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Direct micro-patterning of biodegradable polymers using ultraviolet and femtosecond lasers

Paper ID Volume ID Publish Year Pages File Format Full-Text
11787 758 2005 8 PDF Available
Title
Direct micro-patterning of biodegradable polymers using ultraviolet and femtosecond lasers
Abstract

Thin films of biodegradable polymeric materials, poly(εε-caprolactone) (PCL) and poly(glycolic acid) (PGA) were micro-patterned using a Ti-sapphire femtosecond pulsed laser and ArF excimer UV laser in ambient conditions. The laser-patterned polymers were characterized using a scanning electron microscope (SEM), Fourier transform infrared spectroscopy in attenuated total reflectance mode (FTIR-ATR) and X-ray photoelectron spectroscopy (XPS). In-vitro degradation tests were performed and the laser-patterned samples showed to be within one standard deviation of the control samples. Our results demonstrate that both lasers are excellent tools for micro-patterning biodegradable polymers since the bulk properties of the material can remain intact and because the direct-write method is rapid, flexible, and a chemical-free process.

Keywords
Biodegradable polymer; Laser micromachining; Femtosecond laser; Excimer laser; Photothermal; Photochemical; Hydrolytic degradation
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Direct micro-patterning of biodegradable polymers using ultraviolet and femtosecond lasers
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Publisher
Database: Elsevier - ScienceDirect
Journal: Biomaterials - Volume 26, Issue 36, December 2005, Pages 7642–7649
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us