Silica Nanoparticles for Enzyme Immobilization and Biotechnological Applications
A special issue of Nanomaterials (ISSN 2079-4991). This special issue belongs to the section "Biology and Medicines".
Deadline for manuscript submissions: closed (30 September 2023) | Viewed by 172
Special Issue Editors
Interests: nanostructured materials; sol–gel synthesis; enzyme immobilization; catalysis
Special Issues, Collections and Topics in MDPI journals
Interests: enzyme immobilization; biocatalysis; biofuels; mesoporous silica
Special Issues, Collections and Topics in MDPI journals
Special Issue Information
Dear Colleagues,
Silica nanoparticles represent a broad platform for a wide range of applications, from biomedical to biotechnology, food packaging and many more. This is due to their versatility, their endogenous properties, and the multiple and simple synthetic routes. These include the sol-gel technique, which allows for morphological and porosity modulation, and easy surface chemical functionalization. Silica nanoparticles are valid supports for enzymatic immobilization. Enzymes have a number of advantages as catalysts, such as high selectivity and mild operating conditions, as well as providing a green synthetic route. The need to immobilize enzymes on solid matrices arises from their intrinsic instability and, in many cases, from their high costs. In fact, immobilization allows for the reuse of the heterogeneous catalyst and often stabilizes the conformation of the protein, which is essential for its catalytic function, even when it operates in conditions other than physiological ones. Silica nanoparticles, as support for immobilization, are a low-cost matrix with thermal, chemical and mechanical stability and can obtain high enzymatic loads. Porous silica allows for enzymes to be hosted within its structure, providing them with greater stability, without the need for covalent links. By modulating the size, morphology and interconnection of the pores, it is possible to obtain the most suitable support for each enzyme, which preserves its functionality and reduces the mass transport limitations of substrates and products.
This Special Issue aims to open a discussion on the possible applications of enzymes immobilized on silica nanoparticles in the industrial sector of biotechnology.
Prof. Dr. Aniello Costantini
Dr. Valeria Califano
Guest Editors
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Keywords
- silica nanoparticles
- hierarchical structures
- mesoporous silica
- enzyme immobilization
- biocatalysis
- biotechnology
