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. Author manuscript; available in PMC: 2008 Sep 24.
Published in final edited form as: Anal Chem. 2007 Jun 28;79(15):5878–5887. doi: 10.1021/ac0701738

Figure 2.

Figure 2

SAMDI-TOF MS was used to monitor each step in the preparation of the immunosensor. The spectra in panels A and B show the immobilization of the protein A and protein G, respectively, onto a monolayer presenting the aza/Ni2+ ligand. Panels C and D show the immobilization of cysC antibody onto the protein A and protein G derivatized surfaces, respectively. Panels E and F show the capture of the cysC on the resulting immunosensors. (#) Unidentified components derived from the stock antibody.