Abstract: Disclosed herein are methods of estimating an analyte concentration which include generating a signal indicative of the analyte concentration, generating a signal indicative of a temperature, generating a signal indicative of a pH, and transforming the signal indicative of the analyte concentration utilizing an equation of the form of a modified Michaelis-Menten equation depending on Michaelis-Menten parameters, wherein values of the Michaelis-Menten parameters are set based upon data which includes temperature and pH calibration parameters, the signal indicative of a temperature, and the signal indicative of a pH. Also disclosed herein are measurement devices which employ the aforementioned methods.

Abstract: Novel pyridinium salts functionalized with boronic acid and methods of making them are disclosed. When combined with a fluorescent dye, the compounds are useful in the detection of polyhydroxyl-substituted organic molecules.

Abstract: Disclosed herein are methods and systems for generating an estimate of an in vivo analyte concentration and identifying whether the estimate is aberrant. In some embodiments, the system includes a sensor comprising an analyte sensor and a temperature sensing element, and a control unit programmed to identify changes in temperature that may indicate a non-physiologic condition (and result in an aberrant glucose measurement). In some embodiments, the methods include generating an estimate of analyte concentration at a particular time using the analyte sensor, and generating first and second signals indicative of temperature using the temperature sensing element. In some embodiments the methods include identifying the estimate of analyte concentration as aberrant if the magnitude of the difference between the first and second signals indicative of temperature exceeds a threshold value.

Abstract: Novel pyridinium salts functionalized with boronic acid and methods of making them are disclosed. When combined with a fluorescent dye, the compounds are useful in the detection of polyhydroxyl-substituted organic molecules.

Abstract: Embodiments of the invention are directed to an optical sensor for detecting blood glucose. The sensor comprises a chemical indicator system disposed within a gap between the distal end of an optical fiber and an atraumatic tip portion, wherein the optical fiber and atraumatic tip portion are coupled by a coupling member, such as a rod or hypotube or cage that traverses the gap. The sensor further comprises a means for generating and detecting an optical reference signal unrelated to the blood glucose, such that ratiometric correction of blood glucose measurements for artifacts in the optical system is enabled.

Abstract: Embodiments of the present invention relate to analyte sensors comprising a heparin benzalkonium antithrombogenic coating, and methods of coating analyte sensors.

Abstract: Disclosed are embodiments that relate to algorithms and methods for calibrating an analyte sensor, and more particularly, to algorithms for calibrating an optical glucose sensor comprising an equilibrium fluorescent chemical indicator system. In particular, a method of detecting an analyte concentration is disclosed where a modified Michaelis-Menten equation comprising Michaelis-Menten parameters is used to characterize the signal generated by the analyte sensor.

Abstract: The invention relates to a class of glucose-responsive, polyviologen boronic acid quenchers that may be used in combination with fluophores to achieve real-time measurement of glucose levels in vivo.

Abstract: Novel fluorescent dyes are disclosed for use in analyte detection. In particular, mono- and bis-substituted HPTS dyes and methods of making them are provided.

Abstract: Novel fluorescent dyes are disclosed for use in analyte detection. In particular, mono- and bis-substituted HPTS dyes and methods of making them are provided.

Abstract: Embodiments of the present invention are directed to an optical sensor capable of measuring two analytes simultaneously with a single indicator system. In preferred embodiments, the sensor comprises a fluorescent dye having acid and base forms that facilitate ratiometric pH sensing, wherein the dye is further associated with a glucose binding moiety and configured to generate a signal that varies in intensity with the concentration of glucose.

Abstract: A novel class of compounds that includes HPTS-Cys-MA, and methods of making them are disclosed herein. The class of compounds including HPTS-Cys-MA are useful as fluorescent dyes for analyte detection.

Abstract: Embodiments of the present invention are directed to an optical sensor capable of measuring two analytes simultaneously with a single indicator system. In preferred embodiments, the sensor comprises a fluorescent dye having acid and base forms that facilitate ratiometric pH sensing, wherein the dye is further associated with a glucose binding moiety and configured to generate a signal that varies in intensity with the concentration of glucose.

Abstract: The present invention relates to a sensor for percutaneous insertion and intravascular residence without an indwelling cannula. In preferred embodiments, a glucose sensor is inserted into a blood vessel using a removable cannula. After the cannula is removed, the glucose sensor remains within the blood vessel by itself and forms a seal with the patient's tissue.

Abstract: The invention relates to a class of glucose-responsive, polyviologen boronic acid quenchers that may be used in combination with fluophores to achieve real-time measurement of glucose levels in vivo.

Abstract: Novel fluorescent dyes are disclosed for use in analyte detection. In particular, mono- and bis-substituted HPTS dyes and methods of making them are provided.

Abstract: The present invention relates to methods and systems for multipoint calibration of an analyte sensor. More specifically, the methods can be used to calibrate glucose sensors.

Abstract: Embodiments of the present invention relates to analyte sensors. In particular, the preferred embodiments of the present invention relate to non-consuming intravascular glucose sensors based on fluorescence chemistry.

Abstract: A novel class of compounds that includes HPTS-Cys-MA, and methods of making them are disclosed herein. The class of compounds including HPTS-Cys-MA are useful as fluorescent dyes for analyte detection.