Metal Ion-Coordinated Biomolecular Noncovalent Glass with Ceramic-like Mechanics  

作　　者：Shuai Cao Wei Fan Rui Chang Chengqian Yuan Xuehai Yan 

机构地区：[1]State Key Laboratory of Biochemical Engineering,Key Laboratory of Biopharmaceutical Preparation and Delivery,Institute of Process Engineering,Chinese Academy of Sciences,Beijing 100190 [2]School of Chemical Engineering,University of Chinese Academy of Sciences,Beijing 100049 [3]Center for Mesoscience,Institute of Process Engineering,Chinese Academy of Sciences,Beijing 100190

出　　处：《CCS Chemistry》2024年第11期2814-2824,共11页中国化学会会刊（英文）

基　　金：financially supported by the National Science Fund for Distinguished Young Scholars of China(grant no.22025207);the National Natural Science Foundation of China(grant nos.22172172,22372174,and 22232006);the Youth Innovation Promotion Association of Chinese Academy of Sciences(grant no.2022049);the Institute of Process Engineering Project for Frontier Basic Research(grant no.QYJC-2022-011).

摘　　要：Glass materials play a vital role in scientific research and engineering applications.Biomolecular noncovalent glasses(BNG),based on amino acids and peptides,have been proposed as the next-generation glass materials to meet the demand of a sustainability and circular economy.However,bulk BNG with remarkable mechanics and tunable photoluminescence are still rare due to the nature of weak noncovalent interactions and oversimplified molecular structures.Herein,we report the design and creation of metal ion-coordinated BNG(MIBNG)based on a simple amino acid derivative and metal ions.The obtained MIBNG exhibit ceramic-like mechanics,including the hardness,elasticity,and wear resistance,that are unattainable by the pure BNG counterpart.Such remarkable mechanics can be attributed to the enhanced noncovalent crosslinking network connectivity of biomolecules within MIBNG resulting from the incorporation of strong metal coordination interaction with hydrogen bonding and aromatic interactions.Moreover,fluorescence emission of MIBNG can be tuned feasibly through precisely modulating the types of metal ions coordinated.This study sheds light on the crucial role of multiple noncovalent interactions in the construction of BNG and advances the exploration and potential applications of BNG-based functional materials with tunable mechanical and optical properties in such fields as electronics and optics.

关 键 词：biomolecular glass metal ions amino acids noncovalent interactions mechanical properties 

分 类 号：O62[理学—有机化学]