Compact zwitterion-coated iron oxide nanoparticles for biological applications.
Compact zwitterion-coated iron oxide nanoparticles for biological applications.
复制标题
DOI:
10.1021/nl202721q
复制
发表时间:
2012-01-11
期刊:
影响因子:
10.8
通讯作者:
Bawendi MG
中科院分区:
文献类型:
--
作者:
Wei H;Insin N;Lee J;Han HS;Cordero JM;Liu W;Bawendi MG
The potential of superparamagnetic iron oxide nanoparticles (SPIONs) in various biomedical applications, including magnetic resonance imaging (MRI), sensing, and drug delivery, requires that their surface be derivatized to be hydrophilic and biocompatible. We report here the design and synthesis of a compact and water-soluble zwitterionic dopamine sulfonate (ZDS) ligand with strong binding affinity to SPIONs. After ligand exchange, the ZDS coated SPIONs exhibit small hydrodynamic diameters (HD), and stability with respect to time, pH, and salinity. Furthermore, small ZDS coated SPIONs were found to have a reduced non-specific affinity (compared to negatively charged SPIONs) towards serum proteins; streptavidin/dye functionalized SPIONs were bioactive and thus specifically targeted biotin receptors.
登录
查看更多内容
影响因子:
16.6
作者:
Yoon, Tae-Jong;Lee, Hakho;Shao, Huilin;Weissleder, Ralph
通讯作者:
Weissleder, Ralph
影响因子:
15
作者:
Peng, Sheng;Wang, Chao;Sun, Shouheng
通讯作者:
Sun, Shouheng
影响因子:
82.9
作者:
Lee, Jae-Hyun;Huh, Yong-Min;Cheon, Jinwoo
通讯作者:
Cheon, Jinwoo
影响因子:
15
作者:
Hyeon, T;Lee, SS;Bin Na, H
通讯作者:
Bin Na, H
影响因子:
10.8
作者:
Tromsdorf, Ulrich I.;Bruns, Oliver T.;Weller, Horst
通讯作者:
Weller, Horst