Microfluidic Mixing Triggered by an External LED Illumination

• DOI: 10.1021/ja311837r
• Publication Date: 2013-01-25T17:10:32Z
• Authors: Anna Venancio-Mar...; Fanny Barbaud; Damien Baigl
• Keywords: Homogenization

The mixing of confined liquids is a central yet challenging operation in miniaturized devices. Microfluidic usually achieved with passive mixers that are robust but poorly flexible, or active offer dynamic control mainly rely on electrical mechanical transducers, which increase the fragility, cost, and complexity device. Here, we describe first remote reversible microfluidic triggered by light illumination simply provided an external LED approach based light-induced generation water microdroplets acting as stirrers two continuous oil phase flows containing samples to be mixed. We demonstrate many cycles photoinduced transitions between nonmixing behavior full homogenization phases. method cheap, portable, adaptable device configurations, thus constituting essential brick for future all-optofluidic chip.