Laser Desorption Ionization Quadrupole Ion Trap Time-of-Flight Mass Spectrometry of Au (m) Fe (n) (+/-) Clusters Generated from Gold-Iron Nanoparticles and their Giant Nanoflowers. Electrochemical and/or Plasma Assisted Synthesis

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00159816%3A_____%2F17%3A00068493" target="_blank" >RIV/00159816:_____/17:00068493 - isvavai.cz</a>

Alternative codes found

RIV/00216224:14310/17:00094575

Result on the web

<a href="https://link.springer.com/content/pdf/10.1007%2Fs13361-016-1547-1.pdf" target="_blank" >https://link.springer.com/content/pdf/10.1007%2Fs13361-016-1547-1.pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s13361-016-1547-1" target="_blank" >10.1007/s13361-016-1547-1</a>

Result language

angličtina

Original language name

Laser Desorption Ionization Quadrupole Ion Trap Time-of-Flight Mass Spectrometry of Au (m) Fe (n) (+/-) Clusters Generated from Gold-Iron Nanoparticles and their Giant Nanoflowers. Electrochemical and/or Plasma Assisted Synthesis

Original language description

Gold nanoparticles (NP) with average diameter similar to 100 nm synthesized from tetrachloroauric acid solution using stainless steel as a reducing agent were found to contain iron. Applying simultaneously high frequency (HF) plasma discharge in solution during the electrochemical reduction, giant gold-iron nanoflowers with average size similar to 1000-5000 nm were formed. Scanning electron microscopy (SEM) shows the morphology of the nanopowders produced as polygonal yet nearly spherical, whereas iron content in both products determined by energy dispersive X-ray analysis (EDX) was found to be at similar to 2.5 at. %. Laser desorption ionization (LDI) of both nanomaterials and mass spectrometric analysis show the formation of Au (m) Fe (n) (+/-) (m = 1-35; n = 1-3) clusters. Structure of few selected clusters in neutral or monocharged forms were computed by density functional theory (DFT) calculations and it was found that typical distances of an iron nucleus from adjacent gold nuclei lie in the interval 2.5 to 2.7 . Synthetized Au-Fe nanoparticles were found stable for at least 2 mo at room temperature (even in aqueous solution) without any stabilizing agent. Produced Au-Fe nanoparticles in combination with standard MALDI matrices enhance ionization of peptides and might find use in nanomedicine.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10608 - Biochemistry and molecular biology

Project

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

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2017

Confidentiality

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

Name of the periodical

Journal of the American Society for Mass Spectrometry

ISSN

1044-0305

e-ISSN

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Volume of the periodical

28

Issue of the periodical within the volume

2

Country of publishing house

US - UNITED STATES

Number of pages

9

Pages from-to

215-223

UT code for WoS article

000392319600001

EID of the result in the Scopus database

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