Highly efficient thermogenesis from Fe3O4 nanoparticles for thermoplastic material repair both in air and underwater

2017 ◽  
Vol 5 (3) ◽  
pp. 1221-1232 ◽  
Author(s):  
Xiangyu Yin ◽  
Yue Zhang ◽  
Peng Lin ◽  
Yupeng Liu ◽  
Zuankai Wang ◽  
...  
Keyword(s):  
Fe3o4 Nanoparticles ◽  
Photothermal Effect ◽  
Thermoplastic Material ◽  
Highly Efficient ◽  
Fe3o4 Nps ◽  
The Matrix

A robust photothermal healing method relies on the NIR photothermal effect of Fe3O4 NPs in the matrix. It allows thermoplastic materials and coatings to be repaired in air, and the coatings to be repaired more effectively underwater.

scholarly journals Photothermal Effect of Superparamagnetic Fe3O4 Nanoparticles Irradiated by Near-Infrared Laser

2020 ◽  
Vol 2020 ◽  
pp. 1-8
Author(s):  
Shawei Fu ◽  
Yuchun Man ◽  
Fuquan Jia
Keyword(s):  
Cancer Treatment ◽  
Power Density ◽  
Infrared Absorption ◽  
Fe3o4 Nanoparticles ◽  
Near Infrared ◽  
Infrared Laser ◽  
Photothermal Effect ◽  
Transduction Efficiency ◽  
Large Power ◽  
Fe3o4 Nps

Fe3O4 nanoparticles (NPs) have been widely used in biomedicine due to their unique magnetism, biocompatibility, and biodegradability. Magnetic hyperthermia of Fe3O4 NPs for cancer treatment has attracted more attention. However, it could interfere with magnetic field-sensitive devices of patients, such as pacemakers. Therefore, it is necessary to find a new method for clinical therapy. In this study, the superparamagnetic Fe3O4 NPs were fabricated. Visible-near-infrared absorption spectra indicated that the Fe3O4 NPs have near-infrared absorption. The influences of Fe3O4 NP concentrations, power density, and wavelength of near-infrared laser irradiation on the photothermal performance of Fe3O4 NPs were investigated. The results revealed that high concentrations, large power density, and short irradiation wavelength could improve the photothermal performance of Fe3O4 NPs. The temperature variation and the absorption intensity simultaneously determined the photothermal transduction efficiency of Fe3O4 NPs. The application of the photothermal performance of Fe3O4 NPs would provide a new opportunity for clinic cancer treatment.

scholarly journals Curcumin Along With Fe3O4 Nanoparticles Improved Sperm Parameters In Rats With Testicular Ischemia

2021 ◽  
Vol 10 ◽  
pp. e2034
Author(s):  
Shabnam Zarei Moradi ◽  
Seyed Abdolhamid Angaji ◽  
Mitra Salehi ◽  
Mehrdad Hashemi
Keyword(s):  
Fe3o4 Nanoparticles ◽  
Sperm Concentration ◽  
Concomitant Administration ◽  
Testicular Tissue ◽  
Sperm Parameters ◽  
Male Rats ◽  
Semen Parameters ◽  
Control Group ◽  
Fe3o4 Nps ◽  
Testicular Ischemia

Background: Ischemic/reperfusion (I/R) in testicular tissue is one reason for the worldwide increase in male infertility. In the present study, we assessed the effects of curcumin and Fe3O4 nanoparticles (NPs) on sperm parameters in rats with I/R damage. Materials and Methods: Forty-eight adult male rats were divided into two groups (n=24 per group): control and torsion/detorsion. The control and torsion/detorsion groups were divided into four subgroups include sham, Fe3O4 NPs, curcumin, and Fe3O4 NPs+curcumin. After the rats were sacrificed, semen was collected from their epididymal tissues to assess sperm viability, motility, concentration, and morphology. Results: Curcumin significantly improved viability, motility, and normal sperm morphology in rats with I/R damage compared to the control group; however, it did not have a significant effect on sperm concentration (P<0.001). Fe3O4 NPs alone decreased all sperm parameters in the control and I/R rats (P<0.001). However, concomitant administration of Fe3O4 nanoparticles with curcumin significantly improved sperm parameters in rats with I/R damage (P<0.001). Conclusion: The increase in all semen parameters in the experimental groups with concomitant use of Fe3O4 NPs plus curcumin indicated that green synthesis of NPs could be recommended for future clinical studies.

Photoluminescence and photothermal effect of Fe3O4 nanoparticles for medical imaging and therapy

2014 ◽  
Vol 105 (9) ◽  
pp. 091903 ◽  
Author(s):  
M. E. Sadat ◽  
Masoud Kaveh Baghbador ◽  
Andrew W. Dunn ◽  
H. P. Wagner ◽  
Rodney C. Ewing ◽  
...  
Keyword(s):  
Medical Imaging ◽  
Fe3o4 Nanoparticles ◽  
Photothermal Effect

scholarly journals NATURE INSPIRED SYNTHESIS, PHYSICO-CHEMICAL CHARACTERIZATION OF Zn DOPED Fe3O4 NANOPARTICLES USING ANDROGRAPHIS PANICULATA (BURM. F.) NEES LEAF EXTRACT AND ASSESSMENT OF IN VITRO PANCREATIC ALPHA AMYLASE INHIBITORY ACTIVITY

2020 ◽  
pp. 229-235
Author(s):  
A. S. SAKTHI ATHITHAN ◽  
J. JEYASUNDARI ◽  
D. RENUGA ◽  
A. NAVEENA
Keyword(s):  
Magnetite Nanoparticles ◽  
Fe3o4 Nanoparticles ◽  
Chemical Characterization ◽  
Transition Element ◽  
Average Crystallite Size ◽  
Xrd Analysis ◽  
Andrographis Paniculata ◽  
X Ray ◽  
Fe3o4 Nps

Objective: Magnetite (Fe3O4) nanoparticles (NPs) have gained considerable attention in the Biomedical filed. Evolution of new magnetic material based on the transition metal-doped magnetite has become the subject of increasing research interest. The main aim of the current investigation was to improve the diabetic potential, optical, magnetic, structural properties of magnetite nanoparticles and hence Fe3O4 NPs were doped with a divalent transition element such as Zinc. Methods: Zinc doped magnetite nanoparticles (Zn-Fe3O4 NPs) were obtained through Co-precipitation methods using aqueous plant extract of Andrographis paniculata acted as an efficient stabilizer and a reducing agent. The structure, morphology, crystalline, optical and magnetic property of synthesized Zn-Fe3O4 NPs were evaluated by X-ray diffraction (XRD), Scanning electron microscopy with Energy dispersive x-ray spectroscopy(SEM-EDX), Fourier transform infrared spectroscopy (FTIR), Ultraviolet-Visible (UV-Vis) Spectrophotometer and Vibrating scanning magnetometer (VSM). Results: In XRD analysis, the average crystallite size of the synthesized Zn-Fe3O4 NPs was found to be 5 nm exhibiting super paramagnetic behavior, which composes it an appealing possibility for biomedicines. The Zn-Fe3O4 NPs had strongly inhibited the alpha (α)-amylase enzyme and had proved their therapeutic role. Conclusion: In conclusion, Zn-Fe3O4 NPs is an excellent anti-diabetic agent to control type 2 diabetes mellitus.

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