A ratiometric fluorescent viscosity sensor.
The development of a dual probe that provides ratiometric measurements of fluid viscosity is described. The design is based on coupling of a primary fluorophore with viscosity-independent fluorescence emission (blue unit) with a secondary fluorophore that exhibits viscosity-sensitive fluorescent emission quantum yield (red unit). Excitation of the secondary fluorophore can be achieved via Resonance Energy Transfer. The ratio of the fluorescence emission of these fluorophores provides an accurate, ratiometric measurement of solvent viscosity.
Haidekker
Mark A
MA
Department of Biological Engineering, University of Missouri--Columbia, 65211, USA. haidekkem@missouri.edu
Brady
Thomas P
TP
Lichlyter
Darcy
D
Theodorakis
Emmanuel A
EA
D000179:Acrylates / Q000737:chemistry; D015374:Biosensing Techniques / Q000379:methods*; D003374:Coumarins / Q000737:chemistry; D005456:Fluorescent Dyes / Q000737:chemistry*; D011789:Quantum Theory; D013050:Spectrometry, Fluorescence / Q000379:methods; D014783:Viscosity
D000179:Acrylates; D003374:Coumarins; D005456:Fluorescent Dyes