title: Spiky gold nanoshells.
abstract: We report a high-yield synthetic method for a new type of metal nanostructure, spiky gold nanoshells, which combine the morphological characteristics of hollow metal nanoshells and nanorods. Our method utilizes block copolymer assemblies and polymer beads as templates for the growth of spiky nanoshells. Various shapes of spiky metal nanoshells were prepared in addition to spherical nanoshells by using block copolymer assemblies such as rod-like micelles, vesicles, and bilayers as templates. Furthermore, spiky gold shells encapsulating magnetic nanoparticles or quantum dots were prepared based on the ability of block copolymers to self-assemble with various types of nanoparticles and molecules. The capability to encapsulate other materials in the core, the shape tunability, and the highly structured surface of spiky nanoshells should benefit a range of imaging, sensing, and medical applications of metal nanostructures.
authors.affiliation: Department of Chemistry, University of Pennsylvania, 231 South 34th Street, Philadelphia, Pennsylvania 19104, United States.
authors.forename: Brenda L
authors.initials: BL
authors.lastname: Sanchez-Gaytan
authors.forename: So-Jung
authors.initials: SJ
authors.lastname: Park
mesh_terms: D019187:Cadmium Compounds / Q000737:chemistry; D004337:Drug Carriers / Q000737:chemistry; D052203:Ferrosoferric Oxide / Q000737:chemistry; D006046:Gold / Q000737:chemistry*; D046529:Microscopy, Electron, Transmission; D057145:Nanoshells / Q000737:chemistry*; D036103:Nanotechnology / Q000379:methods*; D043942:Nanotubes / Q000737:chemistry; D011108:Polymers / Q000737:chemistry; D013440:Sulfides / Q000737:chemistry; D017967:Zinc Compounds / Q000737:chemistry
chemical_list: D019187:Cadmium Compounds; D004337:Drug Carriers; D011108:Polymers; D013440:Sulfides; D017967:Zinc Compounds; C034939:cadmium sulfide; D006046:Gold; C031238:zinc sulfide; D052203:Ferrosoferric Oxide