Topic
Surface modification
About: Surface modification is a research topic. Over the lifetime, 35544 publications have been published within this topic receiving 859567 citations.
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TL;DR: An effective surface modification method was developed using hexamethylene diisocyanate as a coupling agent and it was concluded that the surface hydroxyl groups of nano-apatite have the reactivity towards isocyanates groups.
188 citations
188 citations
TL;DR: A suitable interface for an improved cell growth of human vascular endothelial cells as well as for cornea endothelium cells has been created by immobilization of the cell adhesion mediator fibronectin using bifunctional spacer molecules at several carrier polymer surfaces.
Abstract: The true aim of biomaterials research is to create implant surfaces which interact actively with the biological system and provoke exactly the same reactions as the corporal tissues do. The improvement in the interface compatibility of polymers selected for implantation by directed surface modification is an important contribution to biomaterial development. Different polymer properties are adjusted and characterized independently of the carrier polymer by means of introduction of modern surface analytical methods and surface techniques. In addition, the interactions between the modified polymer surface and the biological system are measured. In this way, the hydrophilization of a polyurethane (Tecoflex™) and a poly(ether sulfone) by plasma induced graftcopolymerization of hydrogels like poly (hydroxyethyl methacrylate) leads to improved blood compatibility. Functionalization by means of SO2 plasma treatment of medical grade poly(vinyl chloride) increases the adsorption of the basal membrane protein fibronectin, which correlates with an improvement in cell growth. A suitable interface for an improved cell growth of human vascular endothelial cells as well as for cornea endothelial cells has been created by immobilization of the cell adhesion mediator fibronectin using bifunctional spacer molecules at several carrier polymer surfaces like smooth poly(vinyl chloride), modified polyurethane, Tecoflex™ and poly (dimethyl siloxane).
188 citations
TL;DR: The surface chemical characteristics of activated carbon treated by ozone and alkaline are determined in terms of surface functional groups and surface acidity.
188 citations
TL;DR: This work reports the first noninvasive functionalization of the polymers of intrinsic microporosity (PIMs) where inclusion of the amidoxime functionality in PIM-1 increases carbon dioxide capacity up to 17% and micropore surface area by 20% without losing its film forming ability.
188 citations