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Stabilizing Hepatocellular Phenotype Using Optimized Synthetic Surfaces
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Chitin based polyurethanes using hydroxyl terminated polybutadiene, part III: surface characteristics.

Khalid Mahmood Zia1, Mohammad Zuber, Muhammad Jawwad Saif

  • 1Institute of Chemistry, Government College University, Faisalabad 38030, Pakistan.

International Journal of Biological Macromolecules
|October 15, 2013
PubMed
Summary

New hydroxy terminated polybutadiene (HTPB)-chitin polyurethanes (PUs) offer tunable hydrophobicity and antibacterial properties. These materials show potential for use as non-absorbable sutures.

Keywords:
Antibacterial activityChitinContact angle measurementHTPBPolyurethane

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Area of Science:

  • Materials Science
  • Polymer Chemistry
  • Biomaterials

Background:

  • Polyurethanes (PUs) are versatile polymers with applications in various fields.
  • Chitin is a biocompatible and biodegradable polysaccharide with potential for material modification.
  • Developing PUs with controlled surface properties and biological activity is of significant interest.

Purpose of the Study:

  • To synthesize hydroxy terminated polybutadiene (HTPB)-chitin based polyurethanes (PUs).
  • To investigate the effect of varying chitin content on the surface properties and antibacterial activity of the synthesized PUs.
  • To evaluate the potential of these novel PUs as non-absorbable suture materials.

Main Methods:

  • Synthesis of HTPB-based prepolymers using HTPB and toluene diisocyanate (TDI).
  • Chain extension of prepolymers with different mass ratios of chitin and 1,4-butane diol (BDO).
  • Characterization of surface properties (contact angle, water absorption, swelling) and assessment of antibacterial activity.

Main Results:

  • Incorporation of chitin into the PU structure led to decreased water contact angle, reduced water absorption, and minimized swelling.
  • The antibacterial activity of the PUs was significantly influenced by the chitin content.
  • The synthesized HTPB-chitin PUs exhibited properties suitable for non-absorbable suture applications.

Conclusions:

  • HTPB-chitin based PUs can be synthesized with controlled hydrophobicity and enhanced antibacterial properties.
  • The chitin content is a critical factor in tuning the surface characteristics and biological performance of these PUs.
  • The developed materials show promise as advanced non-absorbable suture materials.