Journal
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 136, Issue 20, Pages 7205-7208Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ja5019354
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Funding
- LABEX WIFI (Laboratory of Excellence) [ANR-10-LABX-24, ANR-10- IDEX-0001-02 PSL*]
- Institut Pierre-Gilles de Gennes pour la microfluidique
- Fondation Pierre-Gilles de Gennes
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Achieving high spatial and temporal control over a spontaneous reaction is a particularly challenging task with potential breakthroughs in various fields of research including surface patterning and drug delivery. We report here an exceptionally effective method that allows attaining such control. This method relies on a remotely triggered ultrasound-induced release of a reactant encapsulated in a composite microdroplet of liquid perfluorohexane. More specifically, the demonstration was achieved by locally applying a focused 2.25 MHz transducer onto a microfluidic channel in which were injected composite microdroplets containing a solution of an azidocoumarin and an external flow containing a reactive alkyne.
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