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Information × Registration Number 0213U002673, 0110U004522 , R & D reports Title Nanomotors at boundary surfaces popup.stage_title Head Rozenbaum V.M., Registration Date 01-02-2013 Organization Institute of Surface Chemistry of the National Academy of Sciences of Ukraine popup.description2 Exact solutions of the diffusion dynamics of a Brownian particle, with its potential energy undergoing, in the force field of the environment, dichotomic fluctuations between two potential profiles, have been obtained for the following cases: a Brownian motor with extremely asymmetric sawtooth potential fluctuating by half a period, a Brownian pump with two sign-fluctuating linear pieces of the potential, and a reciprocating Brownian motor with a V-shaped potential profile undergoing shift fluctuations. It has been found that photoexcited dichotomic fluctuations of the electron density distribution in an extended molecule placed into the electrostatic periodic potential of a polar substrate cause an ensemble of variously oriented molecules to move directionally, provided molecular electron density distributions are symmetric and substrates are asymmetric; in contrast, the ensemble diffuses under the same conditions if molecular electron density distributions are asymmetric and substrates are symmetric. Product Description popup.authors Корочкова Т.Є. Розенбаум В.М. popup.nrat_date 2020-04-02 Close