Correlating Magnetic Hyperthermia and Magnetic Resonance Imaging Contrast Performance of Cubic Iron Oxide Nanoparticles with Crystal Structural Integrity.

التفاصيل البيبلوغرافية
العنوان:	Correlating Magnetic Hyperthermia and Magnetic Resonance Imaging Contrast Performance of Cubic Iron Oxide Nanoparticles with Crystal Structural Integrity.
المؤلفون:	Shingte SD; School of Chemistry, University College Dublin, Dublin 4, Ireland., Phakatkar AH; Department of Biomedical Engineering, University of Illinois at Chicago, Chicago, Illinois 60607, United States., McKiernan E; School of Chemistry, University College Dublin, Dublin 4, Ireland., Nigoghossian K; School of Chemistry, University College Dublin, Dublin 4, Ireland., Ferguson S; School of Chemical and Bioprocess Engineering, University College Dublin, Dublin 4, Ireland., Shahbazian-Yassar R; Department of Mechanical and Industrial Engineering, University of Illinois at Chicago, Chicago, Illinois 60607-7042, United States., Brougham DF; School of Chemistry, University College Dublin, Dublin 4, Ireland.
المصدر:	Chemistry of materials : a publication of the American Chemical Society [Chem Mater] 2022 Dec 27; Vol. 34 (24), pp. 10801-10810. Date of Electronic Publication: 2022 Aug 11.
نوع المنشور:	Journal Article
اللغة:	English
بيانات الدورية:	Publisher: The Society Country of Publication: United States NLM ID: 9884133 Publication Model: Print-Electronic Cited Medium: Print ISSN: 0897-4756 (Print) Linking ISSN: 08974756 NLM ISO Abbreviation: Chem Mater Subsets: PubMed not MEDLINE
أسماء مطبوعة:	Original Publication: Washington, DC : The Society, c1989-
مستخلص:	Magnetic iron oxide nanoparticles have multiple biomedical applications in AC-field hyperthermia and magnetic resonance imaging (MRI) contrast enhancement. Here, two cubic particle suspensions are analyzed in detail, one suspension displayed strong magnetic heating and MRI contrast efficacies, while the other responded weakly. This is despite them having almost identical size, morphology, and colloidal dispersion. Aberration-corrected scanning transmission electron microscopy, electron energy loss spectroscopy, and high-resolution transmission electron microscopy analysis confirmed that the spinel phase Fe 3 O 4 was present in both samples and identified prominent crystal lattice defects for the weakly responding one. These are interpreted as frustrating the orientation of the moment within the cubic crystals. The relationship between crystal integrity and the moment magnitude and dynamics is elucidated for the case of fully dispersed single nanocubes, and its connection with the emergent hyperthermia and MRI contrast responses is established. Competing Interests: The authors declare no competing financial interest. (© 2022 The Authors. Published by American Chemical Society.)
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تواريخ الأحداث:	Date Created: 20230102 Latest Revision: 20230111
رمز التحديث:	20240628
مُعرف محوري في PubMed:	PMC9798828
DOI:	10.1021/acs.chemmater.2c00708
PMID:	36590705
قاعدة البيانات:	MEDLINE

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الوصف
تدمد:	0897-4756
DOI:	10.1021/acs.chemmater.2c00708