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Tough and Transparent Supramolecular Cross‐Linked Co‐Assembled Silk Fibroin Films for Passive Radiative Cooling.
- Source :
-
Advanced Functional Materials . Jun2024, p1. 10p. 8 Illustrations. - Publication Year :
- 2024
-
Abstract
- Silk fibroin (SF) is a natural biomaterial from silk, which has outstanding biocompatibility. However, regeneration SF materials usually suffer from brittleness, which restricts their applications. Here, a novel supramolecular co‐assembly strategy is reported for the preparation of a Bolas‐shaped polyethylene glycol peptide (BPP)/SF film, where the peptide and SF form a robust payload co‐assembled network and polyethylene glycol (PEG) fragments form supramolecular cross‐linking in this network. The obtained BPP/SF film shows both high stress (27.8 MPa), high toughness (3.64 MJ m−3), high transparency (89%), and high mid‐infrared (MIR) emissivity (90.5%). In passive radiative cooling, the BPP/SF film results in a 2.7 °C reduction in the temperature of the human arm skin and a 14.6 °C reduction in the temperature of the solar cell. More importantly, this novel BPP co‐assembly SF material can be recycled and reused while maintaining its original mechanical strength. This work provides a novel strategy for fabricating regenerative SF materials with ultra‐strong and ultra‐tough mechanical performance. [ABSTRACT FROM AUTHOR]
- Subjects :
- *SILK fibroin
*COOLING
*POLYETHYLENE glycol
*SOLAR temperature
*PEPTIDES
Subjects
Details
- Language :
- English
- ISSN :
- 1616301X
- Database :
- Academic Search Index
- Journal :
- Advanced Functional Materials
- Publication Type :
- Academic Journal
- Accession number :
- 177981886
- Full Text :
- https://doi.org/10.1002/adfm.202406920