An apparatus is provided for airborne pathogen detection, which includes a crystal microbalance. The apparatus includes specific capture probes that are affixed to the crystal microbalance and are designed to bind to and capture a specific pathogen, such as a virus particle. This capture causes a change in mass of the crystal microbalance that can be detected. A method is provided for airborne pathogen detection, which includes calibrating a resonant frequency of the crystal microbalance to a mass on the crystal microbalance. The method also includes a step of conjugating the antibody to the crystal microbalance. The method also includes, for each measurement time, measuring a resonant frequency of the crystal microbalance and determining a mass change due to binding of the pathogen to the detector. This mass change is then related to pathogen load in the medium. A notification is output if the viral load exceeds a predetermined threshold.

A device and a method of using the device for determining hematocrit in a whole blood sample. The device includes a first portion having an introducer, at least one fluid channel, a fluid actuator, and an analysis sensor and conductivity sensor disposed within the fluid channel. The second portion includes at least one well containing at least one material. The first portion and second portion are movable with respect to each other. The introducer is configured to transfer at least a portion of the material from the well in portion two into the fluid channel of portion one. The method includes measuring the resistance over substantially the entire portion of a whole blood sample and calculating an average hematocrit level of the whole blood sample based on the measured resistance.

A gas sensor includes a quartz crystal unit and a sensitive layer formed on the quartz crystal unit and configured to adsorb a gas to be detected, wherein the sensitive layer is porous, and has a particle skeleton made of a plurality of conductive polymer particles and a polyelectrolyte that is at least partially disposed between the adjacent conductive polymer particles.

A plurality of sensing devices are inserted into a concrete mixture to be used at a construction site. The concrete mixture is poured to form one or more structural elements, wherein one or more sensing devices are embedded in the concrete of each structural element. Data relating to a first characteristic of the concrete in each structural element is received from the sensing devices. For each structural element, a second characteristic of the concrete of the associated structural element is determined, based on the first characteristic. A map showing the one or more structural elements is generated. For each of the one or more structural elements, a respective graphical indicator indicating the second characteristic associated with the respective structural element is displayed on the map. The map is displayed on a user device.

In at least one illustrative embodiment, a system may include a basin that includes an index plate positioned at a bottom of the basin. The basin is configured to receive a liquid analyte, such as a liquid food product or a nutrient broth. The index plate includes an array of multiple wells. Each well opens into an interior of the basin and is sized to receive a magnetostrictive sensor in a predetermined orientation. One or more sensor coils is positionable beneath each well. The basin may be filled with liquid analyte and magnetostrictive sensors may be positioned in the wells. The liquid analyte may be allowed to incubate at a controlled temperature. A controller may position a sensor coil beneath a well, apply a varying magnetic field to a magnetostrictive sensor in the well, and detect a frequency response of the magnetostrictive sensor. Other embodiments are described and claimed.

An odor measurement apparatus includes an odor sensor detecting an odor and an imaging device having a lens portion, in which an imaging direction of the imaging device and an introduction direction of air when the air is guided to a sensor surface of the odor sensor through an introduction port are substantially the same direction. The odor measurement apparatus detects odor substances contained in air using a sensor when an odor is measured, and measures attribute information of a measurement target or the like of the odor. An odor data management apparatus stores and manages odor data measured by the odor measurement apparatus.

Disclosed sensors can include at least one resonator (in some embodiments, at least two resonators) and various other structures that may be formed in association with the resonators. The at least one resonator in embodiments can include a bottom electrode, a piezoelectric layer, and a top electrode, wherein the piezoelectric layer is positioned between the bottom electrode and the top electrode.

A micro-electrical-mechanical system (MEMS) resonator device includes at least one functionalization material arranged over at least a central portion, but less than an entirety, of a top side electrode. For an active region exhibiting greatest sensitivity at a center point and reduced sensitivity along its periphery, omitting functionalization material over at least one peripheral portion of a resonator active region prevents analyte binding in regions of lowest sensitivity. The at least one functionalization material extends a maximum length in a range of from about 20% to about 95% of an active area length and extends a maximum width in a range of from about 50% to 100% of an active area width. Methods for fabricating MEMS resonator devices are also provided.

A method of manufacturing a biosensor having a microbeam linked to a support, at least one electrode a biological molecule A grafted onto the microbeam in a different zone from the zone where the electrode is embedded, and a mechanoelectrical transducer for converting variations of the mechanical properties of the microbeam into an electrical signal, when the biological molecule A is placed in contact with a biological molecule B to be detected and/or quantified. The method includes: formation of an electrode on fluoropolymer material sheet, passivation of the electrode(s), creation of the form of the biosensor in the sheet of polymer material and separation of this form from the sheet, functionalization either of a prefunctionalized zone or of a zone of the microbeam, this zone being different from the zone wherein the electrode is embedded, and grafting of a biological molecule A onto the functionalized zone.

Disclosed sensors can include at least one resonator (in some embodiments, at least two resonators) and various other structures that may be formed in association with the resonators. The at least one resonator in embodiments can include a bottom electrode, a piezoelectric layer, and a top electrode, wherein the piezoelectric layer is positioned between the bottom electrode and the top electrode.