Hydrogel encapsulated magnetic nanoparticles as hyperthermic actuators for microrobots designed to operate in the vascular network

Tabatabaei, Seyed Nasrollah; Lapointe, Jacinthe

doi:10.1109/iros.2009.5354162

Cited by 7 publications

(9 citation statements)

References 23 publications

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“…Transmission electron microscopy of a ultrasmall superparamagnetic iron oxide sample showing that the crystal core size of the particles is about 5 nm similar to Tabatabaei et al [28]. were obtained from the source organs used in dosimetry calculations; we tried to estimate the effective radiation absorbed dose into human organs following intravenous administration of 67 Ga-DTPA-USPIO using biodistribution data from normal Balb/c mice.…”

Section: Nmmentioning

confidence: 83%

Estimated background doses of [67Ga]-DTPA-USPIO in normal Balb/c mice as a potential therapeutic agent for liver and spleen cancers

Shanehsazzadeh

Oghabian

Lahooti³

et al. 2013

Nuclear Medicine Communications

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Section: Nmmentioning

confidence: 83%

Estimated background doses of [67Ga]-DTPA-USPIO in normal Balb/c mice as a potential therapeutic agent for liver and spleen cancers

Shanehsazzadeh

Oghabian

Lahooti³

et al. 2013

Nuclear Medicine Communications

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“…Closely related application of the same hidrogel was also reported for the case, when Fe 3 O 4 nanoparticles, embedded in microrobots, can be used for propulsion and tracking in the human vascular network using an MRI platform. 64 The same magnetic nanoparticles can also be exploited to perform as hyperthermic actuators. When embedded in N-isopropylacrylamide thermo responsive hydrogel, vascular microrobots capable of changing their size to adapt to various diameters of blood vessels could be synthesized.…”

Section: Adsorbents On the Basis Of Polymersmentioning

confidence: 99%

Magnetic adsorbents based on micro- and nano-structured materials

2015

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Micro-and nano-sized magnetic adsorbents on the basis of elemental metals, iron oxides, and ferrites, supported by inorganic (carbon, graphene, silica, zeolites) or organic (macromolecules, polysaccharides, polymers, biomolecules) compounds, are reviewed. Main attention is paid to magnetic hydrogels, xerogels, and aerogels due to their high number of environmental and biomedical applications. Role of carbohydrates and polysaccharides (starch, alginic acid, chitosan, etc.) for stabilization of magnetic nanoparticles and use the formed composites for adsorbtion purposes is described. Magnetic adsorbents are mainly used for heavy metals removal, separation, destruction and adsorption of oil, dyes, toxic organic compounds, several biomolecules and drugs, as well as widely in the catalytic processes. These last applications of magnetic adsorbents, in particular ferrites, are emphasized. Their main advantage for these or other possible applications is that the adsorbent or catalyst can be easily removed from reaction media after adsorption or completion of reactions via a simple magnet. Magnetic behavior studies of magnetic adsorbents are also discussed.

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“…Nowadays, hyperthermia is a well-known method of adjuvant cancer therapy, especially in addition to standard radiotherapy [1,2], although the induction heating of substances has long been thoroughly studied [3][4][5][6][7][8][9][10]. Scientific papers showed that hyperthermia improves the killing of tumor cells known to be radioresistant [11] and the combination of radiotherapy with hyperthermia increases cytotoxic effects [12].…”

Section: Introductionmentioning

confidence: 99%

“…In addition, there is a requirement to generate a certain amount of heat per gram of magnetic material (magnetite), called the specific absorption coefficient (SAR) [8]. This value must be controlled, as well as the degree and rate of heating.…”

Section: Introductionmentioning

confidence: 99%

Theoretical modelling of temperature changes during induction heating of magnetite suspensions

Saliy

Lishchynskyy

Tatarchuk

2022

Phys. Chem. Solid St.

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Although now it is customary to use magnetic hyperthermia in the treatment of oncological diseases as an auxiliary method, detailed modeling of the tissue heating process with parameters close to real ones will allow this method to be included in the main ones. Modelling of liquid heating with evenly distributed identical energy sources was presented. It allows choosing the optimal modes of using hyperthermia in real conditions. The model is based on experimental data and explains the dependence of the temperature of magnetite particles’ aqueous suspension versus the time. Newton's law equations were used for modelling of dependence of body temperature versus time at a constant temperature Tenv. It was hypothesized that the overheating problem could be avoided by using controlled concentrations of magnetite. The obtained results show that about 40 mg/cm3 of magnetite is required to avoid overheating.

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Hydrogel encapsulated magnetic nanoparticles as hyperthermic actuators for microrobots designed to operate in the vascular network

Cited by 7 publications

References 23 publications

Estimated background doses of [67Ga]-DTPA-USPIO in normal Balb/c mice as a potential therapeutic agent for liver and spleen cancers

Estimated background doses of [67Ga]-DTPA-USPIO in normal Balb/c mice as a potential therapeutic agent for liver and spleen cancers

Magnetic adsorbents based on micro- and nano-structured materials

Theoretical modelling of temperature changes during induction heating of magnetite suspensions

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