Monitoring the size and the stability of zinc oxide quantum dots in biological media
| Autor: | Lavinia Balan, Raphaël Schneider, Pierre Magri, Jean-Jacques Gaumet, Clément Dezanet, Gabriel Gaiffe, Stéphane Dalmasso |
|---|---|
| Přispěvatelé: | Laboratoire de Chimie et Physique - Approche Multi-échelle des Milieux Complexes (LCP-A2MC), Université de Lorraine (UL), Laboratoire Réactions et Génie des Procédés (LRGP), Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS), Institut de Science des Matériaux de Mulhouse (IS2M), Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Matériaux et nanosciences d'Alsace (FMNGE), Institut de Chimie du CNRS (INC)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Réseau nanophotonique et optique, Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA) |
| Rok vydání: | 2015 |
| Předmět: |
Materials science
technology industry and agriculture Analytical chemistry chemistry.chemical_element 02 engineering and technology Zinc engineering.material equipment and supplies 010402 general chemistry 021001 nanoscience & nanotechnology Mass spectrometry 01 natural sciences 0104 chemical sciences Ion Matrix-assisted laser desorption/ionization Coating chemistry Quantum dot engineering Mass spectrum [CHIM]Chemical Sciences Time-of-flight mass spectrometry 0210 nano-technology Core/shell |
| Zdroj: | 2015 MRS Spring Meeting 2015 MRS Spring Meeting, Apr 2015, San Francisco, United States. pp.7-12, ⟨10.1557/OPL.2015.620⟩ |
| ISSN: | 1946-4274 0272-9172 |
| DOI: | 10.1557/opl.2015.620 |
| Popis: | We present herein a joint physical/physico-chemical study and, more specifically, the first application of Matrix Assisted Laser Desorption Ionization coupled with Time of Flight Mass Spectrometry (MALDI-TOF-MS) to analyze small-sized ZnO quantum dots (QDs) (2.8-3.1 nm diameter range) synthesized by sol-gel chemistry and stabilized through an aminosilane coating. A careful investigation of the stability of ZnO QDs was initiated once these dots were dispersed in different media (water, biological buffer) for a period up to 3 weeks. Positive ion mode mass spectra MALDI-TOF-MS combined with optical spectrometry was used to monitor the stability of ZnO QDs when aging. Such a unique combination of MALDI-TOF-MS and physico-chemical techniques is likely to bring new insights into the structure analysis, the stability and consequently the potential toxicity of QDs. |
| Databáze: | OpenAIRE |
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