Covalent layer-by-layer films: chemistry, design, and multidisciplinary applications

Chemical Society Reviews
Qi AnFeng Shi

Abstract

Covalent layer-by-layer (LbL) assembly is a powerful method used to construct functional ultrathin films that enables nanoscopic structural precision, componential diversity, and flexible design. Compared with conventional LbL films built using multiple noncovalent interactions, LbL films prepared using covalent crosslinking offer the following distinctive characteristics: (i) enhanced film endurance or rigidity; (ii) improved componential diversity when uncharged species or small molecules are stably built into the films by forming covalent bonds; and (iii) increased structural diversity when covalent crosslinking is employed in componential, spacial, or temporal (labile bonds) selective manners. In this review, we document the chemical methods used to build covalent LbL films as well as the film properties and applications achievable using various film design strategies. We expect to translate the achievement in the discipline of chemistry (film-building methods) into readily available techniques for materials engineers and thus provide diverse functional material design protocols to address the energy, biomedical, and environmental challenges faced by the entire scientific community.

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Citations

Aug 8, 2019·Chemistry, an Asian Journal·Zhong-Qiu LiYu-Wu Zhong
Apr 15, 2020·Chemical Record : an Official Publication of the Chemical Society of Japan ... [et Al.]·Farzad SeidiChangsheng Zhao
Jun 15, 2019·Current Pharmaceutical Design·Junchao WeiLina Wang
Dec 2, 2020·Materials Science & Engineering. C, Materials for Biological Applications·Li LeiIlwoo Seok
Dec 21, 2020·Journal of Hazardous Materials·Xiaopeng PeiYongsheng Chen
Nov 19, 2020·Analytical Methods : Advancing Methods and Applications·Wenxiang XiaoZhencheng Chen
Apr 1, 2021·Drug Delivery·Xinyi ZhangQingming Ma
Oct 4, 2020·Advances in Colloid and Interface Science·Changwen ZhaoWantai Yang
Aug 5, 2021·Journal of the American Chemical Society·Jianxiong HanSi Wu
Sep 6, 2019·Langmuir : the ACS Journal of Surfaces and Colloids·Matthew J Feeney, Samuel W Thomas
Oct 20, 2018·ACS Applied Materials & Interfaces·Xiangming LiQi An
Sep 4, 2021·Langmuir : the ACS Journal of Surfaces and Colloids·Oyku YildirimkaramanÜmit Hakan Yıldız
Nov 18, 2021·ACS Applied Materials & Interfaces·Jialin ZhuangQi An

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Methods Mentioned

BETA
thermal treatment
electrophoresis
AFM
biosensors
transfection
PMA

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