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  • Title: Preservation of cell viability and protein conformation on immobilization within nanofibers via electrospinning functionalized yeast.
    Author: Canbolat MF, Gera N, Tang C, Monian B, Rao BM, Pourdeyhimi B, Khan SA.
    Journal: ACS Appl Mater Interfaces; 2013 Oct 09; 5(19):9349-54. PubMed ID: 24033090.
    Abstract:
    We investigate the immobilization of a model system of functionalized yeast that surface-display enhanced green fluorescent protein (eGFP) within chemically crosslinked polyvinyl alcohol (PVA) nanofibers. Yeast is incorporated into water insoluble nanofibrous materials by direct electrospinning with PVA followed by vapor phase chemical crosslinking of the polymer. Incorporation of yeast into the fibers is confirmed by elemental analysis and the viability is indicated by live/dead staining. Following electrospinning and crosslinking, we confirm that the yeast maintains its viability as well as the ability to express eGFP in the correct conformation. This method of processing functionalized yeast may thus be a powerful tool in the direct immobilization of properly folded, active enzymes within electrospun nanofibers with potential applications in biocatalysis.
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