Aptamer-crosslinked microbubbles: smart contrast agents for thrombin-activated ultrasound imaging.

Aptamer-crosslinked microbubbles: smart contrast agents for thrombin-activated ultrasound imaging.
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DOI:
10.1002/adma.201201484
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发表时间:
2012-11-27
期刊:
影响因子:
29.4
通讯作者:
Goodwin, Andrew P.
Goodwin, Andrew P.
中科院分区:
材料科学1区
文献类型:
--
作者:
Nakatsuka, Matthew A.;Mattrey, Robert F.;Esener, Sadik C.;Cha, Jennifer N.;Goodwin, Andrew P.

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Thrombosis, or malignant blood clotting, is associated with numerous cardiovascular diseases and cancers. This report describes a microbubble contrast agent that produces ultrasound harmonic signal only when exposed to elevated thrombin levels. Silenced initially, microbubbles activated in the presence of both thrombin-spiked and freshly clotting blood in three minutes with detection limits of 20 nM thrombin and 2 aM microbubbles.
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