نتایج جستجو برای: surface grafting

تعداد نتایج: 662497  

2012
Fabienne Poncin-Epaillard Tjasa Vrlinic Dominique Debarnot Miran Mozetic Arnaud Coudreuse Gilbert Legeay Benaïssa El Moualij Willy Zorzi

This review describes different strategies of surface elaboration for a better control of biomolecule adsorption. After a brief description of the fundamental interactions between surfaces and biomolecules, various routes of surface elaboration are presented dealing with the attachment of functional groups mostly thanks to plasma techniques, with the grafting to and from methods, and with the a...

2003
Rajendra R. Bhat Michael R. Tomlinson Jan Genzer

Polymer-coated surfaces are routinely used in industrially important applications including prevention of biofouling (in fabrication of protein-resistant surfaces), improving stability of colloidal dispersions, surface lubrication, or enhancing wettability and adhesion. Polymer chains chemically bound to the surface represent a special class of polymer coatings that has gained considerable atte...

Journal: :Langmuir : the ACS journal of surfaces and colloids 2007
Alla Synytska Manfred Stamm Stefan Diez Leonid Ionov

We report on the fabrication of micropatterned polymer surfaces that allow the reversible inversion of surface topography, charge, and wettability. Micropatterned surfaces were prepared by grafting two oppositely charged polyelectrolytes (poly(acrylic acid) and poly(2-vinylpyridine)) using a combination of photolithography, "lift off", and "grafting to" techniques. The switchable surfaces are o...

Journal: :E3S web of conferences 2023

Synthesized graft copolymers of chloroprene rubber with acrylic acid. A mixture benzene and dimethylformamide was used as a solvent, potassium persulfate polymerization initiator. Based on the dependence copolymerization rate concentrations components temperature, order reaction in terms concentration acid (2.0), (1.2) activation energy process (24.4 kJ/mole) were determined. The degree graftin...

The present study deals with the synthesis andfunctionalization of mesoporous silica nanoparticles as drug delivery platforms. SBA-15 nanorods with high surface area (1010 m2g-1) were functionalized by post grafting method using 3-mercaptopropyl trimethoxysilane (MPTS). The parent and thiol-functionalized SBA-15 nanorods were used as nanocarriers for an anticancer drug (gemcitabine). The charac...

F. Asadifard G.R. Shahhosseini, M. Enayatollahi M. Shapourgan R. Haghjo S. Heidari Keshel

Poly N-isopropylacrylamide was successfully grafted onto a polystyrene cell culture dish by gamma ray. In this study, the effect of a radiation dose (radiation absorbed dosages of 10, 20, 30, 40 KGy) under appropriate temperature and grafting conditions was investigated. The FTIR analysis showed the existence of the graft PNIPAAm on the substrate. The optimal value of the dose for grafting was ...

Journal: :Journal of materials chemistry. A, Materials for energy and sustainability 2021

It is discovered that the negative effects on OER activity caused by stabilization of NPs with surface-capping polymers can be mitigated decreasing grafting density or increasing hydrophilicity polymer chains.

2017
Abdulrahman Baki Cheryl V. Rahman Lisa J. White David J. Scurr Omar Qutachi Kevin M. Shakesheff

Injectable poly (dl-lactic-co-glycolic acid) (PdlLGA) microspheres are promising candidates as biodegradable controlled release carriers for drug and cell delivery applications; however, they have limited functional groups on the surface to enable dense grafting of tissue specific biocompatible molecules. In this study we have evaluated surface adsorption, entrapment and oxygen plasma treatment...

Journal: :Acta Crystallographica Section A Foundations of Crystallography 2011

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