Millisecond timescale reactions observed via X-ray spectroscopy in a 3D microfabricated fused silica mixer.

ABSTRACT: Determination of electronic structures during chemical reactions remains challenging in studies which involve reactions in the millisecond timescale, toxic chemicals, and/or anaerobic conditions. In this study, a three-dimensionally (3D) microfabricated microfluidic mixer platform that is compatible with time-resolved X-ray absorption and emission spectroscopy (XAS and XES, respectively) is presented. This platform, to initiate reactions and study their progression, mixes a high flow rate (0.50-1.5 ml min^-1) sheath stream with a low-flow-rate (5-90 µl min^-1) sample stream within a monolithic fused silica chip. The chip geometry enables hydrodynamic focusing of the sample stream in 3D and sample widths as small as 5 µm. The chip is also connected to a polyimide capilla

SUBMITTER: Huyke DA 

PROVIDER: S-EPMC8284405 | biostudies-literature | 2021 Jul

REPOSITORIES: biostudies-literature