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關(guān)于photothermal therapy中的激光強(qiáng)度,萬(wàn)分感謝! 已有3人參與
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| I noticed that most literature doing photothermal therapy were using a laser power intensity of 10W/cm2 to 20W/cm2 and they reported a dramatic temperature increase as high as to 40oC which is enough to kill cancer cells. However, on the other hand, for research on solar vapor generation of plasmonic nanoparticles, the laser intensity is at least 10^4W/cm2 or even higher, which induce a temperature change of 10s oC. Also, theoretical calculation showed that for a 20 nm AuNP, the temperature increase is only 4oC when a illumination of 520 nm and 10^5 W/cm2. Why the temperature increase is so dramatic in photothermal therapy at such low light intensity? Thanks a lot! |
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熱療加熱的僅僅是細(xì)胞附近的液體,而太陽(yáng)能蒸汽加熱的是整個(gè)體積的液體。液體量比起細(xì)胞附近的液體多吧?低光照密度,應(yīng)該也可以使液體加熱,光熱轉(zhuǎn)換速率是以皮秒或飛秒來(lái)衡量,那當(dāng)然是快速了。 發(fā)自小木蟲IOS客戶端 |
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