검색연산자 | 기능 | 검색시 예 |
---|---|---|
() | 우선순위가 가장 높은 연산자 | 예1) (나노 (기계 | machine)) |
공백 | 두 개의 검색어(식)을 모두 포함하고 있는 문서 검색 | 예1) (나노 기계) 예2) 나노 장영실 |
| | 두 개의 검색어(식) 중 하나 이상 포함하고 있는 문서 검색 | 예1) (줄기세포 | 면역) 예2) 줄기세포 | 장영실 |
! | NOT 이후에 있는 검색어가 포함된 문서는 제외 | 예1) (황금 !백금) 예2) !image |
* | 검색어의 *란에 0개 이상의 임의의 문자가 포함된 문서 검색 | 예) semi* |
"" | 따옴표 내의 구문과 완전히 일치하는 문서만 검색 | 예) "Transform and Quantization" |
To formulate the topical analgesic preparation of a new capsaicin derivative, DA-5018, a skin penetration evaluation system was established and the effect of composition of formulation on skin penetration using this system was evaluated, The effect of massage on hairless mouse skin penetration and inter-day variation of this effect were investigated using test formulations(cream). In massage group, compared with non-massage group, absolute penetration amount of DA-5018 increased and this experimental system was found to be reproducible, The effects of pH of water phase, ratio of oil/water and the concentration of active ingredient in cream on skin penetration were investigated. The permeation of DA-5018 from the cream increased with increasing pH of water phase to 9. But at pH 10, the permeation of DA-5018 decreased, because of the physical instability of the cream. The permeation of DA-5018 from the cream increased with increasing the ratio of oil/water of the cream. The increase of the content of DA-5018 to 0.3% increased the permeation of DA-5018, but at high concentration(1.0%), the permeation of DA5018 decreased, due to the instability of the cream.
#Capsaicin derivative #Topical analgesic preparation #Formulation #Skin penetration #Inter-day variation #pH #Ratio of oil/water
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