Interactions of nucleophilic reagents and copolymers of N-vinylpyrrolidone with N-hydroxyphthalamide esters of acrylic, methacrylic and crotonic acids

Immobilization of Biomolecules on Poly(vinyldimethylazlactone)-Containing Surface Scaffolds

“…The PGMA thicknesses were approximately 5.6 nm, which is consistent with expectations when a 1 wt % PGMA solution is used. 13 In agreement with results from Zdyrko et al, 22 a water contact angle of approximately 60°was measured for the PGMA-modified surfaces.…”

“…In this article, we demonstrate a straightforward method for creating surface-tethered layers containing pVDMA that can be subsequently functionalized by biomolecules containing primary amines. VDMA was copolymerized with vinylpyrollidone (VP), which is selected because of its low toxicity and biocompatibility, and the resultant copolymers were tethered to surfaces using a “primer” polymer layer approach . Poly(glycidyl methacrylate) (PGMA) was the base of the polymer support because it is readily grafted onto silicon wafers, providing a high surface density of epoxy groups available for subsequent modification, including reaction with ATRP initiators, carboxylic acids, and amines. , Given previous successes in making patterned monolayers and polymer-modified surfaces with drop-on-demand (DOD) inkjet printing, − there is significant potential for advancements in biomaterial coatings created using this method.…”

Silver Hydrogen Sulfate, Ag(O3SOH): Preparation, and the OD Character of the Crystal Structure

“…The high sensitivity of these products to moisture produced a spreading of results even in more recent times. Nazarova and Tsukervanik obtained a solid formulated as Ag(O 3 SOH) by melting equimolar amounts of Ag 2 SO 4 and H 2 SO 4 , while other authors explicitly stated that silver hydrogen sulfate cannot be prepared under these conditions. These difficulties convinced later authors to adopt different methods of preparation, such as the reaction of AgO 2 CCF 3 with H 2 SO 4 in trifluoroacetic acid as solvent , or the reaction between Ag 2 SO 4 and H 2 SO 4 in acetonitrile as solvent: 4,6 in the latter case, the acetonitrile-solvated Ag(O 3 SOH) was obtained, which was reported 4 to revert to Ag 2 SO 4 and H 2 SO 4 upon attempts to desolvate the product in vacuo.…”