Role of Magnetic Anisotropy on the Hyperthermia Efficiency in Spherical Fe3−xCoxO4 (x = 0–1) Nanoparticles
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MDPI
2021
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| Truy cập trực tuyến: | https://www.mdpi.com/2076-3417/11/3/930 https://dlib.phenikaa-uni.edu.vn/handle/PNK/1731 https://doi.org/10.3390/app11030930 |
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oai:localhost:PNK-17312022-08-17T05:54:41Z Role of Magnetic Anisotropy on the Hyperthermia Efficiency in Spherical Fe3−xCoxO4 (x = 0–1) Nanoparticles Das, Raja Pham, Kim Ngoc Attanayake, Supun B. Phan, Manh-Huong Srikanth, Hariharan hyperthermia magnetic anisotropy nanoparticles magneocrystalline Q1 The use of magnetic nanoparticles in the treatment of cancer using alternating current hyperthermia therapy has shown the potential to replace or supplement conventional cancer treatments, radiotherapy and chemotherapy, which have severe side effects. Though the nearly spherical sub-10 nm iron oxide nanoparticles have their approval from the US Food and Drug Administration, their low heating efficiency and removal from the body after hyperthermia treatment raises serious concerns. The majority of magnetic hyperthermia research is working to create nanomaterials with improved heating efficiency and long blood circulation time. Here, we have demonstrated a simple strategy to enhance the heating efficiency of sub-10 nm Fe3O4 nanoparticles through the replacement of Fe+2 ions with Co+2 ions. Magnetic and hyperthermia experiments on the 7 nm Fe3−xCoxO4 (x = 0–1) nanoparticles showed that the blocking temperature, the coercivity at 10 K, and the specific absorption rate followed a similar trend with a maximum at x = 0.75, which is in corroboration with the theoretical prediction. Our study revealed that the heating efficiency of the Fe3−xCoxO4 (x = 0–1) nanoparticles varies not just with the size and saturation magnetization but also with the magnetocrystalline anisotropy of the particles. 2021-06-14T04:38:43Z 2021-06-14T04:38:43Z 2021 Article Working Paper https://www.mdpi.com/2076-3417/11/3/930 https://dlib.phenikaa-uni.edu.vn/handle/PNK/1731 https://doi.org/10.3390/app11030930 en application/pdf MDPI |
| institution |
Digital Phenikaa |
| collection |
Digital Phenikaa |
| language |
English |
| topic |
hyperthermia magnetic anisotropy nanoparticles magneocrystalline |
| spellingShingle |
hyperthermia magnetic anisotropy nanoparticles magneocrystalline Das, Raja Role of Magnetic Anisotropy on the Hyperthermia Efficiency in Spherical Fe3−xCoxO4 (x = 0–1) Nanoparticles |
| description |
Q1 |
| author2 |
Pham, Kim Ngoc |
| author_facet |
Pham, Kim Ngoc Das, Raja |
| format |
Article |
| author |
Das, Raja |
| author_sort |
Das, Raja |
| title |
Role of Magnetic Anisotropy on the Hyperthermia Efficiency in Spherical Fe3−xCoxO4 (x = 0–1) Nanoparticles |
| title_short |
Role of Magnetic Anisotropy on the Hyperthermia Efficiency in Spherical Fe3−xCoxO4 (x = 0–1) Nanoparticles |
| title_full |
Role of Magnetic Anisotropy on the Hyperthermia Efficiency in Spherical Fe3−xCoxO4 (x = 0–1) Nanoparticles |
| title_fullStr |
Role of Magnetic Anisotropy on the Hyperthermia Efficiency in Spherical Fe3−xCoxO4 (x = 0–1) Nanoparticles |
| title_full_unstemmed |
Role of Magnetic Anisotropy on the Hyperthermia Efficiency in Spherical Fe3−xCoxO4 (x = 0–1) Nanoparticles |
| title_sort |
role of magnetic anisotropy on the hyperthermia efficiency in spherical fe3−xcoxo4 (x = 0–1) nanoparticles |
| publisher |
MDPI |
| publishDate |
2021 |
| url |
https://www.mdpi.com/2076-3417/11/3/930 https://dlib.phenikaa-uni.edu.vn/handle/PNK/1731 https://doi.org/10.3390/app11030930 |
| _version_ |
1751856295042875392 |
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8.891787 |