An imaging device and method of using is provided that requires no traditional optics but uses an addressable array of vertically oriented carbon nanotubes. The technique relies on the ability to reduce the nearest neighbor spacing between the carbon nanotubes to less than the wavelength of light used in traditional optical microscopes. The nanoscope can have a resolution of less than 100 nm. Electrophoresis deposition can be used to direct the assembly of the carbon nanotubes onto interconnects in an integrated circuit, which could be used to address the array. The device is portable, compact, and does not utilize complicated components. It also derives spatially resolved dielectric and chemical properties of a sample to be imaged.

An environmental sensor for an electronic device includes a substrate, a first sensing unit having a first sensor electrode disposed on the substrate, a second sensing unit having a second sensor electrode disposed on the substrate, an insulating layer covering the first sensor electrode, and a cover that is disposed over the first and second sensor electrodes, the cover including at least one hole through which chemical particles pass. The first and second sensing units each sense one of a capacitance-change due to the chemical particles that pass through the hole and then adhere to the insulating layer located on the first sensor electrode and a resistance-change due to the chemical particles that pass through the hole and then adhere to the second sensor electrode.

The present invention is directed to tube-in-a-tube electronic materials and electronic chemical sensors comprising tube-in-a-tube configurations such as covalently functionalized double-walled carbon nanotubes.

A sensor of volatile substances includes: a first electrode structure and a second electrode structure capacitively coupled, comb-fingered, and arranged coplanar in a plane; and a sensitive layer, of a sensitive material that is permeable to a volatile substance and has electrical permittivity depending upon a concentration of the volatile substance absorbed by the sensitive material. The sensitive layer extends from opposite sides of the plane.

A capacitive environmental sensor and a method for determining the presence of a target substance (e.g. water) using differential capacitive measurements. The sensor includes a semiconductor substrate having a surface. The sensor also includes a plurality of sensor electrodes located on the surface. The electrodes are laterally separated on the surface by intervening spaces. The sensor further includes a sensor layer covering the electrodes. The sensor layer has a permittivity that is sensitive to the presence of the target substance. The surface of the substrate, in a space separating at least one pair of electrodes, includes a recess. The surface of the substrate, in a space separating at least one pair of electrodes, does not include a recess. The sensor may be provided in a Radio Frequency Identification (RFID) tag. The sensor may be provided in a smart building.

The invention relates to a capacitive sensing material and a method of manufacturing thereof, a capacitive sensing coating formulation, a capacitive chip, a capacitive sensor, a method for manufacturing a coated chip, a method for analysing the composition of a gaseous mixture, a use of particles comprising titanium oxide and platinum for sensing hydrogen, and a use of capacitive sensing material for detecting a gas leak. The capacitive sensing material comprises composite particles wherein porous titanium dioxide is at least in part coated with platinum particles.

A sensor device includes: a first protective layer; at least one pad positioned on an upper part of at least a part of the first protective layer; at least one sensing pattern layer positioned on an upper part of at least a part of the first protective layer and electrically connected to one of the at least one pad; a flexible body layer positioned on upper parts of the at least one pad and the at least one sensing pattern layer; and a shield plate layer positioned on an upper part of at least a part of the flexible body layer.

The invention pertains to a CellDrum electrode arrangement for measuring mechanical stress, comprising a mechanical holder (1) and a non-conductive membrane (4), whereby the membrane (4) is at least partially fixed at its circumference to the mechanical holder (1), keeping it in place when the membrane (4) may bend due to forces acting on the membrane (4), the mechanical holder (1) and the membrane (4) forming a container, whereby the membrane (1) within the container comprises an cell-membrane compound layer or biological material (3) adhered to the deformable membrane 4 which in response to stimulation by an agent may exert mechanical stress to the membrane (4) such that the membrane bending stage changes whereby the container may be filled with an electrolyte, whereby an electric contact (2) is arranged allowing to contact said electrolyte when filled into to the container, whereby within a predefined geometry to the fixing of the membrane (4) an electrode (7) is arranged, whereby the electrode (7) is electrically insulated with respect to the electric contact (2) as well as said electrolyte, whereby mechanical stress due to an agent may be measured as a change in capacitance.

A diaper includes a diaper body and a wet diaper monitoring device, which includes a disposable pouch and a monitoring device. The monitoring device includes a monitoring casing, a first sensor electrode, a second sensor electrode, a sensing circuitry and an indicator. The first sensor electrode and the second sensor electrode are provided on an inner surface of and received in the monitoring casing, and form a single planar capacitor when the diaper body is dry. When the diaper body becomes wet, a capacitance between the first sensor electrode and the second sensor electrode increases substantially so as to transform the single planar capacitor of the first sensor electrode and the second sensor electrode into two much larger series connected capacitors.

For sensing pH of a fluid, a heating apparatus of a semiconductor die controls a temperature of the fluid to a first temperature. A first voltage of a gate of a floating gate transistor of the semiconductor die is measured while the temperature of the fluid is at the first temperature. Also, the heating apparatus controls the temperature of the fluid to a second temperature that is different than the first temperature. A second voltage of the gate is measured while the temperature of the fluid is at the second temperature. The pH of the fluid is determined based on the first and second voltages, the first temperature and the second temperature.