Chemistry 版 (精华区)
发信人: boyang (Protoss), 信区: Chemistry
标 题: Science: A Molecular Elevator
发信站: 哈工大紫丁香 (Sun Mar 21 12:21:20 2004), 站内信件
A Molecular Elevator
Jovica D. Badji,et al
We report the incrementally staged design, synthesis, characterization, and op
eration of a molecular machine that behaves like a nanoscale elevator. The ope
ration of this device, which is made of a platformlike component interlocked w
ith a trifurcated riglike component and is only 3.5 nanometers by 2.5 nanomete
rs in size, relies on the integration of several structural and functional mol
ecular subunits. This molecular elevator is considerably more complex and bett
er organized than previously reported artificial molecular machines. It exhibi
ts a clear-cut on-off reversible behavior, and it could develop forces up to a
round 200 piconewtons.
Volume 303, Number 5665, Issue of 19 Mar 2004, pp. 1845-1849.
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