Abstract:
An interface is provided for storing microfluidic samples in a nanoliter sample chip (10). A fluid access structure provides a fluid access region to a selected subset (20) of sample wells (12) from an array of sample wells (12). A fluid introduction mechanism introduces a sample fluid to the fluid access region so that the sample wells (12) in the selected subset (20) are populated with the sample fluid without the unselected sample wells being populated with the sample fluid.
Abstract:
The present invention provides methods for simultaneously determining the genetic expression profile an individual member of a species relative to a standard genome for said species, comprising distributing a sample comprising substantially all the genetic material of said member into an array of reaction chambers on a substrate, wherein each chamber has a volume of less than about 1 microliter, and each chamber comprises (1) a primer for a polynucleotide target within said standard genome, and (2) a probe associated with said primer which emits a concentration dependent signal if the primer binds with said target, and the array comprises at least one chamber comprising a primer for each of the polynucleotide target within said standard genome; performing an amplification reaction on the distributed sample in the array so as to increase the concentration of polynucleotides in each of the chambers in which the polynucleotide binds to a primer; and identifying which of the reaction chambers contains a polynucleotide that has been bound to a primer, by detecting the presence of the probe associated with the primer. In one embodiment, the organism is human, and the array comprises primers for 30,000 genomic polynucleotides. In one embodiment, the amplification is PCR.
Abstract:
Chip zur Untersuchung biologischen Materials mit einer Trägereinheit aus porösem Material, an dem die der Detektion der Probenmoleküle dienenden Referenzmoleküle immobilisiert sind.
Abstract:
The invention relates to a new device and method for analyzing the interaction between reagent(s) and solutes or components, wherein said solutes or components diffuse across a matrix immobilizing said reagent(s), said matrix being located in a through hole within said device.
Abstract:
The invention relates to the clinically intelligent design of diagnostic devices (such as microarrays) and methods of making and using such devices in differential diagnoses of specific clinical symptoms or sets of symptoms. In one aspect, the devices include various probes used to perform parallel screening of a number of analytes. The probes are clustered on the devices based on known clinical presentations of symptoms associated with specific diseases and disorders.
Abstract:
Eine im Nanobereich verwendbare Mikrotiterplatte zur gleichzeitigen Durchführung vieler Mikrosynthesen unter erhöhten Temperaturen ist so zu gestalten, dass die einzelnen Mikrokammern der Mikro- bzw. Nanokammermatrix dicht verschließbar sind und das Verschließen vor bzw. das Öffnen der Mikrokammern nach einer Reaktion automatisierbar ist. Die eingefüllten Substanzen befinden sich in oben und unten offenen Kammern, die durch Zwischenwände voneinander getrennt und durch Abdeckungen verschließbar sind. Die Platte ist zumindest im Kammerbereich mehrlagig und dicht gestaltet und die Dicke der Zwischenwände an den Kammeröffnungen ist geringer als im Inneren der Kammern. Zwischen den Bereichen unterschiedlicher Dicke der Zwischenwände bestehen vorspringende Kanten.
Abstract:
Disclosed are systems and methods involved in extreme high throughput screening of compounds which have an affinity for a biological target. The system is based on a capillary bundle with two distinguishable ends wherein capillaries on one end are connected to compounds stored in discrete reservoirs and capillaries on the other end are bound and processed to form a two dimensional microarray. A capillary bundle having reaction wells for hybridization and compound reaction in one end of the capillaries is disclosed. The capillaries may be light-condicting. Also disclosed are various methods of identifying a target compound in a liquid using this capillary bundle as well as methods of fabricating the bundle. A novel surface tension guided reaction chamber is also provided. Methods and chemistry for fabrication and use of a surface tension guided reaction chamber in binding and hybridization assays are also disclosed. Methods and systems for precise metering of fluids within the capillaries and at the reaction chambers, including the surface tension guided "virtual" reaction well is provided. Methods for performing high throughput screens using optical fiber lined capillaries of the invention are also provided. The capillary arrays are used with both liquid probes as well as probes immobilized on the walls of the capillary.
Abstract:
The invention relates to a device used in parallel microsynthesis. Microcompartments that are open on both sides are disposed in a flat arrangement in a microcompartment matrix (4) and are hermetically closed by pressure exerted on both sides by plungers (6) that are covered by a sealing film (11). A layer, produced from elastic material (9) and disposed between the plunger (6) and the sealing film (11), ensures that a continuous pressure is exerted on all microcompartments of the microcompartment matrix (4) that is loosely retained by a frame structure (1). Elevations (2) that project in both directions vertically to the plane of the microcompartment matrix (4) prevent the deformable thin layer from elastic material (9) from escaping laterally between the plunger (6) and the microcompartment matrix (4) while pressure is exerted. A plurality of microcompartment matrices (4) are simultaneously retained by the frame structure (1) and are hermetically closed by a corresponding number of associated plungers (6) that are fastened on a base plate (7) or a cover plate (8).
Abstract:
Provided are methods of screening and identification of bioactivities and bioactive molecules of interest using a capillary array system. More specifically, disclosed are methods of using optical detection and capillary array-based techniques for screening libraries and recovering bioactive molecules having a desired activity or a nucleic acid sequence encoding such bioactive molecules.
Abstract:
A surface of the pore (P) is provided with a coating for reflecting electromagnetic radiation. Said coating comprises one or more overlapping layers (A1, B1). If the substrate (1) consists of silicon, said layers (A1,l B1) are preferably made of materials which can be deposited in the course of CVD-processes. Said layers (A1, B1) are, for example, comprised of SiO2, polysilicon, silicon nitride or tungsten. The substrate (1) is, for example, provided as a component of a biochip used to detect fluorescing molecules (M) applied to the surface of pores (P)provided with said coating. The substrate (1) can be part of a fiber-optic light guide. Said coating is preferably constructed in such a way that electromagnetic radiation having a wavelength between 400 nm and 700 nm is optimally reflected.