In polarographic measurements two electrodes are commonly used, one of which is polarized and does not allow current to flow until depolarized by a substance being measured. Moreover, it has high sensitivity, a fast response time less than 3 s , and a detection limit as low as 0. However, in both cases low catalytic currents were observed for the acrylic hydrogel. Error detection in critical repeating data in a wireless sensor system 2002-04-19 2016-01-05 Sanofi-Aventis Deutschland Gmbh Body fluid sampling module with a continuous compression tissue interface surface 2006-10-23 2016-02-16 Abbott Diabetes Care, Inc. Attempts to determine the best material and design for electrodes have no results because of the complexity of fabrication and the lifespan of the material chosen for the electrodes. The enzyme gel particles can be accurately weighed and used in packed columns of a standard size to give reproducible activity measurements.
Selectivity of crystalline membranes can be for both and of the membrane-forming substance. Method and device for early signal attenuation detection using blood glucose measurements 2009-02-03 2016-08-02 Abbott Diabetes Care Inc. For example, paste electrodes containing 20% by weight of p-benzoquinone on which 1. Biosensor support 2002-04-19 2010-01-19 Pelikon Technologies, Inc. Analyte sensor devices, connections, and methods 2012-09-17 2018-05-15 Abbott Diabetes Care Inc.
The catalytic currents were analyzed in terms of the number of active and inactivated enzyme layers and mediator concentration. Therefore the interference rejection must be limited to molecules the same size or larger than the substrate of the enzyme. Each application serves a specific purpose, used in combination one can create anything from a photograph with specia … l effects, to a newsletter, to a web page or site, and animation. In The enzymes; Boyer, P. Analyte monitoring device and methods of use 1998-04-30 2015-03-10 Abbott Diabetes Care Inc.
Electrochemical sensor and method for manufacturing 2007-08-30 2014-04-22 Pepex Biomedical, Inc. The research interest on the subject is sharply increased since the beginning of 21st century primarily, due to the concomitant increase in knowledge in the field of material science. Most significantly, because the laminated membrane may be less than 10 microns thickness, less than 30 seconds and even in some cases as few as 10 seconds is taken for a polarographic analysis. A good fit with Eq. Analyte monitoring device and methods of use 2006-09-29 2014-04-22 Sanofi-Aventis Deutschland Gmbh Analyte measurement device with a single shot actuator 2001-06-12 2014-05-13 Sanofi-Aventis Deutschland Gmbh Electric lancet actuator 2007-02-18 2014-05-20 Abbott Diabetes Care Inc.
Gold electrodes were initially thiol-modified and succesive immersion in ferrocene polymer and enzyme solutions allows the formation of multilayered structures 139. On the other hand, when the carrier is a porous material, the impregnation can be performed easily by dipping the porous material in a liquid dispersion of the substance or preferably in a sol for the above-mentioned paste or gel, or by applying the liquid dispersion or the sol to the porous material. Method and apparatus for improving success rate of blood yield from a fingerstick 2003-06-20 2010-05-18 Roche Diagnostics Operations, Inc. Transcutaneous analyte sensor 2004-07-13 2011-05-24 Dexcom, Inc. Some alternatives have been proposed in order to overcome this effect 9-12. The present electrode shows a linear response, at an ethanol concentration lower than 10 mM. Most of the experience on protein immobilization was applied to electrode design 56.
The surface was covered further with a dialysis film 0. The ferrocenes represent a commonly used family of mediators. Recent advances on amperometric enzyme electrodes are reviewed with particular emphasis on biosensors based on Glucose Oxidase and Horseradish Peroxidase. The laminate is then dried to adhesively set the enzyme-adhesive preparation and securely bond the layers together. Techniques to improve polyurethane membranes for implantable glucose sensors 2002-05-22 2011-11-08 Dexcom, Inc.
There are several examples involving soluble mediator and immobilized enzymes. To prevent immersion of solvent, an epoxy bonding agent was applied to the whole surface where the lead wire was adhered, and at the same time said surface was adhered to a glass tube having an inner diameter of 3. In the second section, recent application studies for the water environment are also introduced. Therapeutic agents: several enzymes are used as drugs; new approach- enzymotherapy. Analyte monitoring device and methods of use 2007-05-31 2013-12-24 Abbott Diabetes Care Inc.
Small volume in vitro analyte sensor 1997-02-06 2012-02-21 Abbott Diabetes Care Inc. Some of them were unsuccessful 53,54 and only when an aminophenyl boronic acid modified glassy carbon electrode was used, direct electron tranfer could be demonstrated 55. Method and apparatus for providing notification function in analyte monitoring systems 2009-09-30 2017-09-05 Abbott Diabetes Care Inc. A intermediação redox através de mediadores artificiais solúveis ou ligados a polímeros é discutida em termos dos desenvolvimentos teóricos recentes e verificações experimentais. Can it find the cure for diabetes and other chronic diseases? In fact, the glucose levels in sweat are about one-hundredth to one-tenth of those in blood. Tissue penetration device 2001-06-12 2013-01-29 Sanofi-Aventis Deutschland Gmbh Tissue penetration device 2001-06-12 2018-04-10 Sanofi-Aventis Deutschland Gmbh Tissue penetration device 2001-06-12 2008-01-08 Pelikan Technologies, Inc. Thus, it became apparent that the voltammetric peak are ascribed to the electrochemical redox reaction of p-benzoquinone which has moved from the paste to the interfacial space between the graphite paste electrode the carrier and the thin nitrocellulose film, and the p-benzoquinone molecules contribute to the electrochemical reduction reaction.
Systems and methods for processing sensor data 2007-12-17 2016-05-17 Dexcom, Inc. To prevent immersion of solvent, an epoxy bonding agent was applied to the whole surface where the lead wire was adhered, and at the same time said surface was adhered to a glass tube having an inner diameter of 3. The use of polymeric gels to stabilize the enzyme is also disclosed. However, this electrode design has presented poor stability. Figures of merit for sensing glucose in 0. Analyte monitoring device and methods of use 2009-08-31 2015-03-31 Abbott Diabetes Care Inc.
Polargraphic cell systems have become quite popular in the medical field for measurement of various substances. The dependency to ethanol concentration of Is at an impressed voltage of 0. The pores of the porous electrode thus prepared were impregnated with a quinone-containing material to form a storage layer the carrier of the present invention. Analyte monitoring device and methods of use 1998-04-30 2012-10-16 Abbott Diabetes Care Inc. Analyte monitoring device and methods of use 1998-04-30 2011-02-08 Abbott Diabetes Care Inc. The amperometric signal in these electrodes is obtained with redox mediators or with the natural co-substrate, oxygen.