Effective Antifouling Using Quorum-Quenching Acylase Stabilized in Magnetically-Separable Mesoporous Silica

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Highly effective antifouling was achieved by immobilizing and stabilizing an acylase, disrupting bacterial cell-to-cell communication, in the form of cross-linked enzymes in magnetically separable mesoporous silica. This so-called "quorum-quenching" acylase (AC) was adsorbed into spherical mesoporous silica (S-MPS) with magnetic nanoparticles (Mag-S-MPS), and further cross-linked for the preparation of nanoscale enzyme reactors of AC in Mag-S-MPS (NER-AC/Mag-S-MPS). NER-AC effectively stabilized the AC activity under rigorous shaking at 200 rpm for 1 month, while free and adsorbed AC lost more than 90% of their initial activities in the same condition within 1 and 10 days, respectively. When applied to the membrane filtration for advanced water treatment, NER-AC efficiently alleviated the membrane surface, thereby enhancing the filtration performance separable NER-AC, as an effective and sustainable antifouling m for water reclamation. biofilm maturation of Pseudomonas aeruginosa PAO1 on the membrane surface, thereby enhancing the filtration performance by preventing membrane fouling. Highly stable and magnetically separable NER-AC, as an effective and sustainable antifouling material, has a great potential to be used in the membrane filtration for water reclamation.
Publisher
AMER CHEMICAL SOC
Issue Date
2014-04
Language
English
Article Type
Article
Keywords

ENZYME IMMOBILIZATION; BACTERIA; BIOFILM; COATINGS

Citation

BIOMACROMOLECULES, v.15, no.4, pp.1153 - 1159

ISSN
1525-7797
DOI
10.1021/bm401595q
URI
http://hdl.handle.net/10203/245057
Appears in Collection
CBE-Journal Papers(저널논문)
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