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High-entropy non-covalent cyclic peptide glass.
Chengqian Yuan1, Wei Fan1, Peng Zhou1
1State Key Laboratory of Biochemical Engineering, Key Laboratory of Biopharmaceutical Preparation and Delivery, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, China.
Nature Nanotechnology
|August 26, 2024
Summary
Researchers developed high-entropy cyclic peptide (CP) glasses, a sustainable alternative to traditional glass. These novel biomolecule-based glasses exhibit enhanced properties and unique biorecycling capabilities, overcoming CP crystallization challenges.
Area of Science:
- Materials Science
- Biomaterials Engineering
- Polymer Chemistry
Background:
- Biomolecule-based non-covalent glasses offer biocompatibility and biodegradability, presenting sustainable alternatives to conventional glass.
- Cyclic peptides (CPs) possess structural rigidity and enzymatic resistance, making them suitable glass formers, but their tendency to crystallize limits their application.
- Developing stable, non-crystalline biomolecular glasses is crucial for advancing sustainable materials.
Purpose of the Study:
- To engineer cyclic peptide (CP) glasses with tunable properties by controlling conformational complexity.
- To overcome the crystallization tendency of CPs through the formation of high-entropy CP glass.
- To investigate the mechanical properties, enzyme tolerance, and biorecycling capabilities of the engineered CP glasses.
Main Methods:
- Modulating the conformational complexity of CP clusters to engineer CP glasses with tunable glass transition behaviors.
- Incorporating multicomponent CPs to facilitate the formation of high-entropy CP glass, thereby inhibiting individual CP crystallization.
- Evaluating mechanical properties, enzyme tolerance, and biorecycling potential of the developed high-entropy CP glass.
Main Results:
- Engineered CP glasses with tunable glass transition behaviors were successfully developed.
- High-entropy CP glass formation was facilitated by incorporating multicomponent CPs, effectively inhibiting crystallization.
- The high-entropy CP glass exhibited enhanced mechanical properties, superior enzyme tolerance, and unique biorecycling capabilities compared to individual CP glass and traditional glasses.
Conclusions:
- The study presents a novel paradigm for designing stable non-covalent glasses from naturally derived biomolecules.
- High-entropy CP glass engineering effectively addresses the crystallization challenge, leading to improved material performance.
- These biomolecule-based glasses hold significant promise for applications in pharmaceutical formulations and smart functional materials.
