| 摘要 |
<p>Provided is a microfluidic device (110,210) and microfluidic system (100) with the device. The microfluidic device (110,210) includes a substrate (111,211); a channel (117,217) formed in the substrate (111,211) and in which a fluid can move; a valve (120,220) controlling flow of a fluid flowing along the channel and including a phase transition material which can be melted by energy such as electromagnetic wave energy; and a lens (122,222) disposed on the substrate (111,211) and adjusting an irradiating region of the valve (120,220), onto which the energy is applied.
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