Abstract:
The present invention provides a silk hydrogel composition containing 0.01-30 wt% of a silk fibroin powder and 0.01-10 wt% of urea, and a method for manufacturing a silk hydrogel mask using the same. According to the present invention, the solubility of silk fibroin in a raw material is increased and the silk fibroin is gelled for a short period of time, thereby allowing a continuous process, and the silk hydrogel can be packaged immediately after being cut, thereby requiring no additional process and thus improving production safety and efficiency. Further, the silk hydrogel composition according to the present invention can control the moisture release rate while exhibiting excellent hardness and adhesive strength, reduce irritation as it is a silk material having high affinity with the human body, and be effective in maintaining the moisture content and the moisturizing capability, removing dead skin cells, brightening, and reducing redness, and thus can be used in a cosmetic mask.
Abstract:
An electroporation device according to an embodiment of the present invention comprises: multiple electrode pins touching skin to perforate the skin; a wiring board having a wiring pattern to transmit voltage to the multiple electrode pins; a voltage generating part generating the voltage transmitted to the multiple electrode pins through the wiring pattern of the wiring board; a controlling part controlling the polarity of the voltage transmitted to the multiple electrode pins to make any neighboring electrode pins among the multiple electrode pins have different polarities in every cycle; and a voltage compensating part measuring the resistance of the skin where the multiple electrode pins touch, and compensating the voltage level transmitted to the multiple electrode pins according to the resistance level. [Reference numerals] (110) Main body; (111) Power unit; (112) Voltage generating part; (113) Controlling part; (114) Operation display part; (115) Power display part; (116) Voltage compensating part; (120) Perforating part; (121) Wiring board; (122) Electrode pin; (123) Pin guide; (130) Piezo switch
Abstract:
The present invention relates to a nozzle device and a minimal invasive injection device comprising the same. The nozzle device for the minimal invasive injection device by an embodiment of the present invention includes: an outlet forming a liquid microjet; and a microsized inlet connected to the outlet to be inserted into the skin tissue to a predetermined depth.
Abstract:
PURPOSE: A method for manufacturing powder containing nanoparticles of insoluble drug is provided to maintain nanoscopic insoluble drug and enhance elusion rate and solubility of drug. CONSTITUTION: A method for manufacturing powder containing nanoparticles of insoluble drug comprises: a step of preparing homogenized dispersion solution of insoluble drug under the presence of surface stabilizer; a step of mixing homogenized dispersion agent and water soluble dispersion solution; and a step of drying mixture solution and collecting powder. The water soluble dispersion agent is gelatin, carrageenan, alginic acid, arabinoxylan, beta-glucan, guar gum, locust soybean gum, pectin, starch, casein, glucomannan, cyclodextrin, methylcellulose, chitosan, or gluten. A pharmaceutical composition contains powder containing nanoparticles of insoluble drug and pharmaceutically acceptable carrier.
Abstract:
A controlled-release preparation containing cilostazol is provided to improve absorption rate of cilostazol in small intestine and reduce side effects such as headache by staying in stomach for a long time and slowly releasing cilostazol, and enhance compliance of patient by reducing dosage frequency. A controlled-release preparation contains 10-80 wt.% of cilostazol or its pharmaceutically acceptable salt, 0.1-50 wt.% of solubilizer, 5-80 wt.% of swelling agent, 0.5-50 wt.% of swelling speed-controller and 0.1-50 wt.% of gas-generating material. A method for preparing the controlled-release preparation containing cilostazol comprises the steps of: mixing cilostazol or its pharmaceutically acceptable salt, solubilizer, swelling agent, swelling speed-controller and gas-generating material; granulating the mixture; and filling the granulates in capsules or tabletting the granulates.
Abstract:
본 발명은, 바닐로이드 수용체(Vanilloid Receptor1, VR1)에 대한 뛰어난 길항작용을 가지고 있으나 물에 난용성인 티오우레아 유도체 또는 약제학적으로 허용가능한 그의 염, 시클로덱스트린 또는 그의 유도체, 그리고, 임의적으로, 약제학적으로 허용되는 첨가제를 포함하는 약제학적 조성물에 관한 것이다. 본 발명의 약제학적 조성물은 티오우레아 유도체의 용해도 및 용출율이 크게 개선되어 매우 우수한 생체내이용률을 나타내었다. 따라서 바닐로이드 수용체에 대한 뛰어난 길항작용을 가지고 있는 티오우레아 유도체의 다양하고 효과적인 투여용 제제화가 가능하게 되었으며 이에 상기 화합물의 인체에 대한 적용이 더욱 현실적으로 실현가능하게 되어 그 유용성이 크게 기대된다.
Abstract:
PURPOSE: Provided is a controlled release preparation which minimizes the addition of a hydrophobic material, and prevents the surface adhesion of granules. The controlled release preparation continuously releases the drug content for 12 hours while maintaining the effective drug concentration in blood. CONSTITUTION: The controlled release preparation comprises 0.5-80wt.% of drug, 10-65wt.% of a hydrophobic release control additive, and 1-35wt.% of a hydrophobic wet granulating material. The drug is first melt-granulated using the hydrophobic release control additive, and the resulting granules are second wet-granulated using the hydrophobic wet granulating material.