Electrical and optical properties of a gradient microplasma for microfluidic chips
Electrical and optical properties of a gradient microplasma for microfluidic chips
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DOI：
10.1002/ppap.201600194
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发表时间：
2017
影响因子：
3.5
通讯作者：
P. Bryant;P. Wettstein;S. Al‐Bataineh;R. Short;J. Bradley;S. Low;L. Parkinson;E. Szili
中科院分区：
文献类型：
--
作者：
P. Bryant;P. Wettstein;S. Al‐Bataineh;R. Short;J. Bradley;S. Low;L. Parkinson;E. Szili
研究了空间变化的He微等离子体的电学和光学性质对微流控芯片内吸附蛋白质层的梯度表面修饰的影响。在天然聚二甲基硅氧烷（PDMS）微通道内产生微等离子体。激发和亚稳态的他和N2（从空气中）可能发挥了重要作用，在放电期间的蛋白质的去除/修改。在放电事件之间，N2（A）可吸收物也可以引起键断裂和表面改性。进料气体的吹扫时间被证明是重要的，在使用小规模的微等离子体源的表面处理或蛋白质改性。
The influence of the electrical and optical properties of a spatially varying He microplasma on the gradient surface modification of an adsorbed protein layer inside a microfluidic chip was investigated. Microplasma was generated inside a native polydimethylsiloxane (PDMS) microchannel. Excited and metastable states of He and N2 (from air) potentially played a major role in the removal/modification of protein during the discharge period. In-between discharge events, N2(A) metastables can also induce bond breaking and surface modification. The purge time of the feed gas was shown to be important in the use of small scale microplasma sources for surface processing or protein modification.