Otto J. Prohaska - Danbury CT Anthony B. LaConti - Lynnfield MA Jose D. Giner - Brookline MA Mourad Manoukian - Watertown MA
Assignee:
Perkin Elmer LLC - Norwalk CT
International Classification:
G01N 27407
US Classification:
204426, 204412, 204424, 204431
Abstract:
A miniaturized gas sensor including film type electrodes, and a solid ionomer electrolyte, for the detection of toxic gases, i. e. , carbon monoxide, and other oxidizable or reducible gases and vapors is described. The all-solid planar sensor cell has two or more film type electrodes arranged on a non-conductive planar surface of a supportive material. The electrodes are discrete and in intimate contact with the same solid polymer ionomer membrane. The sensor cell contains no liquid electrolyte and is operated in a potentiostatic or potentiodynamic mode. The unique feature of the sensor cell is that high sensitivity to a select gas or vapor is achieved by a novel three-phase contact area design for a sensing electrode which is easily accessible to the gas sample via small diffusion openings or holes that penetrate through the solid polymer ionomer membrane layer above the sensing electrode. A significant signal to background noise enhancement is achieved for these film type sensor cells by processes that increase the three-phase contact area.
Otto J. Prohaska - Seymour CT, US Anthony B. LaConti - Lynnfield MA, US Jose D. Giner - Brookline MA, US Mourad Manoukian - Watertown MA, US
Assignee:
Perkinelmer Las, Inc. - Boston MA
International Classification:
G01N027/407
US Classification:
204424, 204432
Abstract:
A miniaturized gas sensor comprised of thick- or thin-film type electrodes, on a non-conductive supportive substrate, and in contact with a solid ionomer electrolyte, for the detection of toxic gases, i. e. , carbon monoxide, and other oxidizable or reducible gases and vapors is described. The all-solid planar sensor cell has two or more film type electrodes arranged on a non-conductive planar surface of a supportive substrate. The electrodes are discrete and in intimate contact with the same solid polymer ionomer membrane. The sensor cell contains no liquid electrolyte and is operated in a constant-voltage, potentiostatic or potentiodynamic mode. A high sensitivity to a select gas or vapor is achieved by a novel three-phase contact area design for a sensing electrode which provides contact with the solid ionomer electrolyte, as well as the gas sample via diffusion openings or holes that penetrate through the supportive substrate.
Film-Type Solid Polymer Ionomer Sensor And Sensor Cell
Otto J. Prohaska - Danbury CT, US Anthony B. LaConti - Lynnfield MA, US Jose D. Giner - Brookline MA, US Mourad Manoukian - Watertown MA, US
Assignee:
PerkinElmer LAS, Inc. - Boston MA
International Classification:
G01N 27/407
US Classification:
204426, 204424, 204431
Abstract:
A miniaturized gas sensor including film type electrodes, and a solid ionomer electrolyte, for the detection of toxic gases, i. e. , carbon monoxide, and other oxidizable or reducible gases and vapors is described. The all-solid planar sensor cell has two or more film type electrodes arranged on a non-conductive planar surface of a supportive material. The electrodes are discrete and in intimate contact with the same solid polymer ionomer membrane. The sensor cell contains no liquid electrolyte and is operated in a potentiostatic or potentiodynamic mode. The unique feature of the sensor cell is that high sensitivity to a select gas or vapor is achieved by a novel three-phase contact area design for a sensing electrode which is easily accessible to the gas sample via small diffusion openings or holes that penetrate through the solid polymer ionomer membrane layer above the sensing electrode. A significant signal to background noise enhancement is achieved for these film type sensor cells by processes that increase the three-phase contact area.
Otto J. Prohaska - Seymour CT, US Anthony B. LaConti - Lynnfield MA, US Jose D. Giner - Brookline MA, US Mourad Manoukian - Watertown MA, US
Assignee:
PerkinElmer LAS, Inc. - Boston MA
International Classification:
G01N 27/407
US Classification:
204432, 204424
Abstract:
A miniaturized gas sensor comprised of thick- or thin-film type electrodes, on a non-conductive supportive substrate, and in contact with a solid ionomer electrolyte, for the detection of toxic gases, i. e. , carbon monoxide, and other oxidizable or reducible gases and vapors is described. The all-solid planar sensor cell has two or more film type electrodes arranged on a non-conductive planar surface of a supportive substrate. The electrodes are discrete and in intimate contact with the same solid polymer ionomer membrane. The sensor cell contains no liquid electrolyte and is operated in a constant-voltage, potentiostatic or potentiodynamic mode. A high sensitivity to a select gas or vapor is achieved by a novel three-phase contact area design for a sensing electrode which provides contact with the solid ionomer electrolyte, as well as the gas sample via diffusion openings or holes that penetrate through the supportive substrate.
Film-Type Solid Polymer Ionomer Sensor And Sensor Cell
Otto J. Prohaska - Beacon Falls CT, US Anthony B. LaConti - Lynnfield MA, US Jose D. Giner - Brookline MA, US Mourad Manoukian - Watertown MA, US
Assignee:
PerkinElmer Health Sciences, Inc. - Waltham MA
International Classification:
G01N 27/407
US Classification:
204426, 204424, 204431
Abstract:
A miniaturized gas sensor including film type electrodes, and a solid ionomer electrolyte, for the detection of toxic gases, i. e. , carbon monoxide, and other oxidizable or reducible gases and vapors is described. The all-solid planar sensor cell has two or more film type electrodes arranged on a non-conductive planar surface of a supportive material. The electrodes are discrete and in intimate contact with the same solid polymer ionomer membrane. The sensor cell contains no liquid electrolyte and is operated in a potentiostatic or potentiodynamic mode. The unique feature of the sensor cell is that high sensitivity to a select gas or vapor is achieved by a novel three-phase contact area design for a sensing electrode which is easily accessible to the gas sample via small diffusion openings or holes that penetrate through the solid polymer ionomer membrane layer above the sensing electrode. A significant signal to background noise enhancement is achieved for these film type sensor cells by processes that increase the three-phase contact area.
Method And System For Producing High-Pressure Hydrogen
John Kosek - Danvers MA, US Jose Giner - Brookline MA, US Anthony LaConti - Lynnfield MA, US
International Classification:
C25C007/00 C25B009/00 C25D017/00 C25B001/02
US Classification:
205/637000, 204/252000
Abstract:
Disclosed are methods and systems for generating hydrogen gas at pressures high enough to fill a hydrogen storage cylinder for stationary and transportation applications. The hydrogen output of an electrochemical hydrogen gas generating device is integrated with an electrochemical hydrogen compressor operating in a high-differential-pressure mode. The compressor brings the hydrogen produced by the gas generating device to the high pressure required to fill the storage cylinder.
Method And System For Producing High-Pressure Hydrogen
John Kosek - Danvers MA, US Jose Giner - Brookline MA, US Anthony LaConti - Lynnfield MA, US
Assignee:
Giner Electrochemical Systems LLC - Newton MA
International Classification:
C25B001/12 C25B001/02
US Classification:
205/637000, 204/253000, 204/258000
Abstract:
Disclosed are methods and systems for generating hydrogen gas at pressures high enough to fill a hydrogen storage cylinder for stationary and transportation applications. The hydrogen output of an electrochemical hydrogen gas generating device, a hydrogen-producing reactor, or a diluted hydrogen stream is integrated with an electrochemical hydrogen compressor operating in a high-differential-pressure mode. The compressor brings the hydrogen produced by the hydrogen generating device to the high pressure required to fill the storage cylinder.
Harry Lerner - Lexington MA Jose D. Giner - Brookline MA John S. Soeldner - Newton MA
Assignee:
Joslin Diabetes Center, Inc. - Boston MA
International Classification:
G01N 2746 G01N 2750
US Classification:
204195R
Abstract:
Glucose sensing apparatus for use in biological fluids comprising an electrode and a voltage source connected to the electrode to cause a current to flow therethrough, in which the voltage applied to the electrode is varied in a sweep ranging from a first limit to a second limit and back toward the first limit, and the current at the electrode is integrated with respect to time during at least a portion of the voltage variation selected to produce a total charge sensitive to glucose concentration and relatively insensitive to other components in the fluid; alternatively the current is measured at a point in a specific region of the voltage variation.