通过邻氨基苯酚生物接枝制备具有蛋白质排斥性能的聚醚砜膜

Protein-Repellence PES Membranes Using Bio-grafting of Ortho-aminophenol.

作者信息

Nady Norhan, El-Shazly Ahmed H, Soliman Hesham M A, Kandil Sherif H

机构信息

Polymeric Research Department, Advanced Technology and New Materials Research Institute (ATNMRI), City of Scientific Research and Technological Applications (SRTA-City), New Boarg El-Arab City 21934, Alexandria, Egypt.

Chemical and Petrochemical Engineering Department, School of Energy, Environmental and Chemical and Petrochemical Engineering, Egypt-Japan University of Science and Technology (E-JUST), New Boarg El-Arab City 21934, Alexandria, Egypt.

出版信息

Polymers (Basel). 2016 Aug 15;8(8):306. doi: 10.3390/polym8080306.

DOI:10.3390/polym8080306

PMID:30974579

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC6432355/

Abstract

Surface modification becomes an effective tool for improvement of both flux and selectivity of membrane by reducing the adsorption of the components of the fluid used onto its surface. A successful green modification of poly(ethersulfone) (PES) membranes using ortho-aminophenol (2-AP) modifier and laccase enzyme biocatalyst under very flexible conditions is presented in this paper. The modified PES membranes were evaluated using many techniques including total color change, pure water flux, and protein repellence that were related to the gravimetric grafting yield. In addition, static water contact angle on laminated PES layers were determined. Blank and modified commercial membranes (surface and cross-section) and laminated PES layers (surface) were imaged by scanning electron microscope (SEM) and scanning probe microscope (SPM) to illustrate the formed modifying poly(2-aminophenol) layer(s). This green modification resulted in an improvement of both membrane flux and protein repellence, up to 15.4% and 81.27%, respectively, relative to the blank membrane.

摘要

表面改性通过减少所用流体成分在膜表面的吸附，成为提高膜通量和选择性的有效手段。本文介绍了在非常灵活的条件下，使用邻氨基酚（2-AP）改性剂和漆酶生物催化剂对聚醚砜（PES）膜进行成功的绿色改性。使用包括总颜色变化、纯水通量和与重量接枝产率相关的蛋白质排斥性等多种技术对改性后的PES膜进行了评估。此外，还测定了层压PES层上的静态水接触角。通过扫描电子显微镜（SEM）和扫描探针显微镜（SPM）对空白和改性商业膜（表面和横截面）以及层压PES层（表面）进行成像，以说明形成的改性聚（2-氨基酚）层。这种绿色改性使膜通量和蛋白质排斥性分别相对于空白膜提高了15.4%和81.27%。