Electrical conductivity of lambda DNA-Pd wire
Electrical conductivity of lambda DNA-Pd wire
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DOI：
10.1143/jjap.44.l955
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发表时间：
2005-01-01
期刊：
影响因子：
--
通讯作者：
Fujita, H
中科院分区：
文献类型：
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作者：
Hosogi, M;Hashiguchi, G;Fujita, H
我们用微机械DNA镊子研究了包裹Pd胶体的Lambda DNA分子的导电性，这种钳子有一对相反的探针来提取DNA分子。通过在溶液中的探针之间施加射频功率，从含有lambda DNA的溶液中提取分子。然后将回收的分子浸泡在含有阳离子Pd颗粒的胶体溶液中，这导致DNA-Pd导线桥接在镊子探针之间。DNA-Pd线的电流-电压曲线可以在DNA镊子探针之间测量，DNA-Pd线的电阻率约为74欧米伽厘米。
We investigated the electric conduction of lambda DNA molecules covered with Pd colloids using micromachined DNA tweezers that has a pair of opposing probes for retrieving DNA molecules. The molecules were retrieved from a solution containing lambda DNA by applying RF power between the probes in the solution. The retrieved molecules were then soaked in a colloidal solution containing cationic Pd particles, which results in a DNA-Pd wire bridged between the tweezer probes. Current-voltage curves for the DNA-Pd wire can be measured between the DNA tweezers probes, and the resistivity of the DNA-Pd wire was approximately 74 Omega cm.