The fluorescence of ZnTe/CdSe/CdS core/shell/shell nanocrystals is altered by the presence of an external electric field, due to the influence of the field on separated charges in the type-II system via quantum confined Stark effect. This feature can be utilized for in vivo biolabeling/bioimaging to gain insight in certain neurological processes. Electric fields originating from impulses generated by the nervous system are capable of interacting with the aforementioned type-II nanostructures.1 The measured shift in the emission of the nanocrystals corresponding with these electric impulses can provide temporal information pertaining to the neurological mechanisms and functions of the biological system and are being employed to form a better understanding of degenerative diseases such as Alzheimer's. 1 Molokanova, E.; Bartel, J. A.; Zhao, W.; Naasani, I.; Ignatius M. J.; Treadway, J.A.; Savtchenko, A. Quantum Dots Move Beyond Fluorescence Imaging. Biophotonics International. 2008 , June

Application of the quantum confined Stark effect in type-II nanocrystals for in vivo bioimaging of neurological processes

243rd National Meeting (2012)

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