Departmental Papers (BE)

Document Type

Conference Paper

Date of this Version

9-3-2009

Abstract

Composites of nanoparticles and polymers are finding wide applications to alter material properties, conductivity, and utility. Here, we show that nano-composites can be designed to heat in the presence of near infrared light. This process is useful in transitioning materials through a transition temperature for a range of applications. For example, 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 and may be useful in a range of applications from aerospace to fabrics, to biomedical devices and microsystem components. 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.

Comments

Copyright 2009 IEEE. Reprinted from:

Hribar, Kolin C.; Metter, Robert B.; Burdick, Jason A., "Novel nano-composite biomaterials that respond to light," Engineering in Medicine and Biology Society, 2009. EMBC 2009. Annual International Conference of the IEEE , vol., no., pp.2409-2411, 3-6 Sept. 2009

Publisher URL: http://ieeexplore.ieee.org/stamp/stamp.jsp?arnumber=5334763&isnumber=5332379

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Date Posted: 11 December 2009