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Fluorescence Properties of Hydrophilic Semiconductor Nanoparticles with Tridentate Polyethylene Oxide Ligands
dc.creator | Thiry, Marc | |
dc.creator | Boldt, Klaus | |
dc.creator | Nikolić, Marija | |
dc.creator | Schulz, Florian | |
dc.creator | Ijeh, Michael | |
dc.creator | Panicker, Andjana | |
dc.creator | Vossmeyer, Tobias | |
dc.creator | Weller, Horst | |
dc.date.accessioned | 2021-03-10T11:34:54Z | |
dc.date.available | 2021-03-10T11:34:54Z | |
dc.date.issued | 2011 | |
dc.identifier.issn | 1936-0851 | |
dc.identifier.uri | http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1884 | |
dc.description.abstract | In this contribution a facile, one-step synthesis of tridentate thiol-functionalized PEO ligands and their ability to stabilize CdSe/CdS/ZnS core-shell-shell nanoparticles In aqueous media are described. The PEO-coated quantum dots show colloidal stability as well as preserved fluorescence even at very low concentrations of a few nM. For improved ligand attachment and enhanced fluorescence properties a method for ligand exchange was developed, which includes formation of a ligand zinc complex before the actual exchange reaction. The stability and fluorescence properties in various aqueous buffers and cell media and at pH values down to pH 3 were investigated. The firm binding of the tridentate ligands to the particle surface makes this ligand particle system a promising tool for biological applications. In addition, activation of the ligands' terminal hydroxyl group for covalent biofunctionalization by esterification with succinic acid is reported. | en |
dc.publisher | Amer Chemical Soc, Washington | |
dc.relation | Deutsche ForschungsgemeinschaftGerman Research Foundation (DFG) [DFG-SPP 1313, WE2059/8-1] | |
dc.rights | restrictedAccess | |
dc.source | ACS Nano | |
dc.subject | polyethylene oxide | en |
dc.subject | poly(ethylene glycol) | en |
dc.subject | ligands | en |
dc.subject | water-soluble | en |
dc.subject | CdSe/CdS/ZnS | en |
dc.subject | quantum dots | en |
dc.subject | photoluminescence | en |
dc.title | Fluorescence Properties of Hydrophilic Semiconductor Nanoparticles with Tridentate Polyethylene Oxide Ligands | en |
dc.type | article | |
dc.rights.license | ARR | |
dc.citation.epage | 4973 | |
dc.citation.issue | 6 | |
dc.citation.other | 5(6): 4965-4973 | |
dc.citation.rank | aM21 | |
dc.citation.spage | 4965 | |
dc.citation.volume | 5 | |
dc.identifier.doi | 10.1021/nn201065y | |
dc.identifier.pmid | 21619021 | |
dc.identifier.scopus | 2-s2.0-79959786907 | |
dc.identifier.wos | 000292055200082 | |
dc.type.version | publishedVersion |