Institute of Physics SAS – Insulin (Premium-Silver)

The graph shows the SERS spectrum of Insulin at mM and pM concentrations on S-Silver substrates.

Laser wavelength: 785 nm
Laser power: 5 mW
Integration time: raster image scan, 5 s / 1.25 mm
Raman Spectrometer: WITec Alpha300 R+
Lens magnification: 20x
Sampling method: drop
The substrate used: Premium-Silver hydrophilic (interchangeably, you can use one of our substrates)

SERS spectra of Insulin on Premium-Silver obtained by Farnoush Salehtash, and Dr. Adriana Annušová
Institute of Physics (Department of Multilayers and Nanostructures)
Centre of Excellence for Advanced Materials Application
Slovak Academy of Sciences