Methods and Apparatuses Relating to Dermal Biochemical Sensors
OwnerAnh-Dung Leinventor
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Abstract
Example embodiments of the present invention comprise an analyte sensing patch, comprising a substrate, and a sensing agent disposed on the substrate such that analyte can encounter the sensing agent through a side of the patch disposed adjacent the skin of a subject but not through a side of the patch disposed away from the skin of the subject. Example embodiments of the present invention comprise an analyte sensing patch, comprising a substrate, a sensing material disposed on the substrate in a first region thereof, an adhesive disposed on the substrate in a second region thereof, wherein the second region surrounds the first region, wherein the sensing agent undergoes a change in a discernible characteristic responsive to encounter with a predetermined analyte.
Claims20
An analyte sensing patch, comprising
- (a) a substrate that is impermeable to an analyte;
- and
- (b) a sensing agent disposed on a first side of the substrate, in a first region of the first side of the substrate, wherein the sensing agent undergoes a change in a discernible characteristic responsive to encounter with the analyte;
- (c) an adhesive disposed on the first side of the substrate in a second region of the first side of the substrate, wherein the second region surrounds the first region;
- and (d) one or more control regions of the patch, wherein a control region exhibits a characteristic that corresponds to the characteristic of the sensing agent upon exposure to a predetermined amount of the analyte;
- wherein the sensing agent comprises an enzyme and a dye.
An analyte sensing patch, comprising
- (a) a substrate that is impermeable to an analyte;
- and
- (b) a sensing agent disposed on a first side of the substrate, in a first region of the first side of the substrate, wherein the sensing agent undergoes a change in a discernible characteristic responsive to encounter with the analyte;
- (c) an adhesive disposed on the first side of the substrate in a second region of the first side of the substrate, wherein the second region surrounds the first region;
- and
- (d) one or more control regions of the patch, wherein a control region exhibits a characteristic that corresponds to the characteristic of the sensing agent upon exposure to a predetermined amount of the analyte;
- wherein the sensing agent comprises an alcohol oxidase, peroxidase, and a chromogenic substance.
An analyte sensing patch, comprising
- (a) a substrate that is impermeable to an analyte;
- and
- (b) a sensing agent disposed on a first side of the substrate, in a first region of the first side of the substrate, wherein the sensing agent undergoes a change in a discernible characteristic responsive to encounter with the analyte;
- (c) an adhesive disposed on the first side of the substrate in a second region of the first side of the substrate, wherein the second region surrounds the first region;
- and
- (d) one or more control regions of the patch, wherein a control region exhibits a characteristic that corresponds to the characteristic of the sensing agent upon exposure to a predetermined amount of the analyte;
- wherein the analyte comprises ethanol.
Dependencies are inferred from the claim text.