title: DNA transport in hierarchically-structured colloidal-nanoparticle porous-wall nanochannels.
abstract: We report a simple approach to the formation of 3D colloidal nanoparticle structures incorporating enclosed mesoscopic structures through a simple process of spin-coating-driven directed self-assembly onto lithographically defined polymer templates. Removal of the buried polymer patterns by high temperature calcination results in the formation of hierarchically enclosed channels, continuous networks, isolated cavities, and multilayered structures with high stability and environmental resistance. These channels are used to investigate the transport of DNA molecules in constrained geometries.
authors.affiliation: Center for High Technology Materials, University of New Mexico, Albuquerque, NM 87106, USA.
authors.forename: Deying
authors.initials: D
authors.lastname: Xia
authors.forename: Thomas C
authors.initials: TC
authors.lastname: Gamble
authors.forename: Edgar A
authors.initials: EA
authors.lastname: Mendoza
authors.forename: Steven J
authors.initials: SJ
authors.lastname: Koch
authors.forename: Xiang
authors.initials: X
authors.lastname: He
authors.forename: Gabriel P
authors.initials: GP
authors.lastname: Lopez
authors.forename: S R J
authors.initials: SR
authors.lastname: Brueck
mesh_terms: D003102:Colloids / Q000737:chemistry*; D004247:DNA / Q000737:chemistry* / Q000648:ultrastructure*; D004058:Diffusion; D044085:Microfluidics / Q000379:methods*; D009038:Motion; D049329:Nanostructures / Q000737:chemistry* / Q000648:ultrastructure*
chemical_list: D003102:Colloids; D004247:DNA