Enzyme by entrapment

Figure 1). Finally, high ordered pure silica mesoporous material, containing lipase enzyme by entrapping procedure, has been obtained by sol-gel method (XRD results not showed).

Several papers have described the immobilization of enzymes by entrapment in foams. Especially polyurethane foam (PUF) has been widely used (Hu, Koras Stormo, 1993 Ferreriradias and Dafonseca, 1995 LeJeune et al., 1997). Hu et al. found that the... 

Copolymers of Vinylidene Chloride. The glass-transition temperatures of these copolymers vary nonlinearly with composition, as is the case for copolymers of methyl methacrylate, but these show a maximum. It is a broad maximum around 105 C at 55-80 wt% acrylonitrile. (The Tg of vinylidene chloride homopolymer is ca -20°C, whereas PAN s is ca 100°C.) Again, sequence distribution explains such behavior (163). These copolymers have good barrier properties and are used for surface Coatings. Acrylonitrile grafting on starch imparts hydrophilic behavior to starch and results in exceptional water absorption capability (164-167). These copolymers can also immobilize enzymes by entrapment or covalent bonding (168). 

Kang M.S., Elango N., Mattie E., Au-Young J., Robbins P., and Cabib E. 1984. Isolation of chitin synthetase from Saccharomyces cerevisiae. Purification of an enzyme by entrapment in the reaction product. J Biol Chem 259 14966 14972. 

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