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US 2011/0254568 A1Published application
Organic chemical sensor with microporous organisilicate material
Assignee3M Innovative Properties Company
InventorsJohn Christopher Thomas, NealA. Rakow, Michael S. Wendland, Stefan H. Gryska, Michael C. Palazzotto, John E. Trend
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Abstract
Sensing elements for sensing organic chemical analytes are disclosed. The sensing elements include a first electrode and a second electrode, and a substantially microporous, amorphous, hydrophobic, analyte-responsive organosilicate material in proximity to the first and second electrodes.
Claims17
A sensing element for sensing an organic chemical analyte, comprising:
- a first electrode and a second electrode;
- and
- a substantially microporous, amorphous, hydrophobic, analyte-responsive organosilicate material disposed at least in proximity to the first and second electrodes, wherein the substantially microporous, amorphous, hydrophobic, analyte-responsive organosilicate material comprises micropores which define a pore volume.
A method of sensing organic chemical analytes, comprising:
- providing a sensor that comprises;
- a sensing element that comprises a first electrode and a second electrode and a substantially microporous, amorphous, hydrophobic, analyte-responsive organosilicate material disposed at least in proximity to the first and second electrodes, wherein the substantially microporous, amorphous, hydrophobic, analyte-responsive organosilicate material comprises micropores which define a pore volume;
- and,
- an operating circuit in electrical communication with the first and second electrodes, wherein the operating circuit is capable of applying a voltage to the first and second electrodes and is capable of detecting a change in an electrical property of the sensing element;
- exposing the sensing element to an environment potentially containing one or more organic chemical analytes;
- applying a voltage to the first and second electrodes;
- and,
- monitoring an electrical property of the sensing element.
5 more elements
Dependencies are inferred from the claim text.