Plasmonics enhances the sensitivity of smartphone microscopy

Illustrations and photographs of the mobile phone surface-enhanced fluorescence microscopy device. (a) 3D illustration of the smartphone attachment with the cutaway view of the inner sample stage. (b) Schematic of the Kretschmann configuration implemented in the smartphone attachment. (c,d) Photographs of the hemisphere-embedded sample tray and silver thin film substrate, before (c) and after (d) loading of the silvercoated substrate onto the hemisphere. (e,f) Photographs of the final prototype device from different perspective views. Credit: UCLA Ozcan Research Group