Our paper entitled 'Collagenase Biosensor Based on the Degradation of Peptide Cross-Linked Poly(ethylene glycol) Hydrogel Films' written by Norlaily Ahmad, Burcu Colak, De-Wen Zhang, Michael Watkinson, Remzi Becer, Julien Gautrot and Steffi Krause has been published in Sensors 2019, 19(7), 1677; doi:10.3390/s19071677.
Peptide cross-linked hydrogels were deposited on gold coated, piezoelectric quartz crystals. Peptide cross-links were broken in the presence of the protease collagenase causing large changes in the viscoelastic properties of the films. The sensor response was monitored using a quartz crystal microbalance.

Updated by: Steffi Krause