Microfluidic synthesis and on-chip enrichment application of two-dimensional hollow sandwich-like mesoporous silica nanosheet with water ripple-like surface

JOURNAL OF COLLOID AND INTERFACE SCIENCE

卷:539

Article

Hao, Nanjing¹  Nie, Yuan¹  Closson, Andrew B.¹  Zhang, John X. J.¹ 

[1] Dartmouth Coll, Thayer Sch Engn, 14 Engn Dr, Hanover, NH 03755 USA

关键词: Microfluidics;    Two-dimensional;    Microreactor;    Nanosheet;    Surface pattern;   

DOI  :  10.1016/j.jcis.2018.12.040

来源: Elsevier

【 摘 要 】

The merits of microfluidics bring new opportunities for engineering of nanomaterials with well controlled chemical, physical and biological properties for a variety of applications. Herein, using a tworun spiral-shaped microfluidic device, we first develop a facile and straightforward flow synthesis strategy to create two-dimensional mesoporous silica nanosheet (MSN). Such MSN exhibits typical hollow sandwich-like bilayer and unique water ripple-like wrinkle surface, which greatly increase the particulate accessibility for mass transfer. The enhanced on-chip enrichment performance of MSN is further confirmed toward different substrates (dye, protein, drug). These findings not only shed new light on microfluidics-enabled chemicals engineering, but also open up numerous new possibilities by microfluidics in adsorption, separation, and biomedical fields. (C) 2018 Elsevier Inc. All rights reserved.

【 授权许可】

Free