Hier finden Sie wissenschaftliche Publikationen aus den Fraunhofer-Instituten.

Label-free biosensor based on an all-polymer DFB laser

: Heydari, E.; Buller, J.; Wischerhoff, E.; Laschewsky, A.; Döring, S.; Stumpe, J.


Advanced optical materials 2 (2014), No.2, pp.137-141
ISSN: 2195-1071
Journal Article
Fraunhofer IAP ()

A monolithic active optical resonator biosensor is fabricated for label-free sensing. The all-polymer sensor consists of a polymer distributed feedback (DFB) laser and a hydrogel recognition layer. Specific binding of analyte modulates the effective refractive index, shifting the laser emission wavelength. Real time detection of avidinbiotin interactions is demonstrated as a model for the new label-free biosensing principle.