BROWSE

Related Researcher

Author's Photo

Son, Jae Sung
Nanomaterials Science and Engineering Lab (NSE)
Research Interests
  • Nanoparticle, 3D printing, Thermoelectrics, Electronics

ITEM VIEW & DOWNLOAD

Large-Scale Synthesis of Ultrathin Manganese Oxide Nanoplates and Their Applications to T1 MRI Contrast Agents

Cited 16 times inthomson ciCited 0 times inthomson ci
Title
Large-Scale Synthesis of Ultrathin Manganese Oxide Nanoplates and Their Applications to T1 MRI Contrast Agents
Author
Park, MihyunLee, NohyunChoi, Seung HongAn, KwangjinYu, Seung-HoKim, Jeong HyunKwon, Seung-HaeKim, DokyoonKim, HyoungsuBaek, Sung-IlAhn, Tae-YoungPark, Ok KyuSon, Jae SungSung, Yung-EunKim, Young-WoonWang, ZhongwuPinna, NicolaHyeon, Taeghwan
Issue Date
2011-07
Publisher
AMER CHEMICAL SOC
Citation
CHEMISTRY OF MATERIALS, v.23, no.14, pp.3318 - 3324
Abstract
Lamellar structured ultrathin manganese oxide nanoplates have been synthesized from thermal decomposition of manganese(II) acetylacetonate in the presence of 2,3-dihydroxynaphthalene, which promoted two-dimensional (2-D) growth by acting not only as a strongly binding surfactant but also as a structure-directing agent. Ultrathin manganese oxide nanoplates with a thickness of about 1 rim were assembled into a lamellar structure, and the width of the nanoplates could be controlled from 8 to 70 nm by using various coordinating solvents. X-ray absorption near-edge structure (XANES) spectra at the Mn K edge clearly showed that the nanoplates are mainly composed of Mn(II) species with octahedral symmetry. These hydrophobic manganese oxide nanoplates were ligand-exchanged with amine-terminated poly(ethyleneglycol) to generate water-dispersible nanoplates and applied to T1 contrast agents for magnetic resonance imaging (MRI). They exhibited a very high longitudinal relaxivity (r(1)) value of up to 5.5 mM(-1)s(-1) derived from their high concentration of manganese ions exposed on the surface, and strong contrast enhancement of in vitro and in vivo MR images was observed with a very low dose.
URI
https://scholarworks.unist.ac.kr/handle/201301/9718
URL
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=79960515455
DOI
10.1021/cm200414c
ISSN
0897-4756
Appears in Collections:
MSE_Journal Papers
ECHE_Journal Papers
Files in This Item:
There are no files associated with this item.

find_unist can give you direct access to the published full text of this article. (UNISTARs only)

Show full item record

qrcode

  • mendeley

    citeulike

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

MENU