<br>受贻贝启发的阳离子−π相互作用：湿粘附和仿生材料,Langmuir

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受贻贝启发的阳离子−π相互作用：湿粘附和仿生材料
Langmuir ( IF 3.7 ) Pub Date : 2023-12-01 , DOI: 10.1021/acs.langmuir.3c02818
Jingsi Chen ₁ , Qiongyao Peng ₁ , Jifang Liu ₂ , Hongbo Zeng ₁

Affiliation

阳离子-π相互作用是生物系统中最重要的非共价相互作用之一，已被证明在贻贝的强粘附中发挥着重要作用。除了众所周知的儿茶酚氨基酸、 1-3,4-二羟基苯丙氨酸外，贻贝足蛋白还富含各种芳香族部分（例如酪氨酸、苯丙氨酸和色氨酸）和阳离子残基（例如赖氨酸、精氨酸和组氨酸）），有利于一系列强度可调的短程阳离子-π相互作用，可作为开发高性能水下粘合剂的原型。这项工作强调了我们在理解和利用水下粘合剂中的阳离子-π相互作用方面的最新进展，重点关注三个方面：（1）通过力测量技术研究贻贝足蛋白中的阳离子-π相互作用机制；（2）随着阳离子、阴离子和芳香基团的变化，模拟贻贝聚合物中阳离子-π相互作用的调节； (3) 基于这些揭示的原理设计湿粘合剂，从而产生具有生物医学和工程应用的薄膜、凝聚层和水凝胶形式的功能材料。这篇综述为基于阳离子-π相互作用的智能材料的开发和优化提供了宝贵的见解。

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Mussel-Inspired Cation−π Interactions: Wet Adhesion and Biomimetic Materials

Cation−π interaction is one of the most important noncovalent interactions identified in biosystems, which has been proven to play an essential role in the strong adhesion of marine mussels. In addition to the well-known catecholic amino acid, l-3,4-dihydroxyphenylalanine, mussel foot proteins are rich in various aromatic moieties (e.g., tyrosine, phenylalanine, and tryptophan) and cationic residues (e.g., lysine, arginine, and histidine), which favor a series of short-range cation−π interactions with adjustable strengths, serving as a prototype for the development of high-performance underwater adhesives. This work highlights our recent advances in understanding and utilizing cation−π interactions in underwater adhesives, focusing on three aspects: (1) the investigation of the cation−π interaction mechanisms in mussel foot proteins via force-measuring techniques; (2) the modulation of cation−π interactions in mussel mimetic polymers with the variation of cations, anions, and aromatic groups; (3) the design of wet adhesives based on these revealed principles, leading to functional materials in the form of films, coacervates, and hydrogels with biomedical and engineering applications. This review provides valuable insights into the development and optimization of smart materials based on cation−π interactions.

更新日期：2023-12-01

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