization (3 papers), Microbial Metabolites in Food Biotechnology (2 papers), Polysaccharides and Plant Cell Walls (2 papers), Cholinesterase and Neurodegenerative Diseases (1 paper), Diet, Metabolism, and Disease (1 paper) and Computational Drug Discovery Methods (1 paper). The work is most often cited by research in Biotechnology (320 citations), Molecular Biology (411 citations), Biomedical Engineering (262 citations), Nutrition and Dietetics (78 citations) and Plant Science (110 citations). Walter Callen has collaborated with scholars based in United States, United Kingdom and Costa Rica. Frequent co-authors include Eric J. Mathur, Robert M. Kelly, Dan E. Robertson, Jay M. Short, Michael Bauer, Xuqiu Tan, Gerhard Frey, Marjory A. Snead, John L. Macomber and Carl A. Miller. Their work appears in journals such as Methods in enzymology on CD-ROM/Methods in enzymology, Biotechnology and Bioengineering, Journal of Bacteriology, Protein Science and Nucleic Acids Research.
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.