Fluidics articles from across Nature Portfolio

Ionic flow through ångström-scale channels facilitates selectivity beyond steric effects between ions of same charge and hydrated diameter. Here, with two-dimensional channels, the authors show that ion position in the channel influences selectivity.

Nanochannels in laminated graphene oxide nanosheets featuring confined mass transport have attracted interest in multiple research fields. As an important aspect for efficient pressure-driven membrane processes, authors investigate the response and deformation behaviours of such nanochannels to different external conditions.

While porous graphene oxide with nm-sized pores can be of great interest to biofluidic and energy storage applications, achieving precisely controlled porosity remains a technical challenge. Here, the authors exploit swift heavy ions to create uniform nanoholes and ultralong straight nanochannels in GO films.

Treating acute disease like anaphylaxis is challenging due to the inability to administer therapeutics in a timely manner and regulate pharmacokinetics precisely within a short time window. Here the authors develop active acoustic metamaterials-driven transdermal drug delivery for rapid and on-demand acute disease management.

Making microfluidic chips using 3D printers allows rapid fabrication of ready-to-use products from digital 3D designs with minimal human intervention. This ‘print–pause–print’ protocol describes how to make transparent, multimaterial chips.