Mesoporous Silica Materials Templated with an Anionic Surfactant/Natural Polymer System for Enzyme Immobilization
Mesoporous silica (MPS) has been synthesized by using biodegradable gelatin and anionic surfactant sodium dodecylsulphate (SDS) as a dual-template. The mesostructures of MPS were characterized by N2 adsorption-desorption isotherms and transmission electron microscopy (TEM). The MPS was chosen as support for immobilization of porcine pancreatic lipase (PPL) by physical adsorption. The immobilized PPL possessed good thermal stability and excellent reusability solution in hydrolysis reactions of triacetin in phosphate buffer. The results also indicated that the immobilized PPL maintained about 40% of its initial activity even after being reused six times.
Zhong Cao, Lixian Sun, Xueqiang Cao, Yinghe He
X. L. Wang et al., "Mesoporous Silica Materials Templated with an Anionic Surfactant/Natural Polymer System for Enzyme Immobilization", Advanced Materials Research, Vols. 233-235, pp. 2172-2175, 2011