PMID- 22905527
OWN - NLM
STAT- MEDLINE
DCOM- 20120913
LR  - 20190715
IS  - 1533-4880 (Print)
IS  - 1533-4880 (Linking)
VI  - 12
IP  - 6
DP  - 2012 Jun
TI  - New magnetic fluid developed with natural organic compounds biocompatible.
PG  - 4757-61
AB  - This work was developed with an aqueous suspension of maghemite nanoparticles and 
      colloidal emulsions with nanoparticles of magnetite. The nanoparticles were 
      synthesized by co-precipitation method. The first was the magnetic emulsion 
      nanoparticles of maghemite dispersed in the aqueous extract obtained from the 
      leaf embauba (Cecropia Obtusifolia), whose tree is native to Central and South 
      America. Thereby achieving the magnetic fluid extract embauba stabilized with 
      ionic buffer solution pH 7.4. A second emulsion was prepared with colloidal 
      magnetite nanoparticles with surfaces previously coated with oleic acid as a 
      means of dispersing and using the oil extracted from in nature seed Andiroba 
      (Carapa Guianensis), tree of the Brazilian Amazon. These new magnetic fluids the 
      nanoparticles were characterized by Photoacoustic spectroscopy (PAS) to determine 
      the coating layer of molecules on the surfaces of nanoparticles. In aqueous ionic 
      magnetic fluid Cecropia Obtusifolia (MFCO) chlorogenic acid contributes to the 
      electron density in the presence of four groups alcohols, a ketone group and a 
      carboxylic group. In magnetic fluid-based oil andiroba MFAD PAS spectra show that 
      oleic acid molecules are tightly linked on the surface of the nanoparticles.
FAU - Santos, J G
AU  - Santos JG
AD  - Laboratorio de Nanomateriais e Nanobiomagnetismo-LNBIOMAG, Universidade Federal 
      de Rondonia, Porto velho, RO 76900-900, Brazil.
FAU - Silveira, L B
AU  - Silveira LB
FAU - Fegueredo, P H S
AU  - Fegueredo PH
FAU - Araujo, B F
AU  - Araujo BF
FAU - Peternele, W S
AU  - Peternele WS
FAU - Rodriguez, A F R
AU  - Rodriguez AF
FAU - Vilela, E C
AU  - Vilela EC
FAU - Garg, V K
AU  - Garg VK
FAU - Oliveira, A C
AU  - Oliveira AC
FAU - Azevedo, R B
AU  - Azevedo RB
FAU - Morais, P C
AU  - Morais PC
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PL  - United States
TA  - J Nanosci Nanotechnol
JT  - Journal of nanoscience and nanotechnology
JID - 101088195
RN  - 0 (Biocompatible Materials)
RN  - 0 (Ferric Compounds)
RN  - 0 (Magnetite Nanoparticles)
RN  - 0 (Organic Chemicals)
RN  - 0 (Plant Oils)
RN  - 0 (Solutions)
RN  - 1K09F3G675 (ferric oxide)
SB  - IM
MH  - Biocompatible Materials/*chemistry
MH  - Ferric Compounds/*chemistry
MH  - Magnetic Fields
MH  - Magnetite Nanoparticles/*chemistry/ultrastructure
MH  - Materials Testing
MH  - Organic Chemicals/*chemistry
MH  - Plant Oils/*chemical synthesis
MH  - Solutions/*chemical synthesis
EDAT- 2012/08/22 06:00
MHDA- 2012/09/14 06:00
CRDT- 2012/08/22 06:00
PHST- 2012/08/22 06:00 [entrez]
PHST- 2012/08/22 06:00 [pubmed]
PHST- 2012/09/14 06:00 [medline]
AID - 10.1166/jnn.2012.4917 [doi]
PST - ppublish
SO  - J Nanosci Nanotechnol. 2012 Jun;12(6):4757-61. doi: 10.1166/jnn.2012.4917.