2219 results about "Bio sensor" patented technology

Abstract of the Disclosure The invention presents a networked system for identifying an individual, communicating information to the individual, and remotely monitoring the individual. The system includes a remotely programmable apparatus that occasionally connects to a server via a communication network such as the Internet. The remotely programmable apparatus interacts with the individual in accordance with a script program received from the server Among other capabilities, the script program may instruct the remotely programmable apparatus to identify the individual, to communicate information to the individual, to communicate queries to the individual, to receive responses to the queries, and to transmit information identifying the individual and the responses from the remotely programmable apparatus to the server. Information identifying the individual may be obtained via a biometrics sensor, a data card, a remote monitoring device, or the interception of data from a separate information system. The information identifying the individual may be used by either or both the server system and remotely programmable apparatus for security, customization and other purposes. As the present invention has multi-user capabilities, it can be used in a public place, such as a pharmacy or health care clinic. The multi-user capabilities also allow collection and tracking of user data for the healthcare industry.

A biosensor in the form of a strip. In one embodiment, the biosensor strip comprises an electrode support, a first electrode, i.e., a working electrode, a second electrode, i.e., a counter electrode, and a third electrode, i.e., a reference electrode. Each of the electrodes is disposed on and supported by the electrode support. Each of the electrodes is spaced apart from the other two electrodes. The biosensor strip can include a covering layer, which defines an enclosed space over the electrodes. This enclosed space includes a zone where an analyte in the sample reacts with reagent(s) deposited at the working electrode. This zone is referred to as the reaction zone. The covering layer has an aperture for receiving a sample for introduction into the reaction zone. The biosensor strip can also include at least one layer of mesh interposed in the enclosed space between the covering layer and the electrodes in the reaction zone. This layer of mesh facilitates transporting of the sample to the electrodes in the reaction zone. In another embodiment, a biosensor strip can be constructed to provide a configuration that will allow the sample to be introduced to the reaction zone by action of capillary force. In this embodiment, the layer of mesh can be omitted. The invention also provides a method for determining the concentration of glucose in a sample of whole blood by using the biosensor of this invention.

This invention is directed to a composition comprising: (a) platinum group metal powder, alloys, or mixtures thereof as a powder or deposited on graphite supports; (b) poly(glycol ether), derivatives, or mixtures thereof; (c) carbon-based electrically conductive filler; and (d) thermoplastic polymer or mixtures thereof. The invention is further directed to a process for dispersing platinum group metal powder, alloys, or mixtures thereof in poly(glycol ether), derivatives, or mixtures thereof. The invention is further directed to the above composition wherein the platinum group metal powder has been dispersed according to the above process.

A device having a flow channel, wherein at least one flow-terminating interface is used to control the flow of liquid in the flow channel. The flow-terminating interface prevents the flow of the liquid beyond the interface. In one aspect, the invention provides a sensor, such as, for example, a biosensor, in the form of a strip, the sensor being suitable for electrochemical or optical measurement. The sensor comprises a base layer and a cover layer, and the base layer is separated from the cover layer by a spacer layer. The base layer, cover layer, and spacer layer define a flow channel into which a liquid sample is drawn therein and flows therethrough by means of capillary attraction. The flow of the sample is terminated by a flow-terminating interface positioned in the flow channel.

A novel biosensor was accomplished using a plasma-polymerized membrane. The biosensor of the present invention is a high-performance biosensor produced by a simpler method and applicable to a wide range of fields.

Some embodiments of the invention provide a meter and a disposable cartridge for analyzing a fluid sample confined to the disposable cartridge. The fluid sample, particularly blood, is drawn into the cartridge by capillary action, negative pressure, positive pressure, or combination thereof. The cartridge has at least one flow path, which includes at least one optical chamber for spectroscopic measurement, and at least one biosensor for biosensor measurement. The meter has a sample slot for receiving the disposable cartridge. The cartridges have electrical output contacts, and the meter slot has electrical input contacts. When the output contacts mate with the input contacts, the optical chamber becomes positioned for spectroscopic measurement. Neither biosensors nor spectroscopy can be used alone to measure key analytes in blood for effective patient care. The present invention provides joint-diagnostic spectroscopic and biosensor measurements. Optionally, plasma can be extracted from whole blood, for measuring analytes that cannot be measured accurately in whole blood. The invention provides a wider panel of blood analytes using as little as a drop of blood, at the point of patient care.

The invention discloses a high-safety portable payment receiving device which comprises a storage module, a payment information reading and setting module, a terminal user identity recognition module, a communication module, an input-output module and a microcontroller. The invention further discloses a high-safety portable payment receiving method for the device. The high-safety portable payment receiving method comprises the steps of setting, payment receiving and payment. When the device is worn, the method can also comprise the step of wearing verification. The device and the method perform user identity pre-setting through a biosensor and perform authentication and recognition through the biosensor when being used, a step of manually inputting passwords and other information to perform login authentication is omitted, multiple-step operation in the payment receiving process is also remarkably decreased, convenient, fast and safe adjacent electronic payment receiving is achieved, the safety, confidentiality and usability are greatly improved, and an application range of population is widened. In addition, the device can be a watch, a bracelet, a ring or other wearable styles, can also built in a wearable accessory and is convenient and fashionable.

The present invention relates to a biosensor which comprises an electrode system including at least one pair of electrodes, at least one insulating base plate for supporting the electrode system, a first reaction layer provided at least on a working electrode of the electrode system, including an organic compound having a functional group capable of bonding or being adsorbed to an electrode and a hydrophobic hydrocarbon group, a second reaction layer provided on the first reaction layer, including an amphiphilic lipid capable of bonding or being adsorbed to a hydrophobic portion of the first reaction layer, and a reagent system carried in a two-component membrane composed of the first and second reaction layers, including at least membrane-binding type pyrroquinoline quinone-dependent glucose dehydrogenase and an electron mediator.

Calibration and normalization methods for a grating-based sensor design are disclosed. The sensor may be constructed in a manner optimized for both label-free and luminescence, e.g. fluorescence, amplification detection in a single device. Such a sensor, based on grating or another periodical structure with appropriate coating, dramatically increases the diversity of applications and allows realizing novel concepts that provide qualitative and quantitative information/data for each location or capture element in the sensor surface. The invention takes advantage of these different modes to carry out a quality control (QC) step and a calibration of each individual location of the sensor. Thus, the assay data can be flagged according to their quality and local density variations, batch variations and variations in the printed deposition of probes or the materials to the surface can be compensated.

The invention relates to a method for preparing a nanocomposite by using two-dimensional transition metal chalcogenide nanosheets and metal, and belongs to the field of nanomaterial synthesis. The method mainly includes adding a reducing agent and a stabilizing agent into monolayer or multi-layer two-dimensional transition metal chalcogenide nanosheet aqueous dispersion obtained after chemical intercalation, then injecting a certain amount of metal salt solution, and preparing the metal nanocomposite based on monolayer or few-layer two-dimensional transition metal chalcogenide nanosheets on the conditions of ice bath, hydrothermal method, microwaves, ultrasound and the like. In the composite, metal nanoparticles can be evenly distributed on the surfaces of the nanosheets, and the obtained composite can be evenly dispersed in water, and can be used in the solution phase and further processed. Through compositing of the metal nanoparticles, photoelectric property of two-dimensional transition metal chalcogenide can be improved, and the nanocomposite has good application prospects in the fields of supercapacitors, fuel cells and biosensors based on surface enhanced Raman detection, and the like.

The invention provides a method for manufacturing and integrating a multichannel high-sensitive biosensor. The method comprises the following steps: firstly, based on an SOI silicon chip, adopting a top-down method to manufacture an FET field effect transistor of a silicon nanometer wire; secondly, utilizing polydimethylsiloxane (PDMS) to manufacture a plurality of microfluid channels; and finally, modifying the silicon nanometer wires in different microfluid channels to allow the silicon nanometer wire to be modified with different detecting antibodies and small molecules for detecting different target molecules. The sensor manufacture by the method can be used for simultaneously detecting relevant factors (such as DNA, RNA, protein and the like) or virus of different types of diseases and has the characteristics of high sensitivity, stability, easy integration and the like.

Reduced Rayleigh backscattering effect enables a longer-reach optical access communication network-thus it eliminates significant costs. Furthermore, a wavelength to an intelligent subscriber subsystem can be dynamically varied for bandwidth on-Demand and service on-Demand. A software module renders intelligence (and context awareness) to a subscriber subsystem and an appliance. An object can sense/measure/collect/aggregate/compare/map and connect/couple/interact (via one or more or all electrical/optical/radio/electro-magnetic/sensor/bio-sensor communication network(s) within and/or to and/or from an object) with another object, an intelligent subscriber subsystem and an intelligent appliance utilizing an Internet protocol version 6 (IPv6) and its subsequent versions.

A construction of a near-field communication (NFC) enabled intelligent micro-subsystem and/or intelligent appliance with key applications (e.g., an intelligent, location based and personalized social network and an intelligent, location based and personalized direct and peer-to-peer marketing) are also described.

The present invention concerns an electrode carrying immobilized redox enzymes such that electric charge can flow between an electron mediator group to the enzyme cofactor by the use of boronic acid or a boronic acid derivative that acts as a linker moiety between the cofactor and the electron mediator group. The invention also concerns devices and systems that make use of the electrode of the invention, such as bio-sensors and fuel cells, the electrode being one of the components thereof.

A system for monitoring compliance to a health care regiment of testing includes a wireless communication device for sending and receiving communication signals, at least one bio-sensor within the wireless communication device for providing a medical test of an individual in accordance with the health care regiment, a memory within the wireless communication device for recording test results from the medical test, a carrier network for receiving data from the wireless communication device that includes test results, and a service provider for receiving the data via the carrier network, the service provider analyzing the test results in view of the healthcare regiment to determine if a message should be sent by the service provider to a receiving device of at least one of a mentor and a healthcare professional for the individual.

A system and method to generate a Universal Identification Number (UIN) for every human being on the planet, and its RFID application to uniquely verify the identity, and apparatus for biosensor integrated device receiving GPS or cellular signals to determine location, and transmitting data through radio signals to identify, track, monitor, and rescue humans. UIN database comprising of public, health, and confidential data, protects privacy by hiding the sensitive information and providing the required information only to authorized agencies on ‘need to know’ basis, like medical emergency data to authorized hospitals for advance preparedness to save lives or to law enforcement agencies when authorized under specific circumstances. UIN secures credit, debit and ATM card transactions through additional code verification and fulfills a pending need for technological system to eliminate child abduction, identity fraud, credit card theft, terrorism, and helps in saving lives of people.