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Preparation of Photonic Biosensors by Inkjet Printing Technology
Poster

Preparation of Photonic Biosensors by Inkjet Printing Technology

Preparation of Photonic Biosensors by Inkjet Printing Technology
Poster

Preparation of Photonic Biosensors by Inkjet Printing Technology

In order to enable local functionalization of label-free optical waveguide biosensors in a cost effective mass-fabrication compatible manner, we investigate surface modification employing inkjet printing of a) functional polymers (biotin-modified polyethylenimine (PEIB)) to implement high receptor densities at the surface and b) UV-curable benzophenone dextran (benzo-dextran) to form a voluminous porous hydrogel matrix. The combination of these approaches on a single chip is promising for the detection of biomolecules. We evaluate these functional polymers and hydrogels on an integrated four-channel silicon nitride (Si3N4) waveguide based Mach-Zehnder interferometric (MZI) sensor platform operating at a wavelength of 850nm (TM-mode).
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