Abstract: A solid state electrode includes a metal electrode having a surface; a nanocomposite coated on at least a portion of the surface, the nanocomposite comprising a compound of the metal used in the electrode, and nanoparticles, a protein, a polymer, or one or more of nanoparticles, a protein, and polymer; wherein when the solid state electrode is in electrical connection with a working electrode and a fluid, the electrode can detect a change in chemical composition, for example, a change in pH of less than or equal to 0.1 pH units, and the potential of the solid state electrode is stable to within 5 millivolts, such as within 3 millivolts over a period of 20 minutes. The solid state electrode can be used in biosensing, environmental analysis (e.g., soil analysis, or water analysis), pharmaceutical analysis, and food analysis, for example.

Abstract: A system and method for determining a user's physical condition such as a hormonal level are provided. The system includes a portable or wearable device that measures multiple biomarkers, such as basal body temperature, saliva salinity, saliva pH, sweat ions, skin thickness, vitamin levels or breath carbon dioxide. The system determines the physical condition, such as the fertility level of the user based on comparing the measured biomarkers with data models. The determined physical condition, such as the fertility level, is communicated to allow the user to know their status.

Abstract: A system and method are provided for determining a core body temperature or a physiological function. The system and method includes using multiple sensors in combination with analytic techniques.

Abstract: A sensor for detecting volatile materials comprising a working electrode having a surface; a reference electrode in electrical connection with the working electrode, the reference electrode comprising: a reference electrode surface; a nanocomposite coated on at least a portion of the reference electrode surface, the nanocomposite comprising: a compound of a metal used in the reference electrode, and nanoparticles, polymers, and proteins or a combination comprising at least one of the foregoing; and an ionic liquid in electrical connection with the reference electrode surface; wherein the electrical connection between the working electrode and the reference electrode is a solvent, or a conductive tape, or a solid polymer electrolyte; wherein when the sensor is exposed to an analyte, the sensor can generate an electrochemical signal; and wherein a surface of the working electrode or the conductive tape or the solid polymer electrolyte comprises carbon nanoparticles or a nanocomposite comprising carbon nanoparti

Abstract: A system and method are provided for determining a core body temperature or a physiological function. The system and method includes using multiple sensors in combination with analytic techniques.

Abstract: A system and method for determining a user's physical condition such as a hormonal level are provided. The system includes a portable or wearable device that measures multiple biomarkers, such as basal body temperature, saliva salinity, saliva pH, sweat ions, skin thickness, vitamin levels or breath carbon dioxide. The system determines the physical condition, such as the fertility level of the user based on comparing the measured biomarkers with data models. The determined physical condition, such as the fertility level, is communicated to allow the user to know their status.