title: Lipid bilayer templated gold nanoparticles nanoring formation using zirconium ion coordination chemistry.
abstract: We used positively charged lipids to prepare lipid bilayer assemblies (LBAs) upon which we assembled negatively charged gold nanoparticles (AuNPs). Treatment of the assembly with zirconium chloride resulted in the formation of nanorings of the diameters inversely related to the zirconium ion concentration. The nanorings were attributed to the zirconium ion coordinated AuNPs formed during the lipid bilayer budding process promoted by the acid effect of zirconium chloride. Nanoring organization was also dependent on the fluidity of lipid bilayers, an indication of LBA-assisted nanomaterials organization. We suggest that such bioorganic-inorganic hybrid assemblies coupled to unique topological and morphological variations might be useful as stimuli-responsive sensors or storage compartments for proteins or drugs.
authors.affiliation: Biosensors and Nanomaterials Department, Sandia National Laboratories, Albuquerque, New Mexico 87185, USA.
authors.forename: Xiaoyin
authors.initials: X
authors.lastname: Xiao
authors.forename: Gabriel A
authors.initials: GA
authors.lastname: Montaño
authors.forename: Amy
authors.initials: A
authors.lastname: Allen
authors.forename: Komandoor E
authors.initials: KE
authors.lastname: Achyuthan
authors.forename: David R
authors.initials: DR
authors.lastname: Wheeler
authors.forename: Susan M
authors.initials: SM
authors.lastname: Brozik
mesh_terms: D002712:Chlorides / Q000737:chemistry*; D056831:Coordination Complexes / Q000138:chemical synthesis* / Q000737:chemistry; D006046:Gold / Q000737:chemistry*; D007477:Ions / Q000737:chemistry; D008051:Lipid Bilayers / Q000737:chemistry*; D053768:Metal Nanoparticles / Q000737:chemistry*; D010316:Particle Size; D013499:Surface Properties; D015040:Zirconium / Q000737:chemistry*
chemical_list: D002712:Chlorides; D056831:Coordination Complexes; D007477:Ions; D008051:Lipid Bilayers; D006046:Gold; D015040:Zirconium; C429984:zirconium chloride