Fluorescence Properties of Hydrophilic Semiconductor Nanoparticles with Tridentate Polyethylene Oxide Ligands
Само за регистроване кориснике
2011
Аутори
Thiry, MarcBoldt, Klaus
Nikolić, Marija
Schulz, Florian
Ijeh, Michael
Panicker, Andjana
Vossmeyer, Tobias
Weller, Horst
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
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.
Кључне речи:
polyethylene oxide / poly(ethylene glycol) / ligands / water-soluble / CdSe/CdS/ZnS / quantum dots / photoluminescenceИзвор:
ACS Nano, 2011, 5, 6, 4965-4973Издавач:
- Amer Chemical Soc, Washington
Финансирање / пројекти:
- Deutsche ForschungsgemeinschaftGerman Research Foundation (DFG) [DFG-SPP 1313, WE2059/8-1]
DOI: 10.1021/nn201065y
ISSN: 1936-0851
PubMed: 21619021
WoS: 000292055200082
Scopus: 2-s2.0-79959786907
Институција/група
Tehnološko-metalurški fakultetTY - JOUR AU - Thiry, Marc AU - Boldt, Klaus AU - Nikolić, Marija AU - Schulz, Florian AU - Ijeh, Michael AU - Panicker, Andjana AU - Vossmeyer, Tobias AU - Weller, Horst PY - 2011 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1884 AB - 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. PB - Amer Chemical Soc, Washington T2 - ACS Nano T1 - Fluorescence Properties of Hydrophilic Semiconductor Nanoparticles with Tridentate Polyethylene Oxide Ligands EP - 4973 IS - 6 SP - 4965 VL - 5 DO - 10.1021/nn201065y ER -
@article{ author = "Thiry, Marc and Boldt, Klaus and Nikolić, Marija and Schulz, Florian and Ijeh, Michael and Panicker, Andjana and Vossmeyer, Tobias and Weller, Horst", year = "2011", 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.", publisher = "Amer Chemical Soc, Washington", journal = "ACS Nano", title = "Fluorescence Properties of Hydrophilic Semiconductor Nanoparticles with Tridentate Polyethylene Oxide Ligands", pages = "4973-4965", number = "6", volume = "5", doi = "10.1021/nn201065y" }
Thiry, M., Boldt, K., Nikolić, M., Schulz, F., Ijeh, M., Panicker, A., Vossmeyer, T.,& Weller, H.. (2011). Fluorescence Properties of Hydrophilic Semiconductor Nanoparticles with Tridentate Polyethylene Oxide Ligands. in ACS Nano Amer Chemical Soc, Washington., 5(6), 4965-4973. https://doi.org/10.1021/nn201065y
Thiry M, Boldt K, Nikolić M, Schulz F, Ijeh M, Panicker A, Vossmeyer T, Weller H. Fluorescence Properties of Hydrophilic Semiconductor Nanoparticles with Tridentate Polyethylene Oxide Ligands. in ACS Nano. 2011;5(6):4965-4973. doi:10.1021/nn201065y .
Thiry, Marc, Boldt, Klaus, Nikolić, Marija, Schulz, Florian, Ijeh, Michael, Panicker, Andjana, Vossmeyer, Tobias, Weller, Horst, "Fluorescence Properties of Hydrophilic Semiconductor Nanoparticles with Tridentate Polyethylene Oxide Ligands" in ACS Nano, 5, no. 6 (2011):4965-4973, https://doi.org/10.1021/nn201065y . .