title: Tuning multiphase amphiphilic rods to direct self-assembly.
abstract: New methods to direct the self-assembly of particles are highly sought after for multiple applications, including photonics, electronics, and drug delivery. Most techniques, however, are limited to chemical patterning on spherical particles, limiting the range of possible structures. We developed a lithographic technique for fabrication of chemically anisotropic rod-like particles in which we can specify both the size and shape of particles and implement multiple diverse materials to control interfacial interactions. Multiphase rod-like particles, including amphiphilic diblock, triblock, and multiblock were fabricated in the same template mold having a tunable hydrophilic/hydrophobic ratio. Self-assembly of diblock or triblock rods at a water/oil interface led to the formation of bilayer or ribbon-like structures.
authors: Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, USA.
authors: Jie-Yu
authors: JY
authors: Wang
authors: Yapei
authors: Y
authors: Wang
authors: Sergei S
authors: SS
authors: Sheiko
authors: Douglas E
authors: DE
authors: Betts
authors: Joseph M
authors: JM
authors: DeSimone
mesh_terms: D000818:Animals; D016880:Anisotropy; D057927:Hydrophobic and Hydrophilic Interactions; D009821:Oils / Q000737:chemistry; D009930:Organic Chemicals / Q000737:chemistry*; D011327:Printing / Q000379:methods*; D014867:Water / Q000737:chemistry; D017155:Wettability
chemical_list: D009821:Oils; D009930:Organic Chemicals; D014867:Water