108 results about "Micro capillary" patented technology

A thermal cycling method and device is disclosed. The device comprises a sample chamber whose temperature can be rapidly and accurately modulated over a range of temperatures needed to carry out a number of biological procedures, such as the DNA polymerase chain reaction. Biological samples are placed in glass micro capillary tubes and then located inside the sample chamber. A programmable controller regulates the temperature of the sample inside the sample chamber. Monitoring of the DNA amplification is monitored by fluorescence once per cycle or many times per cycle. The present invention provides that fluorescence monitoring of PCR is a powerful tool for DNA quantification.

A thermal cycling method and device is disclosed. The device comprises a sample chamber whose temperature can be rapidly and accurately modulated over a range of temperatures needed to carry out a number of biological procedures, such a the DNA polymerase chain reaction. Biological samples are placed in glass micro capillary tubes and then located inside the sample chamber. A programmable controller regulates the temperature of the sample inside the sample chamber. Once a heating cycle is completed, the controller opens a door to the chamber for venting hot air out and cool ambient air is moved in. Temperature versus time profiles corresponding to optimum denaturation, annealing and elongation temperatures for amplification of DNA are achieved by the present invention.

The invention provides a preparation method of a sapphire micro-capillary. An edge-defined film fed lifting growth technology is utilized. The preparation method comprises the following steps of (1) selecting a raw material, i.e., selecting high-purity aluminum oxide as the raw material; (2) machining a die; (3) placing the raw material in a crack between an outer die and an inner die, then, placing the die into a crucible, and next, placing the crucible in a crystal growing furnace; and (4) vacuumizing the crystal growing furnace, heating to melt aluminum oxide to form a melt, then, lifting the melt to the top of the inner die, starting to drop seed crystals, seeding and lifting. By using the method provided by the invention, defects that bubbles are generated on inner and outer walls of a machined sapphire pipe, and the parts containing the bubbles on the inner and outer walls need to be polished are avoided, and the one-step formation of the sapphire micro-capillary with a small internal diameter is realized; and in addition, the preparation method has the advantages of simple process, convenience in machining, high rate of finished products and the like.

A system and the method for transport of microscopic objects/particles involving the use of laser source operatively connected to a microscope objective which is adapted to generate optical focal spots on said particle(s) with asymmetric intensity profile in transverse plane followed by varying the said asymmetry of the gradient optical forces on the micron sized object/particles to thereby transport the microscopic object(s). The system and the method can be used to transport microscopic objects including i) transportation of cells and intra-cellular organelles, ii) acceleration of microscopic objects along any direction in a plane transverse to the direction of propagation of laser beam, iii) optical channeling of objects through a micro-capillary from one micro-well to another and transfer to another channel after desired processing, iv) sorting of microscopic objects, v) optical control of micro-machines, micro-fluidic devices etc. Importantly the apparatus and the method of the invention would have use in various biotechnological and micro electromechanical systems. Also the system and method for optical transportation of microscopic objects, would be capable of transporting objects of varying dimensions ranging from sub-micron to few tens of microns.

Microreactors, methods of fabricating, and using such microreactors comprises a substrate having an outer periphery and composing two monolithic sections, each of said monolithic sections comprising two opposed main surfaces and one or more edges extending between the main opposed surfaces. One of the main surfaces from each of the monolithic sections are joined together at a substantially planar junction. The microreactor further comprises at least one microcapillary flow passage defined by surfaces within said substrate and having first and second ends. One or more inlets connect the outer periphery of said substrate with the first end of said microcapillary flow passage. One or more outlets connect the outer periphery of said substrate with the second end of said microcapillary flow passage, which may narrowingly taper. The substrate can be made from high purity fused silica. A metallic reagent and/or catalyst can be incorporated in the micro capillary passage.

The invention belongs to the technical field of fiber couplers, and particularly relates to a hollow-core antiresonance photonic crystal fiber coupler and application thereof. The fiber coupler is formed by two hollow-core antiresonance fibers with polished side faces. The basic structure of each hollow-core antiresonance fiber comprises a fiber core, a circle of micro-capillary inner covering layer around the fiber core and an outer covering layer covering the exterior of the micro-capillary inner covering layer. The polished faces of the hollow-core antiresonance fibers are arranged on the outer covering layer and are attached to each other and subjected to fusion or tapering, so a fiber coupler is manufactured. Before the tapering or during the tapering, the ring distance of two rings near the attached faces is reduced or increased, so the mode coupling of the fiber core of the two hollow-core antiresonance fibers is optimized. The fiber coupler is simple in design and highly practical, can be used for pulse laser, especially, full-fiber coupling and laser beam splitting of femtosecond laser and can be applied in a hollow-core fiber gyroscope to replace a solid fiber coupling module.

The invention relates to a method for using a micropump based on capillary action, characterized in that the micropump is composed of a capillary pump chamber, a partition valve, a sample feeding micropipe and a liquid storage microchamber, wherein the capillary pump chamber is a micropipeline network The separation valve is a micropipe or microcavity connecting the capillary pump cavity and the micropipe for sampling; the micropipe for sampling is a micropipe between the inlet and the microcavity for the liquid storage, and the microcavity for the liquid storage is a culture chamber Or the reaction chamber, located at the end of the sampling micropipe. How to use the micropump: 1) Add samples or reagents into the injection port, so that it is driven by capillary force to fill the micropipe for sampling, and stop at the entrance of the microcavity for the liquid storage due to the action of the capillary microvalve; 2) In the capillary pump The driving liquid is added to the entrance of the chamber, and the driving liquid will fill the capillary pump chamber under the capillary force and compress the air in it to generate driving pressure, thereby dividing and pushing the sample or reagent into the microcavity of the micropipe for sampling. The provided micropumps can also be used in combination to realize quantitative micromixing, reaction or cell culture.

The invention relates to a hollow-core microstructure fiber with high damage threshold, which can transmit high-energy and high-power pulse laser. An inner cladding composed of 11 to 15 quartz micro capillaries arranged at intervals is arranged around the inner wall of a quartz glass tube of an outer cladding; the parts of the 11 to 15 quartz micro capillaries, in contact with the inner wall of the quartz glass tube, are fixed on the inner wall of the quartz glass tube in a welding manner; the middle parts of the 11 to 15 quartz micro capillaries, namely the innermost layers, are a fiber core area with low refractive index; and the fiber core area with low refractive index is filled with inert gas or air or vacuum. The hollow-core microstructure fiber has the beneficial effects that the inner cladding is composed of 11 to 15 mutually separated quartz micro capillaries, namely hollow-core microstructure fibers; and light is transmitted in a hollow-core fiber core by using an anti-resonance guide principle in the structure, so that most of the transmitted light energy exists in the fiber core with low refractive index, the damage threshold of the fiber is improved, and the foundation is laid for laser transmission with high energy and high power.

The device for making the micro capillary grooves in the inner wall of heat pipe mainly consists of positioning rod, cutter and pull rod. The positioning rod is mounted on one side surface of the pull rod, and the cutter is mounted on the other side surface of the pull rod. The present invention also relates to the method of making the micro capillary grooves in the inner wall of heat pipe with the said device. The making process features that the pull rod is drawn axially to drive the cutter to broach in the inner wall of the heat pipe base and the inner wall surface of the heat pipe base cracks to form capillary micro grooves. The improved capillary structure makes the heat pipe possess excellent heat transferring performance and lowers the production cost of heat pipe.

A method for fabricating a micro-lens mold comprises forming a thick film on a substrate, patterning the thick film to form a micro-capillary, filling the micro-capillary with a heat curing glue liquor, rotating the substrate so that the liquid in the micro-capillary presents a circular arc shape as a micro-lens because of the surface tension of the material itself and the adhesion of the micro-capillary, and curing and shaping the heat curing glue liquor by the irradiation of a light source or by heating.

The present invention relates to a microscope capillary electrophoresis apparatus. It is mainly formed from capillary electrophoresis system, electrophoresis pattern collection system and image collection system, in which the capillary electrophoresis system includes two liquid bottles, capillary tube and high-voltage power supply, the electrophoresis pattern collection system includes light source and photoelectric converter, and the image collection system includes a microscope light source, a microscope, an image collector and an image display processor.

The invention relates to immunoassays, methods for carrying out immunoassays, immunoassay kits and methods for manufacturing immunoassay kits. In particular, the invention has relevance to capillary (especially microcapillary) immunoassay technology.

The invention provides a regenerating method of an active carbon filter, which comprises the following steps of: (1), discharge of water: controlling a liquid level to be 200-400mm above an active carbon filtering layer; (2), air scrubbing: removing pollutants on surfaces of active carbon particles; (3), backwashing: removing the pollutants on the surfaces of the active carbon particles through backwashing; (4) discharge of water: discharging all water in equipment; (5), drying of active carbons: controlling the temperature between 115 DEG C and 120 DEG C, and blowing pollutant scraps and powdery active carbon out of the active carbon filter; (6), rinsing of the active carbon: rinsing and cleaning the pollutant scraps, dust and the powdery active carbon; and (7), positive rinsing. When the method provided by the invention is adopted, acid and alkaline wastewater is not produced, and the requirement for environment friendliness is met; as dry high-temperature hot air is adopted, water in the active carbon particles can be boiled and evaporated, an inner pressure can be produced, and micro capillary holes of the active carbon can be unblocked and recovered to restore the adsorption function; moreover, the dry high-temperature hot air can be used for killing organic lives and blowing the organic lives out of the equipment to realize complete cleaning.

A backlight module comprises a support provided with a cavity, a light source arranged on the support, a micro capillary structure formed at the surface of the cavity and a fluid arranged in the cavity.

The instant invention provides microcapillary films containing phase change materials. The inventive microcapillary film containing phase change materials according to the present invention has a first end and a second end, and comprises:(a) a matrix comprising a thermoplastic material, (b) at least one or more channels disposed in parallel in said matrix from the first end to the second end of said microcapillary film, wherein said one or more channels are at least 5 [mu]m apart from each other, wherein each said one or more channels have a diameter in the range of at least 5 [mu]m; and (c) at least one or more phase change materials disposed in said one or more channels; wherein said microcapillary film has a thickness in the range of from 10 [mu]m to 2000 [mu]m.

The invention discloses a novel anti-seepage PCCP (Prestressed Concrete Cylinder Pipe) and a production method. The novel anti-seepage PCCP is characterized in that the surface of the novel anti-seepage PCCP is formed by coating a flat, dense and smooth cement slurry anti-seepage protection layer on the surface of the outer layer of a traditional PCCP again. The novel anti-seepage PCCP and the production method, disclosed by the invention have the beneficial effects that the production and processing method is simple and convenient, the surface of the produced novel anti-seepage PCCP is smooth, the density of the protection layer of the surface layer is high, micro capillary channels which are mutually communicated are not formed in an outer mortar protection layer, the waterproof performance is very high, a pipe core of a steel cylinder and a prestressed steel wire can be effectively prevented from being corroded by an external corrosion environment, the service life of a pipeline is prolonged, and an accident caused as the pipeline is corroded can be prevented from happening.

The invention discloses a novel uniformly flowing liquid lithium limiter structure applied to a fusion device, which comprises a collection box, wherein the bottom end of the collection box is provided with double built-in electromagnetic pump, a limiter base is arranged above the collection box, the base of the limiter base is provided with a heating wire and a thermocouple, the outer surface ofthe inner side of the limiter base is clamped with supply pipes connected with liquid lithium, a pump channel is welded between two electrodes in the double built-in electromagnetic pump, the pump channel is communicated with the supply pipes above, the top of the limiter base is provided with a distribution box, and the distribution box is integrally molded and has a structure with uniformly distributed distribution holes. The novel uniformly flowing liquid lithium limiter structure can better achieve supply of the liquid lithium by using a device toroidal field and the additional direct current driving double built-in electromagnetic pump structure, can realize uniform distribution of the liquid lithium through the integrally molded distribution box, and can effectively improve the spreading uniformity of the liquid lithium by using the limiter base with good lamination and a micro-capillary structure perpendicular to the flowing direction of the liquid lithium.

The invention provides an LED explosion-proof lamp. The LED explosion-proof lamp comprises a power source cavity and a light source cavity located on two sides of a micro capillary groove composite phase change cooling heat radiator. In the light source cavity, an LED light source installation extension plate is installed between the surface of the micro capillary groove composite phase change cooling heat radiator and a light source. The lateral surface of the heat radiator is formed by a plurality of vertically arranged heat radiation fins in a surrounding mode, and gaps exist between the heat radiation fins. On the premise of not affecting explosion-proof safety, an explosion-proof structure and the micro capillary groove composite phase change technology heat radiator are combined, the low-efficiency heat radiation method that a traditional explosion-proof lamp only depends on an explosion-proof outer shell for heat radiation is changed, the LED lamp is more widely used in the explosion-proof field, and the lighting effect of the lamp and the reliability of the light source are higher. A power source and the light source are separated by the heat radiator, the heat radiation effect is reinforced, the temperature of the application environment of the power source is lowered, and the reliability and the service life of the power source are better guaranteed.

Polymeric coatings comprising microcapillary structures are applied to a wire or optic fiber using a wire coating apparatus comprising a die (13) assembly comprising a mandrel assembly (16) comprising: (A) a housing (12) comprising: (1) a housing (12) wire tubular channel extending along (a) the length of the housing (12), and (b) the longitudinal centerline axis of the housing (12); (2) a fluid annular channel encircling the wire tubular channel; (3) a fluid ring (28) in fluid communication with the fluid annular channel, the fluid ring (28) positioned at one end of the housing (12); and (B) a cone-shaped tip having a wide end and a narrow end, the wide end of the tip attached to the end of the housing (12) at which the fluid ring (28) is positioned, the tip comprising: (1) a tip wire tubular channel extending along (a) the length of the tip, and (b) the longitudinal centerline axis of the tip; (2) a tip fluid channel (27) in fluid communication with the fluid ring (28); and (3) one or more nozzles (29A) in fluid communication with the tip fluid channel (27), the nozzles (29A) located at the end and extending beyond the narrow end of the tip; the housing (12) wire tubular channel and the tip wire tubular channel in open communication with one another such that a wire can pass from one to the other in a straight line and without interruption.

The invention provides a body moisturizing cream and a preparation method thereof. The preparation method of the body moisturizing cream comprises the following steps: adding the components in the group B into the components in the group A while stirring, mixing fully, adding the components in the group C into the mixture slowly, mixing fully and uniformly, decreasing temperature to 30-50 DEG C, adding the component in the group D, and mixing uniformly to obtain the finished product, wherein the components in the group A comprise beeswax, stearic acid, acetyl alcohol or stearyl alcohol, hydrogenated lanolin, squalane, sorbitan monostearate and glyceryl monostearate, the components in the group B comprise avocado oil, vitamin E, phosphotriester, ascorbyl phosphate and propylparaben, the components in the group C comprise propylene glycol, triethanolamine, sheep heparin and distilled water, and the component in the group D is an essence. The body moisturizing cream provided by the invention can be used for effectively promoting the circulation of blood in capillaries (micro-capillaries) and removing the skin pigments.