摘要:
An apparatus for changing relative concentrations of first and second analyte substances in an analyte sample comprises a sample cell defining a sample chamber therewithin, and a semipermeable boundary member disposed in the sample chamber to define first and second sides of the sample chamber. Sample flow input and sample flow output ducts direct an analyte sample containing respective initial concentrations of the first and second analyte substances into the first side of the sample chamber. The semipermeable boundary member permits diffusion therethrough of the first and second analyte substances to the second side of the sample chamber at different rates. An analyte sample in the second side of the sample chamber, and an analyte sample exiting the first side via the sample flow output duct, have respective concentrations of the first and second analyte substances that are different from the initial concentrations.
摘要:
Methods and sub-systems for substantially optimizing the absorbance measurement in optical instruments are provided. A method comprises forming a liquid sample into a droplet extending between two opposing surfaces, passing a light beam through the sample, and varying the distance between the two opposing surfaces until a distance substantially corresponding to a optimum absorbance is obtained.
摘要:
Aspects of the invention include plasma generating devices and systems thereof, as well as methods of using the same in plasma generation. Embodiments of the plasma generating devices include a resonator having a discharge gap and a ground plane disposed on opposing sides of a substrate; and a gas flow element configured to flow gas through the discharge gap. In using the plasma generating devices, a gas is flowed through the discharge gap and sufficient power is applied to the resonator to produce a plasma, e.g., in the form of a plasma jet, at the discharge gap. The subject devices and methods find use in a variety of different applications.
摘要:
Nanopore analysis systems, methods of preparing nanopore analysis systems, and methods of automating the analysis of samples using nanopore analysis systems, are provided.
摘要:
The present invention includes a heat sealable capsule adapted for use in analysis devices such as GCs, and methods for using the capsules to perform analysis in such devices. The capsules include a tube having an end that is heat-sealed to contain a sample that is to be analyzed at an injection temperature. The tube includes a heat sealable medium having a heat seal that closes the end, the tube having an inner and outer surface, both of the surfaces being substantially chemically inert with respect to the sample. The tube is substantially free of any material that outgases at the injection temperature. The tube is openable without breaking into pieces, and remains intact at the injection temperature. The capsule can include a programmable tag that stores information related to the sample contained therein.
摘要:
A method of testing multiple fluid samples with multiple biopolymer arrays. A cover is assembled to a contiguous substrate carrying on a first side, multiple arrays each with multiple regions of biopolymers linked to the substrate, such that the cover and the substrate together form a plurality of chambers each containing a biopolymer array and each being accessible through its own port. Multiple fluid samples are introduced into respective chambers through a port of each such that the fluid samples contact respective arrays. A binding pattern of the arrays is observed. An apparatus and kit useful in such methods, are also provided.
摘要:
Aspects of the invention include systems for producing microarray assay devices. Further aspects of the invention include assembled microarray assay devices, as well as methods of assembling the devices and methods of using the assembled devices.
摘要:
A method of testing multiple fluid samples with multiple biopolymer arrays. A cover is assembled to a contiguous substrate carrying on a first side, multiple arrays each with multiple regions of biopolymers linked to the substrate, such that the cover and the substrate together form a plurality of chambers each containing a biopolymer array and each being accessible through its own port. Multiple fluid samples are introduced into respective chambers through a port of each such that the fluid samples contact respective arrays. A binding pattern of the arrays is observed. An apparatus and kit useful in such methods, are also provided.
摘要:
Apparatus for contacting an array substrate with a fluid and novel methods for washing an array substrate are disclosed. In an embodiment, the apparatus includes a housing defining a wash chamber, a fluid inlet in fluid communication with the wash chamber, a drain in fluid communication with the wash chamber, a gas inlet adapted to direct a stream of gas over a surface of the array substrate, and a program controller in operable relation to the wash chamber, the program controller operable to perform a washing protocol which includes automatically filling the wash chamber with said fluid. A method as described includes placing the array substrate in a wash chamber, triggering a first drain and fill step, automatically performing a second drain and fill step, and automatically performing a slow drain step.
摘要:
MALDI sample holders and methods of using and making the same are provided. The MALDI sample holders are configured for use in matrix assisted laser desorption/ionization and include a planar substrate having a surface and at least one fluid retaining structure present on the surface. The fluid retaining structure includes a material that changes from a first fluid state to a second solid state in response to a stimulus. Also provided are methods of using the subject MALDI sample holders in a matrix-assisted laser desorption/ionization protocol, as well as methods of producing the subject MALDI sample holders. Kits for use in practicing the subject methods are also provided.