On-chip bioassay
On-chip bioassay
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DOI：
10.1038/nphoton.2012.356
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发表时间：
2012-12
期刊：
影响因子：
35
通讯作者：
N. Horiuchi
中科院分区：
文献类型：
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作者：
N. Horiuchi
OPTOFLUIDICS 使用 20 mW 激光的底部电极，他们观察到由于介质中介电常数和电导率与温度相关的梯度的产生而产生的感应电热涡流，该梯度与所施加的电场相互作用。诱导的环形微涡流将 MR-1 细菌输送到电极上的照明位置。结果，照明区域中 MR-1 细菌的数量随着时间呈指数增长。当研究人员将两个激光点聚焦在电极表面时，MR-1 细菌聚集在每个照明区域。他们还表明，通过在电极表面移动聚焦激光可以实现 MR-1 细菌的翻译。
OPTOFLUIDICS the bottom electrode with a 20 mW laser, they observed an induced electrothermal vortex due to the generation of temperaturedependent gradients of permittivity and conductivity in the medium, which interact with the applied electric field. The induced toroidal microvortex transported the MR-1 bacteria towards the illumination location on the electrode. As a result, the number of MR-1 bacteria exponentially increased with time in the illuminated area. When the researchers focused two laser spots on the electrode surface, the MR-1 bacteria aggregated at each of the illuminated areas. They also showed that the translation of MR-1 bacteria can be achieved by moving a focused laser across an electrode surface.