Detailed Information on Publication Record
2017
Laser Desorption Ionization Quadrupole Ion Trap Time-of-Flight Mass Spectrometry of AumFen+/– Clusters Generated from Gold-Iron Nanoparticles and their Giant Nanoflowers. Electrochemical and/or Plasma Assisted Synthesis
MAWALE, Ravi, Mayuri Vilas AUSEKAR, David PAVLIŇÁK, Oleksandr GALMIZ, Pavel KUBÁČEK et. al.Basic information
Original name
Laser Desorption Ionization Quadrupole Ion Trap Time-of-Flight Mass Spectrometry of AumFen+/– Clusters Generated from Gold-Iron Nanoparticles and their Giant Nanoflowers. Electrochemical and/or Plasma Assisted Synthesis
Authors
MAWALE, Ravi (356 India, belonging to the institution), Mayuri Vilas AUSEKAR (356 India, belonging to the institution), David PAVLIŇÁK (203 Czech Republic, belonging to the institution), Oleksandr GALMIZ (804 Ukraine, belonging to the institution), Pavel KUBÁČEK (203 Czech Republic, belonging to the institution) and Josef HAVEL (203 Czech Republic, guarantor, belonging to the institution)
Edition
Journal of The American Society for Mass Spectrometry, New York, Springer, 2017, 1044-0305
Other information
Language
English
Type of outcome
Článek v odborném periodiku
Field of Study
10305 Fluids and plasma physics
Country of publisher
United States of America
Confidentiality degree
není předmětem státního či obchodního tajemství
References:
Impact factor
Impact factor: 2.869
RIV identification code
RIV/00216224:14310/17:00094575
Organization unit
Faculty of Science
UT WoS
000392319600001
Keywords in English
Mass spectrometry;Nanoparticles;Nanoflowers;Plasma-assisted;Stainless steel;Laser desorption ionization
Tags
International impact, Reviewed
Změněno: 6/4/2018 11:02, Ing. Nicole Zrilić
Abstract
V originále
Gold nanoparticles (NP) with average diameter 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 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 2.5 at%. Laser desorption ionization (LDI) of both nanomaterials and mass spectrometric analysis show the formation of AumFen+/– (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 A. 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.
Links
ED2.1.00/03.0086, research and development project |
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GA13-05082S, research and development project |
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LO1411, research and development project |
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