Biochips functionalized with Cystamine/Glutaraldehyde layers allow a good reproducibility between the anti-ovalbumin spots within the same chip. Moreover, this surface chemistry developed by Genoptics is an easy way to immobilize receptors on a biochip surface. No modification of the immobilized biomolecule is needed and we have shown that a hundred successive interaction/regeneration process can be tolerated without loss of activity.
We demonstrate here the robustness of our diazonium-ani-line-protein derivatives Biochip. We performed 112 ovalbumin injections each followed by injection of regeneration buffer (Glycine/HCl). After more than one hundred regenerations, the biochip remains active as indicated in figure 3..