PMID- 24547941
OWN - NLM
STAT- MEDLINE
DCOM- 20150601
LR  - 20140807
IS  - 1520-5215 (Electronic)
IS  - 1089-5639 (Linking)
VI  - 118
IP  - 31
DP  - 2014 Aug 7
TI  - Potentiated electron transference in alpha-Ag2WO4 microcrystals with Ag nanofilaments 
      as microbial agent.
PG  - 5769-78
LID - 10.1021/jp410564p [doi]
AB  - This study is a framework proposal for understanding the antimicrobacterial 
      effect of both alpha-Ag2WO4 microcrystals (AWO) synthesized using a microwave 
      hydrothermal (MH) method and alpha-Ag2WO4 microcrystals with Ag metallic 
      nanofilaments (AWO:Ag) obtained by irradiation employing an electron beam to 
      combat against planktonic cells of methicillin-resistant Staphylococcus aureus 
      (MRSA). These samples were characterized by X-ray diffraction (XRD), FT-Raman 
      spectroscopy, ultraviolet visible (UV-vis) measurements, field emission scanning 
      electron microscopy (FE-SEM), transmission electron microscopy (TEM), and high 
      resolution transmission electron microscopy (HRTEM). The results reveal that both 
      AWO and AWO:Ag solutions have bacteriostatic and bactericidal effects, but the 
      irradiated sample is more efficient; i.e., a 4-fold of the MRSA planktonic cells 
      as compared to the nonirradiated sample was observed. In addition, first 
      principles calculations were performed to obtain structural and electronic 
      properties of AWO and metallic Ag, which provides strong quantitative support for 
      an antimicrobacterial mechanism based on the enhancement of electron transfer 
      processes between alpha-Ag2WO4 and Ag nanoparticles.
FAU - Longo, Valeria M
AU  - Longo VM
AD  - INCTMN-USP, Universidade de Sao Paulo, Instituto de Fisica de Sao Carlos , 
      13560-970 Sao Carlos, SP, Brazil.
FAU - De Foggi, Camila C
AU  - De Foggi CC
FAU - Ferrer, Mateus M
AU  - Ferrer MM
FAU - Gouveia, Amanda F
AU  - Gouveia AF
FAU - Andre, Rafaela S
AU  - Andre RS
FAU - Avansi, Waldir
AU  - Avansi W
FAU - Vergani, Carlos E
AU  - Vergani CE
FAU - Machado, Ana L
AU  - Machado AL
FAU - Andres, Juan
AU  - Andres J
FAU - Cavalcante, Laecio S
AU  - Cavalcante LS
FAU - Hernandes, Antonio C
AU  - Hernandes AC
FAU - Longo, Elson
AU  - Longo E
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20140305
PL  - United States
TA  - J Phys Chem A
JT  - The journal of physical chemistry. A
JID - 9890903
RN  - 0 (Anti-Bacterial Agents)
RN  - 0 (Silver Compounds)
SB  - IM
MH  - Anti-Bacterial Agents/*chemistry
MH  - Computer Simulation
MH  - Electrons
MH  - Metal Nanoparticles/*chemistry
MH  - Methicillin-Resistant Staphylococcus aureus/drug effects/radiation effects
MH  - Microbial Sensitivity Tests
MH  - Microscopy, Electron, Scanning
MH  - Microscopy, Electron, Transmission
MH  - Models, Chemical
MH  - Silver Compounds/*chemistry
MH  - Spectrum Analysis, Raman
MH  - X-Ray Diffraction
EDAT- 2014/02/20 06:00
MHDA- 2015/06/02 06:00
CRDT- 2014/02/20 06:00
PHST- 2014/02/20 06:00 [entrez]
PHST- 2014/02/20 06:00 [pubmed]
PHST- 2015/06/02 06:00 [medline]
AID - 10.1021/jp410564p [doi]
PST - ppublish
SO  - J Phys Chem A. 2014 Aug 7;118(31):5769-78. doi: 10.1021/jp410564p. Epub 2014 Mar 
      5.