Stereocomplexation-Enhanced Biomimetic Janus Poly(Lactic Acid) Metafabric for High-Power Passive Personal Cooling

ACS Applied Materials & Interfaces 2026

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Authors: Jie Li, Xinjian He, Yang Wu, Ming-Peng Zhuo, Xinyu Li, Cunmin Wang, Kunkun Tu, Jiefeng Gao, Huan Xu
DOI: 10.1021/acsami.6c04019
Cited by: 2
References: 45

Abstract

The development of biodegradable radiative cooling textiles that simultaneously deliver high solar reflectance, efficient sweat management, and long-term durability remains challenging. Here, we report a hierarchical Janus poly(lactic acid) (PLA) metafabric (J-PLA) enabled by molecular stereocomplexation and a plant-transpiration-inspired dual-gradient architecture. Stereocomplexation between poly( l -lactic acid) and poly( d -lactic acid) chains fundamentally enhanced the mechanical robustness and infrared vibrational intensity of the PLA matrix. Concurrently, a biomimetic dual-gradient structure, replicating the transpiration network of vascular plants, was constructed by electrospinning a hydrophilic stereocomplexed PLA/SiO 2 nanofiber layer onto a hydrophobic PLA microfiber substrate. This unique architecture enabled ultrafast directional water transport (

Fields of Study & Subjects

Thermal Radiation and Cooling Technologies Solar-Powered Water Purification Methods Radiative Heat Transfer Studies

Publication details

Journal / source
ACS Applied Materials & Interfaces
Publisher
American Chemical Society (ACS)
Volume
18
Issue
14
Pages
21120–21130
Publication date
30 March 2026
Language
EN