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迈向分子电子学。分子导线的自筛选。

Toward molecular electronics. Self-screening of molecular wires.

作者信息

Parodi M, Bianco B, Chiabrera A

出版信息

Cell Biophys. 1985 Sep;7(3):215-35. doi: 10.1007/BF02790467.

DOI:10.1007/BF02790467
PMID:2416448
Abstract

One-dimensional polyelectrolytes are proposed as molecular devices based on soliton propagation. The use of such "molecular wires" as delay lines or shift registers raises the problem of their electrical screening, because, when a large number of these wires are densely packed, cross-talking between them might occur. In order to overcome such a drawback, a detailed study of the polyelectrolyte behavior in an ionic solution has been developed, under equilibrium conditions. The results bring into evidence a condensation process, around each molecular wire, of the mobile ions in the solution. The consequent self-screening effect could be relevant in reducing cross-talking.

摘要

一维聚电解质被提议作为基于孤子传播的分子器件。将此类“分子导线”用作延迟线或移位寄存器会引发其电屏蔽问题,因为当大量这些导线紧密排列时,它们之间可能会发生串扰。为了克服这一缺点,已经在平衡条件下对离子溶液中聚电解质的行为进行了详细研究。结果表明,溶液中的移动离子会在每根分子导线周围发生凝聚过程。由此产生的自屏蔽效应可能与减少串扰相关。

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本文引用的文献

1
The Potential of an Infinite Rod-Like Molecule and the Distribution of the Counter Ions.无限长棒状分子的电势及抗衡离子的分布
Proc Natl Acad Sci U S A. 1951 Sep;37(9):579-89. doi: 10.1073/pnas.37.9.579.
2
Nature of the open state in long polynucleotide double helices: possibility of soliton excitations.长链多核苷酸双螺旋开放状态的本质:孤子激发的可能性。
Proc Natl Acad Sci U S A. 1980 Dec;77(12):7222-6. doi: 10.1073/pnas.77.12.7222.
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The molecular theory of polyelectrolyte solutions with applications to the electrostatic properties of polynucleotides.
Biophys J. 1991 Jun;59(6):1284-9. doi: 10.1016/S0006-3495(91)82343-8.
聚电解质溶液的分子理论及其在多核苷酸静电性质中的应用。
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