Summary

Senior scientist at Bristol Myers Squibb.

Education

• Bioanalytical and Physical Chemistry

  2021-05
  University of the Pacific
• Environmental Engineering

  2014-05
  University of the Pacific
• Ecology

  2012-06
  University of Science and Technology Beijing

Publications

• Chirality effects on the intrinsic acidity of isomeric tripeptides containing a D/L-Cysteine on the N-terminus: CAA and dCAA

  2025
  International Journal of Mass Spectrometry

  Wang, S., Buen, Z., Harvey, K. R., Zhang, Y., & Ren, J. (2025). International Journal of Mass Spectrometry, 514, 117472. Volume 514, August 2025, 117472. Department of Chemistry, University of the Pacific, 3601 Pacific Avenue, Stockton, CA, 95211, USA. Received 9 March 2025, Revised 17 May 2025, Accepted 18 May 2025, Available online 20 May 2025, Version of Record 27 May 2025.

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• Subtle chirality effects of a D/l-Cysteine on the intrinsic acidity and conformation of isomeric tripeptides ACA and AdCA

  2021
  International Journal of Mass Spectrometry

  Zhang, Y., Buen, Z., Browne, M. D., Mann, Y. S., & Ren, J. (2021). International Journal of Mass Spectrometry, 469, 116685. Volume 469, November 2021, 116685. Department of Chemistry, University of the Pacific, 3601 Pacific Avenue, Stockton, CA, 95211, USA. Received 20 May 2021, Revised 11 August 2021, Accepted 17 August 2021, Available online 24 August 2021, Version of Record 26 August 2021.

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• Mass spectrometry studies of the fragmentation patterns and mechanisms of protonated peptoids

  2020
  Biopolymers

  Ren, J., Tian, Y., Hossain, E., Ho, J. S., Mann, Y. S., Zhang, Y., ... & Zuckermann, R. N. (2020). Biopolymers, 111(7), e23358.

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• Characterization of protonated AcAlaDab and AcDabAla by IRMPD spectroscopy and molecular modeling

  2019
  International Journal of Mass Spectrometry

  Batoon, P., Zhang, Y., Berden, G., Oomens, J., & Ren, J. (2019). International Journal of Mass Spectrometry, 444, 116178.

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• Synthesis and mass spectrometry analysis of oligo-peptoids

  2018
  JoVE (Journal of Visualized Experiments)

  Ren, J., Mann, Y. S., Zhang, Y., & Browne, M. D. (2018). JoVE (Journal of Visualized Experiments), (132), e56652.

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Presentations

• Chirality Induced Conformational and Thermochemical Changes in Cysteine Polyalanine Peptides

  2020
  Conference on Ion Chemistry and Mass Spectrometry, UCLA

  Los Angeles, CA, USA

  Oral Presentation. Authors: Yuntao Zhang, Joshua S. Ho, Jianhua Ren.
• How Can D-Amino Acids Influence the Conformations and the Acidities of Oligopeptides?

  2019
  Conference on Ion Chemistry and Mass Spectrometry, UCLA

  Los Angeles, CA, USA

  Oral Presentation. Authors: Yuntao Zhang, Joshua Ho, Jianhua Ren.
• Revealing the Remarkable Basicity and the Fine Structures of Lysine-Alanine Dipeptides by IRMPD and Computational Studies

  2021
  69th ASMS, Philadelphia

  Philadelphia, PA, USA

  Poster Presentation. Authors: Yuntao Zhang, Patrick Batoon, Shiyuan Wang, Giel Berden, Jos Oomens, Jianhua Ren.
• Systematic Alteration of Gas-Phase Acidities and Conformations with Insertion of a D-Amino Acid in Oligopeptides

  2019
  67th ASMS, Atlanta

  Atlanta, GA, USA

  Poster Presentation. Authors: Yuntao Zhang, Joshua S. Ho, Jianhua Ren.
• Conformations and Energetics of B- and Y-Ions in Peptoid Fragmentation

  2019
  67th ASMS, Atlanta

  Atlanta, GA, USA

  Poster Presentation. Authors: Joshua S. Ho, Yuntao Zhang, Jianhua Ren.
• Understanding the Perplexing and Interesting Pathways of Peptoid Fragmentation

  2019
  67th ASMS, Atlanta

  Atlanta, GA, USA

  Poster Presentation. Authors: Yadwinder S. Mann, Yuntao Zhang, Jianhua Ren.
• Chirality Induced Gas-Phase Acidity and Conformational Changes in Cysteine-Polyalanine Peptides

  2018
  66th ASMS, San Diego

  San Diego, CA, USA

  Poster Presentation. Authors: Yuntao Zhang, Jianhua Ren.
• Gas-Phase Acidities and Conformations of Oligopeptide Epimers with D- and L-Cysteine

  2017
  65th ASMS, Indianapolis

  Indianapolis, IN, USA

  Poster Presentation. Authors: Yuntao Zhang, Zachary Buen, Jianhua Ren.

Teaching

• General Chemistry (CHEM23) Lab
  University of the Pacific, Chemistry Department

  Role: Undergraduate course

  This course is designed for general interest in physical science and for preparation for further study in chemistry.
• General Chemistry (CHEM25) Lab
  University of the Pacific, Chemistry Department

  Role: Undergraduate course

  The important general principles, theories and concepts of chemistry are studied, including fundamentals of chemistry and equilibrium.
• General Chemistry (CHEM27) Lab
  University of the Pacific, Chemistry Department

  Role: Undergraduate course

  More important general principles, theories, and concepts of chemistry are studied including modern applications of quantum mechanics, bonding, chemical kinetics, liquids, solids, properties of solutions, coordination compounds, organic chemistry and biochemistry.

Portfolio

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  Portfolio

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