Microarrays formed by microfluidic spinning as multidimensional microreactors.
Angew Chem Int Ed Engl
; 53(15): 3988-92, 2014 Apr 07.
Article
em En
| MEDLINE
| ID: mdl-24595996
ABSTRACT
The exploration of methods allowing chemical reactions to be carried out at ultrasmall scales is of great scientific and technological interest. We report herein a microfluidic spinning technique for the fabrication of softened-polymer microarrays for use as multidimensional microreactors and the application of these microreactors in the synthesis of fluorescent nanocrystals. Highly aligned microarrays and controlled-angle grids were readily constructed from microfluidically spun polyvinylpyrrolidone (PVP) microfibers. One-zero dimensional (1D-0D), one-one dimensional (1D-1D), and one-two dimensional (1D-2D) microreactors were then produced by the intersections between microfibers and droplets, crossed microfibers, and microfibers and a PVP film, respectively; each component can be doped with different reagents. Specific examples show that these multidimensional microreactors enable the in situ generation of fluorescent nanocrystals without ligands within minutes.
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MEDLINE
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En
Ano de publicação:
2014
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Article