摘要:
A device for performing biological analysis may include at least one reaction chamber configured to receive at least one sample for biological analysis and a thermal system configured to modulate a temperature of the at least one reaction chamber to cycle a temperature of the at least one biological sample. The thermal system may include a cooling system configured to cool the at least one reaction chamber. The cooling system may include a cooling fluid source positioned distally from the at least one reaction chamber, the cooling fluid source being in flow communication with at least one conduit configured to flow cooling fluid from the cooling fluid source to at least one location in thermal communication with the at least one reaction chamber.
摘要:
A method for stabilizing the temperature of an LED is provided. A method is provided that includes providing a system comprising an LED, a reaction region, and a sample in the reaction region; generating excitation beams with the LED; directing excitation beams to the sample; detecting an optical property of the sample to obtain detection data; measuring the operating temperature of the light emitting diode; and adjusting the detection data of an excitation beam characteristic shift related to the operating temperature, when the LED is operated at the operating temperature to generate the excitation beams.
摘要:
An optical scanner has grease bearings between the rotor and the housing. The grease bearings are grooved which tends to pump the grease back into the bearing cups when the optical scanner is operating. The thixotropic property of the grease prevents its escape from the bearing cups when the optical scanner is not operating. The grease bearings can be frusto-conical or spherical in shape with complementary shaped bearing cups. The bearing cups, rather than the bearings, may be grooved. The bearing cups may also be stepped to provide a pumping region and a reservoir region for the grease. Pressure means within the scanner housing may force the bearing cups onto the grease bearing.
摘要:
The present teachings relate to methods, compositions, and kits for detecting one or more target polynucleotide sequences in a sample, and methods compositions and kits for forming concatameric ligation products. In some embodiments of the present teachings, oligonucleotides are hybridized to complementary target polynucleotides and are ligated together to form a concatameric ligation product. In some embodiments of the present teachings, the concatameric ligation product can be amplified, and the identity and quantity of the target polynucleotides determined based on sequence introduced in the ligation reaction. Some embodiments of the present teachings provide methods for removing unligated probes from the reaction mixture. Some embodiments of the present teachings provide for highly multiplexed detection, identification, and quantification of a plurality of target polynucleotides using a variety of analytical procedures.
摘要:
The present teachings relate to methods, compositions, and kits for detecting one or more target polynucleotide sequences in a sample, and methods compositions and kits for forming concatameric ligation products. In some embodiments of the present teachings, oligonucleotides are hybridized to complementary target polynucleotides and are ligated together to form a concatameric ligation product. In some embodiments of the present teachings, the concatameric ligation product can be amplified, and the identity and quantity of the target polynucleotides determined based on sequence introduced in the ligation reaction. Some embodiments of the present teachings provide methods for removing unligated probes from the reaction mixture. Some embodiments of the present teachings provide for highly multiplexed detection, identification, and quantification of a plurality of target polynucleotides using a variety of analytical procedures.
摘要:
A system is provided that includes a light-emitting diode (LED); a temperature sensor in thermal contact with the LED and capable of measuring an operating temperature and generating an operating temperature signal; and a temperature regulating system capable of receiving the operating temperature signal and regulating the operating temperature based on the operating temperature signal. A method for stabilizing the temperature of an LED is provided. A method is provided that includes providing a system comprising an LED, a reaction region, and a sample in the reaction region; generating excitation beams with the LED; directing excitation beams to the sample; detecting an optical property of the sample to obtain detection data; measuring the operating temperature of the light emitting diode; and adjusting the detection data of an excitation beam characteristic shift related to the operating temperature, when the LED is operated at the operating temperature to generate the excitation beams.
摘要:
There is disclosed a method of reducing banding problem in multi-diode raster scanning systems. In this invention a test mode is provided for measuring and adjusting the output power of the laser diodes. During the test mode an individual patch is used for the light beam of each diode to individually measure and adjust the output power of each laser diode. By individually adjusting the output power of each laser diode to a required level, the banding problem is substantially reduced.
摘要:
There is disclosed a raster output scanner for a color printing system which utilizes an indexed rotating polygon mirror in order to scan each given scan line from each latent image by a given facet in order to reduce misregistration caused by facet surfaces of a rotating polygon mirror.
摘要:
A raster scanner system is disclosed which utilizes a pair of binary diffraction optic lenses to correct non-uniformity of the flux of a light beam received by a facet of a rotating polygon. Since the facet is rotating and the direction of the light is constant, the amount of the light (flux) which the facet receives in each position from the start of scan to the end of scan and in any position therebetween is different. Also, the light beam striking the rotating facet has a Gaussian distribution which is a contributor to the non-uniformity of the flux over one scan line. The binary diffraction optic lenses of this invention reprofiles the Gaussian distribution into a profile in which the intensity of the light beam gradually increases as the facet rotates to provide a uniform flux for the entire scan line.
摘要:
A method provides flow to multiple channels in an endoscope during an endoscope decontamination procedure. A member is inserted into a chamber in a body of an endoscope through an opening into the chamber, the chamber being intersected by a first lumen and a second lumen. The member separates fluidly the first lumen from the second lumen. Fluid is flowed through a first channel through the member into the first lumen and through a second channel through the member into the second lumen. Additional lumens can be so treated at the same time. Fluids can include detergents and other cleaning fluids, disinfectants and sterilants.