Marine diatom as biosensor

The frustules of marine diatom Coscinodiscus radiatus chemically modified to properly bind a highly selective bioprobe such as an antibody. By measuring the changes in the photoluminescence emission of diatoms frustules, the molecular recognition event between the antibody and its ligand has been monitored. The chemically modified diatom biosilica possessed intrinsic red PL spectra at 427 nm excitation. Once the antibody IgG has been attached to the diatom surface the excitement was peak at 497 nm. variation is the tool to act as diatom frustule as sensor. Further details, Pl contact us.