title: Size limitations for the formation of ordered striped nanoparticles.
abstract: A combination of immiscible molecules in the ligand shell of a gold nanoparticle (NP) has been shown to phase separate into a rippled structure; this phase separation can be used to direct the assembly of the NPs into chains. Here we demonstrate that only NPs within a certain size range can form chains, and we conclude that the rippled morphology of the ligand shell also exists only within that given size range. We corroborate this result with simulations of the ligand arrangement on NPs of various sizes.
authors.affiliation: Department of Materials Science & Engineering, MIT, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, USA.
authors.forename: Randy P
authors.initials: RP
authors.lastname: Carney
authors.forename: Gretchen A
authors.initials: GA
authors.lastname: DeVries
authors.forename: Cedric
authors.initials: C
authors.lastname: Dubois
authors.forename: Hyewon
authors.initials: H
authors.lastname: Kim
authors.forename: Jin Young
authors.initials: JY
authors.lastname: Kim
authors.forename: Chetana
authors.initials: C
authors.lastname: Singh
authors.forename: Pradip K
authors.initials: PK
authors.lastname: Ghorai
authors.forename: Joseph B
authors.initials: JB
authors.lastname: Tracy
authors.forename: Rebecca L
authors.initials: RL
authors.lastname: Stiles
authors.forename: Royce W
authors.initials: RW
authors.lastname: Murray
authors.forename: Sharon C
authors.initials: SC
authors.lastname: Glotzer
authors.forename: Francesco
authors.initials: F
authors.lastname: Stellacci
mesh_terms: D006046:Gold / Q000737:chemistry*; D053768:Metal Nanoparticles / Q000737:chemistry*; D010316:Particle Size
chemical_list: D006046:Gold