Distribution mapping of metal-based nanoparticles by
Laser-Induced Breakdown Spectroscopy

a 2015

Distribution mapping of metal-based nanoparticles by Laser-Induced Breakdown Spectroscopy

NOVOTNÝ, Karel, Marie NOVOTNÁ, Aleš HRDLIČKA, Pavel KOPEL, Jozef KAISER et. al.

Základní údaje

Originální název

Distribution mapping of metal-based nanoparticles by Laser-Induced Breakdown Spectroscopy

Autoři

NOVOTNÝ, Karel (203 Česká republika, garant, domácí), Marie NOVOTNÁ (203 Česká republika), Aleš HRDLIČKA (203 Česká republika, domácí), Pavel KOPEL (703 Slovensko), Jozef KAISER (203 Česká republika), René KIZEK (203 Česká republika) a Vojtěch ADAM (203 Česká republika)

Vydání

8th Euro-Mediterranean Symposium on Laser Induced Breakdown Spectroscopy, 2015

Další údaje

Jazyk

angličtina

Typ výsledku

Konferenční abstrakt

Obor

10402 Inorganic and nuclear chemistry

Stát vydavatele

Rakousko

Utajení

není předmětem státního či obchodního tajemství

Odkazy

stránka konference

Kód RIV

RIV/00216224:14740/15:00085383

Organizační jednotka

Středoevropský technologický institut

Klíčová slova anglicky

laser; induced; breakdown; spectroscopy; distribution; mapping; quantum dots; nanoparticles;

Změněno: 12. 2. 2016 14:38, doc. Mgr. Karel Novotný, Ph.D.

Anotace

V originále

Distribution mapping of nanoparticles (NPs) and quantum dots (QDs) using LIBS was optimized in order to achieve best spatial resolution and lowest detection limits. The dependence of the LIBS signal intensity on the volume and concentration of the injected NPs onto different substrates was investigated in detail. Modified ablation system New Wave UP-266 MACRO with Nd:YAG laser operating at 4th harmonic wavelength of 266 nm was equipped with chromatographic paper or polystyrene microplates holder. Software-controlled movement in x,y direction enabled scanning of the sample surface. In double pulse orthogonal configuration the second re-heating laser pulse with fundamental wavelength of 1064 nm (Quantel, Brilliant) was delivered to the primary plasma plume using two mirrors in the periscope arrangement allowing precise laser beam positioning. Samples were measured in the air at atmospheric pressure. Single pulse LIBS in 2D mapping mode was investigated for detection of silver (10 nm diameter) and gold (5 nm diameter) NPs. Detection limits (LOD) after injection solution onto polystyrene plate for Ag and Au NPs were found 0.01 and 0.3 ng per µl resp. LIBS in double pulse configuration was developed for the distribution mapping of Cd after injection of CdS QDs onto the carrier material. The best signal to noise (S/N) ratio and spatial resolution were achieved using the chromatographic paper as a carrier material and emission line Cd (I) 508.58 nm. LOD of Cd at pmol levels were obtained. The observed absolute LOD for Cd in CdTe QDs conjugates with metallothionein (MT) in one spot was 3 ng. The immunoanalysis in combination with LIBS was also investigated and Cd spatial distribution in sandwich immunoassay was detected. Due to the immediate signal response, relatively simply instrumentation and automation LIBS offers promising and fast alternative to other techniques in NPs detection and also in immunoassay (especially with high repetition rate laser and detector).

Návaznosti

ED1.1.00/02.0068, projekt VaV

Název: CEITEC - central european institute of technology

Citovat

NOVOTNÝ, Karel, Marie NOVOTNÁ, Aleš HRDLIČKA, Pavel KOPEL, Jozef KAISER, René KIZEK a Vojtěch ADAM. Distribution mapping of metal-based nanoparticles by Laser-Induced Breakdown Spectroscopy. In 8th Euro-Mediterranean Symposium on Laser Induced Breakdown Spectroscopy. 2015.

@proceedings{1322073,
   author = {Novotný, Karel and Novotná, Marie and Hrdlička, Aleš and Kopel, Pavel and Kaiser, Jozef and Kizek, René and Adam, Vojtěch},
   booktitle = {8th Euro-Mediterranean Symposium on Laser Induced Breakdown Spectroscopy},
   keywords = {laser; induced; breakdown; spectroscopy; distribution; mapping; quantum dots; nanoparticles;},
   language = {eng},
   title = {Distribution mapping of metal-based nanoparticles by Laser-Induced Breakdown Spectroscopy},
   url = {http://emslibs2015.jku.at/},
   year = {2015}
}

TY  - CONF
ID  - 1322073
AU  - Novotný, Karel - Novotná, Marie - Hrdlička, Aleš - Kopel, Pavel - Kaiser, Jozef - Kizek, René - Adam, Vojtěch
PY  - 2015
TI  - Distribution mapping of metal-based nanoparticles by Laser-Induced Breakdown Spectroscopy
KW  - laser
KW  - induced
KW  - breakdown
KW  - spectroscopy
KW  - distribution
KW  - mapping
KW  - quantum dots
KW  - nanoparticles;
UR  - http://emslibs2015.jku.at/
L2  - http://emslibs2015.jku.at/
N2  - Distribution mapping of nanoparticles (NPs) and quantum dots (QDs) using LIBS was optimized in order to achieve best spatial resolution and lowest detection limits. The dependence of the LIBS signal intensity on the volume and concentration of the injected NPs onto different substrates was investigated in detail. Modified ablation system New Wave UP-266 MACRO with Nd:YAG laser operating at 4th harmonic wavelength of 266 nm was equipped with chromatographic paper or polystyrene microplates holder. Software-controlled movement in x,y direction enabled scanning of the sample surface. In double pulse orthogonal configuration the second re-heating laser pulse with fundamental wavelength of 1064 nm (Quantel, Brilliant) was delivered to the primary plasma plume using two mirrors in the periscope arrangement allowing precise laser beam positioning. Samples were measured in the air at atmospheric pressure. Single pulse LIBS in 2D mapping mode was investigated for detection of silver (10 nm diameter) and gold (5 nm diameter) NPs. Detection limits (LOD) after injection solution onto polystyrene plate for Ag and Au NPs were found 0.01 and 0.3 ng per µl resp. LIBS in double pulse configuration was developed for the distribution mapping of Cd after injection of CdS QDs onto the carrier material. The best signal to noise (S/N) ratio and spatial resolution were achieved using the chromatographic paper as a carrier material and emission line Cd (I) 508.58 nm. LOD of Cd at pmol levels were obtained. The observed absolute LOD for Cd in CdTe QDs conjugates with metallothionein (MT) in one spot was 3 ng. The immunoanalysis in combination with LIBS was also investigated and Cd spatial distribution in sandwich immunoassay was detected. Due to the immediate signal response, relatively simply instrumentation and automation LIBS offers promising and fast alternative to other techniques in NPs detection and also in immunoassay (especially with high repetition rate laser and detector).
ER  -

NOVOTNÝ, Karel, Marie NOVOTNÁ, Aleš HRDLIČKA, Pavel KOPEL, Jozef KAISER, René KIZEK a Vojtěch ADAM. Distribution mapping of metal-based nanoparticles by Laser-Induced Breakdown Spectroscopy. In \textit{8th Euro-Mediterranean Symposium on Laser Induced Breakdown Spectroscopy}. 2015.

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