Lab-Chip Schematic (IMAGE) Johns Hopkins University Caption At left, the illustration shows adhesive complex formed between cell membrane-bound protein (integrin in gray) with peptide (RGD in red) tethered by thiol molecules (blue) to gold electrode (yellow) on glass slide (green). At right, electrochemical release of tethered peptide from the gold electrode results in local release of the RGD-integrin complex. Credit Diagram by Peter Searson/JHU Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.