Abstract: A physically unclonable function (PUF) device comprises a plurality of conductors, at least some of which are arranged so that they interact electrically and/or magnetically with one another. A media surrounds at least a portion of each of the conductors, and circuitry applys an electrical challenge signal to at least one of the conductors and for receiving an electrical output from at least one of the other conductors to generate an identifying response to the challenge signal that is unique to the device.

Abstract: The present invention provides a device with a pressure control system and methods for controlling the application of negative pressure to an external surface of an individual for creating and/or maintaining patency of the upper airway passage. The device is configured to fit under the chin of a subject at an external location corresponding approximately with the subject's internal soft tissue associated with the neck's anterior triangle. The pressure control system contains control module elements that may include circuit board elements, digital output barometer elements, sensor elements, processing elements and memory elements to optimize device function and safety of the device through regulation of the flow rate of the air pump.

Abstract: There is provided a sample preparation device comprising a sample preparation vessel and a bead manipulation mechanism for manipulating sample preparation beads in the vessel. The bead manipulation mechanism comprises: one or more magnets arranged to produce a magnetic field for manipulating, in use, one or more beads in the vessel. Each magnet is attached to a support frame by a biasing support arranged to support the magnet in contact against an outer surface of the vessel such that the magnet maintains contact with the vessel during relative movement between the magnets and the vessel.

Abstract: There is provided a sample ejection system for ejecting a sample from a flow of fluid, the system comprises: a fluid flow channel for receiving, in use, the flow of fluid; a fluid inlet channel connected to the flow channel and arranged to receive, in use, pressurised fluid; a fluid outlet channel connected to the flow channel at a location downstream in the flow direction of the flow of fluid and comprises an outlet. The system is arranged such that, in use, pressurised fluid is applied to the fluid flow channel via the fluid inlet channel to drive fluid from the region of the fluid flow channel between the fluid inlet and outlet channels through the fluid outlet channel and out of the outlet.

Abstract: A physically unclonable function (PUF) device comprises a plurality of optical fibres, at least some of which are arranged such that they are optically coupled. A media surround at least a portion of the optical fibres and at least one light source is configured to transmit light through one or more of the optical fibres. There is provided at least one light sensor configured to receive the transmitted light from one or more of the optical fibres and provide an output. Circuitry applies a challenge signal to at least one of the fibres using at least one light source and receives the output from the at least one light sensor, using the output to generate an identifying response to the challenge signal. The fibres are arranged such that the identifying response is unique to the device.

Abstract: A phased array antenna comprises an array of reflective cells, each cell being defined by a wall positioned within the array the wall arranged to define a waveguide, and having a moveable reflector positioned within the wall. Each reflector is arranged such that it is not in electrical contact with its respective wall and such that, in use it can be moved to tune the antenna. A feed and subreflector are positioned within the array and arranged to transmit and/or receive electromagnetic signals to and/or from the array.

Abstract: A sensing system for determining the location and orientation of an object which comprises a magnetic tag. The sensing system comprises selection coils and interrogation coils. The selection coils are arranged to generate a spatially-varying DC magnetic field from which the location of the tag can be determined in use. At least some of the interrogation coils are arranged to generate one or more AC magnetic fields and at least some of the interrogation coils are arranged to receive harmonics, intermodulation products or time dependent variations of the AC magnetic fields, from which the orientation of the tag is determined in use.

Abstract: A manifold for a medicament delivery device configured to deliver discrete doses of medicament contained in a plurality of individual compartments spaced along a carrier strip and sealed by a sealing layer to form a medicament carrier, the manifold comprising: at least one opening mechanism comprising a release member arranged to engage between the carrier strip and the sealing layer of a medicament carrier so as to separate the sealing layer from the carrier strip and thereby open a compartment of the medicament carrier as it is advanced into an entrainment position; wherein the release member includes a surface configured to cover the opened compartment when in the entrainment position so as substantially to contain the medicament dose of the opened compartment.

Abstract: A micro-nozzle with an integrated filter structure for receiving fluids at pressures between 0.1 MPa to 50 MPa, comprising: at least one fluid inlet, a fluid outlet comprising at least one orifice, a primary filter structure positioned downstream from the at least one fluid inlet and arranged to provide statistical filtration of fluid passing therethrough.

Abstract: A manifold for a medicament delivery device configured to deliver discrete doses of medicament contained in a plurality of individual compartments spaced along a carrier strip and sealed by a sealing layer to form a medicament carrier, the manifold comprising: at least one opening mechanism comprising a release member arranged to engage between the carrier strip and the sealing layer of a medicament carrier so as to separate the sealing layer from the carrier strip and thereby open a compartment of the medicament carrier as it is advanced into an entrainment position; wherein the release member includes a surface configured to cover the opened compartment when in the entrainment position so as substantially to contain the medicament dose of said opened compartment.

Abstract: A physically unclonable function (PUF) comprises a plurality of conductors, at least some of which are arranged so that they interact electrically and/or magnetically with one another. A media surrounds at least of portion of each of the conductors and further defines at least one cavity, where the cavity is structured to provide the device with an environmentally dependent characteristic. Circuitry applies an electrical challenge signal to at least one of the conductors and receives an electrical output from at least one of the other conductors to generate an identifying response to the challenge signal that is unique to the device.

Abstract: A physically unclonable function (PUF) device comprises a plurality of conductors, at least some of which are arranged so that they interact electrically and/or magnetically with one another. A media surrounds at least a portion of each of the conductors and a plurality of temperature compensation particles are arranged throughout the media, where the temperature compensation particles have a temperature coefficient selected such that they compensate for temperature-related effects in the PUF device by making the permittivity and/or permeability of the media substantially temperature independent. Circuitry applies an electrical challenge signal to at least one or the conductors and receives an electrical output from at least one of the other conductors to generate an identifying response to the challenge signal that is unique to the device.

Abstract: A liquid droplet production apparatus comprising a perforate membrane and an actuator. The actuator is configured to vibrate the perforate membrane such that a liquid in contact with the perforate membrane during use is caused to pass through at least one aperture of the perforate membrane and to be ejected as liquid droplets from the perforate membrane. The perforate membrane includes one or more stiffening structures for increasing the stiffness of the perforate membrane, the one or more stiffening structures each being defined by a local transverse deformation of the perforate membrane. A removable cartridge, a perforate membrane, an actuator assembly for use in such a liquid droplet delivery apparatus, and a method of manufacturing a perforate membrane for such a liquid droplet apparatus.

Abstract: A physically unclonable function (PUF) device comprises a plurality of conductors, at least some of which are arranged so that they interact electrically and/or magnetically with one another. A media surrounds at least a portion of each of the conductors, and circuitry is configured for applying an electrical challenge signal to at least one of the conductors and for receiving an electrical output from at least one of the other conductors to generate an identifying response to the challenge signal that is unique to the device. The media comprises a plurality of interactive regions, the interactive regions having an electrical and/or magnetic response characteristic which is permanently altered in response to a predetermined environmental event, and the identifying response is altered with the response characteristic.

Abstract: A phased antenna array device comprises at least one input port for interfacing receive and transmit RF signals to/from an antenna array. A feeding line is provided to carry RF signals of two orthogonal polarizations from the input port P1, and at least one antenna feed element with an aperture or cross section having an order of symmetry C4 and supporting RF signals of two orthogonal polarizations is provided. At least one first substrate contains a plurality of antenna elements integrated into the substrate, with each antenna element capable of operating at two orthogonal polarizations. A plurality of phase shifters are connected to corresponding antenna elements, each phase shifter operating at two orthogonal polarizations, the output port of each phase shifter being connected to a short circuit.

Abstract: An acoustic droplet ejection apparatus comprises an acoustic actuator and a fluid well having abase and at least one side wall. The actuator is arranged to couple acoustic energy into the fluid well through the side wall.

Abstract: A unit verification method to be performed on a unit under test (UUT) comprises connecting a verification device to the UUT. The verification device applies a set of challenge signals to the UUT and then measures the responses of the UUT to the challenge signals. The responses of the UUT are based on the challenge signals and the physical properties of the UUT. A registration key is generated based on the measured responses and is stored. The registration key is unique to the UUT.

Abstract: There is provided a sample ejection system for ejecting a sample from a flow of fluid, the system comprises: a fluid flow channel for receiving, in use, the flow of fluid; a fluid inlet channel connected to the flow channel and arranged to receive, in use, pressurised fluid; a fluid outlet channel connected to the flow channel at a location downstream in the flow direction of the flow of fluid and comprises an outlet. The system is arranged such that, in use, pressurised fluid is applied to the fluid flow channel via the fluid inlet channel to drive fluid from the region of the fluid flow channel between the fluid inlet and outlet channels through the fluid outlet channel and out of the outlet.

Abstract: A droplet dispenser comprises a chamber (3) with a fluid inlet valve (2) and a fluid outlet valve (4). The chamber (3) is arranged such that the volume of the chamber may be varied in use to cause fluid to be alternately drawn in to the chamber (3) through the inlet valve (2) then subsequently expelled from the chamber through the outlet valve (4) to dispense a droplet. The droplet dispenser is capable of dispensing from an open reservoir and one may change the dispensed drop volume simply and easily. The droplet dispenser can also handle liquids which are normally seen as difficult to dispense, such as cyanoacrylate adhesives.

Abstract: A single junction sorter for a microfluidic particle sorter, the single-junction sorter comprising: an input channel, configured to receive a fluid containing particles; an output sort channel and an output waste channel, each connected to the input channel for receiving the fluid therefrom; a bubble generator, operable to selectively displace the fluid around a particle to be sorted and thereby to create a transient flow of the fluid in the input channel; and a vortex element, configured to cause a vortex in the transient flow in order to direct the particle to be sorted into the output sort channel.