Biocompatibility of transition metal-substituted cobalt ferrite nanoparticles

Sanpo, Noppakun; Tharajak, Jirasak; Li, Yuncang; Berndt, C. C.; Wen, Cuié; Wang, James

doi:10.1007/s11051-014-2510-3

Cited by 52 publications

(22 citation statements)

References 27 publications

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“…The CoFe 2 O 4 is one of the most important nanoparticles which has a wide energy bandgap, semiconductor in nature and electrocatalytic in signature which makes it a suitable material in energy harvesting/storage and conversion [9,10], chemoresistive sensor [11], dye degradation [12] and pathogen detection [13]. Moreover, its magnetic property has attracted considerable attention in biomedical applications such as drug delivery, tissue repair, magnetic resonance imaging and magnetic fluid hyperthermia [14,15]. Recently, a size and shape-dependent bactericidal properties of NPs have been explored [16,17] which has endowed an increasing interest in the synthesis method of NPs as it plays a crucial role in determining the physicochemical properties of NPs.…”

Section: Introductionmentioning

confidence: 99%

Sol–gel auto-combustion mediated cobalt ferrite nanoparticles: a potential material for antimicrobial applications

et al. 2019

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In the era of nanotechnology, nanoparticles (NPs) of metals and metal oxides/chalcogenides are widely been used in medical applications where antibiotic-resistant microorganisms become a serious threat to the human health. Cobalt ferrite (CoFe 2 O 4) NPs, synthesized by a simple and cost-effective sol-gel auto-combustion method are envisaged for in vitro antimicrobial activities against Gram-positive bacteria (Bacillus subtilis; Staphylococcus aureus) and Gram-negative bacteria (Escherichia coli; Pseudomonas aeruginosa). The structure, morphology, elemental analyses and surface area of CoFe 2 O 4 NPs are initially screened. The antimicrobial efficiency of CoFe 2 O 4 NPs is found to be optimum against the Gram-negative bacteria Escherichia coli (15 mm). In addition, membrane leakage assays performed to evaluate the intracellular cytoplasmic leakage with CoFe 2 O 4 NPs demonstrate the ability to destroy the bacterial membrane integrity, confirming their antimicrobial potential.

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Section: Introductionmentioning

confidence: 99%

Sol–gel auto-combustion mediated cobalt ferrite nanoparticles: a potential material for antimicrobial applications

et al. 2019

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“…Despite the promising properties of this material, its use in biomedical application is debated due to the presence of cobalt. While for uncoated cobalt ferrite NPs a non-negligible toxicity is reported in the literature [13,14], the coating with silica or polymers strongly improves their biocompatibility [13,15,16]. However, a low residual toxicity is often still present, depending on the cellular line investigated and on the concentration of the NPs used [17,18].…”

Section: Introductionmentioning

confidence: 99%

Influence of cobalt doping on the hyperthermic efficiency of magnetite nanoparticles

Fantechi

Innocenti

Albino

et al. 2015

Journal of Magnetism and Magnetic Materials

109

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“…Nanostructured spinel ferrites have an enormous prospective material for several innovative scientific and technological applications [1][2][3]. Spinel ferrites are widely used in microwave devices [4], solar cells [5], magneto-strictive sensors [6], transducers [7], super-capacitors [8], power supplies for a large variety of electronic gadgets [9], drug delivery [10], memory devices [11], catalysis [12] and spintronics devices [13].…”

Section: Introductionmentioning

confidence: 99%

Sol–gel auto-ignition fabrication of Gd3+ incorporated Ni0.5Co0.5Fe2O4 multifunctional spinel ferrite nanocrystals and its impact on structural, optical and magnetic properties

Pawar¹,

Khirade

Vinayak³

et al. 2020

SN Appl. Sci.

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Monophasic nanocrystals of rare earth gadolinium (Gd 3+) ion doped nickel-cobalt ferrite, Ni 0.5 Co 0.5 Gd y Fe 2−y O 4 (y = 0.00, 0.025, 0.050, 0.075, 0.100 and 0.125) have been synthesized by l-ascorbic acid assisted sol-gel auto-ignition process. Thermogravimetric and differential scanning calorimetry, X-ray diffraction, Fourier transform infrared spectroscopy (FTIR), transmission electron microscopy (TEM) with selected area electron diffraction (SAED) patterns, ultraviolet-visible spectrophotometry and vibrating sample magnetometer were employed to characterize the microstructure, optical and magnetic properties. Structural investigations verified the presence of cubic spinel phase short of any contamination peak. The average crystallite size was seen in nano-regime dimensions and well confirmed by TEM results. SAED patterns showed bright and intense ring of (311) plane revealed the establishment of spinel ferrite nanocrystals. Lattice constant (a) increases steadily with the rise in Gd 3+ content following the Vegard's law. FTIR spectra confirmed the creation of spinel ferrite structural geometry. Saturation magnetization (M s) and a remanence magnetization (M r) decreased from 29.77 to 20.78 emu/g and 21.62 to 15.79 emu/g, respectively, with increasing the Gd 3+ content. However, coercivity (H c) is significantly increased. The highest value of H c = 1132 Oe was found for y = 0.075 sample. The reduction in M s values can be justified owing to the replacement of Fe 3+ existing at the octahedral [B]-sites by the Gd 3+ ions which is paramagnetic at room temperature. The elucidation of magnetic parameters with Gd 3+ doping was attributed to the discrepancy of anisotropy constant, the paramagnetic nature of Gd 3+ and crystallite size effect.

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Biocompatibility of transition metal-substituted cobalt ferrite nanoparticles

Cited by 52 publications

References 27 publications

Sol–gel auto-combustion mediated cobalt ferrite nanoparticles: a potential material for antimicrobial applications

Sol–gel auto-combustion mediated cobalt ferrite nanoparticles: a potential material for antimicrobial applications

Influence of cobalt doping on the hyperthermic efficiency of magnetite nanoparticles

Sol–gel auto-ignition fabrication of Gd3+ incorporated Ni0.5Co0.5Fe2O4 multifunctional spinel ferrite nanocrystals and its impact on structural, optical and magnetic properties

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