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Study on Skin Permeation of Tocopheryl Acetate Using Swollen Micelle
손수빈,윤경섭 사단법인 대한화장품학회 2023 대한화장품학회지 Vol.49 No.1
A study was performed to increase skin permeation of tocopheryl acetate, an oil-soluble component among tocopheryl acetate, salicylic acid, and niacinamide, which are the active ingredients of the anti-hair loss toner. As a method of transparently solubilizing tocopheryl acetate while containing salicyl acid and niacinamide, we used a swollen micelle structure that increased the size of the micelle formed by the aggregation of surfactants. The prepared swollen micelle solution contains three kinds of active ingredients, and poloxamer 407 and octyldodeceth-16 were used as surfactants to increase transparent properties and stability. In addition, isostearic acid was used as a co-surfactant to increase the size of micelles. To evaluate the physical properties of the prepared swollen micelles, turbidity at room temperature (25 ℃) was measured. The Franz diffusion cell method was used to evaluate the skin permeation rate of tocopheryl acetate among the hair-loss prevention components contained in swollen micelles. After 24 h, tocopheryl acetate showed a 6-fold improvement in skin permeation compared to the control group. Therefore, it can be seen that the swollen micelles developed in this study can be applied to hair-loss prevention products or solubilized formulations of various functional cosmetics.
일제 치하 한국 기독교계 독립선언문에 나타나는 “민족” 개념 탐구
손수빈 ( Son Soobeen ) 한국종교학연구회 2023 宗敎學硏究 Vol.41 No.-
Japanese colonial rule, which began after the unification of Korea and Japan in 1910, destroyed the spiritual and systematic foundations that defined Korean identity and encompassed all dimensions of life. In this situation, Koreans needed new systematic and spiritual principles of social unity to rewrite their identity and bind them together, principles that would serve as the basis for resisting and transcending the absolutized state power of modern Japan. At the core of that principle was a newly imagined concept of nation. This paper examines the function of Korean Christianity in helping Koreans under Japanese rule to envision this new nation. In this regard, it compares the logical structure of the ideology of the emperor in modern Japan with the logical structure of the newly reimagined concept of nation in the early Korean Christian independence movement through the lens of Robert N. Bellah's concept of civil religion. According to this study, the concept of nation envisioned by Korean Christians in response to the national self-worship in modern imperial Japan is a nation that practices self-transcendent submission to transcendent moral ideals and ethical principles. This was a kind of prophetic civil religion that served to unify Koreans at the time.