Glutaraldehyde, poly

Poly(vinyl alcohol) is readily cross-linked with low molecular weight dialdehydes such as glutaraldehyde or glyoxal (163). Alkanol sulfonic acid and poly(vinyl alcohol) yield a sulfonic acid-modified product (164). 

A semi-interpenetrated network was obtained by bulk polymerization of 2-hydroxye-thyl methacrylate incorporated in DMF treated PET films by solvent-exchange technique, followed by treatment of films in e-lectrical discharges. Heparinization was accomplished by reacting glutaraldehyde with heparin and poly(2-hydroxyethyl methacrylate) present on the surface of modified polyester films. The immobilization of heparin was indirectly evidenced by chromatographying the silylated hydrolyza-tes of heparinized PET films and heparin, respectively. In vitro experiments demonstrated the enhanced thromboresistance of heparinized films. 

BIOCLAIM A process for removing toxic metals from aqueous systems by use of bacteria supported on poly(ethylenimine) glutaraldehyde. 

The surfactant is an important component of this process and acts to stabilize the growing polymeric particles by surface adsorption. Phase separation and the formation of solid particles occur before or after termination of the polymerization process [42]. Polymerization can occur in some systems without the presence of surfactants [40]. Various particulate systems have been prepared by this method, including poly(styrene) [43], poly(vinylpyridine) [44, 45], poly(acrolein) [46, 47], and poly(glutaraldehyde) [48-50],... 

Arenkov et al. prepared poly(acrylamide) gel pads for use in protein microarrays [199], The gels were prepared by photopolymerization of acrylamide and crosslinkers. Capture probes were immobilized, either by use of glutaraldehyde or by converting some of the acrylamide groups into hydrazides and subsequent coupling of aldehyde-modified antibodies to the pending hydrazide groups. Then, immunoassays were performed on the pads, either assays with directly labeled analytes or sandwich assays. Furthermore, the gel pads were used for enzyme activity studies. 

Many monomers can be grafted by redox polymerization to the magnetic core [magnetic material embedded in poly(vinyl alcohol) matrix nominally 100% cross-linked with glutaraldehyde] to get whisker-type resins " . Acrylic acid and acryl-... 

Natural polymer-based networks have also been investigated. The proteins etc comprising antibodies represent the largest group [164, 166, 169, 189] but this is of course a specialised area. Poly(saccharides), in particular starch [60], dextran [161], dextrin [161] and maltohexose [161], and also natural polypeptides, mainly enzymes [162-165], embody the more accessible biopolymers. In some instances imprinting is achieved through formation of covalent bonds, with crosslinkers like cyanuric chloride or glutaraldehyde. Likewise chitin derivatives similarly crosslinked have been exploited [136]. 

Separation of water-acetic acid poly(vinyl alcohol) membranes cross-linked with mixtures glutaraldehyde Aroma compound separation, pharmaceutical and flavor-perfume industry Pervaporative separation of acetic acid-water mixtures was performed over a range of 70-90 wt% acetic acid in the feed at temperatures varying from 35°C to 50°C [110]... 

Yeom CK and Lee KH. Pervaporation separation of water-acetic acid mixtures through poly(vinyl alcohol) membranes crosslinked with glutaraldehyde. J. Memb. Sci. 1996 109(2) 257-265. 

PS—polystyrene UF—urea-formaldehyde resin glut—glutaraldehyde thio— thiourea BSA—bovine serum albumin PHEMA—poly(hydroxyethyl methacrylate) IDA—iminodiacetic acid LDH—lactate dehydrogenase OPS—o-phosphoserine 8HQ—8-hydroxyquinoUne Bpa— bis(2-pyridyl-methyl) amine. 

Figure 9. Schematic fabrication of LbL films comprising poly(vinylsulfonic acid) (PVS)and PAMAM-Au. The sequential deposition of LbL multilayers was carried out by immersing the substrate alternately into (a) PVS and (b) PAMAM-Au solutions for 5 min per step (c) After deposition of 3 bilayers, an ITO-PVS/PAMAM-Au)3 CoHCF electrode was prepared by potential cycling (d) The enzyme immobilization to produce ITO-PVS/PAMAM-Au)3 CoHCF-GOx was carried out in a solution containing BSA, glutaraldehyde and GOx (Adapted from Ref.[124])...

Shaded cells indicate compatibility of polymer with solvent or crosslinker PLA poly(lactic acid), PGA poly(glycolic acid) PLGA poly(lactic-co-glycolic acid), PCL poly(e-caprolactone), PEU poly(ester urethane), PEEUU poly(ester ether urethane), PVA poly(vinyl alcohol), PEO poly(ethylene oxide), HA hyaluronic acid, DMF W,W-dimethylformamide, A4 acetic acid, FA formic acid, DCM dichloromethane, HFIP hexafluoroisopropanol, THF tetrahydrofuran, GA glutaraldehyde, NMMO N-methyl-morpholine A -o, idc/water (NMMO/water)... 

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