2D distribution mapping of quantum dots injected onto filtration paper by laser-induced breakdown spectroscopy
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14740%2F17%3A00096356" target="_blank" >RIV/00216224:14740/17:00096356 - isvavai.cz</a>
Nalezeny alternativní kódy
RIV/00216305:26620/17:PU123084
Výsledek na webu
<a href="http://www.sciencedirect.com/science/article/pii/S058485471730143X" target="_blank" >http://www.sciencedirect.com/science/article/pii/S058485471730143X</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.sab.2017.03.016" target="_blank" >10.1016/j.sab.2017.03.016</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
2D distribution mapping of quantum dots injected onto filtration paper by laser-induced breakdown spectroscopy
Popis výsledku v původním jazyce
In this study, the feasibility of Quantum dots (QDs) 2D distribution mapping on the substrate by Laser-Induced Breakdown Spectroscopy (LIBS) was examined. The major objective of this study was to describe phenomena occurring after applying aqueous solutions of QDs onto filtration paper. Especially, the influence of pH and presence of Cu2 + cations in QDs solutions on LIBS signal was investigated. Cadmium Telluride QDs (CdTe QDs) were prepared by formation of nanosized semiconductor particles in so called “one-pot” synthesis. CdTe QDs were capped by glutathione or by 3-mercaptopropionic acid. The technique described in this work allows detection of QDs injected on the selected substrate – filtration paper. Results obtained from LIBS experiments were collated with a comparative method, fluorescence microscopy, which showed variations in the distribution of QDs on the substrate surface and possibilities for quenching. Due to the immediate signal response, relatively simple instrumentation and automatization possibility, LIBS offers promising and fast alternative to other techniques, as it is able to detect also nanoparticles with no visible luminescence.
Název v anglickém jazyce
2D distribution mapping of quantum dots injected onto filtration paper by laser-induced breakdown spectroscopy
Popis výsledku anglicky
In this study, the feasibility of Quantum dots (QDs) 2D distribution mapping on the substrate by Laser-Induced Breakdown Spectroscopy (LIBS) was examined. The major objective of this study was to describe phenomena occurring after applying aqueous solutions of QDs onto filtration paper. Especially, the influence of pH and presence of Cu2 + cations in QDs solutions on LIBS signal was investigated. Cadmium Telluride QDs (CdTe QDs) were prepared by formation of nanosized semiconductor particles in so called “one-pot” synthesis. CdTe QDs were capped by glutathione or by 3-mercaptopropionic acid. The technique described in this work allows detection of QDs injected on the selected substrate – filtration paper. Results obtained from LIBS experiments were collated with a comparative method, fluorescence microscopy, which showed variations in the distribution of QDs on the substrate surface and possibilities for quenching. Due to the immediate signal response, relatively simple instrumentation and automatization possibility, LIBS offers promising and fast alternative to other techniques, as it is able to detect also nanoparticles with no visible luminescence.
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
10406 - Analytical chemistry
Návaznosti výsledku
Projekt
<a href="/cs/project/LQ1601" target="_blank" >LQ1601: CEITEC 2020</a><br>
Návaznosti
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach
Ostatní
Rok uplatnění
2017
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY
ISSN
0584-8547
e-ISSN
—
Svazek periodika
131
Číslo periodika v rámci svazku
May
Stát vydavatele periodika
GB - Spojené království Velké Británie a Severního Irska
Počet stran výsledku
8
Strana od-do
107-114
Kód UT WoS článku
000401200700014
EID výsledku v databázi Scopus
2-s2.0-85015991430