Premium
Enzymatic surface treatment of poly (3‐hydroxybutyrate) ( PHB ), and poly (3‐hydroxybutyrate‐co‐3‐hydroxyvalerate) ( PHBV )
Author(s) -
Berezithalie,
Yada Bopha,
Godfroid Thomas,
Senechal Tangi,
Wei Ren,
Zimmermann Wolfgang
Publication year - 2015
Publication title -
journal of chemical technology and biotechnology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.64
H-Index - 117
eISSN - 1097-4660
pISSN - 0268-2575
DOI - 10.1002/jctb.4513
Subject(s) - polyhydroxyalkanoates , biocompatibility , contact angle , wetting , hydrolysis , cutinase , surface modification , poly 3 hydroxybutyrate , chemistry , chemical engineering , polyester , nuclear chemistry , materials science , polymer chemistry , organic chemistry , biochemistry , bacteria , composite material , genetics , biology , engineering
BACKGROUND Polyhydroxyalkanoates ( PHA ) are very interesting biopolymers, their most promising applications lie in biomedical science. The wettability of the surface of PHA increases their biocompatibility properties, making them suitable for such applications. RESULTS The treatment of the surface of poly (3‐hydroxybutyrate) ( PHB ) and poly (3‐hydroxybutyrate‐ co ‐3‐hydroxyvalerate) ( PHBV ) films with the cutinase TfCut2 from Thermobifida fusca KW3 resulted in decrease of the water contact angle of PHB films from 90° to 36° and PHBV films from 93–98° to 50–60° with 3‐hydroxyvalerate content ranging from 6 to 9 mol%, respectively. CONCLUSION A linear dependence up to 9 mol% was found between the 3‐hydroxyvalerate content of the PHBV and the resulting water contact angle decrease, caused by partial hydrolysis of the surface of the films by the cutinase. PHBV films with a 3‐hydroxyvalerate content of 6 mol% showed the highest gain in surface hydophilicity following treatment with the enzyme. © 2014 Society of Chemical Industry