Single-molecule localization microscopy(SMLM)aims for maximized precision and a high signal-to-noise ratio1.Both features can be provided by placing the emitter in front of a metal-dielectric nanocoating that acts as ...Single-molecule localization microscopy(SMLM)aims for maximized precision and a high signal-to-noise ratio1.Both features can be provided by placing the emitter in front of a metal-dielectric nanocoating that acts as a tuned mirror2–4.Here,we demonstrate that a higher photon yield at a lower background on biocompatible metal-dielectric nanocoatings substantially improves SMLM performance and increases the localization precision by up to a factor of two.The resolution improvement relies solely on easy-to-fabricate nanocoatings on standard glass coverslips and is spectrally and spatially tunable by the layer design and wavelength,as experimentally demonstrated for dual-color SMLM in cells.展开更多
基金supported by the Deutsche Forschungsgemeinschaft(DFG,German Research Foundation)TRR 166 projects A04(to M.S.)and C06(to K.G.H.)the Rudolf Virchow Center of the University of Würzburg(H.S.H.)+2 种基金the Elite Network of Bavaria(ENB)with project K-BM-2013-247(to B.S.)the University of Würzburg(M.E.,M.K.,S.H.,and R.G.)the State of Bavaria(clean room facilities).
文摘Single-molecule localization microscopy(SMLM)aims for maximized precision and a high signal-to-noise ratio1.Both features can be provided by placing the emitter in front of a metal-dielectric nanocoating that acts as a tuned mirror2–4.Here,we demonstrate that a higher photon yield at a lower background on biocompatible metal-dielectric nanocoatings substantially improves SMLM performance and increases the localization precision by up to a factor of two.The resolution improvement relies solely on easy-to-fabricate nanocoatings on standard glass coverslips and is spectrally and spatially tunable by the layer design and wavelength,as experimentally demonstrated for dual-color SMLM in cells.
