Light-induced temperature transitions in biodegradable polymer and nanorod composites.
Light-induced temperature transitions in biodegradable polymer and nanorod composites.
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DOI:
10.1002/smll.200900395
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发表时间:
2009-08-17
期刊:
影响因子:
13.3
通讯作者:
Burdick, Jason A.
中科院分区:
文献类型:
--
作者:
Hribar, Kolin C.;Metter, Robert B.;Ifkovits, Jamie L.;Troxler, Thomas;Burdick, Jason A.
Shape-memory materials (including polymers, metals, and ceramics) are those that are processed into a temporary shape and respond to some external stimuli (e.g., temperature) to undergo a transition back to a permanent shape. Shape memory polymers are finding use in a range of applications from aerospace to fabrics, to biomedical devices and microsystem components. For many applications, it would be beneficial to initiate heating with an external trigger (e.g., transdermal light exposure). In this work, we formulated composites of gold nanorods (<1% by volume) and biodegradable networks, where exposure to infrared light induced heating and consequently, shape transitions. The heating is repeatable and tunable based on nanorod concentration and light intensity and the nanorods did not alter the cytotoxicity or in vivo tissue response to the networks.
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DOI:
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影响因子:
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