Abstract: System and method for fluorescent light excitation and detection from samples to enhance the numerical aperture and/or reduce the cross-talk of the fluorescent light.
Abstract: Microfluidic devices, assemblies, and systems are provided, as are methods of manipulating micro-sized samples of fluids. Microfluidic devices having a plurality of specialized processing features are also provided.
Type:
Grant
Filed:
August 4, 2010
Date of Patent:
January 7, 2014
Assignee:
Applied Biosystems, LLC
Inventors:
Sean M. Desmond, Zbigniew T. Bryning, John Shigeura, Gary Lim, Adrian Fawcett, Jacob K. Freudenthal, Gary Bordenkircher
Abstract: Polypeptides labelled with a donor and acceptor pair of dyes selected from a dibenzorhodamine dye and a diamino-benzophenoxazine dye are peptide conjugates which are useful for intracellular and bead-based assays with fluorescence detection. Peptide conjugates with a caspase-recognition site undergo cleavage into peptide fragments which may be detected, located, and quantitated by the changes in fluorescence. Intracellular cleavage of peptide conjugates is correlated with apoptosis.
Abstract: An apparatus for detecting labeled beads is provided. The apparatus can include: one or more irradiation sources disposed for irradiating the one or more detection zones with radiation; at least one detector disposed for collecting charges corresponding to light signals emitted from labeled beads in the one or more detection zones, which have been excited by the radiation; and a system coupled to the at least one detector for effecting time delay integration of the charges by accumulating the charges before reading the charges at the output of the at least one detector.
Type:
Grant
Filed:
September 14, 2012
Date of Patent:
January 7, 2014
Assignee:
Applied Biosystems, LLC
Inventors:
Mark Oldham, Eric Norman, Richard Reel, Janice Shigeura
Abstract: Fluorescent polymeric materials are disclosed comprising a polymeric particle and one or more lipid soluble rhodamine dyes, comprising the following core structure: wherein R11 and R15 are each H or are each F or Cl; R12, R13, and R14 are each H or are each F or Cl; and wherein at least one of R3?, R3?, R6? and R6? is a (C4-C20) alkyl. The materials are especially useful in the preparation of multicolored microparticles, especially multicolored polystyrene microparticle, for use in the multiplexed analysis of a plurality of analytes in a single sample. When excited by a light source, the materials give off a unique emission based on the nature, concentration and ratio of the dyes therein. Methods of preparing and using said materials are also disclosed.
Type:
Grant
Filed:
February 14, 2011
Date of Patent:
December 31, 2013
Assignee:
Applied Biosystems, LLC
Inventors:
Joe Y. L. Lam, Steven M. Menchen, Ruiming Zou, Scott C. Benson
Abstract: Novel energy transfer dyes which can be used with shorter wavelength light sources are provided. These dyes include a donor dye with an absorption maxima at a wavelength between about 250 to 450 nm and an acceptor dye which is capable of absorbing energy emitted from the donor dye. One of the energy transfer dyes has a donor dye which is a member of a class of dyes having a coumarin or pyrene ring structure and an acceptor dye which is capable of absorbing energy emitted from the donor dye, wherein the donor dye has an absorption maxima between about 250 and 450 nm and the acceptor dye has an emission maxima at a wavelength greater than about 500 nm.
Abstract: Systems and methods for multiple analyte detection include a system for distribution of a biological sample that includes a substrate, wherein the substrate includes a plurality of sample chambers, a sample introduction channel for each sample chamber, and a venting channel for each sample chamber. The system may further include a preloaded reagent contained in each sample chamber and configured for nucleic acid analysis of a biological sample that enters the substrate and a sealing instrument configured to be placed in contact with the substrate to seal each sample chamber so as to substantially prevent sample contained in each sample chamber from flowing out of each sample chamber. The substrate can be constructed of detection-compatible and assay-compatible materials.
Type:
Grant
Filed:
May 27, 2010
Date of Patent:
December 3, 2013
Assignee:
Applied Biosystems, LLC
Inventors:
Min Yue, David M. Liu, Joy Roy, Yuh-Min Chiang, Joon Mo Yang, Dennis Lehto, Charles S. Vann, Nigel P. Beard, Ian A. Harding, John R. Van Camp, Alexander Dromaretsky, Sergey V. Ermakov, Mark F. Oldham, Maryam Shariati, Umberto Ulmanella
Abstract: A cover for a biological sample well tray, comprising a cap for sealing a sample well. The cap comprises a well lens for focusing light into the sample well and collecting light from the sample. In another aspect, the cap comprises an elongate portion configured to permit incoming light to pass into the sample well and out of the sample well. Various other aspects comprise a microcard for biological material, and an apparatus for a plurality of sample well strips. A method for testing a biological sample is also provided.
Type:
Grant
Filed:
April 8, 2008
Date of Patent:
November 26, 2013
Assignee:
Applied Biosystems, LLC
Inventors:
Steven J. Boege, Eugene F. Young, Donald R. Sandell
Abstract: Dark quencher constructs, termed “multi-chromophoric quenchers” are described herein that comprise at least two dark quenching moieties, which can be the same or different, linked together by at least one multivalent linking moiety. The structure of the multi-chromophoric quenchers can be varied to selectively enhance quenching within a specific range of reporter emission wavelengths. This can be accomplished by linking together, into a single molecule, two or more identical quenchers, by reacting the quenchers with a multivalent linker. The structure of the multi-chromophoric quencher can also be varied to quench a broader range of reporter emission wavelengths than previously possible. This can be accomplished by linking together, into a single molecule, two or more different quenchers, by reacting the quenchers with a multivalent linker.
Type:
Grant
Filed:
September 14, 2005
Date of Patent:
November 19, 2013
Assignee:
Applied Biosystems, LLC
Inventors:
Scott C. Benson, Steven M. Menchen, Krishna G. Upadhya
Abstract: The present invention provides methods and systems for an automated method of identifying allele values from data files derived from processed fluorophore emissions detected during the observation of fluorophore labeled nucleotide probes used in analyzing polymorphic DNA are provided. These methods are used in the rapid and efficient distinguishing of targeted polymorphic DNA sites without control samples.
Type:
Grant
Filed:
December 1, 2011
Date of Patent:
October 29, 2013
Assignee:
Applied Biosystems, LLC
Inventors:
Stephen Glanowski, Jeremy Heil, Emily S. Winn-Deen, Ivy A. McMullen
Abstract: A system for collecting target nucleic acids from a sample can include at least one sample chamber configured to receive a sample containing target nucleic acids and other material, at least one collection chamber removably mountable relative to the at least one sample chamber and configured to collect target nucleic acids separated from the other material, a filter removably mountable relative to the at least one sample chamber and configured to be disposed between the at least one sample chamber and the at least one collection chamber when the at least one collection chamber is mounted relative to the at least one sample chamber.
Type:
Grant
Filed:
July 24, 2008
Date of Patent:
October 29, 2013
Assignee:
Applied Biosystems, LLC
Inventors:
Charles S. Vann, Maxim G. Brevnov, David W. Ruff, Kenneth J. Livak
Abstract: A method comprising subjecting one or more sample portion(s) to a single amplification step, thereby amplifying a single molecule in the sample portion to a detectable level, and, in some embodiments, then determining whether the sample portion contains at least one molecule of the target nucleic acid. In some embodiments, the sample portion is in a porous sample structure, or in a sample chamber which comprises means for minimizing diffusion of the sample portion, or in a sample chamber which is inside a microcapillary device, or in a sample retaining means.
Type:
Grant
Filed:
August 11, 2012
Date of Patent:
October 22, 2013
Assignees:
Applied Biosystems, LLC, The United States of America, as Represented by the Secretary, Department of Health and Human Services
Abstract: An optical instrument is provided for simultaneously illuminating two or more spaced-apart reaction regions with excitation beams generated by a light source. The light source can include an area light array of light emitting diodes, one or more solid state lasers, one or more micro-wire lasers, or a combination thereof. According to various embodiments, a Fresnel lens can be disposed along a beam bath between the light source and the reaction regions. Methods of analysis using the optical instrument are also provided.
Type:
Grant
Filed:
July 3, 2008
Date of Patent:
October 15, 2013
Assignee:
Applied Biosystems, LLC
Inventors:
Steven J. Boege, Howard G. King, Eugene F. Young, Johannes P. Sluis, Mark F. Oldham
Abstract: An optical instrument monitors PCR replication of DNA in a reaction apparatus having a temperature cycled block with vials of reaction ingredients including dye that fluoresces in presence of double-stranded DNA. A beam splitter passes an excitation beam to the vials to fluoresce the dye. An emission beam from the dye is passed by the beam splitter to a CCD detector from which a processor computes DNA concentration. A reference strip with a plurality of reference emitters emit reference beams of different intensity, from which the processor selects an optimum emitter for compensating for drift. Exposure time is automatically adjusted for keeping within optimum dynamic ranges of the CCD and processor. A module of the beam splitter and associated optical filters is associated with selected dye, and is replaceable for different dyes.
Type:
Grant
Filed:
January 17, 2006
Date of Patent:
October 15, 2013
Assignee:
Applied Biosystems, LLC
Inventors:
Michael R. Gambini, Eugene F. Young, Edward J. Lakatos, Anthony L. Cerrone, Susan Atwood Stone, Judith K. Atwood
Abstract: A method comprising loading a sample into a microfluidic device which comprises plural sample chambers, subdividing the sample into a plurality of sample portions, such that respective sample portions are positioned in each of a plurality of the sample chambers, and subjecting the sample portions loaded into the respective sample chambers to at least a first amplification step. Each of the sample chambers has a respective volume such that if a sample portion positioned in the sample chamber comprises at least one molecule of a target nucleic acid, the target nucleic acid would attain a detectable concentration in the sample chamber after a single round of amplification.
Type:
Grant
Filed:
August 13, 2007
Date of Patent:
October 8, 2013
Assignees:
Applied Biosystems, LLC, The United States Department of Health and Human Services
Abstract: Disclosed, for example, are methods comprising cleaving an uncleaved probe to form a cleaved oligonucleotide flap, forming a hybridization complex between the cleaved oligonucleotide flap, a bridging oligonucleotide, and a capture oligonucleotide that is immobilized on a surface, such that the oligonucleotide flap and the capture oligonucleotide are hybridized to immediately adjacent, complementary regions of the bridging oligonucleotide, ligating the oligonucleotide flap to the capture oligonucleotide to form an immobilized ligation product, and detecting the ligation product.
Type:
Grant
Filed:
December 11, 2006
Date of Patent:
October 8, 2013
Assignee:
Applied Biosystems, LLC
Inventors:
Vladimir I. Bashkirov, Konrad Faulstich
Abstract: The present teachings provide methods, compositions, and kits for detecting the presence of protein aggregates. In some embodiments, the protein aggregate is treated with a labeled precursor, and the labeled precursor is incorporated into the protein aggregate to form a labeled protein aggregate. The labeled protein aggregate is then measured, thus detecting the presence of the protein aggregate. In some embodiments, the labeled protein aggregate is detected by interaction of labeled precursors, for example by a proximity ligation assay.
Type:
Grant
Filed:
May 2, 2007
Date of Patent:
September 17, 2013
Assignee:
Applied Biosystems, LLC
Inventors:
David W. Ruff, Mark E. Shannon, Kenneth J. Livak, Karl J. Guegler, Kevin M. Hennessy
Abstract: The present invention provides improved methods of attenuating gene expression through the phenomenon of RNA interference. The invention provides methods of synthesis of double stranded RNAs (dsRNAs) of increased potency for use as small interfering RNA (siRNA). Surprisingly and unexpectedly, siRNAs made by the methods of the invention are significantly more potent than previously available siRNAs.
Type:
Grant
Filed:
August 31, 2009
Date of Patent:
September 3, 2013
Assignee:
Applied Biosystems, LLC
Inventors:
David Brown, Lance P. Ford, Richard A. Jarvis, Vince Pallotta, Brittan L. Pasloske
Abstract: Modification formats having modified nucleotides are provided for siRNA. Short interfering RNA having modification formats and modified nucleotides provided herein reduce off-target effects in RNA interference of endogenous genes. Further modification formatted siRNAs are demonstrated to be stabilized to nuclease-rich environments. Unexpectedly, increasing or maintaining strand bias, while necessary to maintain potency for endogenous RNA interference, is not sufficient for reducing off-target effects in cell biology assays.
Type:
Grant
Filed:
March 19, 2010
Date of Patent:
September 3, 2013
Assignee:
Applied Biosystems, LLC
Inventors:
Nitin Puri, Irudaya Charles, Susan Magdaleno, Alexander Vlassov, Chris Burnett