title: Synthesis of cationic quantum dots via a two-step ligand exchange process.
abstract: A new class of quaternary ammonium derivatives has been used to synthesize cationic CdSe/ZnS quantum dots with exceptional stability in water as well as in biological media.
authors.affiliation: Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, MA 01003, USA.
authors.forename: Yi-Cheun
authors.initials: YC
authors.lastname: Yeh
authors.forename: Debabrata
authors.initials: D
authors.lastname: Patra
authors.forename: Bo
authors.initials: B
authors.lastname: Yan
authors.forename: Krishnendu
authors.initials: K
authors.lastname: Saha
authors.forename: Oscar R
authors.initials: OR
authors.lastname: Miranda
authors.forename: Chae Kyu
authors.initials: CK
authors.lastname: Kim
authors.forename: Vincent M
authors.initials: VM
authors.lastname: Rotello