Preparation of noble nanoparticles by sputtering - their characterization

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F44555601%3A13440%2F18%3A43894492" target="_blank" >RIV/44555601:13440/18:43894492 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60461373:22310/18:43916247 RIV/00216208:11110/18:10382376 RIV/00216208:11140/18:10382376

Výsledek na webu

<a href="http://chalcogen.ro/1035_PislovaM.pdf" target="_blank" >http://chalcogen.ro/1035_PislovaM.pdf</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Preparation of noble nanoparticles by sputtering - their characterization

Popis výsledku v původním jazyce

In this work we present gold (AuNPs) and platinum (PtNPs) nanoparticles prepared by direct sputtering into liquid medium polyethylene glycol (PEG) with molecular weight of 600 g Mol(-1). PEG was chosen for its properties and ability to stabilize NPs. The metal/PEG dispersions were mixed with water for their stabilization. This approach for nanoparticles preparation can be realized without harmful reducing agents or additional stabilizers and resulted in preparation of spherical AuNPs and rod PtNPs of the size below 10 nm. The D-0.9 diameter of AuNPs was 6.3 nm. On contrary, the D-0.9 diameter of PtNPs was 3.9 nm. The nanoparticles were characterized by transmission electron microscopy, atomic absorption spectroscopy, ultraviolet-visible spectroscopy and by dynamic light scattering. In vitro tests of cytotoxicity were carried out with prepared AuNPs and PtNPs and human osteoblastic cells and more cytotoxic effect was observed for AuNPs in comparison with PtNPs of similar concentrations.

Název v anglickém jazyce

Preparation of noble nanoparticles by sputtering - their characterization

Popis výsledku anglicky

In this work we present gold (AuNPs) and platinum (PtNPs) nanoparticles prepared by direct sputtering into liquid medium polyethylene glycol (PEG) with molecular weight of 600 g Mol(-1). PEG was chosen for its properties and ability to stabilize NPs. The metal/PEG dispersions were mixed with water for their stabilization. This approach for nanoparticles preparation can be realized without harmful reducing agents or additional stabilizers and resulted in preparation of spherical AuNPs and rod PtNPs of the size below 10 nm. The D-0.9 diameter of AuNPs was 6.3 nm. On contrary, the D-0.9 diameter of PtNPs was 3.9 nm. The nanoparticles were characterized by transmission electron microscopy, atomic absorption spectroscopy, ultraviolet-visible spectroscopy and by dynamic light scattering. In vitro tests of cytotoxicity were carried out with prepared AuNPs and PtNPs and human osteoblastic cells and more cytotoxic effect was observed for AuNPs in comparison with PtNPs of similar concentrations.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

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OECD FORD obor

20501 - Materials engineering

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2018

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Digest Journal of Nanomaterials and Biostructures

ISSN

1842-3582

e-ISSN

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Svazek periodika

13

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

RO - Rumunsko

Počet stran výsledku

10

Strana od-do

1035-1044

Kód UT WoS článku

000453096900014

EID výsledku v databázi Scopus

2-s2.0-85058133574