title: Ternary phase diagram for the Belousov-Zhabotinsky reaction-induced mechanical oscillation of intelligent PNIPAM colloids.
abstract: Belousov-Zhabotinsky (BZ) reaction-induced mechanical oscillation of poly(N-isopropylacrylamide) (PNIPAM) gel particles was investigated by the systematic variation of BZ substrate concentrations. The correlation between the dynamic behavior and substrate concentrations was presented in a ternary phase diagram. Both oscillatory and steady-state regimes exist on the phase diagram and are separated by a high-frequency oscillation band. Dependence of oscillation frequency and induction time on the substrate concentrations was also studied. To achieve size uniformity, these PNIPAM gel particles with covalently bound tris(bipyridyl)ruthenium(II) were synthesized via the coordination chemistry between a ruthenium complex and the monodispersed PNIPAM gel particles bearing bipyridine ligands.
authors.affiliation: Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, Texas 77843, USA.
authors.forename: Jingyi
authors.initials: J
authors.lastname: Shen
authors.forename: Srinivasa
authors.initials: S
authors.lastname: Pullela
authors.forename: Manuel
authors.initials: M
authors.lastname: Marquez
authors.forename: Zhengdong
authors.initials: Z
authors.lastname: Cheng
mesh_terms: D015082:2,2'-Dipyridyl / Q000031:analogs & derivatives / Q000737:chemistry; D000178:Acrylamides / Q000737:chemistry; D000180:Acrylic Resins / Q000737:chemistry*; D001959:Bromates / Q000737:chemistry; D002384:Catalysis; D003102:Colloids / Q000737:chemistry*; D005782:Gels / Q000737:chemistry; D008314:Malonates / Q000737:chemistry; D008954:Models, Biological; D008956:Models, Chemical; D015394:Molecular Structure; D009942:Organometallic Compounds / Q000737:chemistry; D009991:Oscillometry; D010316:Particle Size; D044367:Phase Transition; D012428:Ruthenium / Q000737:chemistry*; D017670:Sodium Compounds / Q000737:chemistry
chemical_list: D000178:Acrylamides; D000180:Acrylic Resins; D001959:Bromates; D003102:Colloids; D005782:Gels; D008314:Malonates; D009942:Organometallic Compounds; D017670:Sodium Compounds; C095931:dichlorobis(2,2'-bipyridine)ruthenium; C052970:poly-N-isopropylacrylamide; D015082:2,2'-Dipyridyl; D012428:Ruthenium; C030290:malonic acid; C067295:N-isopropylacrylamide; C060553:sodium bromate