title: Magnetic-fluorescent colloidal nanobeads: preparation and exploitation in cell separation experiments.
abstract: Nanostructures displaying fluorescence and magnetic properties at the same time are potentially useful for achieving simultaneous bio-separation and bio-sensing (e.g., magnetic separation coupled with multiplexing optical detection of different tumour cell populations). Spherical nanobeads that display both fluorescent and magnetic features are reported; they are fabricated by grafting fluorescent oligothiophene molecules to an amphiphilic polymer that is then used to enwrap iron oxide nanoparticles, which acts as the magnetic domain. By tuning experimental conditions, control over the number of magnetic nanoparticles per bead and over the bead diameter (30-400 nm) was achieved. A cell separation efficiency of the level required for cell sorting applications is also reported.
authors: National Nanotechnology Laboratory of CNR-INFM, Lecce, Italy.
authors: Riccardo
authors: R
authors: Di Corato
authors: Philomena
authors: P
authors: Piacenza
authors: Mariarosaria
authors: M
authors: Musarò
authors: Raffaella
authors: R
authors: Buonsanti
authors: Pantaleo Davide
authors: PD
authors: Cozzoli
authors: Massimo
authors: M
authors: Zambianchi
authors: Giovanna
authors: G
authors: Barbarella
authors: Roberto
authors: R
authors: Cingolani
authors: Liberato
authors: L
authors: Manna
authors: Teresa
authors: T
authors: Pellegrino
mesh_terms: D002469:Cell Separation / Q000295:instrumentation / Q000379:methods; D003102:Colloids / Q000737:chemistry*; D005456:Fluorescent Dyes / Q000737:chemistry*; D006801:Humans; D008280:Magnetics; D015394:Molecular Structure; D053758:Nanoparticles / Q000737:chemistry*; D010316:Particle Size; D013499:Surface Properties
chemical_list: D003102:Colloids; D005456:Fluorescent Dyes