Journal
MATERIALS RESEARCH LETTERS
Volume 5, Issue 8, Pages 584-590Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/21663831.2017.1376720
Keywords
Microfluidics; self-template; anisotropic; hollow; silica
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Funding
- NIH Director's Transformative Research Award [R01HL137157]
- National Science Foundation [ECCS 1128677, 1309686, 1509369]
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Herein, a facile strategy was firstly developed to synthesize ellipsoidal mesoporous silica nanomaterials (MSNs) with well-ordered parallel channels along the short axis. A miniaturized microfluidic device with spiral-shaped channels was then chosen as a straightforward and general platform to produce the corresponding hollow counterparts of MSNs under mild conditions. Such reaction process carried out in a microfluidic system was further demonstrated to be more rapid and efficient than a conventional batch method under equivalent experimental conditions. The evolution of hollow structure can be well tuned by flow rates (i.e. etching time), providing a new paradigm for rational design and engineering of anisotropic nanostructures. [GRAPHICS] .
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