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Antifouling activity of enzyme-functionalized silica nanobeads
Date Issued
March 2016
Date Available
07T14:55:54Z October 2015
Abstract
The amelioration of biofouling in industrial processing equipment is critical for performance and reliability. While conventional biocides are effective in biofouling control, they are potentially hazardous to the environment and in some cases corrosive to materials. Enzymatic approaches have been shown to be effective and can overcome the disadvantages of traditional biocides, however they are typically uneconomic for routine biofouling control. The aim of this study was to design a robust and reusable enzyme-functionalized nano-bead system having biofilm dispersion properties. This work describes the biochemical covalent functionalization of silica-based nanobeads (hereafter referred to as Si-NanoB) with Proteinase K (PK). Results showed that PK-functionalized Si-NanoB are effective in dispersing both protein-based model biofilms and structurally altering Pseudomonas fluorescens biofilms, with significant decreases in surface coverage and thickness of 30.1% and 38.85%, respectively, while increasing surface roughness by 19 % following 24 h treatments on bacterial biofilms. This study shows that enzyme-functionalized nanobeads may potentially be an environmentally friendly and cost effective alternative to pure enzyme and chemical treatments.
Sponsorship
European Research Council
Science Foundation Ireland
Type of Material
Journal Article
Publisher
Wiley
Journal
Biotechnology and Bioengineering
Volume
11
Issue
3
Start Page
501
End Page
512
Copyright (Published Version)
2015 the Authors
Language
English
Status of Item
Peer reviewed
This item is made available under a Creative Commons License
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Zanoni_et_al-2015-Biotechnology_and_Bioengineering.pdf
Size
2.04 MB
Format
Owning collection
Scopus© citations
16
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