期刊
CHEMICAL ENGINEERING JOURNAL
卷 337, 期 -, 页码 122-132出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.cej.2017.12.057
关键词
Tannic acid; Zwitterionic polymer; Antifouling; Universal approach
资金
- National Natural Science Foundation of China [51503125, 51673125, 51773127]
- State Key Research Development Programme of China [2016YFC1103000, 2016YFC1103001]
- Program for Changjiang Scholars and Innovative Research Team in University [IRT_15R48]
- State Key Laboratory of Polymer Materials Engineering [sklpme2017-3-07]
- Youth Science and Technology Innovation Team of Sichuan Province [2015TD0001]
A facile and versatile strategy towards antifouling surfaces is an emerging area of huge potential and with an increasing scientific interest. Herein, a universal approach for fabricating antifouling surfaces was developed based on tannic acid (TA) and a novel reactive zwitterionic polymer. Firstly, a thin layer was formed on polyethersulfone (PES) membranes surface with TA molecules via multivalent anchoring sites in few minutes. Subsequently, a reactive zwitterionic polymer (for the first time reported based on quaternization of PEI) was post-crosslinked on the layer via a convenient dip-coating process at room temperature. The as-prepared surface exhibited excellent hydrophilicity confirmed by water contact angle, and its electrically neutral property was affirmed by zeta potential measurement. The surface displayed prominent antifouling efficacy which was evaluated by proteins adsorption, bacteria attachment and platelets adhesion. Meanwhile, after the post-crosslinking, the stability of the surface was significantly enhanced in either acidic or alkaline condition compared with original TA-coated surface. Benefiting from the universal profile, easy operation and low cost of the TA assembly process, as well as the excellent antifouling ability of the zwitterionic polymer, the proposed strategy provided a universal route in design of antifouling surfaces used in biomedical fields.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据