Specialists of MIPT together with colleagues from Institute of chemical physics of N. N. Semyonov of RAS and Institute of chemistry of a surface of National academy of Sciences of Ukraine developed nanomotors which turn on by means of rays of light. Their speed is three orders higher, than at Jean-Pierre Sovaja’s development, Bernard Feringi and Stoddart’s Milling cutter noted by the Nobel prize of 2016.
For movement of nanoparticles, for example, in cages, scientists suggested to use the dipolar photomotor on the basis of semiconductor nanoclusters. It is activated by a laser impulse and is controlled, allowing to move freights of the nanosizes in the necessary direction with record-breaking high speed. The more the difference of the dipolar moments in two electronic conditions, the is higher the speed and efficiency of such motor.
The basis of development was formed by the idea of Brownian motors – the proteinaceous devices transforming chaotic Brownian motion in directed forward, reciprocating or rotary under the influence of nonequilibrium fluctuations of various nature. These motors are a basis of muscle work, mobility of cages, transport of organellas inside and between cages, and also their food and waste recycling.
The understanding of bases of activities of such natural motors allows not only to reproduce them, but also to design new highly effective artificial samples with various functions, up to creation of the nanorobots capable to perform various tasks.
Head of department of the theory of the IHP NANU nanostructural systems
Nanomotors are constructed on the basis of inorganic particles – semiconductor nanocylinders. They on three orders quicker than analogs based on organic molecules also gather speed to 1 mm / page. According to scientists, nanomotors can be used for creation of new analytical and synthetic tools in chemistry and physics, for delivery of drugs in the necessary point of an organism, and also for gene therapy and the solution of some other tasks.
These nanomachines not only will fill the available gap in family of linear photomotors, but also will find the broadest application everywhere where the rapid transit of nanoparticles is required.
Professor of Department of chemical physics of MIPT and head of the laboratory of functional nanocomposites of IHF RAS