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富勒烯轮式纳米机器在热激活弯曲金基底上的运动研究。

Investigation of the motion of fullerene-wheeled nano-machines on thermally activated curved gold substrates.

作者信息

Bakhtiari Mohammad Ali, Seifi Saeed, Tohidloo Mahdi, Shamloo Amir

机构信息

School of Mechanical Engineering, Sharif University of Technology, Azadi Ave., Tehran, Iran.

出版信息

Sci Rep. 2022 Oct 29;12(1):18255. doi: 10.1038/s41598-022-22517-1.

DOI:10.1038/s41598-022-22517-1
PMID:36309569
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9617915/
Abstract

The current study presents one of the first investigations in which the simultaneous effect of the curved gold substrates and temperature changes on C and C-wheeled nano-machines' migration was evaluated. For this aim, the cylindrical and concave substrates with different radii were chosen to attain the size of the most appropriate substrate for nano-machines. Results indicated that the chassis' flexibility substantially affected the nanocar's mobility. Nano-machines' deviation from their desired direction was adequately restricted due to selected substrate geometries (The cylindrical and concave). Besides, for the first time, the effect of the substrate radius changes on nano-machine's motion has been investigated. Our findings revealed that adjusting the value of radius results in a long-range movement for nano-machines as well as a sufficient amount of diffusion coefficient even at low temperatures ([Formula: see text] or [Formula: see text]). As a result, the aforementioned substrates could be utilized as the optimized geometries for C and nanocar at all temperatures. At the same time, the nanotruck displayed an appropriate performance merely on the small cylindrical substrate ([Formula: see text]) at high temperatures ([Formula: see text] and [Formula: see text]).

摘要

当前的研究是首批对弯曲金基底和温度变化对C型和C轮纳米机器迁移的同时影响进行评估的研究之一。为此，选择了具有不同半径的圆柱形和凹形基底，以获得最适合纳米机器的基底尺寸。结果表明，底盘的柔韧性对纳米车的移动性有很大影响。由于所选的基底几何形状（圆柱形和凹形），纳米机器偏离其期望方向的情况得到了充分限制。此外，首次研究了基底半径变化对纳米机器运动的影响。我们的研究结果表明，调整半径值会使纳米机器产生远距离移动，并且即使在低温（[公式：见原文]或[公式：见原文]）下也具有足够的扩散系数。因此，上述基底可在所有温度下用作C型和纳米车的优化几何形状。同时，纳米卡车仅在高温（[公式：见原文]和[公式：见原文]）下的小圆柱形基底（[公式：见原文]）上表现出适当的性能。

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