RT Journal Article
T1 Single Out-of-Resonance Dielectric Nanoparticles as Molecular Sensors
A1 Celiksoy, Sirin
A1 Ye, Weixiang
A1 Ahijado Guzmán, Rubén
A1 Sönnichsen, Carsten
AB Light scattering from single nanoparticles and nanostructures is a commonly used readout method for nanosensors. Increasing the spectral sensitivity of resonant nanosensors to changes in their local surrounding has been the focus of many studies. Switching from spectral to intensity monitoring allows one to investigate nonresonant or out-of-resonance dielectric nanoparticles. Here, we systematically compared such dielectric silica nanoparticles with plasmonic gold nanorods by deriving analytical expressions and by performing experiments. The experiments show a similar sensitivity for the detection of an adsorbate layer for both particle types, which is in good agreement with theory. The flat spectral response of dielectric silica nanoparticles simplifies the choice of illumination wavelength.
PB American Chemical Society
SN 2379-3694
YR 2021
FD 2021
LK https://hdl.handle.net/20.500.14352/92245
UL https://hdl.handle.net/20.500.14352/92245
LA eng
NO Celiksoy, S.; Ye, W.; Ahijado-Guzmán, R.; Sönnichsen, C. Single Out-of-Resonance Dielectric Nanoparticles as Molecular Sensors. ACS Sens. 2021, 6, 716-721 DOI:10.1021/acssensors.0c02629.
DS Docta Complutense
RD 10 abr 2025