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Nanoengineering of fluorescence-based chemical sensors using electrostatic self-assembly: thin films and micro/nanoshells

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1 Author(s)
McShane, M.J. ; Inst. for Micromanufacturing, Louisiana Tech. Univ., Ruston, LA, USA

A general strategy for design and fabrication of nanoscale fluorescent sensors using electrostatic layer-by-layer assembly is presented. Using the approach of depositing oppositely-charged species onto colloidal micro/nanotemplates, two sensor systems employing fluorescent indicators and functional biomolecules are proposed: thin sensor films on solid carriers, and micro/nanocapsules containing sensing chemistry. Results demonstrating these concepts are described for ion (sodium and potassium), oxygen, and glucose sensors. The work suggests great potential for layer-by-layer architecture to fabricate nanostructured fluorescent sensors using nanoscale solid carriers and hollow microshells.

Published in:

Sensors, 2002. Proceedings of IEEE  (Volume:1 )

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