Cosmax, Inc.

Korea Advanced Institute of Science and Technology

Ji Hui Jang

Jun Bae Lee

Su Ji Kim

Youn Joon Kim

Myeong Sam Park

Yoon Sung Nam

Sung Yun Hong

Kweon Jong Yoo

Min Joo Noh

Ho Yeon Son

Hui Yun Hwang

Jun Hyeok Ahn

Myeong-Sam Park

Sang Gyun Hwang

Eun Seon Jang

Provided is a piezoelectric property measuring apparatus for a liquid or viscous material. The piezoelectric property measuring apparatus includes a fixing jig having an inner space and an opened space; an operating jig configured to close the opened region of the inner space; a first electrode and a second electrode; a driving module moving the operating jig according to a driving signal; a motion information measuring module measuring motion information of the operating jig; a charge amount measuring module measuring the charge amount through the first electrode and the second electrode; and a control module generating the driving signal for the driving module, supplying the driving signal to the driving module, receiving the motion information, receiving charge amount information of the closed space, and measuring a piezoelectric property of the sample by using the motion information and the charge amount information.

Piezoelectric property measuring apparatus for liquid or viscous material

A method of preparing a vesicle for skin absorption enhancement, a vesicle prepared using the method, and a cosmetic composition including the vesicle are provided. The vesicle preparation method may provide a skin absorption enhancement effect and may be used to prepare vesicles with improved formulation stability. The vesicle prepared using the method may be safe without skin irritation and have an improved skin absorption effect due to the use of a ceramide as a skin absorption enhancer, and may have improved formulation stability due to use of a nonionic surfactant and a phospholipid. Accordingly, the vesicle may be used in cosmetic compositions for enhancing skin absorption of bioactive ingredients such as functional ingredients.

Vesicle for enhancing skin absorption, and method of preparing the same

The present invention provides a method for preparing porous organic/inorganic composite powder which includes attaching inorganic oxide nanoparticles in a multi-layer form by repeating steps of attaching polyphenol to porous polymethyl methacrylate (PMMA) microspheres and attaching inorganic oxide nanoparticles to the porous polymethyl methacrylate (PMMA) microspheres to which polyphenol is attached, and a cosmetic composition including the porous organic/inorganic composite powder.

Open porous organic-inorganic composite powder, method for preparing same, and cosmetic composition containing same

Growing community of inventors

Hanam-si, South Korea

Ji Hui Jang