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Ultra-sensitive biosensing with dielectric nanoantennas

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Abstract

We demonstrate new direction in biosensing based on bio-compatible, non-toxic, robust and low-loss dielectric nanoantennas. Using biotin-coated silicon nanodisks with optically-induced magnetic resonances we detect streptavidin with concentration as low as 10−10 mol/L.

© 2016 Optical Society of America

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