| Title | Metal Ion-Coordinated Biomolecular Noncovalent Glass with Ceramic-like Mechanics |
|---|---|
| ID_Doc | 9262 |
| Authors | Cao, S; Fan, W; Chang, R; Yuan, CQ; Yan, XH |
| Title | Metal Ion-Coordinated Biomolecular Noncovalent Glass with Ceramic-like Mechanics |
| Year | 2024 |
| Published | |
| Abstract | 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. |
| https://doi.org/10.31635/ccschem.024.202303832 |
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