摘要:
The disclosed spotting instrument includes one or more sensors that are mechanically fixed to the instrument's printhead. The sensors enable the instrument to detect whether a substrate is mounted in a particular holder of the instrument's substrate station prior to attempting to print spots onto that substrate. Similarly, the sensors enable the instrument to detect whether a reservoir is mounted in a particular holder of the instrument's well station prior to attempting to collect a sample of target material from that reservoir. The sensors also enable the instrument to read bar code labels affixed to substrates or reservoirs mounted in the instrument.
摘要:
The disclosed spotting instrument includes one or more sensors that are mechanically fixed to the instrument's printhead. The sensors enable the instrument to detect whether a substrate is mounted in a particular holder of the instrument's substrate station prior to attempting to print spots onto that substrate. Similarly, the sensors enable the instrument to detect whether a reservoir is mounted in a particular holder of the instrument's well station prior to attempting to collect a sample of target material from that reservoir. The sensors also enable the instrument to read bar code labels affixed to substrates or reservoirs mounted in the instrument.
摘要:
The invention provides an apparatus for interrogating an optical biosensor. The apparatus includes (a) locating means for positioning one or more optical biosensors; (b) calibration means for generating a reference measurement; (c) one or more biosensors for generating one or more sample measurements, the biosensors being substantially planar and removable from the apparatus; (d) a reading means for interrogating biosensor and calibration means, and (e) a transport means for moving one or more of a biosensor, the calibration means and the reading means, whereby the reading means is positioned to interrogate the biosensor and the calibration means.
摘要:
The disclosed pin-lifter can selectively lift pins partially out of a printhead of a spotting instrument and thereby prevent the lifted pins from contacting the substrate during any printing. Methods of using pin-lifters to increase the rate of production of compact microarrays are disclosed.
摘要:
A method and apparatus are provided for washing and drying pins in a microarray spotting instrument. The apparatus includes an array of chambers, each for receiving one of the pins of the spotting instrument. To wash the pins, streams of wash fluid are directed at the pins. To dry the pins, a gas such as air is flowed over pin surfaces.
摘要:
Methods and systems are disclosed that include an optical device for providing information about one or more samples. The system includes well(s) for holding the sample(s), and in one embodiment, the optical device(s) have non-parallel sidewalls optically contacting the well(s) for providing the information about the sample(s) in the well(s). In some embodiments the optical devices may be truncated prism(s). In some embodiments the optical devices are part of a unibody structure with the well(s).
摘要:
A dynamically resonant system including a linearly movable element having a neutral position and a range of excursion centered on the neutral position, a spring-like element for urging the movable element toward the neutral position, the resonant system having a natural resonant frequency dependent on the spring characteristics of the spring-like element, the spring-like element having a temperature sensitive member that causes the spring characteristics to vary with temperature of the member.
摘要:
Encoded bead multiplex assays for chromosomal gains and losses are provided that provide the benefits of complex, large template DNA sources, such as BAC DNA, as the probe material without bead networking or other assay performance problems. Reagents for assaying DNA are described herein which include a plurality of encoded particles having attached amplicons amplified from a template DNA sequence. Each individual attached amplicon includes a nucleic acid sequence identical to a random portion of the template DNA sequence, wherein the amplicons together represent substantially the entire template DNA and wherein the nucleic acid sequence identical to a random portion of the template DNA sequence of each individual amplicon is shorter than the entire template DNA.
摘要:
Encoded bead multiplex assays for chromosomal gains and losses are provided that provide the benefits of complex, large template DNA sources, such as BAC DNA, as the probe material without bead networking or other assay performance problems. Reagents for assaying DNA are described herein which include a plurality of encoded particles having attached amplicons amplified from a template DNA sequence. Each individual attached amplicon includes a nucleic acid sequence identical to a random portion of the template DNA sequence, wherein the amplicons together represent substantially the entire template DNA and wherein the nucleic acid sequence identical to a random portion of the template DNA sequence of each individual amplicon is shorter than the entire template DNA.
摘要:
Encoded bead multiplex assays for chromosomal gains and losses are provided that provide the benefits of complex, large template DNA sources, such as BAC DNA, as the probe material without bead networking or other assay performance problems. Reagents for assaying DNA are described herein which include a plurality of encoded particles having attached amplicons amplified from a template DNA sequence. Each individual attached amplicon includes a nucleic acid sequence identical to a random portion of the template DNA sequence, wherein the amplicons together represent substantially the entire template DNA and wherein the nucleic acid sequence identical to a random portion of the template DNA sequence of each individual amplicon is shorter than the entire template DNA.