TY - JOUR
T1 - Optical Surface Tension Measurement of Two-Dimensionally Confined Liquid Surfaces
AU - Chung, Myungwha
AU - Pigot, Christian
AU - Volz, Sebastian
AU - Hibara, Akihide
N1 - Publisher Copyright:
© 2017 American Chemical Society.
PY - 2017/8/1
Y1 - 2017/8/1
N2 - Surface tension measurement based on spontaneous capillary wave resonance in confined micrometer-sized liquid interfaces was demonstrated. A single-beam quasi-elastic laser scattering method was used to detect the resonance. Characteristic resonant modes were observed on a 44-μm-sized circular water surface. The frequencies of the peaks agreed well with those simulated by assuming planar resonance, and the relationship was further confirmed for triangular, square, and pentagonal water surfaces. Then, the applicability of the method was successfully demonstrated by surface tension measurements of aqueous solutions of sodium dodecyl sulfate. The sensitive detection of capillary resonance opens new possibilities for the chemical and biochemical analysis of liquid interfaces.
AB - Surface tension measurement based on spontaneous capillary wave resonance in confined micrometer-sized liquid interfaces was demonstrated. A single-beam quasi-elastic laser scattering method was used to detect the resonance. Characteristic resonant modes were observed on a 44-μm-sized circular water surface. The frequencies of the peaks agreed well with those simulated by assuming planar resonance, and the relationship was further confirmed for triangular, square, and pentagonal water surfaces. Then, the applicability of the method was successfully demonstrated by surface tension measurements of aqueous solutions of sodium dodecyl sulfate. The sensitive detection of capillary resonance opens new possibilities for the chemical and biochemical analysis of liquid interfaces.
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U2 - 10.1021/acs.analchem.7b01611
DO - 10.1021/acs.analchem.7b01611
M3 - Article
C2 - 28704036
AN - SCOPUS:85026633890
SN - 0003-2700
VL - 89
SP - 8092
EP - 8096
JO - Analytical Chemistry
JF - Analytical Chemistry
IS - 15
ER -