PMID- 15332627 OWN - NLM STAT- MEDLINE DCOM- 20041014 LR - 20191210 IS - 0957-4530 (Print) IS - 0957-4530 (Linking) VI - 15 IP - 4 DP - 2004 Apr TI - Rationalising the design of polymeric thermoresponsive biomaterials. PG - 513-7 AB - We investigated the cell adhesion and growth of a series of thermoresponsive copolymers of N-isopropylacrylamide (NIPA) and N-tert-butylacrylamide (NtBA) above their lower critical solubility temperatures (LCST). It was found that cell adhesion and growth on the solvent cast films improved with increasing the NtBA content in the copolymers. The improvement was dependent on cell line. The surfaces of copolymers were analysed by atomic force microscopy. The topography of polymer films was not dependent on composition. The differences in the cell attachment and growth were attributed to the variation of surface energy with composition. The surface energy of copolymers decreased with the increase in the NtBA content. We conclude that poly(N-isopropylacrylamide) (poly(NIPA)) is a relatively poor substrate for cell growth and proliferation. However, its ability to support cell growth can be significantly improved by suitable modification. FAU - Rochev, Yu AU - Rochev Y AD - National Centre for Biomedical Engineering Science, National University of Ireland, Galway, Ireland. rotchev@yahoo.com FAU - O'Halloran, D AU - O'Halloran D FAU - Gorelova, T AU - Gorelova T FAU - Gilcreest, V AU - Gilcreest V FAU - Selezneva, I AU - Selezneva I FAU - Gavrilyuk, B AU - Gavrilyuk B FAU - Gorelov, A AU - Gorelov A LA - eng PT - Comparative Study PT - Evaluation Study PT - Journal Article PL - United States TA - J Mater Sci Mater Med JT - Journal of materials science. Materials in medicine JID - 9013087 RN - 0 (Acrylamides) RN - 0 (Biocompatible Materials) RN - 0 (Polymers) RN - 102667-59-4 (poly(N-isopropylacrylamide-N-tert-butylacrylamide)copolymer) SB - IM MH - Acrylamides/*chemistry MH - Animals MH - Biocompatible Materials/*chemistry/radiation effects MH - Cell Adhesion MH - Cell Culture Techniques/instrumentation/*methods MH - Cell Division MH - Cell Line MH - Cell Line, Tumor MH - Equipment Design MH - Fibroblasts/*cytology MH - *Hot Temperature MH - Humans MH - Laryngeal Neoplasms/*pathology MH - Materials Testing MH - Mice MH - Polymers/chemistry/radiation effects MH - Species Specificity MH - Statistics as Topic MH - Surface Properties EDAT- 2004/08/31 05:00 MHDA- 2004/10/16 09:00 CRDT- 2004/08/31 05:00 PHST- 2004/08/31 05:00 [pubmed] PHST- 2004/10/16 09:00 [medline] PHST- 2004/08/31 05:00 [entrez] AID - 10.1023/b:jmsm.0000021130.11711.16 [doi] PST - ppublish SO - J Mater Sci Mater Med. 2004 Apr;15(4):513-7. doi: 10.1023/b:jmsm.0000021130.11711.16.