Mg shallow doping effects on the ac magnetic self-heating characteristics of γ-FeO superparamagnetic nanoparticles for highly efficient hyperthermia
Applied Physics Letters, ISSN: 0003-6951, Vol: 111, Issue: 18
2017
- 10Citations
- 8Captures
Metric Options: CountsSelecting the 1-year or 3-year option will change the metrics count to percentiles, illustrating how an article or review compares to other articles or reviews within the selected time period in the same journal. Selecting the 1-year option compares the metrics against other articles/reviews that were also published in the same calendar year. Selecting the 3-year option compares the metrics against other articles/reviews that were also published in the same calendar year plus the two years prior.
Example: if you select the 1-year option for an article published in 2019 and a metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019. If you select the 3-year option for the same article published in 2019 and the metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019, 2018 and 2017.
Citation Benchmarking is provided by Scopus and SciVal and is different from the metrics context provided by PlumX Metrics.
Example: if you select the 1-year option for an article published in 2019 and a metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019. If you select the 3-year option for the same article published in 2019 and the metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019, 2018 and 2017.
Citation Benchmarking is provided by Scopus and SciVal and is different from the metrics context provided by PlumX Metrics.
Article Description
The effects of Mg doping on the magnetic and AC self-heating temperature rising characteristics of γ-FeO superparamagnetic nanoparticles (SPNPs) were investigated for hyperthermia applications in biomedicine. The doping concentration of nonmagnetic Mg cation was systematically controlled from 0 to 0.15 at. % in Mg-γFeO SPNPs during chemically and thermally modified one-pot thermal decomposition synthesis under bubbling O/Ar gas mixture. It was empirically observed that the saturation magnetization (M) and the out-of-phase magnetic susceptibility (χm″) of Mg-γFeO SPNPs were increased by increasing the Mg cation doping concentration from 0.05 to 0.13 at. %. Correspondingly, the AC magnetically induced self-heating temperature (T) in solid state and the intrinsic loss power in water were increased up to 184 °C and 14.2 nH mkg (Mg-γFeO, x = 0.13), respectively, at the biologically and physiologically safe range of AC magnetic field (H × f = 1.2 × 10 A ms). All the chemically and physically analyzed results confirmed that the dramatically improved AC magnetic induction heating characteristics and the magnetic properties of Mg-γFeO SPNPs (x = 0.13) are primarily due to the significantly enhanced magnetic susceptibility (particularly, χm″) and the improved AC/DC magnetic softness (lower AC/DC magnetic anisotropy) resulting from the systematically controlled nonmagnetic Mg cation concentrations and distributions (occupation ratio) in the Fe vacancy sites of γ-FeO (approximately 12% vacancy), instead of typically well-known FeO (no vacancy) SPNPs. The cell viability and biocompatibility with U87 MG cell lines demonstrated that Mg-γFeO SPNPs (x = 0.13) has promising bio-feasibility for hyperthermia agent applications.
Bibliographic Details
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85032885309&origin=inward; http://dx.doi.org/10.1063/1.5000841; https://pubs.aip.org/apl/article/111/18/183703/34211/Mg-shallow-doping-effects-on-the-ac-magnetic-self; http://aip.scitation.org/doi/10.1063/1.5000841; https://aip.scitation.org/action/captchaChallenge?redirectUrl=https%3A%2F%2Faip.scitation.org%2Fdoi%2F10.1063%2F1.5000841
AIP Publishing
Provide Feedback
Have ideas for a new metric? Would you like to see something else here?Let us know