Metal nanoshells are a new addition to a growing “toolbox” of subwavelength optical components, such as quantum dots, other metal nanostructures such as nanorods or nanospheres, colloid-based photonic crystals, and polymer nanostructures. The author describes the use of nanoshells to inhibit photo-oxidation in conducting polymers, and the development of a nanoshell-hydrogel composite with a dramatic optomechanical response with applications in laser-controlled drug delivery.
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Naomi J. Halas (2002) studied this question.