title: Designing a thermo-switchable channel for nanofluidic controllable transportation.
abstract: Owing to the important roles of chemical gates in biological systems, the biomimetic design of artificial switchable nanodevices has been attracting tremendous interest. Here, we design a cylindrical thermo-sensitive channel, in which nanofliudic transport properties can be controlled by manipulating environmental temperature. The switchable channel is formed by a polystyrene-b-poly(acrylic acid)-b-polystyrene (PS-PAA-PS)-like triblock copolymer brush whose conformation and phase behavior are dependent on temperature. With the increase of temperature, the designed channel exhibits "close→open→close" behavior, which can serve as a kind of excellent switchable nanodevice for nanofluidic controllable transportation.
authors.affiliation: Division of Molecular and Materials Simulation, Key Lab for Nanomaterials, Ministry of Education, College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China.
authors.forename: Lisheng
authors.initials: L
authors.lastname: Cheng
authors.forename: Dapeng
authors.initials: D
authors.lastname: Cao
mesh_terms: D046210:Microfluidic Analytical Techniques; D008958:Models, Molecular; D008968:Molecular Conformation; D036103:Nanotechnology / Q000295:instrumentation*; D011108:Polymers / Q000737:chemistry; D013696:Temperature
chemical_list: D011108:Polymers