Nonadhesive nanotopography: fibroblast response to poly(n-butyl methacrylate)-poly(styrene) demixed surface features

Dalby, M.J. , Riehle, M.O. , Johnstone, H.J.H., Affrossman, S. and Curtis, A.S.G. (2003) Nonadhesive nanotopography: fibroblast response to poly(n-butyl methacrylate)-poly(styrene) demixed surface features. Journal of Biomedical Materials Research Part A, 67A(3), pp. 1025-1032. (doi: 10.1002/jbm.a.10139)

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It is becoming clear that cells do not only respond to micrometric scale topography, but may also respond to topography at the nanometric scale. Nano-fabrication methods such as electron beam lithography are, however, expensive and time consuming. Polymer demixing of poly(styrene) and poly(4-bromostyrene) has been found to produce nano-scale islands of reproducible height, and the islands have been previously shown to effect cell events such as adhesion, spreading, proliferation, and differentiation. This study uses demixed poly(styrene) and poly(<i>n</i>-butyl methacrylate) to produce nano-islands with closer packing and narrower widths compared with those previously studied. Observations have been made of morphological and cytoskeletal changes in human fibroblasts interacting with 10- and 50-nm-high islands. The methods used included scanning electron microscopy, fluorescent microscopy, and optical microscopy. The results indicated that the cells do not respond differently to the 10-nm islands compared with planar samples but, in contrast, the 50-nm islands are nonadhesive.

Item Type:Articles
Keywords:Nanobiotechnology, topography, fibroblasts, cytoskeleton, adhesion.
Glasgow Author(s) Enlighten ID:Curtis, Professor Adam and Dalby, Professor Matthew and Riehle, Dr Mathis
Authors: Dalby, M.J., Riehle, M.O., Johnstone, H.J.H., Affrossman, S., and Curtis, A.S.G.
Subjects:R Medicine > R Medicine (General)
T Technology > TP Chemical technology
College/School:College of Medical Veterinary and Life Sciences > Institute of Molecular Cell and Systems Biology
Journal Name:Journal of Biomedical Materials Research Part A

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