摘要:
The present disclosure provides methods for packaging a chip and packaged chips in which the chip and packaging are co-planar and gap-less. In certain instances, the packaged chip has electrodes or fluidics integrated with the chip.
摘要:
An electrically passive device and method for in-situ acoustic emission, and/or releasing, sampling and/or measuring of a fluid or various material(s) is provided. The device may provide a robust timing mechanism to release, sample and/or perform measurements on a predefined schedule, and, in various embodiments, emits an acoustic signal sequence(s) that may be used for triangulation of the device position within, for example, a hydrocarbon reservoir or a living body.
摘要:
A method for performing a polymerase chain reaction (PCR) process on a treatment target liquid using a microchannel chip and a heating/cooling control apparatus is provided. The microchannel chip includes: a first substrate layer that has an introducing channel and a discharging channel; and a second substrate layer that is disposed on the first substrate layer and has a second substrate layer body and a metal film, the second substrate layer body having a microchannel connected to the two channels, the metal film structuring an upper surface of the microchannel. The heating/cooling control apparatus includes: a temperature regulator; a power source that supplies voltage to the temperature regulator; and a heating/cooling controller that controls heating or cooling of the temperature regulator by controlling the voltage. The heating/cooling controller controls the voltage to change the temperature of the temperature regulator. The heat of the temperature regulator is conducted to the liquid in the microchannel via the metal film, thereby achieving the PCR process.
摘要:
A droplet producing device (1) includes an outer tube (2); and an inner tube (3) that is arranged inside the outer tube (2) and feeds a droplet raw material, in which an inner tube discharge port (3b) opens to an inner tube tip portion (3a) formed on a downstream in a fluid feed direction, an outer tube discharge port (2b) opens to an outer tube tip portion (2a) formed on the downstream in the fluid feed direction, and in which a gap (2c) is formed between the outer tube (2) and the inner tube (3). It is preferable that the inner tube discharge port (3b) be provided inside the outer tube on an upstream of the outer tube discharge port (2b) in the fluid feed direction.
摘要:
The present invention relates to portable devices for point-of-care diagnostics that can perform measurements on a sample (e.g., blood, serum, saliva, or urine) and relay data to an external device for, e.g., data analysis. The device can comprise a paper-based diagnostic substrate and a base substrate that include electronic circuitry and electronic elements necessary for performing the measurements. The device can also comprise an antenna for near field communication with an external device. Another aspect of the invention relates to methods of using these devices.
摘要:
A technique is provided for incorporating pneumatic control in centrifugal microfluidics. The technique involves providing a chip controller that has pressurized fluid supply lines for coupling one or more pressurized chambers of the controller with ports of a microfluidic chip. At least part of the chip controller is mounted to a centrifuge for rotation with the chip. A flow control device is provided in each supply line for selectively controlling the pressurized fluid supply, and is electrically controlled. Bubble mixing, on and off-chip valving, and switching are demonstrated.
摘要:
A dc heater comprising: a discrete heating area made of a heat conductive material disposed on a surface that is electrically non-conductive; and at least one conductive trace configured to be connected to a dc voltage source and to heat the discrete heating area to a uniform temperature when connected to the dc voltage source, the at least one conductive trace disposed in an undulating configuration on the surface at least partially around the discrete heating area.
摘要:
A detector for detecting an optical signal from a sample that may be indicative of the presence, amount, or state of one or more analytes in the sample, the detector comprising: one or more excitation channels, each disposed within one of the conduits of the housing and adapted to direct an excitation signal of a prescribed excitation wavelength or range of excitation wavelengths toward the sample, and each excitation channel comprising: a light emitting element adapted to emit excitation light; and excitation optical elements defining an excitation optical path having an excitation optic axis, the excitation optical elements comprising a lens and an excitation filter constructed and arranged to transmit only light emitted by the light emitting element having the prescribed excitation wavelength or range of excitation wavelengths toward the sample, one or more emissions channels, each disposed within one of the conduits of the housing and adapted to receive an emission signal from the sample and detect an emission signal having a prescribed emission wavelength or range of emission wavelengths, and each emission channel comprising: emission optical elements defining an emission optical path having an emission optic axis, the emission optical elements comprising a lens and an emission filter constructed and arranged to transmit only light emitted by the sample having the prescribed emission wavelength or range of emission wavelengths; and a light-detecting element adapted to detect light transmitted by the emission optical elements and to convert the detected light to an electronic signal indicative of at least one of the presence and strength of the detected light, a housing, wherein each of the excitation and emission channels is disposed within a different conduit defined within the housing; wherein the excitation and emission optic axes are parallel to one another throughout their extents; and an optic lens constructed and arranged with respect to the excitation and emission channels to (1) direct excitation light transmitted by each excitation channel and impinging on a different portion of the optic lens at a prescribed location and (2) receive emission signals emitted by the sample at the prescribed location and to direct at least a portion of the received emission signals into each emission channel.
摘要:
The present technology relates generally to fluidics devices for measuring platelet coagulation and associated systems and methods. In some embodiments, a fluidics device includes an array of microstructures including pairs of generally rigid blocks and generally flexible posts. The fluidics device further includes at least one fluid channel configured to accept the array. The fluidics device can further include a measuring element configured to measure a degree of deflection of one or more of the flexible posts in the array. In some embodiments, the fluidics device comprises a handheld device and usable for point of care testing of platelet forces and coagulation.