title: Recognition-induced transformation of microspheres into vesicles: morphology and size control.
abstract: Polystyrene functionalized with diamidopyridine (DAP) recognition units self-assembles in nonpolar media to form thermally reversible micrometer-scale spherical aggregates. The size and the thermal stability of these microspheres can be controlled by the molecular weight of the polymer. The addition of thymine-functionalized polymer to these self-assembled microspheres converted them into vesicular aggregates with a controlled size. The morphology change was reversible: the addition of DAP-functionalized polymer converted the vesicles back to microspheres.
authors.affiliation: Department of Chemistry, University of Massachusetts, Amherst, MA 01003, USA.
authors.forename: Oktay
authors.initials: O
authors.lastname: Uzun
authors.forename: Amitav
authors.initials: A
authors.lastname: Sanyal
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Nakade
authors.forename: Raymond J
authors.initials: RJ
authors.lastname: Thibault
authors.forename: Vincent M
authors.initials: VM
authors.lastname: Rotello
mesh_terms: D015374:Biosensing Techniques; D016503:Drug Delivery Systems; D008863:Microspheres; D008970:Molecular Weight; D011137:Polystyrenes / Q000737:chemistry*; D011725:Pyridines / Q000737:chemistry*; D013055:Spectrophotometry, Infrared
chemical_list: D011137:Polystyrenes; D011725:Pyridines