A FRET-Based Calcium Biosensor with Fast Signal Kinetics and High Fluorescence Change Mank, Marco ; Reiff, Dierk F. ; Heim, Nicola ; Friedrich, Michael W. ; Borst, Alexander ; Griesbeck, Oliver Abstract Publication: Biophysical Journal Pub Date: March 2006 DOI: 10.1529/biophysj.105.073536 Bibcode: 2006BpJ....90.1790M