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Published on: June 19, 2015
Biotinylated glycopolymers synthesized by atom transfer radical polymerization
Vimary Vázquez-Dorbatt1, Heather D Maynard
1Department of Chemistry and Biochemistry and California Nanosystems Institute, University of California, Los Angeles, 607 Charles E. Young Drive East, Los Angeles, California 90095-1569, USA.
Biomacromolecules
|August 15, 2006
Summary
Researchers developed biotinylated glycopolymers using atom transfer radical polymerization (ATRP). These polymers successfully bind to streptavidin, showing potential for bioconjugation applications.
Area of Science:
- Polymer Chemistry
- Biomaterials Science
- Carbohydrate Chemistry
Background:
- Glycopolymers are polymers containing carbohydrate moieties, offering unique biological recognition properties.
- Biotinylation and streptavidin binding are crucial for various biomedical applications, including diagnostics and drug delivery.
- Atom Transfer Radical Polymerization (ATRP) is a controlled polymerization technique enabling synthesis of well-defined polymers.
Purpose of the Study:
- To synthesize biotinylated glycopolymers with controlled molecular weights and narrow distributions.
- To investigate the efficacy of ATRP in creating these functional polymers.
- To confirm the presence of biotin and the binding affinity to streptavidin.
Main Methods:
- Synthesis of poly(methacrylate)s with N-acetyl-d-glucosamine side chains via ATRP.
- Utilizing a biotin-functionalized initiator for ATRP.
- Deprotection of monomers or direct polymerization of unprotected monomers.
- Characterization using gel permeation chromatography (GPC), 1H Nuclear Magnetic Resonance (NMR), and surface plasmon resonance (SPR).
Main Results:
- Well-defined glycopolymers were synthesized with low polydispersity indices (PDI = 1.07-1.23).
- Number-average molecular weights correlated with monomer-to-initiator ratios.
- Successful confirmation of biotin end-groups via 1H NMR.
- Demonstrated specific binding to streptavidin using SPR.
Conclusions:
- Atom transfer radical polymerization is a suitable method for synthesizing biotinylated glycopolymers.
- The synthesized glycopolymers exhibit controlled structures and specific binding to streptavidin.
- These findings support the potential use of these glycopolymers in bioconjugation and related fields.
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