Abstract:
The present invention is to provide a microfluidic device capable of allowing a fluid to stably flow in a microchannel without using an external source such as a pump or a suction device, and the microfluidic device, provided with a microchannel to which a sample liquid is transported, includes: an inlet reservoir which reserves a sample liquid to be introduced into said microchannel; an inlet which is provided on a sample-introduced side of the microchannel, and communicates with the inlet reservoir; an outlet provided on a sample-discharged side of the microchannel; and an open channel which is provided as communicating with the outlet, and part of at least one surface of which is opened to the outside atmosphere, wherein the inlet is provided at a higher position in a gravity direction than the outlet.
Abstract:
A photostructurable ceramic is processed using photostructuring process steps for embedding devices within a photostructurable ceramic volume, the devices may include one or more of chemical, mechanical, electronic, electromagnetic, optical, and acoustic devices, all made in part by creating device material within the ceramic or by disposing a device material through surface ports of the ceramic volume, with the devices being interconnected using internal connections and surface interfaces.
Abstract:
A support unit for a microfluidic system includes a first support; a first adhesive layer provided on a surface of the first support; and a hollow filament laid on a surface of the first adhesive layer to have an arbitrary shape and functioning as a flow channel layer of the microfluidic system.
Abstract:
Provided is a microchip manufacturing method by which a functional film is formed in a flow path channel and resin microchip substrates are bonded. The manufacturing method has a first step of forming SiO2 films (12, 22) representing the functional films on a surface having a flow path channel (11) of a microchip substrate (10) and on a surface having a flow path channel (21) of a microchip substrate (20) respectively; a second step of exfoliating the SiO2 films formed on the microchip substrates (10, 20) except the SiO2 films formed on the flow path channels (11, 21) by a cohesive member; and a third step of placing the microchip substrates (10, 20) one over another in such a way that the surfaces on which the flow path channels (11, 21) are formed face inside, and bonding the substrates by laser welding, ultrasonic wave welding or thermocompression bonding.
Abstract:
A support unit for a microfluidic system includes a first support; a first adhesive layer provided on a surface of the first support; and a hollow filament laid on a surface of the first adhesive layer to have an arbitrary shape and functioning as a flow channel layer of the microfluidic system.
Abstract:
The present invention discloses a fluidic mixer of serpentine channel incorporated with staggered sudden-expansion and convergent cross sections, which comprises a flat cover and a channel body. The channel body further comprises two L-type mixer inlets, a mixing channel, and two L-type mixer outlets. The configuration of the mixing channel is a single serpentine channel incorporated with staggered sudden-expansion and convergent cross sections, wherein the serpentine structure and the sudden-expansion cross sections induces split flows, which further enable the fluid to stretch and fold so that the contact area within the fluid can be increased. The convergence after sudden expansion in cross section is to prepare the next action of sudden expansion, and such an iterative structure can obviously enhance the mixing effect. The present invention has the following characteristics: planar structure, which enables the measurement and fabrication, particularly the fabrication of micro mixing channel, to be easily undertaken; L-type mixer inlets and outlets, which enables the connection between the mixing channel and external channels to be robust so that the linkage and encapsulation of the micro mixing channel will be advantaged thereby; single-channel design, which enables the flow resistance not to increase owing to the mixing action, and which also enables the working fluid to be able to involve two-phase fluids containing suspension solid particles; low pressure drop; and no bulb residence inside the mixing channel.
Abstract:
High throughput screening of crystallization of a target material is accomplished by simultaneously introducing a solution of the target material into a plurality of chambers of a microfabricated fluidic device. The microfabricated fluidic device is then manipulated to vary the solution condition in the chambers, thereby simultaneously providing a large number of crystallization environments. Control over changed solution conditions may result from a variety of techniques, including but not limited to metering volumes of crystallizing agent into the chamber by volume exclusion, by entrapment of volumes of crystallizing agent determined by the dimensions of the microfabricated structure, or by cross-channel injection of sample and crystallizing agent into an array of junctions defined by intersecting orthogonal flow channels.
Abstract:
The invention relates to a micro-system intended to receive beads and to obtain a precise positioning of the beads at preset locations in the micro-system. This micro-system comprises a tank that has a cavity, the cavity being fitted with blocking elements allowing the beads to be ordered and stacked in the interstices between the blocking elements, the interstices constituting the preset locations. It also comprises a cap anchored hermetically to the tank and input means and output means allowing a fluid to flow in the cavity. The invention also relates to the implementation and use of the bead-filled micro-system.
Abstract:
The microreactor is completely integrated and is formed by a semiconductor body having a surface and housing at least one buried channel accessible from the surface of the semiconductor body through two trenches. A heating element extends above the surface over the channel and a resist region extends above the heating element and defines an inlet reservoir and an outlet reservoir. The reservoirs are connected to the trenches and have, in cross-section, a larger area than the trenches. The outlet reservoir has a larger area than the inlet reservoir. A sensing electrode extends above the surface and inside the outlet reservoir.
Abstract:
A support unit for a microfluidic system includes a first support; a first adhesive layer provided on a surface of the first support; and a hollow filament laid on a surface of the first adhesive layer to have an arbitrary shape and functioning as a flow channel layer of the microfluidic system.