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DC Field | Value | Language |
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dc.citation.endPage | 2155 | - |
dc.citation.startPage | 2148 | - |
dc.citation.title | EUROPEAN JOURNAL OF INORGANIC CHEMISTRY | - |
dc.citation.volume | 12 | - |
dc.contributor.author | An, Kwangjin | - |
dc.contributor.author | Park, Mihyun | - |
dc.contributor.author | Yu, Jung Ho | - |
dc.contributor.author | Na, Hyon Bin | - |
dc.contributor.author | Lee, Nohyun | - |
dc.contributor.author | Park, Jongnam | - |
dc.contributor.author | Choi, Seung Hong | - |
dc.contributor.author | Song, In Chan | - |
dc.contributor.author | Moon, Woo Kyung | - |
dc.contributor.author | Hyeon, Taeghwan | - |
dc.date.accessioned | 2023-12-22T05:12:07Z | - |
dc.date.available | 2023-12-22T05:12:07Z | - |
dc.date.created | 2015-07-28 | - |
dc.date.issued | 2012-04 | - |
dc.description.abstract | We synthesized manganese oxide (MnO and Mn 3O 4) nanocrystals with various sizes and shapes by the thermal reaction of a Mn II-oleate complex through a "heat-up process". When a Mn II-oleate complex was thermally decomposed in non-coordinating hydrocarbon solvents, uniformly sized MnO nanocrystals with cubic and octahedral shapes were produced. We were able to synthesize anisotropic, multibranched MnO nanocrystals by the oriented attachment of MnO truncated-nanocube building blocks. When the Mn II-oleate complex was heated in 1-hexadecene in the presence of strongly coordinating carboxylic acid surfactants, spherical nanocrystals were generated, and their diameter was controlled in the range 3-13 nm by varying the chain length of the carboxylic acid. When oleyl alcohol was added to the Mn-oleate complex in phenyl ether, tetrahedral MnO nanocrystals were synthesized. The as-synthesized MnO nanocrystals were oxidized in air to Mn 3O 4 or MnO/Mn 3O 4 core-shell structures, which exhibited exchange coupling with shifted magnetic hysteresis loops. The effect of the size and shape of the phospholipid-capped manganese oxide nanocrystals on their applicability as T 1 contrast agents in magnetic resonance imaging (MRI) were examined. As the size of the nanocrystals decreased, their relaxivities increased, thereby generating brighter MR images. In particular, spherical 3 nm-sized Mn 3O 4 nanocrystals had a high specific relaxivity (r 1) of 2.38 mM -1 s -1, clearly demonstrating their potential for use as an efficient T 1 MRI contrast agent. Manganese oxide nanocrystals with various sizes and shapes were synthesized by thermal decomposition of a Mn-oleate complex. The effect of the size and shape of the phospholipid-capped nanocrystalson their applicability as T 1 contrast agents in magnetic resonance imaging (MRI) was examined. As their size decreased, their specific relaxivities increased, which generated brighter MR images. Copyright © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. | - |
dc.identifier.bibliographicCitation | EUROPEAN JOURNAL OF INORGANIC CHEMISTRY, v.12, pp.2148 - 2155 | - |
dc.identifier.doi | 10.1002/ejic.201101193 | - |
dc.identifier.issn | 1434-1948 | - |
dc.identifier.scopusid | 2-s2.0-84859909901 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/12828 | - |
dc.identifier.url | http://onlinelibrary.wiley.com/doi/10.1002/ejic.201101193/abstract | - |
dc.identifier.wosid | 000302861900027 | - |
dc.language | 영어 | - |
dc.publisher | WILEY-V C H VERLAG GMBH | - |
dc.title | Synthesis of Uniformly Sized Manganese Oxide Nanocrystals with Various Sizes and Shapes and Characterization of Their T1 Magnetic Resonance Relaxivity | - |
dc.type | Article | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Inorganic & Nuclear | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordAuthor | Manganese | - |
dc.subject.keywordAuthor | Nanoparticles | - |
dc.subject.keywordAuthor | Thermal decomposition | - |
dc.subject.keywordAuthor | Heat-up process | - |
dc.subject.keywordAuthor | Imaging agents | - |
dc.subject.keywordPlus | ONE-POT SYNTHESIS | - |
dc.subject.keywordPlus | IRON-OXIDE | - |
dc.subject.keywordPlus | CONTRAST AGENT | - |
dc.subject.keywordPlus | EXCHANGE BIAS | - |
dc.subject.keywordPlus | MONODISPERSE NANOCRYSTALS | - |
dc.subject.keywordPlus | NONAQUEOUS SYNTHESIS | - |
dc.subject.keywordPlus | ORIENTED ATTACHMENT | - |
dc.subject.keywordPlus | MN3O4 NANOCRYSTALS | - |
dc.subject.keywordPlus | CHEMICAL-SYNTHESIS | - |
dc.subject.keywordPlus | MNO NANOPARTICLES | - |
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