Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.13091/737
Title: Synthesis and characterization of electrospun PVA/Zn2+ metal composite nanofibers for lipase immobilization with effective thermal, pH stabilities and reusability
Authors: Işık, Ceyhun
Arabacı, Gökmen
Doğaç, Yasemin İspirli
Deveci, İlyas
Teke, Mustafa
Keywords: Nanofiber
Polymer/Ionic Metal Composites
Electrospinning
Lipase
Organic Framework
Nanoparticle/Polymer Composites
Chitosan Nanocomposites
Membranes
Polymer
Enzyme
Temperature
Biocatalyst
Fabrication
Absorption
Issue Date: 2019
Publisher: ELSEVIER SCIENCE BV
Abstract: Polyvinyl alcohol (PVA)/Zn2+ electrospun nanofibers that were a kind of polymer/ionic metal composite was successfully embedded in the hybrid fibers for the first time in the literature, due to chemical interactions between PVA and Zn2+. Also, the nanofibers were used as carriers for the first time in enzyme immobilization. The nanofibers were optimized and synthesized by electrospinning technique according to the operational parameters like as PVA concentration (%), Zn2+ concentration (%), voltage (kV), needle tip-collector distance (cm) and injection speed (ml/h). The morphology and structure of the nanofibers were characterized by SEM, XRD, ATR-FTIR and TGA. Lipase was immobilized on the nanofibers by adsorption and crosslinking methods. According to immobilization results, nanofiber enhanced enzyme stability properties like as thermal stability, pH stability and reusability. Lipase immobilized nanofiber protected 90% of its activity after 14 reuses.
URI: https://doi.org/10.1016/j.msec.2019.02.031
https://hdl.handle.net/20.500.13091/737
ISSN: 0928-4931
1873-0191
Appears in Collections:Mühendislik ve Doğa Bilimleri Fakültesi Koleksiyonu
PubMed İndeksli Yayınlar Koleksiyonu / PubMed Indexed Publications Collections
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collections
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collections

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