Shah Zameer Hussain, Wang Shuo, Xian Longbin, Zhou Xuemao, Chen Yi, Lin Guanhua, Gao Yongxiang
Institute for Advanced Study, Shenzhen University, Nanhai Avenue 3688, Shenzhen 518060, People's Republic of China.
Chem Commun (Camb). 2020 Dec 18;56(97):15301-15304. doi: 10.1039/d0cc06812h. Epub 2020 Nov 17.
We report the synthesis of silver-based Janus micromotors that self-propel at 3.5 μm s and speed up to 45 μm s in 0.044 and 1.5 mM of HO, respectively, via ionic diffusiophoresis. Morphology optimization further accelerates the speed to 90 μm s, which leads to a force of 1 pN and a power of 0.1 fW, similar to biomolecular motors. Their efficiency reaches 10, at least two orders of magnitude higher than other chemically-driven micromotors. These micromotors hold great promises in various applications.
我们报道了基于银的Janus微马达的合成，其通过离子扩散泳分别在0.044 mM和1.5 mM的过氧化氢中以3.5 μm/s的速度自行推进，并加速至45 μm/s。形态优化进一步将速度提高到90 μm/s，这产生了1 pN的力和0.1 fW的功率，类似于生物分子马达。它们的效率达到10%，比其他化学驱动的微马达至少高两个数量级。这些微马达在各种应用中具有巨大的潜力。
