应用于生物领域的dna附着碳纳米粒子的电学性质研究

2012 7th IEEE International Conference on Nano/Micro Engineered and Molecular Systems (NEMS) Pub Date : 2012-03-05 DOI:10.1109/NEMS.2012.6196810

M. Ouyang, W. Li, K. Wong, Wing-keung Liu

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引用次数: 2

摘要

碳纳米颗粒是一种以石墨结构为主的纳米级晶体。我们最近的工作表明，dna附着的碳纳米颗粒(DAC)可以定位在微流体系统的微电极之间，以研究其电学性质。基于介电的“沉积”导致各种dac与芯片衬底的牢固粘附，即使经过反复的去离子水冲洗。比较分析了三种DACs在不同条件下(开放环境、密封于干燥微通道、浸没于去离子水中)的静脉特性及稳定性。此外，还进行了实验，以确定dac的温度和湿度依赖性。

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Investigation of electrical properties of DNA-attached carbon nano-particles for biological applications

Carbon nano-particles are nano-sized crystalline with predominantly graphitic structure. Our recent work showed that DNA-attached Carbon Nano-Particles (DAC) can be positioned between microelectrodes in a microfluidic system to investigate its electrical properties. Dielectrophoretic based “deposition” led to a robust adhesion of various DACs with the chip substrate even after repeatedly DI water flushing. The IV characteristics and stability of three types of DACs under different conditions (i.e., towards open environment, sealed in dry microchannel, or immerged in DI water) were compared and analyzed. In addition, experiments were conducted to determine the temperature and humidity dependency of the DACs.

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2012 7th IEEE International Conference on Nano/Micro Engineered and Molecular Systems (NEMS)

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