Heat generation of surface-modified magnetic γ-Fe2O3 nanoparticles in applied alternating magnetic field

2017 ◽  
Vol 50 (34) ◽  
pp. 345002 ◽  
Author(s):  
Michal Babič ◽  
Daniel Horák ◽  
Matúš Molčan ◽  
Milan Timko
Keyword(s):  
Magnetic Field ◽  
Heat Generation ◽  
Alternating Magnetic Field ◽  
Fe2o3 Nanoparticles ◽  
Surface Modified

Size-controlled synthesis of superparamagnetic magnetite nanoclusters for heat generation in an alternating magnetic field

2019 ◽  
Vol 281 ◽  
pp. 315-323 ◽  
Author(s):  
Vinodha Ganesan ◽  
B.B. Lahiri ◽  
Cindrella Louis ◽  
John Philip ◽  
Shima P. Damodaran
Keyword(s):  
Magnetic Field ◽  
Heat Generation ◽  
Alternating Magnetic Field ◽  
Controlled Synthesis ◽  
Size Controlled

scholarly journals Tearable and Fillable Composite Sponges Capable of Heat Generation and Drug Release in Response to Alternating Magnetic Field

Materials ◽  
2020 ◽  
Vol 13 (16) ◽  
pp. 3637
Author(s):  
Koichiro Hayashi ◽  
Atsuto Tokuda ◽  
Jin Nakamura ◽  
Ayae Sugawara-Narutaki ◽  
Chikara Ohtsuki
Keyword(s):  
Magnetic Field ◽  
Drug Release ◽  
Heat Generation ◽  
Culture Medium ◽  
Surgical Repair ◽  
Thermal Therapy ◽  
Alternating Magnetic Field ◽  
Medium Temperature ◽  
Exogenous Trigger ◽  
Tissue Defects

Tearable and fillable implants are used to facilitate surgery. The use of implants that can generate heat and release a drug in response to an exogenous trigger, such as an alternating magnetic field (AMF), can facilitate on-demand combined thermal treatment and chemotherapy via remote operation. In this study, we fabricated tearable sponges composed of collagen, magnetite nanoparticles, and anticancer drugs. Crosslinking of the sponges by heating for 6 h completely suppressed undesirable drug release in saline at 37 °C but allowed drug release at 45 °C. The sponges generated heat immediately after AMF application and raised the cell culture medium temperature from 37 to 45 °C within 15 min. Heat generation was controlled by switching the AMF on and off. Furthermore, in response to heat generation, drug release from the sponges could be induced and moderated. Thus, remote-controlled heat generation and drug release were achieved by switching the AMF on and off. The sponges destroyed tumor cells when AMF was applied for 15 min but not when AMF was absent. The tearing and filling properties of the sponges may be useful for the surgical repair of bone and tissue defects. Moreover, these sponges, along with AMF application, can facilitate combined thermal therapy and chemotherapy.

In vitro heat generation by ferrimagnetic maghemite microspheres for hyperthermic treatment of cancer under an alternating magnetic field

2007 ◽  
Vol 19 (5) ◽  
pp. 1897-1903 ◽  
Author(s):  
Masakazu Kawashita ◽  
Shinjiro Domi ◽  
Yasuhiro Saito ◽  
Masaaki Aoki ◽  
Yukihiro Ebisawa ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Heat Generation ◽  
Alternating Magnetic Field ◽  
Hyperthermic Treatment

Heat generation in agglomerated ferrite nanoparticles in an alternating magnetic field

2012 ◽  
Vol 46 (4) ◽  
pp. 045002 ◽  
Author(s):  
E Lima ◽  
E De Biasi ◽  
M Vasquez Mansilla ◽  
M E Saleta ◽  
M Granada ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Heat Generation ◽  
Ferrite Nanoparticles ◽  
Alternating Magnetic Field
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