Abstract:
Microfluidic devices and methods for using the same are provided. Aspects of the invention include microfluidic devices that include a separation medium and a pan-capture binding medium. The microfluidic devices are configured to subject a sample to two or more directionally distinct electric fields. Also provided are methods of using the devices as well as systems and kits that include the devices. The devices, systems and methods find use in a variety of different applications, including diagnostic and validation assays.
Abstract:
Electrophoresis Compositions, methods and kits useful for, among other things, detecting, quantifying and/or characterizing analytes are provided. The compositions are useful as electrophoresis standards for determine the isoelectric point and molecular weight of an analyte. The electrophoresis standards generally comprise at least one label moiety and one or more reactive moieties that when activated attach the standard to a substrate.
Abstract:
Methods and kits for diagnosing the presence of and prognosing the appearance of tissue remodelling-associated conditions, involving the presence of enzyme complexes in a biological sample, are disclosed. In particular, the method pertains to diagnosing the presence of or prognosing appearance of metastatic cancer by the identification of high molecular weight enzyme complexes comprising MMPs.
Abstract:
Provided herein is technology relating to depositing and/or placing a macromolecule at a desired site for an assay and particularly, but not exclusively, to methods and systems for placing or guiding a macromolecule such as a protein, a nucleic acid, or a protein:nucleic acid complex to an assay site, such as near a nanopore, a nanowell, or a zero mode waveguide.
Abstract:
The present invention provides methods and compositions for labeling, separating and analyzing proteins, particularly a specific protein of interest within a cell lysate or in a mixture of proteins. The proteins are labeled with an amine reactive or thiol reactive fluorescent dye, or an amine reactive fluorogenic reagent that becomes fluorescent upon reacting to amine groups located on the protein. Following the labeling step, the proteins within the mixture can be separated and analyzed. In a further embodiment, a tag binding fluorogenic reagent that can bind to a tag on a tagged protein is added to specifically label the protein of interest.
Abstract:
A method employing gel electrophoresis and optical imaging techniques to measure the amount of biomaterial that attaches to specified locations on a detector slide such as a bioarray or biochip.
Abstract:
Methods for identifying disease-specific markers, in particular breast cancer markers, by electrophoretically separating serum albumin complexes in a biological sample on a membrane are provided. Electrophoretic separation profiles representing different diseases or different cancer stages can be produced, and used in the diagnosis, prognosis and treatment of these diseases. Methods for identification of a cancer peptide fragment comprising a cancer peptide motif are provided. Also provided are breast cancer and other cancer markers and antibodies that specifically recognize these markers.
Abstract:
Microfluidic devices and methods for using the same are provided. Aspects of the invention include microfluidic devices that include a separation medium and a pan-capture binding medium. The microfluidic devices are configured to subject a sample to two or more directionally distinct electric fields. Also provided are methods of using the devices as well as systems and kits that include the devices. The devices, systems and methods find use in a variety of different applications, including diagnostic and validation assays.
Abstract:
Methods for screening for neurological disorders are disclosed. Specifically, methods are disclosed for screening for neurological disorders in a subject by analyzing a tissue sample obtained from the subject for the presence of elevated levels of neurotoxic amino acids or neurotoxic derivatives thereof associated with neurological disorders. In particular, methods are disclosed for diagnosing a neurological disorder in a subject, or predicting the likelihood of developing a neurological disorder in a subject, by determining the levels of β-N-methylamino-L-alanine (BMAA) in a tissue sample obtained from the subject. Methods for screening for environmental factors associated with neurological disorders are disclosed. Methods for inhibiting, treating or preventing neurological disorders are disclosed.
Abstract:
A process and a kit are provided for detecting differences in two or more samples of protein, including proteins bearing post-translational modifications and peptides. Proteins are prepared, for example, from each of a different group of cell samples or body fluid samples to be compared. Each protein extract is labeled with a different one of a luminescent dye from a matched set of dyes. The matched dyes have generally the same ionic and pH characteristics but emit light at different wavelengths to exhibit a different color upon luminescence detection. The labeled protein extracts are mixed together and separated together by electrophoresis or a chromatographic method. The separation is observed to detect proteins unique to one sample or present in a greater ratio in one sample than in the other. Those unique or excess proteins will fluoresce the color of one of the dyes used. Proteins common to each sample migrate together and fluoresce the same.