title: Biomimetic dopamine derivative for selective polymer modification of halloysite nanotube lumen.
abstract: We demonstrate the use of a catecholic anchor (Dopa) for selective modification of the inner surface of an halloysite clay nanotube. Aqueous Dopa binds to alumina at the tube lumen and does not bind the silica surface under the same conditions. Selectivity of surface modification was evidenced using X-ray photoelectron spectroscopy (XPS) and (13)C solid state NMR spectroscopy. Surface-initiated atom transfer radical polymerization (SI-ATRP) was performed through selectively adsorbed Dopa to graft a layer of polymer brush into the nanotube lumen.
authors: Graduate School of Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan.
authors: Weng On
authors: WO
authors: Yah
authors: Hang
authors: H
authors: Xu
authors: Hiroe
authors: H
authors: Soejima
authors: Wei
authors: W
authors: Ma
authors: Yuri
authors: Y
authors: Lvov
authors: Atsushi
authors: A
authors: Takahara
mesh_terms: D000538:Aluminum Silicates / Q000737:chemistry*; D040761:Biomimetic Materials / Q000737:chemistry*; D000077215:Clay; D004298:Dopamine / Q000031:analogs & derivatives*; D008958:Models, Molecular; D043942:Nanotubes / Q000737:chemistry* / Q000648:ultrastructure; D056951:Photoelectron Spectroscopy; D058105:Polymerization; D011108:Polymers / Q000737:chemistry*; D012822:Silicon Dioxide / Q000737:chemistry; D013499:Surface Properties
chemical_list: D000538:Aluminum Silicates; D011108:Polymers; D012822:Silicon Dioxide; D000077215:Clay; D004298:Dopamine