| Project/Area Number |
23750217
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Functional materials/Devices
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| Research Institution | The University of Tokushima |
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Principal Investigator |
SHIRAI Akihiro 徳島大学, 大学院・ソシオテクノサイエンス研究部, 助教 (40380117)
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| Project Period (FY) |
2011 – 2012
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| Project Status |
Completed (Fiscal Year 2012)
|
| Budget Amount *help |
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2012: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2011: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
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| Keywords | 滅菌 / 活性酸素種 / 細胞毒性 / 近紫外線 / 抗酸化剤 / 近紫外線照射 / 国際情報交流 / 多国籍 |
|---|
| Research Abstract |
The antimicrobial ability of near-ultraviolet irradiation was investigated by a bactericidal assay in a cell buffer solution with a light-emitting diode. At 30 J/cm^<2>of accumulated near-ultraviolet irradiation, survivors of Escherichia coli, Staphylococcus aureus and Saccharomyces cerevisiae reduced to 1/1000, 1/100 and 1/100 of their initial survivors, respectively. The effect of near-ultraviolet irradiation on specific growth rate of human neonate dermal fibroblasts was determined after addition of morin as an antioxidant to cell cultivation broth, followed by irradiation. Morin had the highest inhibition efficacy against generating reactive oxygen species in cells. As a result, the addition of morin increased the specific growth rate by 34% at 5.0 J/cmcm^<2>irradiation.
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