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A molecular elevator
被引:894
|作者:
Badjic, JD
Balzani, V
Credi, A
Silvi, S
Stoddart, JF
机构:
[1] Univ Bologna, Dipartimento Chim G Ciamician, I-40126 Bologna, Italy
[2] Univ Calif Los Angeles, Dept Chem & Biochem, Los Angeles, CA 90095 USA
[3] Univ Calif Los Angeles, Calif NanoSyst Inst, Los Angeles, CA 90095 USA
来源:
关键词:
D O I:
10.1126/science.1094791
中图分类号:
O [数理科学和化学];
P [天文学、地球科学];
Q [生物科学];
N [自然科学总论];
学科分类号:
07 ;
0710 ;
09 ;
摘要:
We report the incrementally staged design, synthesis, characterization, and operation of a molecular machine that behaves like a nanoscale elevator. The operation of this device, which is made of a platformlike component interlocked with a trifurcated riglike component and is only 3.5 nanometers by 2.5 nanometers in size, relies on the integration of several structural and functional molecular subunits. This molecular elevator is considerably more complex and better organized than previously reported artificial molecular machines. It exhibits a clear-cut on-off reversible behavior, and it could develop forces up to around 200 piconewtons.
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页码:1845 / 1849
页数:5
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