Novel Fe3O4 nanoparticles-based DGT device for dissolved reactive phosphate measurement

2018 ◽  
Vol 42 (4) ◽  
pp. 2874-2881 ◽  
Author(s):  
Ya Zhang ◽  
Jieyao Song ◽  
Hongjian Zhou ◽  
Yunxia Zhang ◽  
Guozhong Wang
Keyword(s):  
Natural Water ◽  
Fe3o4 Nanoparticles ◽  
Reactive Phosphate ◽  
Binding Phase

The use of Fe3O4 nanoparticles as a liquid binding phase in DGT is demonstrated for the sampling measurement of dissolved reactive phosphate in natural water.

ECOLOGICAL ASPECTS OF DAGESTAN NATURAL WATER PROTECTION

2019 ◽  
Vol 77 (2) ◽  
pp. 55-59
Author(s):  
T.I., Abdulganieva ◽  
◽  
Sh.G. Samedov ◽  
S.A., Mamaev ◽  
A.S. Kurbanismailova ◽  
...  
Keyword(s):  
Natural Water ◽  
Water Protection ◽  
Ecological Aspects

Assessment of the Influence of the Invasive Species Pistia stratiotes (Araceae) on Some Species of Submerged Macrophytes of Natural Water Bodies of Ukraine

2017 ◽  
Vol 53 (5) ◽  
pp. 75-84
Author(s):  
O. P. Olkhovich ◽  
N. Yu. Taran ◽  
N. B. Svetlova ◽  
L. M. Batsmanova ◽  
M. V. Aleksiyenko ◽  
...  
Keyword(s):  
Invasive Species ◽  
Natural Water ◽  
Submerged Macrophytes ◽  
Water Bodies ◽  
Pistia Stratiotes ◽  
Natural Water Bodies

FERROMAGNETIC RESONANCE IN THE COMPLEX OF Fe3O4 NANOPARTICLES WITH ORGANIC COMPOUNDS

2018 ◽  
Vol 77 (3) ◽  
pp. 257-262
Author(s):  
А. S. Vakula ◽  
А. G. Belous ◽  
Т. V. Kalmykova ◽  
S. I. Petrushenko ◽  
V. N. Sukhov ◽  
...  
Keyword(s):  
Organic Compounds ◽  
Ferromagnetic Resonance ◽  
Fe3o4 Nanoparticles

Preparation and In-vitro Evaluation of Fe3O4 Encapsulated by Chitosan Loaded Capecitabine Nanoparticles for the Treatment of Breast Cancer

2016 ◽  
Vol 6 (3) ◽  
Author(s):  
Shanmuganathan S. ◽  
Nigma S. ◽  
Anbarasan B. ◽  
Harika B.
Keyword(s):  
Fe3o4 Nanoparticles ◽  
Polymer Concentration ◽  
In Vitro Release ◽  
Entrapment Efficiency ◽  
In Vitro Evaluation ◽  
Sem Image ◽  
Therapeutic Molecules ◽  
Dialysis Method ◽  
Vitro Release

Nanoparticulate Carriers which is biodegradable, biocompatible and bio adhesive have significant feasible applications for administration of therapeutic molecules. The present study was aimed to formulate and optimise Capecitabine loaded Chitosan-Fe3O4 Nanoparticles and to study the in-vitro evaluation by sigma dialysis method. Capecitabine loaded chitosan – Fe3O4 nanoparticles batches with different ratios of drug: polymer (1:1, 1:2, 1:3, 1:4, 1:5, 1:6) were prepared by ionic gelation method. Increase in polymer concentration increases the nanoparticle drug content. Entrapment efficiency was 60.12% with drug to polymer ratio F3 (1:3). In-vitro release was found to be 65.20% for 12 hrs. Capecitabine from chitosanFe3O4 nanoparticles SEM image reveals discrete spherical structure and particles with size range of 100-500nm. FTIR studies represent the functional groups present with no characteristics change in formulations. Samples stored at refrigerator conditions showed better stability compared with samples kept at other conditions during 8 weeks of storage.

Features of radiothermoluminescence of polypropylene and ethylene propylenediene elastomer SKEPT-4044 compositions with nanoscale metal-containing fillers

2020 ◽  
pp. 66-73
Author(s):  
A.M. Magerramov ◽  
◽  
N.I. Kurbanova ◽  
M.N. Bayramov ◽  
N.A. Alimirzoyeva ◽  
...  
Keyword(s):  
Transition Temperature ◽  
Molecular Mobility ◽  
Fe3o4 Nanoparticles ◽  
Low Temperatures ◽  
Frost Resistance ◽  
Relaxation Processes ◽  
Ethylene Propylene ◽  
Temperature Range ◽  
Β Relaxation

Using radiothermoluminescence (RTL), the molecular mobility features in the temperature range of 77-300 K were studied for the polypropylene (PP)/ethylene propylene diene elastomer SKEPT-4044 with NiO, Cu2O and Fe3O4 nanoparticles (NPs) based on ABS-acrylonitrile butadiene or SCS-divinyl styrene matrices. It has been shown that the introduction of nanofillers in PP significantly affects the nature and temperature of γ- and β-relaxation processes, while the region of manifestation of the β-process noticeably shifts to the region of low temperatures. Composites with Cu2O NPs have a higher β-transition temperature Tβ than composites with other NPs. It was found that PP/SKEPT-4044 composites with Cu2O NPs with a dispersion of 11-15 nm and acrylonitrile butadiene thermoplastics have optimal frost resistance compared to other compositions.

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