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Research Papers

Optimal design of structured nanospheres for ultrasharp light-scattering resonances as molecular imaging multilabels

[+] Author Affiliations
Kun Chen, Yang Liu, Guillermo Ameer, Vadim Backman

Northwestern University, Department of Biomedical Engineering, Evanston, Illinois 60208 E-mail: v-backman@northwestern.edu

J. Biomed. Opt. 10(2), 024005 (Apr. 29, 2005). doi:10.1117/1.1899684
History: Received Feb. 23, 2004; Revised Jun. 15, 2004; Accepted Aug. 17, 2004; Apr. 29, 2005; Online April 29, 2005
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Optical molecular imaging could potentially enable noninvasive high-resolution characterization and diagnosis of living tissue. The capability to image multiple molecular targets simultaneously is particularly important. Currently this task cannot be achieved using conventional optical contrast agents, due to their broad spectral responses (∼80 to 200 nm). Developments in research on semiconductor nanocrystals (quantum dots) provide one possible solution. We describe a different concept of multilabel molecular imaging that utilizes resonant light-scattering spectroscopy of multilayered nanospheres to achieve tunable ultrasharp resonance peaks with widths as narrow as 10 nm. Our theoretical study demonstrates that dozens of molecular targets can potentially be imaged simultaneously using this approach. © 2005 Society of Photo-Optical Instrumentation Engineers.

© 2005 Society of Photo-Optical Instrumentation Engineers

Citation

Kun Chen ; Yang Liu ; Guillermo Ameer and Vadim Backman
"Optimal design of structured nanospheres for ultrasharp light-scattering resonances as molecular imaging multilabels", J. Biomed. Opt. 10(2), 024005 (Apr. 29, 2005). ; http://dx.doi.org/10.1117/1.1899684


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