Hee Jung Yang
Seoul National University
Analytical chemistryDrop (liquid)ChemistryPulmonary surfactantOstwald ripening
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Publications 3
#1Hee Jung Yang (SNU: Seoul National University)H-Index: 1
#2Wan Goo Cho (Jeonju University)H-Index: 2
Last. Soo Nam Park (SNU: Seoul National University)H-Index: 1
view all 3 authors...
Abstract The stability of isopropylmyristate-in-water nano-emulsions stabilized by PEG-60 hydrogenated caster oil varied ethanol concentrations using phase composition inversion method at room temperature was investigated. Nano-emulsions with droplet sizes below 200 nm were formed above the critical micelle concentration of surfactant. In order to investigate the effect of ethanol on nano-emulsions, time dependence of the droplet distribution was monitored at room temperature using light scatter...
34 CitationsSource
#1Wan Goo ChoH-Index: 2
#2Hee Jung YangH-Index: 1
Last. Soo Nam Park (Seoul National University of Science and Technology)H-Index: 13
view all 3 authors...
Formation of oil-in-water nano-emulsions has been studied in oil/hydrogenated lecithin/water systems by two shear different instrument. The influence of surfactant concentration on nano-emulsion droplet size and stability has been studied. Droplet size was determined by dynamic light scattering, and nano-emulsion stability was evaluated by measuring the variation of droplet size as a function of time. The results obtained showed that the breakdown process of nano-emulsions studied could be attri...
#1Hee Jung YangH-Index: 1
#2Soo Nam Park (Seoul National University of Science and Technology)H-Index: 13
In this study, we investigated the anti-oxidative, anti-wrinkle and whitening effects of Platycarya strobilacea bark extracts. The free radical (1,1-diphenyl-2-picrylhydrazyl, DPPH) scavenging activity () of extract / fractions of Platycarya strobilacea was in the order: 50% ethanol extract () ) ). Reactive oxygen species (ROS) scavenging activities () of some Platycarya strobilacea extracts on ROS generated in -EDTA/ system were investigated using the luminol-dependent chemiluminescence assay. ...