@article {17596, title = {Superhydrophobic to Superhydrophylic Biomimetic Poly(3-Hydroxybutyrate) Surfaces Made by Phase Inversion}, journal = {Materials Science Forum}, volume = {730-732}, year = {2013}, month = {2013-04-17 00:00:00}, pages = {44-49}, publisher = {TRANS TECH PUBLICATIONS LTD, LAUBLSRUTISTR 24, CH-8717 STAFA-ZURICH, SWITZERLAND}, abstract = {

Biodegradable and biocompatible materials have gained increased attentions because of their applications in biomedicine and tissue engineering. Among them,\ poly(3-hydroxybutyrate) (PHB), a natural origin polymer, has been employed in biomedical applications as a suitable substitute of synthetic polymers for preparing scaffolds and other devices. In this context it is relevant\ to\ understand the interactions between the cells and PHB\ surfaces, which are governed\ by\ aspects such as surface topography and chemical composition. Both, surface topography and chemistry determine surface wettability. The aim of this work is\ to\ process PHB\ surfaces\ exhibiting extreme wettablility properties, ranging from\ superhydrophobic\ (surface contact angle higher than 150 degrees)\ to\ superhydrophilic (surface contact angle lower than 5 degrees). A simple\ phaseinversion\ method was used\ to\ fabricate surperhydrophobic PHB surface. Chloroform was used as solvent, and a mixture of water and ethanol as the coagulation bath. The water contact angle was found\ to\ be 154.3\ +/- 2.9 degrees. Furthermore the surface was treated\ by\ argon plasma for different times, permitting the control of wettability of the PHB surface from the\ superhydrophobicto\ superhydrophilic regime.

}, keywords = {biomaterial, contact angle modification, phase inversion, plasma, Poly(3-hydroxybutyrate), superhydrophilic, superhydrophobic}, issn = {0255-5476}, doi = {10.4028/www.scientific.net/MSF.730-732.44}, url = {http://apps.webofknowledge.com/full_record.do?product=UA\&search_mode=GeneralSearch\&qid=1\&SID=R26mYWbF6MIAgV5us3R\&page=1\&doc=1}, author = {Gonz{\'a}lez-Obeso, C. and Song, W. and Rodriguez-P{\'e}rez, M. A. and Mano, J. F.} }