Since its discovery in the 1970s, SERS has been an effective tool for sensitive label-free chemical sensing by measuring the vibrations of molecules in test samples. SERS is advantageous in instrument size, easy use, and cost performance than X-ray diffraction, nuclear magnetic resonance spectroscopy, and mass spectrometry. SERS provides several orders of magnitude higher sensitivity than inherently weak Raman scattering by exciting localized surface plasmon resonance on metal substrates.

However, the benefit of SERS is compromised by its poor sensing reproducibility, surface uniformity, bio-compatibility, and durability due to its dependence on "hot spots" for high Raman signal enhancement from engineered metal nanostructures, the generation of large photothermal heat on the metal nanostructures that causes detrimental effects to biological molecules (e.g., heat-induced protein denaturation), and the oxidization of the metal surface.

Our unique SERS technology, in particular metal-free polymer-carbon SERS technology, overcomes these problems, offers previously unattainable capabilities, and takes SERS to the next level. Consequently, we are bringing chemical sensing innovations to you.