Biochips

Spot of a DNA Biochip

SiO2 surface structured by optical lithography and coated with epoxy silane and DNA

Collaboration: A. Offenhäuser, R. Ghosh Moulick, S. Gilles (INSTITUT FÜR BIO & NANOSYSTEME (IBN2), Jülich, Germany)


		Quality control of chip

		Optical tchickness measurement

		No labelling

		Determination of their shape


		SiO2 Surf

		Your Optical Microscope : upright, reflected light (BF challenging, DIC mode for guaranteed success)

The elevated microsquare structures are resist residues

(Scale bar: 50 µm)

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