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Related Experiment Video

Updated: Jun 21, 2026

High-throughput Identification of Bacteria Repellent Polymers for Medical Devices
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Published on: November 5, 2016

Polymerizable vancomycin derivatives for bactericidal biomaterial surface modification: structure-function

McKinley C Lawson1, Richard Shoemaker, Kevin B Hoth

  • 1Department of Chemical and Biological Engineering, University of Colorado, Boulder, CO 80309, USA.

Biomacromolecules
|July 18, 2009
PubMed
Summary
This summary is machine-generated.

Synthesizing polymerizable vancomycin derivatives for implant surfaces shows promise. These modified biomaterials effectively reduced Staphylococcus epidermidis bacterial growth, offering new strategies for preventing implant-associated infections.

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Nanomechanics of Drug-target Interactions and Antibacterial Resistance Detection
11:56

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Published on: October 25, 2013

Area of Science:

  • Biomaterials Science
  • Polymer Chemistry
  • Infectious Disease Research

Background:

  • Implant-related infections are a significant clinical challenge.
  • Surface modification of biomaterials with antimicrobial agents can mitigate this problem.
  • Vancomycin is a potent antibiotic often used to combat Gram-positive bacterial infections.

Purpose of the Study:

  • To synthesize polymerizable vancomycin derivatives for surface functionalization.
  • To evaluate the antimicrobial activity of these modified surfaces against Staphylococcus epidermidis.
  • To investigate the impact of modification site and polymer chain length on vancomycin activity.

Main Methods:

  • Synthesis of four vancomycin derivatives with acrylamide or poly(ethylene glycol) (PEG)-acrylate functionalities.
  • Surface-mediated polymerization using living radical photopolymerization.
  • Assessment of monomeric and surface-based antimicrobial activity via bacterial CFU assays and molecular dynamics simulations.

Main Results:

  • Functionalization of vancomycin decreased monomeric activity by 6-75-fold.
  • Longer PEG chains (5000 Da) resulted in a greater reduction in activity compared to shorter chains (3400 Da).
  • Vancomycin-PEG-acrylate surfaces achieved a 7-8 log reduction in Staphylococcus epidermidis CFUs compared to controls.

Conclusions:

  • Polymerizable vancomycin derivatives can be successfully grafted onto surfaces.
  • Surface-based vancomycin exhibits significant antimicrobial activity against Staphylococcus epidermidis.
  • This approach offers a promising strategy for developing infection-resistant implantable biomaterials.