Cell adhesion on natural rubber latex films: influence of surface properties

Mok K. L., . and Evans S. D., . and Evans S. W., . Cell adhesion on natural rubber latex films: influence of surface properties. pp. 205-221. ISSN 1511-1768

Adhesion proliferation and spreading of cells on polymeric surfaces are regulated by the various surface properties of substrates and cell responses are often indicative of their biocompatibility nature. Three differently prevulcanised natural rubber latexes i.e. irradiated (IR) peroxide (PX) and sulphur (SPV) vulcanised latexes and one non-vulcanised high aminoniated latex (HA) were examined for their wettability surface microstructure and surface chemical composition. Influence of these surface properties on the cell activities of L929 fibroblasts was studied. Scanning electron microscopy showed that IR and PX supported greater cell activity than HA while SPV was inferior. Cell activity was enhanced on the rougher less hydrophobic and cleaner (i.e. surfaces with fewer chemicals) IR and PX surfaces. HA and SPV surfaces showed additional presence of a myriad of chemical elements not detected in IR or PX. SPV was particularly detrimental to cells likely due to the distinct presence of zinc-related chemicals on its surface. It is apparent that the prevulcanisation process has imparted greater surface microstructure and hydrophilicity to IR and PX surfaces the probable reason for these two latex materials to be more superior for adhesion proliferation and spreading of cells.

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Abstract

Adhesion proliferation and spreading of cells on polymeric surfaces are regulated by the various surface properties of substrates and cell responses are often indicative of their biocompatibility nature. Three differently prevulcanised natural rubber latexes i.e. irradiated (IR) peroxide (PX) and sulphur (SPV) vulcanised latexes and one non-vulcanised high aminoniated latex (HA) were examined for their wettability surface microstructure and surface chemical composition. Influence of these surface properties on the cell activities of L929 fibroblasts was studied. Scanning electron microscopy showed that IR and PX supported greater cell activity than HA while SPV was inferior. Cell activity was enhanced on the rougher less hydrophobic and cleaner (i.e. surfaces with fewer chemicals) IR and PX surfaces. HA and SPV surfaces showed additional presence of a myriad of chemical elements not detected in IR or PX. SPV was particularly detrimental to cells likely due to the distinct presence of zinc-related chemicals on its surface. It is apparent that the prevulcanisation process has imparted greater surface microstructure and hydrophilicity to IR and PX surfaces the probable reason for these two latex materials to be more superior for adhesion proliferation and spreading of cells.

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Item Type:	Article
AGROVOC Term:	Natural rubber
AGROVOC Term:	Latex
AGROVOC Term:	Surface area
AGROVOC Term:	Implantation
AGROVOC Term:	Peroxides
AGROVOC Term:	Hydrophilicity
AGROVOC Term:	Elasticity
AGROVOC Term:	Scanning microscopy
AGROVOC Term:	Electron microscopy
AGROVOC Term:	Ultrasonics
Depositing User:	Ms. Suzila Mohamad Kasim
Last Modified:	24 Apr 2025 06:28
URI:	http://webagris.upm.edu.my/id/eprint/23200

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