Preparation and fluorescence detection properties of ZnO nanostructure based on microdroplets

doi:10.3969/j.issn.1000-5641.201933001

Abstract

Abstract: In this paper, we discuss ZnO nanostructures synthesized by a hydrothermal method in a droplet microreactor. The microfluidic chip used integrates a multi-function unit that includes a T-channel for droplet formation, a Y-channel for droplet fusion, and an S-channel for rapid mixing and observation of the nanoparticle formation process. By adjusting the flow rates of the aqueous phase and the oil phase, we studied the morphology and size of droplets; fluorescence detection of the ZnO nanostructure synthesized, moreover, was evaluated by an FITC-labeled goat anti-bovine IgG. This work shows that ZnO nanostructures can be prepared by fluid dynamic coupling of droplets and that the morphology and size of the nanostructures vary with droplet size. When the flow rates of the oil phase, ammonia water, and ferric solution were 600, 30, and 90 μL/h, respectively, the ZnO nanostructure synthesized at 75 ℃ showed optimal fluorescence detection performance.

Key words: microfluidic chip, droplet, ZnO nanostructure, fluorescence detection

CLC Number:

O611

HUANG Binbing, XIE Yan, XIE Wenhui, ZHAO Zhenjie, LI Xin. Preparation and fluorescence detection properties of ZnO nanostructure based on microdroplets[J]. Journal of East China Normal University(Natural Science), 2020, 2020(2): 131-139.

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