Journal
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
Volume 102, Issue 1, Pages 86-95Publisher
SPRINGER
DOI: 10.1007/s10971-022-05751-x
Keywords
Biomimetic silica; Enzyme stability; Enzyme immobilization; Silica; Sol-gel
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The immobilization of enzymes using biomimetic silica nanoparticles is an efficient method for enhancing stability in biotechnological applications. This strategy offers biocompatibility, mild synthetic conditions, and rapid polymerization reactions. Recent research has focused on modifications of the synthetic approaches and the use of combined materials or additives to improve enzyme immobilization. This review highlights the importance of the immobilization strategy and its impact on enzyme stabilization and biocatalyst properties.
The immobilization of enzymes using sol-gel strategies has long been used to provide stability to biocatalysts for a wide range of applications. The biomimetic formation of silica nanoparticles outperforms other sol-gel approaches for enzyme integration due to its biocompatibility related to mild synthetic conditions and rapid polymerization reaction that avoids curing incubations. Biomimetic silica based micro and nano particles have been reported as a very efficient method for enzyme immobilization resulting in high thermal, mechanical and operational stability. As the main incentive for immobilizing enzymes is overcoming their labile nature for in vitro applications, the strategy has been intensively used in the last decade. Reports on modifications of the synthetic approaches, use of combined materials or additives during enzyme immobilization using biomimetic silica have been building. In this work, we review the literature of the last five years on biomimetic silica immobilized enzymes with a special focus on the stabilization gained by the biocatalysts and the rationale behind it. Studies on the benefits of combined materials on improving the properties of the biocatalysts and applications of the stabilized enzymes are also included to highlight the significance of this immobilization strategy for biotechnological applications. [GRAPHICS] .
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