Abstract:
Disclosed is a portable fluorescence correlation spectroscopy instrument tha t includes an excitation source (10), at least one of alight focusing element (12) positioned to receive light emitted by the excitation source, a detecto r (40a, 40b) for detecting light, the detector positioned to receive light emitted by a sample excited by the excitation source, and a correlator coupl ed to the detector, the correlator for processing data received at the detector and providing data including autocorrelation data, crosscorrelation data, or a combination thereof.
Abstract:
The invention features a method of assaying for the interaction of a probe a nd an unknown target, said method including a) exciting a sample with radiation , the sample including at least one unknown target, at least one probe, and at least one fluorescent tag, b) measuring the fluorescence from a subvolume of the sample, and c) analyzing the fluctuations of the fluorescence.
Abstract:
A low impedance touch sensor detects manual contact of a dielectric substrate 10 by a human user. The sensor includes a conductive electrode pad 16, surrounded by an electrode 18, spaced apart by channel 20. The two electrodes are placed on the undersurface of the dielectric substrate, with the user's touch contact being applied to the opposite surface. An active electrical component, such as a transistor 26 is located on the substrate and connecting the two electrodes. A resistor 28 may also connect the electrodes. The electrode 18 is connected to a strobe line 22, while one terminal of the transistor is connected to sense line 24.
Abstract:
A variable angle transducer interface block apparatus and related systems and methods are disclosed. The variable angle transducer interface block apparatus has an interface block having a mounting receiver. The interface block is positioned proximate to a material wall. A curved mounting structure is movably connected to the mounting receiver. A transducer is mounted on the curved mounting structure, wherein an angle of an acoustic signal transmitted by the transducer into the material wall is adjustable by movement of the curved mounting structure relative to the mounting receiver.
Abstract:
Provided herein are nanofibrous meshes and xerogels used for selectively filtering target compounds or elements from a liquid. Also provided herein are methods for forming nanofibrous meshes and xerogels, methods for treating a liquid using nanofibrous meshes and xerogels, and methods for analyzing a target compound or element using nanofibrous meshes and xerogels.
Abstract:
A temperature measurement system capable of operating in harsh environments including a temperature sensor having an antenna, diode, and dielectric layer disposed on the object of interest is provided, wherein the antenna includes a buried portion that extends through and is electrically coupled to the object of interest, and an exposed portion disposed upon an outer surface of the dielectric layer and the diode is coupled between the object of interest and the exposed portion of the antenna. The antenna is configured to receive interrogating signals from transmitter, and to transmit response signals corresponding to the resonant frequency of the temperature sensor and its harmonics, which are indicative of the measured temperature of the object of interest. A receiver detects the response signals and correlates the frequency to a known temperature response of the dielectric material. Methods of making and using the temperature measurement system are also provided.
Abstract:
A system for detecting analyte that includes a sensor adapted to detect the analyte, the sensor including a polymer matrix, fluorophores and a membrane, an excitation source to excite a fluorophore of the sensor, a first detector adapted to detect light of a first wavelength emitted by the sensor, a second detector adapted to detect light of a second wavelength emitted by the sensor, and a processor for processing signals corresponding to light detected by the detectors.