Poly(ethylene glycol) Adlayers Immobilized to Metal Oxide Substrates Through Catechol Derivatives: Influence of Assembly Conditions on Formation and Stability
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Poly(tetrafluoroethylene) (PTFE) films were surface-modified by employing a reaction solution of benzophenone and sodium hydride in anhydrous dimethylformamide at a temperature of 150 degrees C for 12 h. Electron spectroscopy for chemical analysis (ESCA) s ...
We report a synchrotron-radiation-excited photoemission study of the adsorption of W(CO)6 on Si(111)2 x 1. W(CO)6 is shown to adsorb molecularly on Si at 100 K, and to undergo dissociation at room temperature (RT). Exposure of a reacted surface at 100 K to ...
The nitric oxide monomer-dimer equil. was monitored at 273-364 K. The enthalpy change for the reaction 2 NO -> (NO)2, calcd. from the temp. dependence of the UV absorption intensity, and the heat of formation at 316 K are -1.07 +- 0.07 and 42.09 +- 0.11 kc ...
Using a first-principles approach, we study Si 2p core-level shifts at water and hydrogen covered Si(001)2 x 1 surfaces. After allowing for full relaxation of the surface structures, core-level shifts are calculated including core-hole relaxation effects. ...
Postsurgical adhesions represent a common complication following a variety of surgical procedures. We sought to develop and evaluate a water-soluble polymer that could self-assemble onto tissue surfaces, forming a barrier on the surface. A copolymer was sy ...
The biocompatibility of microcapsules made by the co-acervation of alginate and poly(l-lysine) (PLL) was enhanced by coating the surface of these microcapsules with a poly(ethylene glycol) (PEG)-based hydrogel. The hydrogel was formed by an interfacial pho ...
