Richard Ludwig

689 total citations
27 papers, 467 citations indexed

About

Richard Ludwig is a scholar working on Molecular Biology, Radiology, Nuclear Medicine and Imaging and Spectroscopy. According to data from OpenAlex, Richard Ludwig has authored 27 papers receiving a total of 467 indexed citations (citations by other indexed papers that have themselves been cited), including 20 papers in Molecular Biology, 13 papers in Radiology, Nuclear Medicine and Imaging and 6 papers in Spectroscopy. Recurrent topics in Richard Ludwig's work include Protein purification and stability (15 papers), Monoclonal and Polyclonal Antibodies Research (13 papers) and Viral Infectious Diseases and Gene Expression in Insects (8 papers). Richard Ludwig is often cited by papers focused on Protein purification and stability (15 papers), Monoclonal and Polyclonal Antibodies Research (13 papers) and Viral Infectious Diseases and Gene Expression in Insects (8 papers). Richard Ludwig collaborates with scholars based in United States, Germany and Sweden. Richard Ludwig's co-authors include Edward M. Arnett, Tapan K. Das, Li Tao, Liyuan Tao, Robert A. Flowers, Anthony Leone, Hui Wei, Jinmei Fu, Thomas W. Bell and Jacob Bongers and has published in prestigious journals such as Journal of the American Chemical Society, Analytical Chemistry and The Journal of Organic Chemistry.

In The Last Decade

Richard Ludwig

27 papers receiving 447 citations

Peers

Richard Ludwig
Thomas Gossas Sweden
Ester Jiménez‐Moreno Spain
Eric J. Yearley United States
Arundhati Nag United States
Juan Etxebarria Spain
Maria P. Frushicheva United States
Soo Tng Quah Singapore
Filip Wojciechowski Canada
Adel M. ElSohly United States
Nicholas P. Barwell United Kingdom
Thomas Gossas Sweden
Richard Ludwig
Citations per year, relative to Richard Ludwig Richard Ludwig (= 1×) peers Thomas Gossas

Countries citing papers authored by Richard Ludwig

Since Specialization
Citations

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

Fields of papers citing papers by Richard Ludwig

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Richard Ludwig

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

All Works

20 of 20 papers shown
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Bautista, James A., Zhi Chen, Neil D. Hershey, et al.. (2019). Structure-Function Assessment and High-Throughput Quantification of Site-Specific Aspartate Isomerization in Monoclonal Antibody Using a Novel Analytical Tool Kit. Journal of Pharmaceutical Sciences. 109(1). 422–428. 6 indexed citations
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Barnett, Gregory V., Gurusamy Balakrishnan, Naresh Chennamsetty, et al.. (2018). Enhanced Precision of Circular Dichroism Spectral Measurements Permits Detection of Subtle Higher Order Structural Changes in Therapeutic Proteins. Journal of Pharmaceutical Sciences. 107(10). 2559–2569. 16 indexed citations
5.
Liu, Peiran, Xin Hao Zhu, Wei Wu, et al.. (2018). Subunit mass analysis for monitoring multiple attributes of monoclonal antibodies. Rapid Communications in Mass Spectrometry. 33(1). 31–40. 25 indexed citations
6.
Qian, Yueming, Zhiqiang Chen, Xin Huang, et al.. (2018). Early identification of unusually clustered mutations and root causes in therapeutic antibody development. Biotechnology and Bioengineering. 115(9). 2377–2382. 2 indexed citations
7.
Du, Cheng, Yunping Huang, Ameya U. Borwankar, et al.. (2018). Using hydrogen peroxide to prevent antibody disulfide bond reduction during manufacturing process. mAbs. 10(3). 500–510. 15 indexed citations
8.
Huang, Yunping, Jinmei Fu, Richard Ludwig, et al.. (2017). Identification and quantification of signal peptide variants in an IgG1 monoclonal antibody produced in mammalian cell lines. Journal of Chromatography B. 1068-1069. 193–200. 8 indexed citations
9.
Yan, Yuetian, Hui Wei, Stanley R. Krystek, et al.. (2017). Mapping the Binding Interface in a Noncovalent Size Variant of a Monoclonal Antibody Using Native Mass Spectrometry, Hydrogen–Deuterium Exchange Mass Spectrometry, and Computational Analysis. Journal of Pharmaceutical Sciences. 106(11). 3222–3229. 9 indexed citations
10.
Du, Cheng, Robert Martin, Yunping Huang, et al.. (2017). Vitamin B12 association with mAbs: Mechanism and potential mitigation strategies. Biotechnology and Bioengineering. 115(4). 900–909. 11 indexed citations
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Xu, Jianlin, Mi Sun Jin, Chao Huang, et al.. (2015). Investigation of Color in a Fusion Protein Using Advanced Analytical Techniques: Delineating Contributions from Oxidation Products and Process Related Impurities. Pharmaceutical Research. 33(4). 932–941. 20 indexed citations
13.
Huang, Yunping, Richard Ludwig, Jinmei Fu, et al.. (2012). Glycine to glutamic acid misincorporation observed in a recombinant protein expressed by Escherichia coli cells. Protein Science. 21(5). 625–632. 11 indexed citations
14.
Fu, Jinmei, Jacob Bongers, Li Tao, et al.. (2012). Characterization and identification of alanine to serine sequence variants in an IgG4 monoclonal antibody produced in mammalian cell lines. Journal of Chromatography B. 908. 1–8. 20 indexed citations
15.
Bongers, Jacob, Jinmei Fu, Peiqing Huang, et al.. (2011). Characterization of glycosylation sites for a recombinant IgG1 monoclonal antibody and a CTLA4-Ig fusion protein by liquid chromatography–mass spectrometry peptide mapping. Journal of Chromatography A. 1218(45). 8140–8149. 44 indexed citations
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Bell, Thomas W., et al.. (1996). An Effective Route to Highly Substituted Pyridines. Synlett. 1996(1). 79–81. 1 indexed citations
18.
Ludwig, Richard, et al.. (1996). 2-aryl-1,3-dithianes and -dithiolanes: A nearly ideal series for relating the energies for bond breaking to electron transfer. Heteroatom Chemistry. 7(6). 481–502. 3 indexed citations
19.
Arnett, Edward M. & Richard Ludwig. (1995). On the Relevance of the Parr-Pearson Principle of Absolute Hardness to Organic Chemistry. Journal of the American Chemical Society. 117(24). 6627–6628. 16 indexed citations
20.
Pirrung, Michael C., Hyunsoo Han, & Richard Ludwig. (1994). Inhibitors of Thermus thermophilus Isopropylmalate Dehydrogenase. The Journal of Organic Chemistry. 59(9). 2430–2436. 18 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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