TY - JOUR
T1 - Trace Material Capture by Controlled Liquid Droplets on a Superhydrophobic/Hydrophilic Surface
AU - Fukada, Kenta
AU - Kawamura, Naoya
AU - Shiratori, Seimei
N1 - Funding Information:
We are deeply grateful to Prof. Daniel Citterio, Dr. Yuki Hiruta, Dr. Yoshio Hotta, Dr. Kouji Fujimoto, Dr. Kyu-Hong Kyung, Mr. Taichi Nakashima, Mr. Yuki Tokura, and Ms. Yukari Moriyama, whose insightful comments and suggestions were of inestimable value for our study. HPLC measurement was supported by Dr. Yuki Hiruta. A part of this research was supported by SENTAN from the Japan Science and Technology Agency (JST).
Publisher Copyright:
© 2017 American Chemical Society.
PY - 2017/10/3
Y1 - 2017/10/3
N2 - A liquid droplet in contact with a superhydrophobic surface can be used to collect dissolved trace materials after evaporating the solvent. This process effect enhances detection limits, but a liquid droplet easily rolls off a superhydrophobic surface. Keeping it at a specific collecting spot area is challenging. Here the means for controlling and capturing a liquid droplet on a superhydrophobic surface is demonstrated. To induce a liquid droplet to a collecting spot, its rolling direction was controlled by two superhydrophobic fabric guides. The liquid droplet was then captured by hydrophilic polymer and hydrophilic nanoparticles at the measuring spot. After removing the solvent, the trace compounds were evaluated with a colorimetric analysis visible to the naked eye.
AB - A liquid droplet in contact with a superhydrophobic surface can be used to collect dissolved trace materials after evaporating the solvent. This process effect enhances detection limits, but a liquid droplet easily rolls off a superhydrophobic surface. Keeping it at a specific collecting spot area is challenging. Here the means for controlling and capturing a liquid droplet on a superhydrophobic surface is demonstrated. To induce a liquid droplet to a collecting spot, its rolling direction was controlled by two superhydrophobic fabric guides. The liquid droplet was then captured by hydrophilic polymer and hydrophilic nanoparticles at the measuring spot. After removing the solvent, the trace compounds were evaluated with a colorimetric analysis visible to the naked eye.
UR - http://www.scopus.com/inward/record.url?scp=85030657161&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85030657161&partnerID=8YFLogxK
U2 - 10.1021/acs.analchem.7b02369
DO - 10.1021/acs.analchem.7b02369
M3 - Article
C2 - 28872848
AN - SCOPUS:85030657161
VL - 89
SP - 10391
EP - 10396
JO - Analytical Chemistry
JF - Analytical Chemistry
SN - 0003-2700
IS - 19
ER -