Photoformed silicone sensor membrane
First Claim
Patent Images
1. A sensing device, comprising:
- a sensing surface;
a matrix overlaying the sensing surface; and
a photoformed membrane overlaying at least a portion of the matrix, wherein the photoformed membrane comprises a directly photoformed organosiloxane polymer that is substantially permeable to gaseous molecules and substantially impermeable to non-gaseous molecules and ions.
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Abstract
A sensing device includes a sensing surface, and a matrix overlaying the sensing surface. The sensing device includes a photoformed membrane overlaying at least a portion of the matrix. The photoformed membrane includes a directly photoformed organosiloxane polymer that is substantially permeable to gaseous molecules and substantially impermeable to non-gaseous molecules and ions.
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Citations
33 Claims
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1. A sensing device, comprising:
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a sensing surface;
a matrix overlaying the sensing surface; and
a photoformed membrane overlaying at least a portion of the matrix, wherein the photoformed membrane comprises a directly photoformed organosiloxane polymer that is substantially permeable to gaseous molecules and substantially impermeable to non-gaseous molecules and ions. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. A reference electrode, comprising:
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a silver-silver chloride sensing surface;
a matrix containing chloride ions overlaying the sensing surface; and
a directly photoformed membrane overlaying at least a portion of the matrix, wherein the photoformed membrane comprises an organosiloxane polymer that is substantially permeable to water vapor and substantially impermeable to ions, and wherein the photoformed membrane comprises at least one orifice configured to permit exchange of ions. - View Dependent Claims (25, 26, 27, 28, 29, 30)
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31. A method of making a photoformed, gas-permeable membrane that is substantially impermeable to non-gaseous molecules and ions, comprising the steps of:
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a.) applying an organosiloxane polymer having a bound labile moiety to a surface to form a layer;
b.) applying ultraviolet (UV) radiation to at least a portion of the layer to remove the labile moiety and to cause the organosiloxane polymer to form an adhered membrane on the surface; and
c.) exposing the layer to a developer to selectively remove the organosiloxane polymer not exposed to the UV radiation. - View Dependent Claims (32)
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33. A method of making a photoformed, gas-permeable membrane that is substantially impermeable to non-gaseous molecules and ions, comprising the steps of:
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a.) applying a silsesquioxane polymer to a surface to form a layer;
b.) applying ultraviolet (UV) radiation to at least a portion of the layer to cause the silsesquioxane polymer to form an adhered membrane on the surface; and
c.) exposing the layer to a developer to selectively remove the silsesquioxane polymer not exposed to the UV radiation.
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Specification