Matching plasmon resonances to the C=C and C-H bonds in estradiol

Ifeoma G. Mbomson; Scott McMeekin; Richard De La Rue; Nigel P. Johnson

doi:10.1117/12.2081409

11 March 2015 Matching plasmon resonances to the C=C and C-H bonds in estradiol

Ifeoma G. Mbomson, Scott McMeekin, Richard De La Rue, Nigel P. Johnson

Proceedings Volume 9340, Plasmonics in Biology and Medicine XII; 93400G (2015) https://doi.org/10.1117/12.2081409
Event: SPIE BiOS, 2015, San Francisco, California, United States

Abstract

We tune nanoantennas to resonate within mid-infrared wavelengths to match the vibrational resonances of C=C and C-H of the hormone estradiol. Modelling and fabrication of the nanoantennas produce plasmon resonances between 2 μm to 7 μm. The hormone estradiol was dissolved in ethanol and evaporated, leaving thickness of a few hundreds of nanometres on top of gold asymmetric split H-like shaped on a fused silica substrate. The reflectance was measured and a red-shift is recorded from the resonators plasmonic peaks. Fourier transform infrared spectroscopy is use to observe enhanced spectra of the stretching modes for the analyte which belongs to alkenyl biochemical group.

Citation Download Citation

Ifeoma G. Mbomson, Scott McMeekin, Richard De La Rue, and Nigel P. Johnson "Matching plasmon resonances to the C=C and C-H bonds in estradiol", Proc. SPIE 9340, Plasmonics in Biology and Medicine XII, 93400G (11 March 2015); https://doi.org/10.1117/12.2081409

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