摘要:
The present invention relates to a a security bollard and, in particular, to a security bollard designed to be used as a protective measure to be placed in front of shop fronts and Automatic Teller Machines (ATMs) that may be subjected to ramming by vehicles. The bollard includes a first upright hollow member having an outer wall defining a chamber, and a plurality of vertical longitudinal jamming rods disposed inside the chamber. Each jamming rod has associated therewith a biasing means for biasing the members in a longitudinal direction so as to act like a disk brake on cutting implements attempting to cut through the jamming rods, and to also dose the gap created by the cut should the cutting implement be retrieved and cutting attempted again.
摘要:
This invention is in the field of medical devices. Specifically, the present invention provides portable medical devices that allow real-time detection of analytes from a biological fluid. The methods and devices are particularly useful for providing point-of-care testing for a variety of medical applications. In particular, the medical device reduces interference with an optical signal which is indicative of the presence of an analyte in a bodily sample.
摘要:
The present invention relates to new compositions of matter and articles of manufacture comprising SWNTs as nanometer scale conducting rods dispersed in an electrically-insulating matrix. These compositions of matter have novel and useful electrical, mechanical, and chemical properties including applications in antennas, electromagnetic and electro-optic devices, and high-toughness materials. Other compositions of matter and articles of manufacture are disclosed. including polymer-coated and polymer wrapped single-wall nanotubes (SWNTs), small ropes of polymer-coated and polymer-wrapped SWNTs and materials comprising same. This composition provides one embodiment of the SWNT conducting-rod composite mentioned above, and also enables creation of high-concentration suspensions of SWNTs and compatibilization of SWNTs with polymeric matrices in composite materials. This solubilization and compatibilization, in turn, enables chemical manipulation of SWNT and production of composite fibers, films, and solids comprising SWNTs.
摘要:
A method for detecting analytes involves measuring the fluorescence of a sample of fluorescence-attenuated carbon nanotubes, then exposing the sample to a target analyte, and then measuring the fluorescence again. The fluorescence-attenuated nanotubes include a chemical having quenching portion that interacts with the nanotubes and attenuates the fluorescence, a receptor portion that binds to a target analyte and a tether portion that connects the receptor portion to the quenching portion. If the target analyte binds to the receptor portion of the chemical, the interaction between the chemical and the nanotubes and the chemical is weakened and the original fluorescence of the carbon nanotubes is restored.
摘要:
An apparatus, system, and method are disclosed for reducing rotational vibration transmission within a data storage system. A storage device apparatus comprises a carrier having opposing first and second side plates. A support point may be disposed within the first side plate at about a longitudinal center region of the carrier. The support point is configured to contact an enclosure that mounts a plurality of carriers and is the sole support point in the first side plate. Preferably, the support point is positioned such that minimal rotational vibration is transmitted within the data storage system once the carrier is placed in an enclosure housing a plurality of carriers. A second support point may be disposed in the second side plate.
摘要:
A method for manufacturing an enzymatic reagent ink for use in analytical test strips (such as electrochemical-based analytical test strips configured for the determination of glucose in blood) includes determining a first relationship between wetability of a representative hydrophobic silica material (e.g., a hydrophobic fumed silica material) and at least a first calibration characteristic (for example, a calibration slope) of an analytical test strip that includes an enzymatic reagent ink containing the representative hydrophobic silica material. In the method, the first relationship defines a minimum wetability that provides an acceptable first calibration characteristic. The method also includes determining a second relationship defining wetability of a mixture of a particular hydrophobic silica material and a particular surfactant across a range of relative amount of the particular hydrophobic silica material and the particular surfactant and, subsequently, combining an amount of the particular hydrophobic silica material, an amount of the particular surfactant, and an amount of enzyme (such as glucose oxidase) to form an enzymatic reagent ink. Moreover, the amounts of the particular hydrophobic silica material and the particular surfactant are predetermined based on the second relationship to provide at least the minimum wetability defined by the first relationship.
摘要:
This invention is in the field of medical devices. Specifically, the present invention provides portable medical devices that allow real-time detection of analytes from a biological fluid. The methods and devices are particularly useful for providing point-of-care testing for a variety of medical applications. In particular, the medical device reduces interference with an optical signal which is indicative of the presence of an analyte in a bodily sample.