Aqueous amination of track-etched polycarbonate membranes for tuneable nanochannel surface charge density.

ABSTRACT: Track-etched polycarbonate (PC) membranes with nanochannels are versatile materials for electrochemical, energy-harvesting, and separation applications. Precise control over their surface charge is critical, as it governs ion selectivity, electroosmotic flow, and overall ionic transport behaviour in confined nanochannels. However, environmentally friendly and scalable strategies to precisely tune their surface charge remain limited. Amination is a practical approach for PC membrane functionalisation, as it introduces protonatable amine groups that enhance the positive surface charge and enable further chemical modifications via mild, aqueous reactions. Here, we report a simple aqueous amination method that enables systematic control of surface charge density in PC membranes between

SUBMITTER: Ashokan A 

PROVIDER: S-EPMC12681244 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature