Gold nanorod-facilitated localized heating of droplets in microfluidic chips
Gold nanorod-facilitated localized heating of droplets in microfluidic chips
复制标题
金纳米棒促进微流控芯片中液滴的局部加热
DOI：
10.1364/oe.21.001281
复制
发表时间：
2013-01-14
期刊：
影响因子：
3.8
通讯作者：
Zhang, Lei
中科院分区：
文献类型：
--
作者：
Li, Zhiyong;Wang, Pan;Zhang, Lei
报道了一种金纳米棒辅助的微流控芯片液滴光学加热方法。含有金纳米棒的纳升级液滴和液流由低功率808 nm波长激光加热。由于金纳米棒的高光热转换效率，通过采用具有良好再现性的13.6mW激光器实现了95摄氏度的液滴温度。加热和冷却时间分别为200和800 ms，这归因于液滴的快速热传递速率。通过控制辐照激光功率，还演示了聚合酶链反应的温度循环。2013美国光学学会Optical Society of America
A gold nanorod-facilitated optical heating method for droplets in microfluidic chips is reported. Individual and stream nanoliter level droplets containing gold nanorods are heated by a low power 808-nm-wavelength laser. Owing to the high photothermal conversion efficiency of gold nanorods, a droplet temperature of 95 degrees C is achieved by employing a 13.6 mW laser with good reproducibility. The heating and cooling times are 200 and 800 ms, respectively, which are attributed to the fast thermal-transfer rates of the droplets. By controlling the irradiation laser power, the temperature cycles for polymerase chain reaction are also demonstrated. (C)2013 Optical Society of America