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Effects of Edge Activator on the Droplet Size and Skin Permeation of Hydrated Liquid Crystalline Vesicles

Edge Activator가 수화 액정형 베시클의 입자크기와 피부 침투에 미치는 영향

  • Received : 2017.08.03
  • Accepted : 2017.10.10
  • Published : 2017.12.10

Abstract

Hydrated liquid crystalline vesicles incorporating a edge activator, which confers flexibility to the vesicle membranes, were prepared and niacinamide was encapsulated in them. The formation of liquid crystalline phases and their thermal phase transitions were investigated by polarized optical microscopy and differential scanning calorimetry (DSC), respectively. Droplet sizes of the vesicles were reduced to several tens of nanometers by incorporating edge activators, such as sodium deoxycholate, lysolecithin, or polysorbate 80. The amount of niacinamide permeated into a pig skin increased greatly using the hydrated liquid crystalline vesicles compared to the case where niacinamide was applied in an aqueous solution state. The vesicles incorporating 10% sodium deoxycholate increased the amount of niacinamide permeated nearly four times. These results suggest that edge activators are effective in improving the skin permeability of vesicles.

Keywords

edge activator;hydrated liquid crystalline vesicle;niacinamide;skin permeation

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Acknowledgement

Supported by : 동덕여자대학교