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Fabricating Superhydrophobic Polymeric Materials for Biomedical Applications

Fabricating Superhydrophobic Polymeric Materials for Biomedical Applications

Published on: August 28, 2015

Electrospun chitosan/PEDOT nanofibers.

Melek Kiristi¹, Aysegul Uygun Oksuz, Lutfi Oksuz

¹Arts and Science Faculty, Department of Chemistry, Suleyman Demirel University, 32260 Isparta, Turkey. melekkiristi@gmail.com

Materials Science & Engineering. C, Materials for Biological Applications

|August 6, 2013

Summary

This summary is machine-generated.

Plasma modification enhances chitosan

Keywords:

Antibacterial Chitosan Electrospinning Plasma-modification Poly(3,4-ethylenedioxythiophene)

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Area of Science:

Materials Science
Biomaterials Engineering
Polymer Chemistry

Background:

Chitosan is a biocompatible polymer with inherent antibacterial properties.
Conducting polymers offer unique electronic and electrochemical functionalities.
Combining these materials could lead to advanced functional nanofibers.

Purpose of the Study:

To develop novel conducting nanofibers by blending plasma-modified chitosan with poly(3,4-ethylenedioxythiophene).
To investigate the effect of plasma modification on chitosan's properties within the blend.
To characterize the morphology, chemical interactions, electrical, and electrochemical properties of the resulting nanofibers.

Main Methods:

Electrospinning was employed to fabricate nanofibers from blends of plasma-modified chitosan, poly(3,4-ethylenedioxythiophene), and polyvinyl alcohol.
Fourier transform infrared spectroscopy (FTIR) was used to analyze chemical composition and molecular interactions.
Fiber morphology was examined, and electrical conductivity was measured using a four-point probe.
Electrochemical properties were assessed via cyclic voltammetry.

Main Results:

Plasma modification of chitosan led to thinner nanofiber formation (170-200 nm) compared to unmodified chitosan (190-246 nm).
The conducting blends incorporating plasma-modified chitosan exhibited superior antibacterial activity.
Fourier transform infrared spectroscopy confirmed chemical interactions and the presence of blend components.
Electrical and electrochemical measurements demonstrated the conductive nature of the fabricated nanofibers.

Conclusions:

Plasma modification is an effective strategy to enhance the properties of chitosan for conducting nanofiber applications.
The developed conducting nanofibers show promise for applications requiring both conductivity and antibacterial activity.
The study highlights the potential of blending modified biopolymers with conducting polymers for advanced material design.