Application of Magnetosomes in Magnetic Hyperthermia

Usov, N. A.; Gubanova, Elizaveta M

doi:10.3390/nano10071320

Cited by 31 publications

(18 citation statements)

References 64 publications

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“…There is a significant pool of publications related to individual magnetosome nanoparticles and their uses in the biomedical field which were not a focus of our review. For instance, the magnetosome particles have been used in magnetic resonance imaging, magnetic hyperthermia, and drug delivery [ 27 , 120 , 121 , 122 , 123 , 124 , 125 , 126 ]. Finally, we recommend existing review papers related to magnetosome particles for further reading [ 17 , 127 , 128 , 129 , 130 , 131 ].…”

Section: Biomedical Applications Of Magnetic Nanochainsmentioning

confidence: 99%

Bioinspired Magnetic Nanochains for Medicine

Kralj

Marchesan

2021

Pharmaceutics

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Superparamagnetic iron oxide nanoparticles (SPIONs) have been widely used for medicine, both in therapy and diagnosis. Their guided assembly into anisotropic structures, such as nanochains, has recently opened new research avenues; for instance, targeted drug delivery. Interestingly, magnetic nanochains do occur in nature, and they are thought to be involved in the navigation and geographic orientation of a variety of animals and bacteria, although many open questions on their formation and functioning remain. In this review, we will analyze what is known about the natural formation of magnetic nanochains, as well as the synthetic protocols to produce them in the laboratory, to conclude with an overview of medical applications and an outlook on future opportunities in this exciting research field.

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Section: Biomedical Applications Of Magnetic Nanochainsmentioning

confidence: 99%

Bioinspired Magnetic Nanochains for Medicine

Kralj

Marchesan

2021

Pharmaceutics

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“…3) good control ability. The drug carrier matrix should be precisely controlled with the external effects [74] . Fortunately, MNRs can meet these criteria.…”

Section: Potential Functions and Applications Of Self‐assembly Micro‐mentioning

confidence: 99%

“…The drug carrier matrix should be precisely controlled with the external effects. [74] Fortunately, MNRs can meet these criteria. For instance, U Kei Cheang and Min Jun Kim employed external magnetic field to assemble magnetic nanoparticles into microswimmers.…”

Section: Drug Deliverymentioning

confidence: 99%

Self‐assembled Micro‐nanorobots: From Assembly Mechanisms to Applications

et al. 2021

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Due to the extremely tiny size, micro‐nanorobots hold promise in performing tasks at the micro‐nanoscale, which is impossible for macroscale robots. However, the massive fabrication of micro‐nanorobots is of crucial challenge and has been attracting extensive attention among academics. Active colloids can be self‐assembled into ordered structures, and offer a promising solution to this largescale manufacture challenge. Here, we summarize the development and mechanisms of different assembly technologies in the past two decades, and introduce the applications of micro‐nanorobots using self‐assembly strategies in biomedical and physical fields. For clarification, the self‐assembly mechanisms are presented in three categories: chemical, physical and biological. The manufacture of micro‐nanorobots through self‐assembly not only solves the problem of large‐scale manufacturing, but also increases the reconfigurability of structure and improves their adaptability to the environment, which promises further development as microsurgeons and the application of micro‐nanorobots in other fields, such as environmental restoration and micro‐manipulation.

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“…It is worth mentioning that in nature, some strains of magnetotactic bacteria can synthesize elongated magnetic nanoparticles [39][40][41]. Biogenic magnetic nanoparticles have a perfect crystal structure and narrow size distribution, which makes them potential agents for magnetic hyperthermia [27,42].…”

Section: Introductionmentioning

confidence: 99%

Heating ability of elongated magnetic nanoparticles

Gubanova¹,

Usov²,

Oleinikov³

2021

Preprint

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Low-frequency hysteresis loops and specific absorption rate (SAR) of various assemblies of elongated spheroidal magnetite nanoparticles have been calculated for a range of particle semiaxis ratios a/b = 1.0 – 3.0. The SAR of a dilute randomly oriented assembly of magnetite nanoparticles in an alternating magnetic field of moderate frequency, f = 300 kHz, and amplitude H0 = 100 - 200 Oe is shown to decrease significantly with an increase in the aspect ratio of nanoparticles. In addition, there is a narrowing and shift of the intervals of optimal particle diameters towards smaller particle sizes. However, the orientation of a dilute assembly of elongated nanoparticles in a magnetic field leads to an almost twofold increase in SAR at the same frequency and amplitude of the alternating magnetic field, the range of optimal particle diameters remaining unchanged. The effect of the magneto-dipole interaction on the SAR of an assembly of oriented clusters of elongated magnetite nanoparticles has also been investigated depending on the volume fraction of nanoparticles in a cluster. It has been found that the SAR of the assembly of oriented clusters decreases by approximately an order of magnitude with an increase in the volume fraction of nanoparticles in a cluster in the range 0.04 - 0.2.

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Application of Magnetosomes in Magnetic Hyperthermia

Cited by 31 publications

References 64 publications

Bioinspired Magnetic Nanochains for Medicine

Bioinspired Magnetic Nanochains for Medicine

Self‐assembled Micro‐nanorobots: From Assembly Mechanisms to Applications

Heating ability of elongated magnetic nanoparticles

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