title: Cell attachment-detachment control on temperature-responsive thin surfaces for novel tissue engineering.
abstract: Temperature-responsive intelligent surfaces, prepared by the modification of an interface mainly with poly(N-isopropylacrylamide) and its derivatives, have been investigated. Such surfaces exhibit temperature-responsive hydrophilic/hydrophobic alterations with external temperature changes, which, in turn, result in thermally modulated attachment and detachment with cells. The advantage of this system is that cells cultured on such temperature-responsive surfaces can be recovered as single cells and/or confluent cell sheets, while keeping the deposited extracellular matrix intact, simply by lowering the temperature without conventional enzymatic treatment. Here, we focus and compare various methods of producing temperature-responsive surfaces for controlling cell attachment/detachment. Spontaneous cell attachment and detachment using several types of temperature-responsive surfaces are mentioned and various effects, such as film thickness and polymer conformation, are discussed. In addition, the development of the next generation of temperature-responsive surfaces using modifications of the polymer coating to allow for rapid cell recovery is summarized.
authors.affiliation: Institute of Advanced Biomedical Engineering and Science, Tokyo Women's Medical University (TWIns), 8-1 Kawadacho, Shinjuku, Tokyo 162-8666, Japan.
authors.forename: Yoshikazu
authors.initials: Y
authors.lastname: Kumashiro
authors.forename: Masayuki
authors.initials: M
authors.lastname: Yamato
authors.forename: Teruo
authors.initials: T
authors.lastname: Okano
mesh_terms: D001672:Biocompatible Materials / Q000737:chemistry*; D002448:Cell Adhesion / Q000502:physiology*; D002465:Cell Movement / Q000502:physiology*; D008422:Materials Testing; D008567:Membranes, Artificial; D013499:Surface Properties; D013696:Temperature; D023822:Tissue Engineering / Q000379:methods*
chemical_list: D001672:Biocompatible Materials; D008567:Membranes, Artificial