42 results about "Micro technology" patented technology

The present invention provides a device and a method for separating particles from fluids using ultrasound, laminar flow, and stationary wave effects comprisinga micro-technology channel system with an integrated branching point or branching fork, and a single ultrasound source. One of the characteristics of the invention is that the single ultrasound source, which generates the standing waves, excites the complete structure including the channel system. No special reflectors or the like are needed. Extremely thin dividers can separate the flow, thereby enhancing the effectiveness of the device. The device could be manufactured in silicon and the ultrasound energy could preferably be delivered by a piezoelectric element.

The invention belongs to the technical field of microscopicspectral imaging detection, and relates to a split pupil laser differential confocal Raman spectrum test method and device. According to the test method and device, a split pupil laser differential confocal microtechnique and a laser Raman spectrum detection technique are organically combined, precise imaging of three-dimensional geometrical positions is realized through segmentation focal spot differential detection, the optical path structure of a traditional differential confocal microscopic system is simplified, advantages of an original laser differential confocal system and a split pupil confocal system are inherited, and multi-mode switching and processing of split pupil laser differential confocal microscopic detection, laser confocal Raman spectrum detection and laser differential confocal Raman spectrum detection can be realized only through softwareswitching processing. The test method and device provide a new technological approach for detection ofnanoscale microcell three-dimensional geometrical positions and spectrum, can be applied to fields of biomedicine, industrial precision detection and the like, and has the broad application prospect.

This invention deals with novel method and apparatus for positioning and motion control of the elements (lenses) of a Fresnel lens solar concentrator tracking array by induced and / or permanent dipole coupling to an electronic grid to produce angular deflection, and rotational motion. Thus forces and torques are produced without the use of internal moving parts. Control can be achieved without recourse to magnetic fields, by means of high electric fields which may be attained at relatively low voltages. At low voltages, the instant invention exceeds the capability of conventional systems. It can perform dynamic motion control with independent amplitude and frequency modulation. It is ideally suited for maximization of solar energy focused by the array onto a receiver. Since there are no mechanical likages, the instant invention is the most adapted for fabrication from the mini- to the micro-technology realm. Furthermore it provides less costly and greater ease of manufacture from the mini-to the micro-realm.

The invention provides nucleic acid structures of controlled size and shape, comprised of a plurality of oligonucleotides, and methods for their synthesis. The structures are formed, at least in part, by the self-assembly of single stranded oligonucleotides. The location of each oligonucleotide in the resultant structure is known. Accordingly, the structures may be modified with specificity.

A mass magnifier is created by combining the properties of permanent magnets or electromagnets with the property of mu-metal to create a novel energy storage device. In a system mu-metal is placed in the magnetic field created by a magnet or electromagnetic in a manner to provide an energy storage device, similar to a fly wheel. The system includes a set of magnets arranged in a circle around a cylinder in a stationary position, effectively forming a stator. Another set of opposing magnets are arranged to form a rotor. When the rotor is rotated, mu-metal material is inserted between the rotor and stator magnets in a manner so that the rotor will remain in motion in a desired rotation direction, even if an opposing force is applied to the rotor axle. The system, thus, forms an energy storage device similar to a fly wheel. The system can also provide energy storage for conventional machines or for smaller micro-technology or nano-technology type devices.

A sensitized, photo-structurable glasses and methods for producing are provided. The glasses includes Si4+, one or more crystal-agonist, one or more crystal-antagonist, and one or more pair of nucleating agents. The glasses are sensitized in that the glass reacts more sensitive to irradiation with UV-light and can be crystallized easier and with higher aspect ratios than a non-sensitized glass with equal composition. Furthermore, the sensitized glasses of this invention have smaller crystal sizes after irradiation and tempering than a non-sensitized glass with equal composition. The invention also relates to a structured glass product. Such product can be obtained by submitting the crystallized glass product to a subsequent etching step. The structured product can be used in components or as component for the application fields micro-technology, micro-reaction-technology, electronic packaging, micro-fluidics, FED spacer, bio-technology, interposer, and / or three-dimensional structured antennae.

The invention is an automatic rotating polarization tunnel atom force micro technology, which belongs to ultrahigh resolution magnetism sensitive imaging technology field. It uses conductive elastic micro suspending arm with magnetic pin, one end of the suspending arm is connected to the control system, another end is the magnetic pin, the control system controls the probe to approach the sample, the pin atom and the sample surface atom generate the atom force to bend the suspending arm, the laser radiates on the suspending arm surface and then reflected to the detector, and it is feed back to the control system, the three-dimension image of the sample surface can be acquired through recording the position coordinate x, y, and z of the probe in scanning process. A constant polarization is added on the sample, measures the current change in the total tunnel, records the plane position coordinate (x, y) and the correspondent total tunnel current value, and acquires the sample magnetism sensitivity information imaging.

The invention relates to a process for fabricating a hydrogenated amorphous silicon carbide film having through-pores, which comprises:a) the formation on a substrate of a film consisting of an amorphous hydrogenated silicon carbide matrix in which silicon oxide through-nanowires are dispersed; and thenb) the selective destruction by a chemical agent of the silicon oxide nanowires present in the film formed at step a).Applications: microelectronics and micro-technology, in all fabrication processes that involve the degradation of a sacrificial material by diffusion of a chemical agent through a film permeable to this agent for the production of air gaps, in particular the fabrication of air-gap interconnects for integrated circuits.

The invention discloses a probe type high-accuracy force sensor based on a quartz resonator. The force sensor comprises a probe, wherein the probe is connected with the input end of a second-order enlargement beam; the second-order enlargement beam is connected with a silicon substrate frame through four supporting point beams; the output end of the second-order enlargement beam is fixedly connected with one end of a quartz tuning fork beam by organic adhesive; the quartz tuning fork beam is positioned in the hollow rectangle of the silicon substrate frame; the other end of the quartz tuning fork beam is fixed on the silicon substrate frame through organic adhesive; the silicon substrate frame is sputtered with a metal electrode; and the metal electrode and the electrode of the quartz tuning fork beam are connected by a gold wire. When a force function is in the presence in a probe sensitivity direction, force amplified by the second-order enlargement beam acts on the quartz tuning fork beam, and the quartz tuning fork beam causes that resonant frequency changes under the function of axial force. The vibrated quartz tuning fork beam is connected into a detection circuit to detect frequency change so as to realize force measurement. Through a way of combining a silicon micro-technology and a quartz processing technology, the force sensor has the advantages of simple structure, frequency output, small volume and high accuracy.

A sensitized, photo-structurable glasses and methods for producing are provided. The glasses includes Si4+, one or more crystal-agonist, one or more crystal-antagonist, and one or more pair of nucleating agents. The glasses are sensitized in that the glass reacts more sensitive to irradiation with UV-light and can be crystallized easier and with higher aspect ratios than a non-sensitized glass with equal composition. Furthermore, the sensitized glasses of this invention have smaller crystal sizes after irradiation and tempering than a non-sensitized glass with equal composition. The invention also relates to a structured glass product. Such product can be obtained by submitting the crystallized glass product to a subsequent etching step. The structured product can be used in components or as component for the application fields micro-technology, micro-reaction-technology, electronic packaging, micro-fluidics, FED spacer, bio-technology, interposer, and / or three-dimensional structured antennae.

A method for continuous production of photo-sensitive glass bodies, glass bodies, and structured glass articles are provided. The glass bodies include a glass having Si4+, at least one crystal-agonist, at least one crystal-antagonist, and at least one pair of nucleating agents. The glass may be used in a method for structuring of glass. The glass bodies may be structured and / or unstructured and used in different applications such as in components or as components in micro-technology, in micro-reaction-technology, in electronic packaging, for micro-fluidic components, in or as FED spacer, for bio-technology (for example titer plates), as interposer, and in or as three-dimensional structurable antennae.

The invention relates to a process for producing at least one air gap in a microstructure, which comprises:a) the supply of a microstructure comprising at least one gap filled with a sacrificial material, this gap being limited over at least part of its surface by an impermeable membrane but which may be rendered permeable by the action of a chemical etchant, this etchant also being capable of degrading the sacrificial material;b) the contacting of the microstructure with said chemical etchant in order to make the membrane permeable and degrade the sacrificial material; andc) the removal of the chemical etchant from the microstructure; and in which the chemical etchant is a fluid containing hydrofluoric acid and / or ammonium fluoride.Applications: Microelectronics and micro-technology.

A method for manipulating the laser tweezers of metallic micro-particles features that a 2D scanning polarizer system is used to control the circular scanning of laser beam around metallic micro-particles, and the action force of laser beam to each metallic micro-particle points to the curvature center of scanning trace, so gathering the metallic micro-particles in the center. Its apparatus is composed of laser device, focusing lens, 2D moving platform, microscopic observing system, and 2D scanning polarizer system.

The invention belongs to the technical field of fluorescent probe synthesis. In order to solve the problems of high detection limit and poor photostability of existing fluorescent probes, a method for detecting CN is provided. ‑ An enhanced fluorescent probe and its preparation method and biological application, the fluorescent probe is 1-(pyrene-1-yl)-3-(N-ethylcarbazole-3-yl) acrylone, the preparation method: 1-acetylpyrene and N-ethylcarbazole-3-formaldehyde were dissolved in absolute ethanol, then sodium hydroxide was added, stirring was continued at room temperature for 4 hours, a yellow solid was precipitated, and the reaction was tracked by TLC; Water ethanol and water 1 / 1 v / v washing, vacuum drying to obtain yellow powder. The fluorescent probe for cyanide (CN ‑ ) detection is enhanced, and the response is rapid, the selectivity and sensitivity are high, and it can be used for the detection of cyanide in organisms by combining laser confocal scanning microscopy technology.

The invention discloses a Raman super-resolution microimaging system based on structured light illumination and an imaging method and solves the technical problems in the prior art that the structuredlight super-resolution fluorescence microscopy relies on a fluorescent marker and thus has poor specificity, fluorescence bleaching and light injury often happen after long-time observation of the sample, and the Raman super-resolution microimaging technology is implemented based on a near field scanning way and thus has relatively low stability and cannot perform panoramic fast imaging of the sample. The imaging system disclosed by the invention comprises a structured light generation device, a Raman signal excitation device and a one-time Raman imaging device. Through combination of the structured light super-resolution fluorescence microscopy and the Raman super-resolution microimaging technology, the imaging system realizes non-marked, panoramic and fast super-resolution imaging, andcan be applied to the research directions such as cell membranes, artificial phospholipid membranes, artificial nano pores, endocytosis / transfer single molecule and particle system, mechanism of virusentering cells, dynamic process of molecules in living cell, interaction of nano cells and biological effect.

The invention is an automatic rotating polarization tunnel atom force micro technology, which belongs to ultrahigh resolution magnetism sensitive imaging technology field. It uses conductive elastic micro suspending arm with magnetic pin, one end of the suspending arm is connected to the control system, another end is the magnetic pin, the control system controls the probe to approach the sample, the pin atom and the sample surface atom generate the atom force to bend the suspending arm, the laser radiates on the suspending arm surface and then reflected to the detector, and it is feed back to the control system, the three-dimension image of the sample surface can be acquired through recording the position coordinate x, y, and z of the probe in scanning process. A constant polarization is added on the sample, measures the current change in the total tunnel, records the plane position coordinate (x, y) and the correspondent total tunnel current value, and acquires the sample magnetism sensitivity information imaging.

The invention relates to a rotary driving device, which comprises a linear micro-displacement mechanism and an angular displacement conversion mechanism; the angular displacement conversion mechanism includes a moving plate, a push plate, a slide plate and a rolling body; the moving plate is connected to the linear micro-displacement mechanism , can move linearly along the X direction under the drive of the linear micro-displacement mechanism; the push plate is fixed on the moving plate; the sliding plate is installed on the moving plate, movably connected with the moving plate, and can move along the Y direction relative to the moving plate; The rolling body is clamped by the push plate and the slide plate, suspended on the moving plate, and the rolling body is movably connected with the rotating body. Since the technology of the linear micro-displacement mechanism is very mature, the precision can reach 0.1 μm or even higher, so the present invention adopts the method of converting the linear micro-displacement into the rotational angular displacement to drive the rotating body to rotate, and the angular positioning accuracy is high.