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DOI10.1021/acsami.6b16363
Fabrication of Patterned Superhydrophobic/Hydrophilic Substrates by Laser Micromachining for Small Volume Deposition and Droplet Based Fluorescence
Bachus, K. J.1; Mats, L.1; Choi, H. W.1; Gibson, G. T. T.2; Oleschuk, R. D.1
通讯作者Oleschuk, R. D.
来源期刊ACS APPLIED MATERIALS & INTERFACES
ISSN1944-8244
出版年2017
卷号9期号:8页码:7629-7636
英文摘要

The deposition of nanoliter and subnanoliter volumes is important in chemical and biochemical droplet based microfluidic systems. There are several techniques that have been established for the deposition/generation of small volumes including the use of surfaces with patterned differences in wettability. Many such methods require complex and time-consuming lithographic techniques. Here, we present a facile method for the fabrication of superhydrophobic surfaces with patterned hydrophilic regions by laser micro machining. A comprehensive study of fabrication parameters (laser machining speed, laser power, and patch size) on the material, patch wettability, and droplet volume is presented. Patch sizes as small as 100 mu m diameter and as large as 1500 mu m diameter were investigated, and volumes as low as 400 pL were observed. As an example application of such patterned materials and the deposition of small volumes, halide salts were preconcentrated on the hydrophilic patches, and their fluorescence quenching constants were rapidly calculated using a 3D-printed device coupled to a fluorescence spectrometer.


英文关键词superhydrophobic materials superhydrophobic-hydrophilic patterned surfaces laser micromachining droplet microfluidics 3D-printed microfluidics fluorescence detection
类型Article
语种英语
国家Canada
收录类别SCI-E
WOS记录号WOS:000395494200108
WOS关键词CONTROLLABLE WATER ADHESION ; DESERT BEETLE ; SURFACES ; ARRAYS ; MICROWELLS ; COATINGS ; PAPER
WOS类目Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
WOS研究方向Science & Technology - Other Topics ; Materials Science
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/196938
作者单位1.Queens Univ, Dept Chem, Kingston, ON K7L 3N6, Canada;
2.CMC Microsyst, Innovat Pk, Kingston, ON K7L 0E9, Canada
推荐引用方式
GB/T 7714
Bachus, K. J.,Mats, L.,Choi, H. W.,et al. Fabrication of Patterned Superhydrophobic/Hydrophilic Substrates by Laser Micromachining for Small Volume Deposition and Droplet Based Fluorescence[J],2017,9(8):7629-7636.
APA Bachus, K. J.,Mats, L.,Choi, H. W.,Gibson, G. T. T.,&Oleschuk, R. D..(2017).Fabrication of Patterned Superhydrophobic/Hydrophilic Substrates by Laser Micromachining for Small Volume Deposition and Droplet Based Fluorescence.ACS APPLIED MATERIALS & INTERFACES,9(8),7629-7636.
MLA Bachus, K. J.,et al."Fabrication of Patterned Superhydrophobic/Hydrophilic Substrates by Laser Micromachining for Small Volume Deposition and Droplet Based Fluorescence".ACS APPLIED MATERIALS & INTERFACES 9.8(2017):7629-7636.
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