Supramolecular protein cage composite MR contrast agents with extremely efficient relaxivity properties.

Supramolecular protein cage composite MR contrast agents with extremely efficient relaxivity properties.
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DOI:
10.1021/nl902884p
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发表时间:
2009-12
期刊:
影响因子:
10.8
通讯作者:
Douglas T
Douglas T
中科院分区:
材料科学1区
文献类型:
--
作者:
Liepold LO;Abedin MJ;Buckhouse ED;Frank JA;Young MJ;Douglas T

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一种含二乙三胺五乙酸钆(DTPA - Gd)的聚合物在热休克蛋白笼内部生成,使得12纳米颗粒的T1弛豫率达到4200 mM⁻¹ s⁻¹。测定了弛豫参数,分析表明旋转相关时间已优化,而水交换寿命比最佳值慢。这种合成方法对下一代造影剂的开发很有前景,本报告将有助于它们的设计。
A DTPA-Gd containing polymer was grown in the interior of a heat shock protein cage resulting in T1 particle relaxivities of 4,200mM-1 sec-1 for the 12nm particle. Relaxivity parameters were determined and this analysis suggests that the rotational correlation time has been optimized while the water exchange life time is slower than optimal. This synthetic approach holds much promise for the development of next generation contrast agents and this report will aid in their design.
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