Electro-manipulating of negative-charged aramid nanofibers towards micro-to-macro scale colloidal aerogel films.

ABSTRACT: Aerogels, often hailed as the world-changing magic nanoporous material, are traditionally synthesized through reagent-induced sol-gel transitions. However, the uncontrolled random motion of molecular/colloidal precursors poses significant challenges in achieving precise structural control of aerogel. In this study, we present an unprecedented electro-manipulation strategy, easy to be applied in batch-run as well as roll-to-roll processes, to engineer well-defined micro-/macro-structured aerogel films. By leveraging electrophoresis-driven self-assembly and electrochemistry-driven gelation of negatively charged aramid nanofibers in sequence, we demonstrate large-area (50 cm × 50 cm) as well as continuous (up to 20 meters in length) fabrications of aramid colloidal aerogel films with patterne

SUBMITTER: Li L 

PROVIDER: S-EPMC12484658 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature