Integrated systems for the multiplexed amplification and detection of six and greater dye labeled fragments
First Claim
1. An optical detector comprising;
- one or more light sources positioned for illuminating one or a plurality of detection positions on a substrate, said substrate comprising a thermal cycling chamber adapted for multiplexed amplification in one PCR reaction, such that primers labeled with 6 or more fluorescent dyes each having a unique peak emission wavelength are used to generate amplified nucleic acid fragments labeled with said 6 or more fluorescent dyes, said thermal cycling chamber in fluid communication with at least one channel on said substrate, wherein each channel comprises a detection position;
a mirror to scan said one or more light sources sequentially between detection positions;
one or a plurality of first optical elements positioned for collecting and directing light emanating from the detection positions on the substrate; and
a light detector positioned to accept light directed from the one or plurality of first optical elements, wherein the light detector comprises a wavelength dispersive element to disperse the light from the one or plurality of first optical elements according to light wavelength into at least 6 wavelength components and, the wavelength dispersive element is positioned to provide at least a portion of the dispersed at least 6 wavelength components to at least 6 detection elements, whereineach of the detection elements are in communication with a first control element for simultaneously collecting detection information from each of the detection elements and, wherein said light detector detects fluorescence from at least 6 dyes labeled to one or more biological molecules, each dye having a unique peak emission wavelength.
4 Assignments
0 Petitions
Accused Products
Abstract
The present disclosure provides fully integrated microfluidic systems to perform nucleic acid analysis. These processes include sample collection, nucleic acid extraction and purification, amplification, sequencing, and separation and detection. The present disclosure also provides optical detection systems and methods for separation and detection of biological molecules. In particular, the various aspects of the invention enable the simultaneous separation and detection of a plurality of biological molecules, typically fluorescent dye-labeled nucleic acids, within one or a plurality of microfluidic chambers or channels. The nucleic acids can be labeled with at least 6 dyes, each having a unique peak emission wavelength. The present systems and methods are particularly useful for DNA fragment sizing applications such as human identification by genetic fingerprinting and DNA sequencing applications such as clinical diagnostics.
-
Citations
13 Claims
-
1. An optical detector comprising;
-
one or more light sources positioned for illuminating one or a plurality of detection positions on a substrate, said substrate comprising a thermal cycling chamber adapted for multiplexed amplification in one PCR reaction, such that primers labeled with 6 or more fluorescent dyes each having a unique peak emission wavelength are used to generate amplified nucleic acid fragments labeled with said 6 or more fluorescent dyes, said thermal cycling chamber in fluid communication with at least one channel on said substrate, wherein each channel comprises a detection position; a mirror to scan said one or more light sources sequentially between detection positions; one or a plurality of first optical elements positioned for collecting and directing light emanating from the detection positions on the substrate; and a light detector positioned to accept light directed from the one or plurality of first optical elements, wherein the light detector comprises a wavelength dispersive element to disperse the light from the one or plurality of first optical elements according to light wavelength into at least 6 wavelength components and, the wavelength dispersive element is positioned to provide at least a portion of the dispersed at least 6 wavelength components to at least 6 detection elements, wherein each of the detection elements are in communication with a first control element for simultaneously collecting detection information from each of the detection elements and, wherein said light detector detects fluorescence from at least 6 dyes labeled to one or more biological molecules, each dye having a unique peak emission wavelength. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
-
Specification