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Streamlining LC-MS Characterization of Pharmaceutical Polymers by Fourier-Transform-Based Deconvolution and

Andrew K Swansiger1, Christopher M Crittenden2, Simon A Chan2

  • 1Department of Chemistry and Biochemistry, 1253 University of Oregon, Eugene, Oregon 97403-1253, United States.

Analytical Chemistry
|September 4, 2024
PubMed
Summary
This summary is machine-generated.

Polymer conjugation improves biotherapeutics, but analysis is complex. This study introduces a new method using Fourier transform-based deconvolution for streamlined pharmaceutical polymer characterization and reaction monitoring.

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Area of Science:

  • Pharmaceutical Science
  • Analytical Chemistry
  • Polymer Chemistry

Background:

  • Polymer conjugation enhances biotherapeutics by increasing in vivo half-life, improving stability, efficacy, and reducing toxicity.
  • Variability in polymer synthesis leads to broad distributions, complicating quality control and characterization.
  • Liquid chromatography-mass spectrometry (LC-MS) is powerful but challenging to interpret due to polydispersity and overlapping charge distributions.

Purpose of the Study:

  • To develop a streamlined method for analyzing pharmaceutical polymers.
  • To improve the characterization of polymer size, composition, branching, and end-group functionalization.
  • To enable effective reaction monitoring in polymer conjugation processes.

Main Methods:

  • Leveraging Fourier transform-based deconvolution.
  • Utilizing macromolecular mass defect analysis.
  • Applying these techniques to liquid chromatography-mass spectrometry (LC-MS) data.

Main Results:

  • Demonstrated a new approach to streamline pharmaceutical polymer analysis.
  • Provided detailed insights into polymer size, composition, branching, and end-group functionalization.
  • Enabled effective monitoring of conjugation reactions.

Conclusions:

  • The developed method simplifies complex polymer analysis.
  • This technique enhances quality control for biotherapeutic development.
  • Offers a powerful tool for characterizing functionalized polymers and monitoring reactions.