Please use this identifier to cite or link to this item: https://doi.org/10.1016/0142-9612(95)00347-9
Title: Animal tissue-polypyrrole hybrid biomaterials: Shrinkage temperature evaluation
Authors: Khor, E. 
Li, H.C.
Wee, A. 
Keywords: Animal tissue
Biocompatibility
Hybrid biomaterials
Polypyrrole
Shrinkage temperature
Issue Date: 1996
Publisher: Elsevier Science Ltd
Source: Khor, E., Li, H.C., Wee, A. (1996). Animal tissue-polypyrrole hybrid biomaterials: Shrinkage temperature evaluation. Biomaterials 17 (19) : 1877-1879. ScholarBank@NUS Repository. https://doi.org/10.1016/0142-9612(95)00347-9
Abstract: The shrinkage temperature of animal tissue-polypyrrole hybrids have been evaluated. The results indicate that the tissue's shrinkage temperature behaviour is retained. The tissues do not appear to have been affected by surface layering with polypyrrole or poly(sodium 3-pyrrolyl-butanesulphonate) (PSPBS). The main influence on the shrinkage temperature appears to be the reaction conditions in producing the hybrids i.e. the solvent and the presence of FeCl3. Hybrids obtained from reactions where the solvent was acetic acid demonstrated irreversible denaturation giving a final lower shrinkage temperature than the original value. All tissues exposed to FeCl3, were found to have higher shrinkage temperatures. This has been attributed to transient coordination bonding between the metal ion and side groups on the amino acid. The single peak of PSPBS-tissue hybrids in acetic acid is probably associated with the effective penetration of the PSPBS into the tissue, permitting some interaction between the functionalities of the conducting polymer and collagen.
The shrinkage temperature of animal tissue-polypyrrole hybrids have been evaluated. The results indicate that the tissue's shrinkage temperature behaviour is retained. The tissues do not appear to have been affected by surface layering with polypyrrole or poly(sodium 3-pyrrolyl-butanesulphonate) (PSPBS). The main influence on the shrinkage temperature appears to be the reaction conditions in producing the hybrids i.e. the solvent and the presence of FeCl3. Hybrids obtained from reactions where the solvent was acetic acid demonstrated irreversible denaturation giving a final lower shrinkage temperature than the original value. All tissues exposed to FeCl3 were found to have higher shrinkage temperatures. This has been attributed to transient coordination bonding between the metal ion and side groups on the amino acid. The single peak of PSPBS-tissue hybrids in acetic acid is probably associated with the effective penetration of the PSPBS into the tissue, permitting some interaction between the functionalities of the conducting polymer and collagen.
Source Title: Biomaterials
URI: http://scholarbank.nus.edu.sg/handle/10635/30503
ISSN: 01429612
DOI: 10.1016/0142-9612(95)00347-9
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.

SCOPUSTM   
Citations

11
checked on Dec 6, 2017

WEB OF SCIENCETM
Citations

9
checked on Nov 17, 2017

Page view(s)

212
checked on Dec 10, 2017

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.