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: In this article, cellulose nanowhiskers were grafted by n-octadecyl-isocyanate (CNW-ICN) applying an in situ surface grafting method, and the compatibility of the long aliphatic grafted chain was investigated by thermal, mechanical and permeability analysis of solvent cast nanocomposite films.
191 citations
TL;DR: The adsorption of a model acidic drug to amino-functionalized mesoporous silica both from organic solvents, and from water as a function of pH, gives a rational basis for optimization of support-drug interactions and explains the relatively minor influence of amino groups on the release of acidic drugs reported in the literature.
191 citations
TL;DR: In this paper, the impact of the rate and related pyrochemical activation on the performance of in-situ surface modification of MOF materials away from thermal decomposition is investigated.
Abstract: Electrochemical activation is an effective and simple method to obtain in-situ surface modification of MOF materials away from thermal decomposition However, the impact of the rate and related pha
191 citations
TL;DR: A global strategy to prepare a versatile and robust reactive platform for immobilizing molecules on carbon substrates with controlled morphology and high selectivity is presented.
Abstract: A global strategy to prepare a versatile and robust reactive platform for immobilizing molecules on carbon substrates with controlled morphology and high selectivity is presented. The procedure is based on the electroreduction of a selected triisopropylsilyl (TIPS)-protected ethynyl aryldiazonium salt. It avoids the formation of multilayers and efficiently protects the functional group during the electrografting step. After TIPS deprotection, a dense reactive ethynyl aryl monolayer is obtained which presents a very low barrier to charge transfer between molecules in solution and the surface. As a test functionalization, azidomethylferrocene was coupled by "click" chemistry with the modified surface. Analysis of the redox activity highlights a surface concentration close to the maximum possible attachment considering the steric hindrance of a ferrocenyl group.
191 citations
TL;DR: A reverse microemulsion method is reported for preparing monodispersed silica-coated gold (or silver) nanoparticles without the use of a silane coupling agent or polymer as the surface primer, enabling straightforward surface functionalization via co-condensation between tetraethyl orthosilicate and another silane with the desired functional groups.
Abstract: A reverse microemulsion method is reported for preparing monodispersed silica-coated gold (or silver) nanoparticles without the use of a silane coupling agent or polymer as the surface primer. This method enables a fine control of the silica shell thickness with nanometer precision. As compared to the Stober method reported for direct silica coating, which can only coat large gold particles (∼50 nm in diameter) at low concentrations (<1.5 × 1010 particles/mL), this new approach is capable of coating gold particles of a wide range of sizes (from 10 to 50 nm) at a much higher concentration (∼1.5 × 1013 particles/mL). Moreover, it enables straightforward surface functionalization via co-condensation between tetraethyl orthosilicate and another silane with the desired functional groups. The functional groups introduced by this method are readily accessible and thus useful for various applications.
190 citations