Abstract:
Sorbent comprising a solid support material, the surface of which comprises first residues comprising a binuclear heteroaromatic structure comprising besides carbon atoms at least one of the heteroatoms N, O, S, and second residues comprising a mononuclear heteroaromatic structure comprising besides carbon atoms at least one of the heteroatoms N, O, S.
Abstract:
A device for extraction of analytes with aromatic cycles, preferably analytes with aromatic cycles for which the octanol-water partition coefficient is more than 103, the analytes being contained in a liquid phase, the extraction device including a support and an adsorption layer at least partially covering the support, the adsorption layer being porous SiOxCyHz.
Abstract:
A peptide having an ED50 of less than 500 nm, in particular 10 nM to an antibody which recognizes an epitope on an extracellular α1 loop 2 or β2 loop1 of a human adrenoceptor wherein the antibody's binding to the epitope results in an increase of γ-secretase activity, an increased release of β-amyolid molecules and/or cellular dysfunction of cerebral blood vessel cells, glia cells or neurons, wherein the ED50 value is measured by bioassay.
Abstract:
The invention discloses a method of separating a biomolecule from at least one other component in a liquid, comprising a step of contacting said liquid with a separation matrix comprising a solid support and polymer chains bound to said solid support. The polymer chains comprise units derived from a first monomer of structure CH2═CH-L-X, where L is a covalent bond or an alkyl ether or hydroxysubstituted alkyl ether chain comprising 2-6 carbon atoms, and X is a sulfonate or phosphonate group.
Abstract:
A packing material for liquid chromatography, which is excellent in durability, and a column for liquid chromatography, which is filled with the packing material, are provided. The packing material for liquid chromatography is characterized by comprising a hydrophilic resin containing a polyvinyl alcohol resin, to said hydrophilic resin an amino group represented by the formula (1) having been bonded through a spacer. In the formula (1), R1 represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, R2 represents an alkyl group having 1 to 6 carbon atoms and having one or more hydroxyl groups, and represents a bonding position to the spacer.
Abstract:
A field kit for collecting analytical samples has one or more dynamic fabric phase sorptive extraction (DFPSE) devices and/or fabric phase sorptive extraction (FPSE) devices and a plurality of containers for storing and transporting the DFPSEs and/or FPSEs that were used for sampling. The field kit has media for documenting information concerning the site, quantity, date, and/or other pertinent information concerning the sampling. Samples can be maintained within the kit for any required period of storage. Sampling can be done once or a plurality of times, such that an initial analysis can be carried out and analysis can be repeated using a portion of a FPSE or with a redundant FPSE that has been stored. The DFPSE device is a sampling device including a plurality of FPSEs, such that a number of different types of analytes can be sampled in different layers of the DFPSE. At least one external surface layer of the DFPSE is a barrier FPSE that restricts solids from underlying layers.
Abstract:
In one aspect, there is provided a method for isolating chromatin from a sample, comprising a step of passing a liquid sample comprising chromatin through a rigid porous matrix on which a ligand is immobilized, wherein the ligand binds to a protein associated with the chromatin.
Abstract:
Methods for making designed carbohydrate affinity columns and lectin columns are provided. Reducing sugar of choice is dissolved in pH 6.0 acetate buffer and injected onto a primary amino group functionality column. The column is washed with pH 6.0 acetate buffer and the column effluent monitored with a variable wavelength UV detector. Lectin columns are made by injecting appropriate lectin to the designed carbohydrate and the lectin binds to this scaffold. The lectin column is formed.
Abstract:
A means for selectively removing ET under coexistence of a substance showing a negative charge, such as nucleic acid is described. Endotoxin is selectively removed by bringing a polymer obtained by crosslinking cyclodextrin with an isocyanate-based crosslinking agent in contact with a solution containing endotoxin and the substance showing the negative charge such as nucleic acid.
Abstract:
The present invention relates to a chromatography ligand, which comprises Domain C from Staphylococcus protein A (SpA), or a functional fragment or variant thereof. The chromatography ligand presents an advantageous capability of withstanding harsh cleaning in place (CIP) conditions, and is capable of binding Fab fragments of antibodies. The ligand may be provided with a terminal coupling group, such as arginine or cysteine, to facilitate its coupling to an insoluble carrier such as beads or a membrane. The invention also relates to a process of using the ligand in isolation of antibodies, and to a purification protocol which may include washing steps and/or regeneration with alkali.