Abstract:
Devices and methods for performing assays on materials, particularly biological materials, are provided. The devices and methods make use of self-sealing members, which can be applied to a flat surface to form wells to facilitate immobilization of materials on the flat surface, then removed to yield a flat surface that facilitates the performance of processes on and/or detection of the immobilized material.
Abstract:
A multiple level micro-array system for integrating micro-arrays of biomolecules, including biological, chemical and biochemical elements. The multiple level micro-arrays are formed using soft lithography techniques and elastomeric membranes to shield or pattern various portions of a suitable substrate with biomolecules. Additional levels are formed using membranes with various through holes which either isolate, stratify or shield the patterned biomolecules from subsequent patterning or addition of an assay solution.
Abstract:
The present invention is directed to a mattress measurement tool (100). The mattress measurement tool (100) comprises mattress-engaging pads (110A, 110B), where the mattress-engaging pads (110A, 110B) are located at each free end of the substantially horizontal cross-member (108). The mattress measurement tool (100) further comprises a distance measuring device (118) for measuring a conformity characteristic of the mattress. The mattress measurement tool (100) is capable of measuring support, conformity and rebound of the mattress.
Abstract:
The present invention provides an article for immobilizing functional organic biomolecules through a covalent bond to a thiolate monolayer on a coinage metal surface. Also provided are methods for making the article and method for the immobilization of functional organic biomolecules on the article. The thiolate monolayer contains two moieties, one having an inert group that is resistant to reacting with biomolecules and one having a covalent bond forming group that reacts with the functional organic biomolecule to covalently immobilize it on the monolayer.
Abstract:
A system is provided for positioning separate portions of a sample in elongate, parallel channels of a sample chamber and for irradiating a sample in the chamber to create a diffraction pattern where the sample and chamber differ in refractive index. The system also can measure absorption of electromagnetic radiation by a sample in the chamber, and can measure the absorption simultaneously with measurement of diffraction by the sample.
Abstract:
Devices and methods for performing assays on materials, particularly biological materials, are provided. The devices and methods make use of self-sealing members, which can be applied to a flat surface to form wells to facilitate immobilization of materials on the flat surface, then removed to yield a flat surface that facilitates the performance of processes on and/or detection of the immobilized material.
Abstract:
Devices and methods for performing assays on materials, particularly biological materials, are provided. The devices and methods make use of self-sealing members, which can be applied to a flat surface to form wells to facilitate immobilization of materials on the flat surface, then removed to yield a flat surface that facilitates thc performance of processes on and/or detection of the immobilized material.
Abstract:
The present invention provides a masking system for selectively applying cells to predetermined regions of a surface. A mask is positioned adjacent to a surface to cover some portions of the surface while allowing other portions of the surface to remain uncovered. Cells then are applied to uncovered portions of the surface and the mask removed. Alternatively, a cell-adhesion promoter is applied to uncovered portions of the surface, and then cells are applied to the surface before or after removal of the mask from the surface. The masking system can be pre-coated, at least on those surfaces which will come into contact with cells, with a cell-adhesion inhibitor to resist absorption of cells and thereby avoid cell damage when the mask is removed (if cells are deposited prior to removal of the mask). A polymeric elastomeric mask that comes into cohesive-conformal contact with a surface to be patterned can be used.
Abstract:
Devices and methods for performing assays on materials, particularly biological materials, are provided. The devices and methods make use of self-sealing members, which can be applied to a flat surface to form wells to facilitate immobilization of materials on the flat surface, then removed to yield a flat surface that facilitates the performance of processes on and/or detection of the immobilized material.
Abstract:
Devices and methods for performing assays on materials, particularly biological materials, are provided. The devices and methods make use of self-sealing members, which can be applied to a flat surface to form wells to facilitate immobilization of materials on the flat surface, then removed to yield a flat surface that facilitates the performance of processes on and/or detection of the immobilized material.