Ravi Mawale, Mayuri Vilas Ausekar, David Pavliňák, Oleksandr Galmiz, Pavel Kubáček, Josef Havel

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F15%3A00087742" target="_blank" >RIV/00216224:14310/15:00087742 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

čeština

Original language name

Ravi Mawale, Mayuri Vilas Ausekar, David Pavliňák, Oleksandr Galmiz, Pavel Kubáček, Josef Havel

Original language description

Gold-iron or gold-iron oxide nano-particles (NPs) are of particular importance because of their bio diagnostic and medicinal applications. Applying either plasma (8.3 kHz) or laser (1064 nm) radiation we produced a kind of Au-Fe nano-composite, in case of plasma a giant gold nano flowers (1-2 000 nm). The product was analysed by EDX and SEM. Mass spectrometry with LDI (laser 337 nm) yields single charged AumFen± (m = 1-35; n = 1-3) clusters. Structures of clusters in neutral and monocharged forms were designed by DFT calculations (ADF; scalar relativistic ZORA geometry optimization). The structures in local minima of potential energy surface always have Fe atoms coordinated to several Au atoms (most often to 4 to 6) and posses few odd electrons (4 to 9).The distances of a Fe nucleus from adjacent Au nuclei lie in the interval 2.5 – 2.7 .

Czech name

Ravi Mawale, Mayuri Vilas Ausekar, David Pavliňák, Oleksandr Galmiz, Pavel Kubáček, Josef Havel

Czech description

Gold-iron or gold-iron oxide nano-particles (NPs) are of particular importance because of their bio diagnostic and medicinal applications. Applying either plasma (8.3 kHz) or laser (1064 nm) radiation we produced a kind of Au-Fe nano-composite, in case of plasma a giant gold nano flowers (1-2 000 nm). The product was analysed by EDX and SEM. Mass spectrometry with LDI (laser 337 nm) yields single charged AumFen± (m = 1-35; n = 1-3) clusters. Structures of clusters in neutral and monocharged forms were designed by DFT calculations (ADF; scalar relativistic ZORA geometry optimization). The structures in local minima of potential energy surface always have Fe atoms coordinated to several Au atoms (most often to 4 to 6) and posses few odd electrons (4 to 9).The distances of a Fe nucleus from adjacent Au nuclei lie in the interval 2.5 – 2.7 .

Type

O - Miscellaneous

CEP classification

CB - Analytical chemistry, separation

OECD FORD branch

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Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2015

Confidentiality

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