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Chitosan- and polypropylene-oriented surface modification using excimer laser and their biocompatibility study.

Mohammad Khaledian1, Faeze Jiroudhashemi1, Esmaeil Biazar1

  • 1a Department of Biomaterials Engineering , Tonekabon Branch, Islamic Azad University , Tonekabon , Iran.

Artificial Cells, Nanomedicine, and Biotechnology
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Summary

Laser treatment of medical polymers like chitosan and polypropylene enhances their surface properties and biocompatibility. Oriented laser-treated films showed improved cellular interactions, making them promising for medical applications.

Keywords:
Chitosancellular investigationlaser irradiationpolypropylenesurface topography

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Area of Science:

  • Biomaterials Science
  • Polymer Chemistry
  • Surface Engineering

Background:

  • Surface modification is crucial for enhancing the biocompatibility of medical polymers.
  • Conventional polymers like chitosan and polypropylene often require surface treatments for improved performance in biomedical applications.

Purpose of the Study:

  • To investigate the effects of laser modification on the surface characteristics and biocompatibility of chitosan and polypropylene.
  • To explore the creation of diverse physicochemical properties through oriented and non-oriented laser treatments.

Main Methods:

  • Surface morphology was analyzed using Atomic Force Microscopy (AFM).
  • Wettability and surface energy were evaluated through contact angle measurements.
  • Cellular responses were assessed to determine biocompatibility improvements.

Main Results:

  • Laser treatment created distinct nanostructures on the polymer surfaces.
  • Contact angle measurements indicated a wide range of wettability properties after irradiation.
  • Biocompatibility of the laser-modified polymeric films was significantly enhanced, particularly for oriented films.

Conclusions:

  • Laser irradiation is an effective method for tailoring the surface properties of medical polymers.
  • Oriented laser treatment shows particular promise for enhancing polymer biocompatibility in medical devices.