Understanding and controlling water molecules confined in water channels has great applications. Many artificial water channels have been designed to mimic water permeation across water channels. One kind of artificial water channels, which contains two disjoint carbon nanotubes that are not physically connected has attracted much attention. Water transfers through the disjoint nanochannel by a water bridge. However, the water bridge is affected by the nanogap between two disjoint carbon nanotubes. Here, we firstly report on the possibility of reinforcing a water bridge in a disjoint nanochannel by molecular dynamics simulations and find that the length of the nanogap, the electric field strength, the direction of the electric field and the effective pressure within water have an effect on the formation of a water bridge in the disjoint nanochannel. The analysis of the Lennard-Jones potential and the potential of mean force helps to reveal the mechanism. Our findings are benefic...

中文翻译：

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加固不相交的纳米通道中的水桥

了解和控制限制在水通道中的水分子具有很大的应用。已经设计了许多人造水通道来模拟水在水通道中的渗透。一种人工水通道，包含两个未物理连接的不相交的碳纳米管，引起了人们的广泛关注。水通过水桥通过不相交的纳米通道转移。然而，水桥受到两个不相交的碳纳米管之间的纳米间隙的影响。在这里，我们首先通过分子动力学模拟报告了在不相交的纳米通道中增强水桥的可能性，并发现纳米间隙的长度，电场强度，电场的方向和水中的有效压力会影响不相交的纳米通道中水桥的形成。Lennard-Jones势和平均力势的分析有助于揭示这一机理。我们的发现是有益的...