Ultrahigh relaxivity and safe probes of manganese oxide nanoparticles for in vivo imaging.
Ultrahigh relaxivity and safe probes of manganese oxide nanoparticles for in vivo imaging.
复制标题
用于体内成像的氧化锰纳米颗粒的超高弛豫度和安全探针
DOI:
10.1038/srep03424
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发表时间:
2013-12-05
影响因子:
4.6
通讯作者:
Yang, G. W.
中科院分区:
文献类型:
--
作者:
Xiao, J.;Tian, X. M.;Yang, C.;Liu, P.;Luo, N. Q.;Liang, Y.;Li, H. B.;Chen, D. H.;Wang, C. X.;Li, L.;Yang, G. W.
Mn-based nanoparticles (NPs) have emerged as new class of probes for magnetic resonance imaging due to the impressive contrast ability. However, the reported Mn-based NPs possess low relaxivity and there are no immunotoxicity data regarding Mn-based NPs as contrast agents. Here, we demonstrate the ultrahigh relaxivity of water protons of 8.26 mM−1s−1 from the Mn3O4 NPs synthesized by a simple and green technique, which is twice higher than that of commercial gadolinium (Gd)-based contrast agents (4.11 mM−1s−1) and the highest value reported to date for Mn-based NPs. We for the first time demonstrate these Mn3O4 NPs biocompatibilities both in vitro and in vivo are satisfactory based on systematical studies of the intrinsic toxicity including cell viability of human nasopharyngeal carcinoma cells, normal nasopharyngeal epithelium, apoptosis in cells and in vivo immunotoxicity. These findings pave the way for the practical clinical diagnosis of Mn based NPs as safe probes for in vivo imaging.
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影响因子:
62.1
作者:
Louie, Angelique Y.
通讯作者:
Louie, Angelique Y.
影响因子:
14
作者:
Chen, Yu;Chen, Hangrong;Shi, Jianlin
通讯作者:
Shi, Jianlin
影响因子:
14
作者:
Huang, Chih-Chia;Khu, Ngee-Huat;Yeh, Chen-Sheng
通讯作者:
Yeh, Chen-Sheng
影响因子:
3.3
作者:
Liu, P.;Cui, H.;Yang, G. W.
通讯作者:
Yang, G. W.
影响因子:
1.9
作者:
Idee, Jean-Marc;Port, Marc;Corot, Claire
通讯作者:
Corot, Claire