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. 2001 Jul;36(1-3):49–53. doi: 10.1023/A:1014041003617

Adhesion, growth and detachment of cells on modified polystyrene surface

V Hendrick 1, E Muniz 2, G Geuskens 2, J Wérenne 4,✉
PMCID: PMC3449656  PMID: 19003314

Abstract

By adsorbing poly(N-isopropylacrylamide) (PNIPAAm) from an aqueous solution onto oxidised polystyrene without the need for grafting the polymer to the surface, we showed here that cells(CHO-K1) adhere and grow well at 37 °C and are detached by lowering the temperature to 10 °C without any other deleterious treatment. Both bacterial culture grade polystyrene Petri dishes and polystyrene beads (120 to 250μm diameters) commercially available used in static conditions of growth were tested with similar results. The contact angle of modified Petri dishes with a water droplet increases from 36 to 58° when the temperature is raised from 25 to 37 °C indicating change in hydrophilicity of the surface as a function of temperature.

Keywords: adsorption of poly(N-isopropylarcrylamide), cell adhesion, surface modification of polystyrene, temperaturedependent detachment

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