To provide a technique for performing a highly reliable measurement in sensing a sensing object in a sample solution based on a frequency variation of the crystal resonator 4. In a sensing method that causes the sensing object to attach to the crystal resonator 4 and measures an amount of the sensing object from the frequency variation caused by an effect of mass addition, an oscillation frequency is measured before a measurement region is caused to be in a liquid phase, and subsequently the sample solution is supplied to the measurement region. Thereafter, a liquid component in the measurement region is removed to cause the measurement region to be in a gas phase. An oscillation frequency is measured to measure a frequency difference from the oscillation frequency before the sample solution is supplied to the measurement region. Therefore, since a piezoelectric resonator oscillates in the gas phase, an error of the oscillation frequency and a decrease in a variation amount of the oscillation frequency caused by the crystal resonator 4 contacting a liquid phase are restrained, thus ensuring sensing the sensing object with high accuracy.

Embodiments relate to a system for particulate matter collection and analysis. The embodiments include system components and an associated control system. One or more of the components are dynamically adjustable. Fluid flow is captured by a capture medium positioned relative to a fluid channel, and particulate matter present within the fluid flow is acquired. A modifiable component is provided relative to the capture medium. The control system is provided in communication with the system components and functions to provide and support dynamic adjustment of the modifiable component in response to acquired particulate matter and analysis thereof.

A sensing device is provided. The sensing device includes a heat regulation mechanism to regulate a temperature of a piezoelectric resonator corresponding to a voltage, and uses a sensing sensor to cause a sensing object to adsorb to and desorb from the piezoelectric resonator by increase and decrease of the temperature. A drive voltage is regulated to regulate an amplification factor of a heat regulation voltage input to a drive voltage regulator that regulates the temperature of the heat regulation mechanism corresponding to the type of a sensing sensor connected to a device main body. Therefore, when a CQCM sensor that heats a crystal resonator using a heater circuit and a TQCM sensor that regulates a heat of the crystal resonator sing a Peltier element are each used, regulation ranges of the driving powers supplied to the respective heater circuit and Peltier element can be changed.

A method for reducing electrode gap distances in an electronic device having a first electrode spatially separated from a second electrode by an electrode gap can comprise selecting (810) a milometer gap size to bind a biological material based on a size of the biological material and binding effects with the biological material. The method can further comprise coating (820) at least one surface of an electrode gap region with a first layer including molecular recognition groups, and coating (830) the at least one surface with a second layer including electrically-conductive solids that are configured to bond with the molecular recognition groups. The electronic device can be further coated (840) with additional alternating layers of the molecular recognition groups and the electrically-conductive solids to reach the nanometer gap size between a first electrode and a second electrode of the electronic device.

The following is an apparatus and a method that enables the automated collection and identification of airborne particulate matter comprising dust, pollen grains, mold spores, bacterial cells, and soot from a gaseous medium comprising the ambient air. Once ambient air is inducted into the apparatus, aerosol particulates are acquired and imaged under a novel lighting environment that is used to highlight diagnostic features of the acquired airborne particulate matter. Identity determinations of acquired airborne particulate matter are made based on captured images. Abundance quantifications can be made using identity classifications. Raw and summary information are communicated across a data network for review or further analysis by a user. Other than routine maintenance or subsequent analyses, the basic operations of the apparatus may use, but do not require the active participation of a human operator.

A visibly perceived colorimetric pathogen sensor (100) can comprise a substrate (110) and an molecular recognition group (120) coupled to the substrate (110). The molecular recognition group (120) can be operable to bind to a target pathogen (130). Upon the molecular recognition group (120) binding with the target pathogen (130), reflected light can be altered thereby changing apparent color.

Technologies are described for detecting a pathogen. An example system can include a sensor array (118) having a plurality of sensors that include virus sensors (112) which directly detect a whole vims and at least one of a biomarker sensor, antibody sensor, saturated oxygen sensor, temperature sensor, and heart rate sensor (114a-114n). The system also includes executable instructions that receive sensor output from at least a portion of sensors included in the sensor array (118), assign weights to the sensor output of individual sensors in the sensor array based (118) in part on characteristics of the individual sensors to detect the response signature associated with the pathogen, and determine whether the pathogen has been detected based on the weights assigned to the sensor output of the individual sensors. The system can output (124) an indication whether the pathogen has been detected.

The following is an apparatus and a method that enables the automated collection and identification of airborne particulate matter comprising dust, pollen grains, mold spores, bacterial cells, and soot from a gaseous medium comprising the ambient air. Once ambient air is inducted into the apparatus, aerosol particulates are acquired and imaged under a novel lighting environment that is used to highlight diagnostic features of the acquired airborne particulate matter. Identity determinations of acquired airborne particulate matter are made based on captured images. Abundance quantifications can be made using identity classifications. Raw and summary information are communicated across a data network for review or further analysis by a user. Other than routine maintenance or subsequent analyses, the basic operations of the apparatus may use, but do not require the active participation of a human operator.

A sensor for sensing the concentration of at least one biological species in blood includes a support, at least one waveguide, and an optomechanical resonator hanging to the support. The optomechanical resonator is optically coupled to the waveguide. The optomechanical resonator is configured to vibrate in a volume mode and includes at least one face extending in the plane of the sensor and is configured to receive molecules of the given species. The optical resonator includes a body comprising an optical active area and an optical insulation layer deposited at least in line with the optical active area so as to confine at least partially an electromagnetic wave in the body.

A particle collection cartridge includes a first side having a particle intake region, a second side having a particle inspection region, supply and uptake reels, a tape guide, tape, a first pin, and a second pin. The tape is wound about the supply reel, extends to the first pin, across the tape guide, to the second pin, and terminates at the uptake reel. The tape includes an adhesive surface to collect particles entering the particle intake region. The first and second pins are fixed to not rotate.