Superparamagnetic CoFe2O4@Au with High Specific Absorption Rate and Intrinsic Loss Power for Magnetic Fluid Hyperthermia Applications

Sabale, Sandip; Jadhav, Vidhya; Mane‐Gavade, Shubhangi; Yu, Xiao‐Ying

doi:10.1007/s40195-018-0830-5

Cited by 21 publications

(9 citation statements)

References 24 publications

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“…As mentioned in our earlier report [29], the heating abilities of the single-particle are attributed to the power loss caused by hysteresis and relaxation losses for single domain NPs. In superparamagnetic NPs, the power loss is the root of only relaxations which are attributed due to the Neel and Brown relaxations which are major contributors to the SAR values.…”

Section: Induction Heating Studies and Determination Of Sar And Ilp Vsupporting

confidence: 55%

“…Co/Mn/ZnFe 2 O 4 MNPs were synthesized using the complex decomposition method reported in our previous work [29]. Briefly, metal precursors of Co/Mn/Zn (2 mmol) are mixed separately in a solution of Fe(acac) 3 in a mixture of diethylene glycol and ethylene glycol (10 mL each) containing oleylamine and oleic acid (6 mmol each) followed by purging with N 2 at 120 °C for 10 min.…”

Section: Synthesis Of Mfe 2 O 4 Mnpsmentioning

confidence: 99%

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Magneto-structural and induction heating properties of MFe2O4 (M = Co, Mn, Zn) MNPs for magnetic particle hyperthermia application

Salokhe¹,

Koli²,

Jadhav³

et al. 2020

SN Appl. Sci.

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The complex decomposition approach was used for the synthesis of MFe 2 O 4 magnetic nanoparticles (MNPs) by substituting M as Co, Mn, and Zn. The obtained MNPs were characterized for magneto-structural properties using X-Ray diffraction patterns, FTIR, Raman and Mossbauer spectroscopy techniques which validate the synthesis of phase pure cubic spinel ferrite (space group Fd3m) with five Raman active modes. Magnetic properties confirmed using Mossbauer spectroscopy. The size, morphology, and compositional analysis was performed using HRTEM and EDX where the size of MNPs was found to be less than 10 nm that attains superparamagnetism with 39.0, 58.28, and 44.24 emu gm −1 moment for CoFe 2 O 4 , MnFe 2 O 4 , and ZnFe 2 O 4 , respectively. The magnetic hyperthermia performance of obtained MNPs was evaluated by induction heating experiments at magnetic field range 13.3-26.7 kAm −1. The specific absorption rate (SAR) and intrinsic loss power (ILP) values were determined at different magnetic fields and mutually related with magneto-structural properties to evaluate its potential for magnetic particle hyperthermia therapy. The CoFe 2 O 4 MNP exhibits a maximum temperature rise of 25 and 35 °C for 5 and 10 mgmL −1 concentrations with threshold temperature rise.

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Section: Induction Heating Studies and Determination Of Sar And Ilp Vsupporting

confidence: 55%

Section: Synthesis Of Mfe 2 O 4 Mnpsmentioning

confidence: 99%

Magneto-structural and induction heating properties of MFe2O4 (M = Co, Mn, Zn) MNPs for magnetic particle hyperthermia application

Salokhe¹,

Koli²,

Jadhav³

et al. 2020

SN Appl. Sci.

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“…[ 267 ] The primary heat generation mechanism must also be taken into consideration, as Brownian motion of the nanomaterials are environmentally dependent, it is more beneficial to design magnetic hyperthermia nanomaterials, which rely predominately on Neel relaxation for heat generation as they will be more consistent for clinical use where the media surrounding the nanomaterials in vivo will be highly varied due to factors such as location of treatment. Additionally, the materials utilized thus far have been limited mostly to Fe 3 O 4 , while there is evidence in the literature of additional composites of materials which may have beneficial properties, such as CoFe 2 O 4 @Au, [ 268 ] Cu–Ni, [ 269 ] Co 1− x Zn x Fe 2 O 4+ γ , [ 270 ] and Mn x Zn y [Fe 2− z Gd z ]O 4 . [ 271 ]…”

Section: Magnetic Activated Antimicrobial Metal Nanomaterialsmentioning

confidence: 99%

Antimicrobial Metal Nanomaterials: From Passive to Stimuli‐Activated Applications

et al. 2020

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The development of antimicrobial drug resistance among pathogenic bacteria and fungi is one of the most significant health issues of the 21st century. Recently, advances in nanotechnology have led to the development of nanomaterials, particularly metals that exhibit antimicrobial properties. These metal nanomaterials have emerged as promising alternatives to traditional antimicrobial therapies. In this review, a broad overview of metal nanomaterials, their synthesis, properties, and interactions with pathogenic micro‐organisms is first provided. Secondly, the range of nanomaterials that demonstrate passive antimicrobial properties are outlined and in‐depth analysis and comparison of stimuli‐responsive antimicrobial nanomaterials are provided, which represent the next generation of microbiocidal nanomaterials. The stimulus applied to activate such nanomaterials includes light (including photocatalytic and photothermal) and magnetic fields, which can induce magnetic hyperthermia and kinetically driven magnetic activation. Broadly, this review aims to summarize the currently available research and provide future scope for the development of metal nanomaterial‐based antimicrobial technologies, particularly those that can be activated through externally applied stimuli.

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“…Apart from the basic ferromagnetic nanomaterials for antibacterial uses reviewed earlier, people have recently reported metal-bearing nanocomposites, coupling magnetothermal components with other functional entities. ,− For example, Bigham et al successfully synthesized a mesoporous Mg 2 SiO 4 –CuFe 2 O 4 magnetic nanocomposite with a core–shell structure. They showed that this nanocomposite exhibited good magnetothermal properties, leading to effective antibacterial effects against Escherichia coli (Figure a).…”

Section: External Stimuli-activated On-demand Antibacterial Strategiesmentioning

confidence: 99%

Stimuli-Activable Metal-Bearing Nanomaterials and Precise On-Demand Antibacterial Strategies

et al. 2022

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Bacterial infections remain the leading cause of death worldwide today. The emergence of antibiotic resistance has urged the development of alternative antibacterial technologies to complement or replace traditional antibiotic treatments. In this regard, metal nanomaterials have attracted great attention for their controllable antibacterial functions that are less prone to resistance. This review discusses a particular family of stimuli-activable metal-bearing nanomaterials (denoted as SAMNs) and the associated on-demand antibacterial strategies. The various SAMN-enabled antibacterial strategies stem from basic light and magnet activation, with the addition of bacterial microenvironment responsiveness and/or bacteriatargeting selectivity and therefore offer higher spatiotemporal controllability. The discussion focuses on nanomaterial design principles, antibacterial mechanisms, and antibacterial performance, as well as emerging applications that desire on-demand and selective activation (i.e., medical antibacterial treatments, surface anti-biofilm, water disinfection, and wearable antibacterial materials). The review concludes with the authors' perspectives on the challenges and future directions for developing industrial translatable next-generation antibacterial strategies.

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Superparamagnetic CoFe2O4@Au with High Specific Absorption Rate and Intrinsic Loss Power for Magnetic Fluid Hyperthermia Applications

Cited by 21 publications

References 24 publications

Magneto-structural and induction heating properties of MFe2O4 (M = Co, Mn, Zn) MNPs for magnetic particle hyperthermia application

Magneto-structural and induction heating properties of MFe2O4 (M = Co, Mn, Zn) MNPs for magnetic particle hyperthermia application

Antimicrobial Metal Nanomaterials: From Passive to Stimuli‐Activated Applications

Stimuli-Activable Metal-Bearing Nanomaterials and Precise On-Demand Antibacterial Strategies

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