The odor exploration method explores an odor based on odor information generated using a plurality of sensor elements each outputting a detection signal according to the state of adsorption by indicating an adsorption reaction unique to each odor substance, and an arithmetic unit generating the odor information by quantifying each detection signal from the sensor elements. The method includes a detection step detecting a first gas containing odor substances, a generation step generating a first odor information group generated based on a detection result of the first gas, a preparation step preparing a second odor information group generated based on a detection of a second gas, and a calculation step calculating a sum of or a difference between the second odor information group and the first odor information group based on a sum of or difference between the odor information generated for the first gas and for the second gas using the same sensor element.

A sensor is achieved by applying a layer of a mixture that contains polymer and conductive particles over a substrate or first surface, when the mixture has a first viscosity that allows the conductive particles to rearrange within the material. An electric field is applied over the layer, so that a number of the conductive particles are assembled into one or more chain-like conductive pathways with the field and thereafter the viscosity of the layer is changed to a second, higher viscosity, in order to mechanically stabilise the material. The conductivity of the pathway is highly sensitive to the deformations and it can therefore act as deformation sensor. The pathways can be transparent and is thus suited for conductive and resistive touch screens. Other sensors such as strain gauge and vapour sensor can also be achieved.

Methods of fabricating a bulk acoustic wave resonator structure for a fluidic device. The methods can include a first step of disposing a first conductive material over a portion of a first surface of a substrate to form at least a portion of a first electrode, the substrate having a second surface opposite the first surface. Then, a piezoelectric material may be disposed over the first electrode. Next, a second conductive material can be disposed over the piezoelectric material to form at least a portion of a second electrode. The second conductive material extends substantially parallel to the first surface of the substrate and the second conductive material at least partially extends over the first conductive material. The overlapping region of the first conductive material, the piezoelectric material, and the second conductive material form a bulk acoustic wave resonator, the bulk acoustic wave resonator having a first side and an opposing second side. An acoustic energy management structure is then disposed over a first side of the bulk acoustic wave resonator. Next a third conductive material is disposed over a portion of the second conductive material that extends beyond the bulk acoustic wave resonator, wherein the third conductive material forms an interconnect extending above the acoustic energy management structure in a direction substantially perpendicular to the first surface of the substrate. Finally a portion of the second surface of the substrate is removed to expose a chemical mechanical connection at the first electrode at a second side of the bulk wave acoustic resonator. Devices formed thereby are also included.

A sensor device includes a substrate having a substrate surface, a first IDT electrode positioned on the substrate surface, a second IDT electrode positioned on the substrate surface, a waveguide, and a protective film. The waveguide is positioned on the substrate surface and between the first IDT electrode and the second IDT electrode. The waveguide includes a first immobilized layer positioned on the substrate surface and a second immobilized layer positioned on the first immobilized layer. The second immobilized layer is positioned inside an outer edge of the first immobilized layer as seen in a plan view.

An cartridge is combined with a smart device which is capable of communicating with a network to perform a portable, fast, field assay of a small sample biological analyte. A closed microfluidic circuit for mixes the analyte with a buffer with functionalized magnetic beads capable of being specifically combined with the analyte. A detector communicates with the microfluidic circuit in which the mixed analyte, buffer and combined functionalized magnetic beads are sensed. A microcontroller is coupled to detector for controlling the detector and for data processing an output assay signal from the detector. A user interface communicates with the microcontroller for providing user input and for providing user output through the smart device to the network.

A method is disclosed comprising determining a concentration of one or more compounds of a fluid in an industrial water operation in real time. The determining of the concentration of the one or more components comprises contacting an array of sensors of a microelectromechanical system (MEMS) device with a sample of the fluid to provide a sample response indicative of the concentration of the one or more components. The method further provides adjusting or maintaining at least one operating parameter of the industrial water operation based on the concentration of the one or more components of the fluid.

Lateral boundaries of a fluidic passage of a fluidic device incorporating at least one BAW resonator structure are fabricated with photosensitive materials (e.g., photo definable epoxy, solder mask resist, or other photoresist), allowing for high aspect ratio, precisely dimensioned walls. Resistance to delamination and peeling between a wall structure and a base structure is enhanced by providing a wall structure that includes a thin footer portion having a width that exceeds a width of an upper wall portion extending upward from the footer portion, and/or by providing a wall structure arranged over at least one anchoring region of a base structure. Anchoring features may include recesses and/or protrusions.

A resonator is disclosed for the detection of a mass analyte, such as a biological analyte. The resonator has: a piezoelectric layer formed of a piezoelectric material; a first resonator region and a second resonator region each occupying a corresponding region of the piezoelectric layer; electrodes disposed to apply a driving signal to the piezoelectric layer to generate bulk acoustic waves, the electrodes being common to the first resonator region and the second resonator region. In operation, the first resonator region has a first resonant frequency and the second resonator region has a second resonant frequency. The first resonator region and the second resonator region differ from each other in that the first resonator region is adapted to receive a mass analyte for the mass analyte selectively to attach to a surface of the first resonator region. In operation, attachment of the mass analyte selectively at the first resonator region causes a greater frequency shift in the first resonant frequency than in the second resonant frequency. Also disclosed is a corresponding method for the detection of a mass analyte.

Devices that includes a first portion, the first portion including at least one fluid channel; a fluid actuator; an analysis sensor disposed within the fluid channel; a conductivity sensor disposed within the fluid channel; and an introducer; a second portion, the second portion comprising: at least one well, the well containing at least one material, wherein one of the first or second portion is moveable with respect to the other, wherein the introducer is configured to obtain at least a portion of the material from the at least one well and deliver it to the fluid channel, and wherein the fluid actuator is configured to move at least a portion of the material in the fluid channel.

According to various aspects, a resonator includes a paper base. The paper base includes a channel bounded by least partially infused wax into the paper base. The resonator further includes an electronically conductive segment physically contacting the paper base. The resonator further includes a hydrogel component coating at least a portion of the electronically conductive segment.