Chemistry: analytical and immunological testing – Oxygen containing – Molecular oxygen
Patent
1997-03-07
1999-03-23
Snay, Jeffrey
Chemistry: analytical and immunological testing
Oxygen containing
Molecular oxygen
436 68, 436172, 422 8205, 422 8208, 422 91, G01N 2164
Patent
active
058858431
ABSTRACT:
Disclosed are oxygen concentration and/or pressure sensing devices and methods which incorporate photoluminescent silica aerogels. Disclosed sensors include a light proof housing for holding the photoluminescent aerogel, a source of excitation radiation (e.g., a UV source), a detector for detecting radiation emitted by the aerogel, a system for delivering a sample gas to the aerogel, and a thermocouple. Also disclosed are water resistant oxygen sensors having a photoluminescent aerogel coated with a hydrophobic material.
REFERENCES:
patent: 5063164 (1991-11-01), Goldstein
patent: 5352582 (1994-10-01), Lichtenwalter et al.
patent: 5501836 (1996-03-01), Myerson
patent: 5618493 (1997-04-01), Goldstein et al.
Bacon, J. R. et al., Photophysics and Photochemistry of Oxygen Sensors Based on Luminescent Transition-Metal Complexes, 1991, American Chemical Society, 63, 337-342.
Baron, A. E. et al., Submillisecond Response Times of Oxygen-quenched Luminescent Coatings, Dec. 1993, Rev. Sci. Instrum., 64 (12), 3394-3402.
Degraff, B. A. et al., Design of Oxygen Sensors Based on Quenching of Luminescent Metal Complexes: Effect of Ligand Size on Heterogeneity, 1993, Anal. Chem. 65, 3480-3483.
Degraff, B. A. et al., Oxygen Sensors Based on Luminescence Quenching: Interactions of Metal Complexes with the Polymer Supports, 1994, Anal. Chem., 66, 4133-4141.
Delpy, D. T. and Gewehr, P.M., Optical Oxygen Sensor Based on Phosphorescence Lifetime Quenching and Employing a Polymer Immobilised Metalloporphyrin Probe, Jan. 1993, Medical & Biological Engineering & Computing, 31, 2-10.
Fricke, J., et al., Aerogels--Nanoporous Materials Part I: Sol-Gel Process and Drying of Gels, J. Porous Materials, 1, 1 (1995).
Hartmann, P., et al. Luminescence Quenching Behavior of an Oxygen Sensor Based on a Ru(II) Complex Dissolved in Polystyrene, Jan. 1, 1995, Anal Chem., 67, 88-93.
Henkel, S. vL., Research and Developments--Silica Aerogels Are Put to Work Detecting Gaseous O.sub.2, Jun. 1996, Sensors, 10 & 12.
Hunt, A. J. et al., Ambient-Temperature Supercritical Drying of Transparent Silica Aerogels, Mater. Lett., 1995, 3, 363.
Lee, W., et al, Luminescent Dicyanoplatinum (II) Complexes as Sensors for the Optical Measurement of Oxygen Concentrations, 1993, Anal. Chem., 65, 255-258.
Parmenter, C. S., et al., Fluorescence Quenching in Aromatic Hydrocarbons by Oxygen, 1969, J. Chem. Phys., 51, 2242.
Yokogawa, H. et al., Hydrophobic Silica Aerogels, J. Non-Cryst. Solids, 186, 23-29.
Optical Oxygen Sensor Based on Silica Aerogel,(downloaded Jan. 8, 1997), http://eande.lbl.gov/ECS/aerogels/sao2sens.htm.
Ayers Michael R.
Hunt Arlon J.
Martin Paul R.
Snay Jeffrey
The Regents of the University of California
LandOfFree
Device and method for determining oxygen concentration and press does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Device and method for determining oxygen concentration and press, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Device and method for determining oxygen concentration and press will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2124366