Methods and compositions are provided for detecting biomolecular interactions. The use of labels is not required and the methods can be performed in a high-throughput manner. The invention also provides optical devices useful as narrow band filters. Specifically, the invention herein provides a robust...http://www.google.com/patents/US20030092075?utm_source=gb-gplus-sharePatent US20030092075 - Aldehyde chemical surface activation processes and test methods for colorimetric resonant sensors
