Durable Janus membrane with on-demand mode switching fabricated by femtosecond laser.

ABSTRACT: Despite their notable unidirectional water transport capabilities, Janus membranes are commonly challenged by the fragility of their chemical coatings and the clogging of open microchannels. Here, an on-demand mode-switching strategy is presented to consider the Janus functionality and mechanical durability separately and implement them by simply stretching and releasing the membrane. The stretching Janus mode facilitates unidirectional liquid flow through the hydrophilic micropores-microgrooves channels (PG channels) fabricated by femtosecond laser. The releasing protection mode is designed for the in-situ closure of the PG channels upon encountering external abrasion and impact. The protection mode imparts the Janus membrane robustness to reserve water unidirectional penetration under ha

SUBMITTER: Cui Z 

PROVIDER: S-EPMC10873403 | biostudies-literature | 2024 Feb

REPOSITORIES: biostudies-literature