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179 results about "Morpholino" patented technology

A Morpholino, also known as a Morpholino oligomer and as a phosphorodiamidate Morpholino oligomer (PMO), is a type of oligomer molecule (colloquially, an oligo) used in molecular biology to modify gene expression. Its molecular structure has DNA bases attached to a backbone of methylenemorpholine rings linked through phosphorodiamidate groups. Morpholinos block access of other molecules to small (~25 base) specific sequences of the base-pairing surfaces of ribonucleic acid (RNA). Morpholinos are used as research tools for reverse genetics by knocking down gene function.

Morpholino Nucleic Acid Derivatives

The present invention provides a useful morpholino nucleic acid derivative for synthesizing a morpholino nucleic acid oligomer. The present invention provides a compound represented by the following general formula (1) or a salt thereof.Here, R1 represents hydrogen, trityl and so on.R2 represents an amide or an imine.R3 represents a hydroxy group which may be protected by trialkylsilyl and so on, or a group represented by the following general formula (5):(wherein X represents O or S, Y represents dialkylamino or alkoxy, and Z represents chlorine).
Owner:NIPPON SHINYAKU CO LTD

Copper chemical mechanical polishing solutions using sulfonated amphiprotic agents

A family of slurries useful in modifying exposed surfaces of wafers for semiconductor fabrication are provided along with methods of modifying exposed surfaces of wafers for semiconductor fabrication utilizing such a family of working slurries, and semiconductor wafers. The slurries of the invention are a solution of initial components, the components comprising: a sulfonated zwitterion selected from 2-(N-Morpholino)ethanesulfonic acid, (3-[N-Morpholino])propanesulfonic acid, 2-[(2-Amino-2-oxoethyl)amino]ethanesulfonic acid, Piperazine-N, N′-bis(2-ethanesulfonic acid), 3-(N-Morpholino)-2-hydroxypropanesulfonic acid, N ,N-Bis(2-hydroxyethyl)-2-aminoethanesulfonic acid, 3-(N-Morpholino)propanesulfonic acid, N-(2-Hydroxyethyl)piperazine-N′-(2-ethanesulfonic acid), N-Tris(hydroxymethyl)methyl-2 aminoethanesulfonic acid, 3-[N ,N-Bis(2-hydroxyethyl)amino]-2-hydroxypropanesulfonic acid, 3-[N -Tris(hydroxymethyl)methylamino)-2-hydroxypropanesulfonic acid, N-(2-hydroxyethyl)piperazine-N′-(2-hydroxypropanesulfonic acid), Piperazine-N ,N′-bis(2-hydroxypropanesulfonic acid), N-(2-Hydroxyethyl)piperazine-N′-(3-propanesulfonic acid), N-Tris(hydroxymethyl)methyl-3-aminopropanesulfonic acid, 3-[(1,1-Dimethy 1-2-hydroxyethyl)amino]-2-hydroxypropanesulfonic, acid, 2-(N-Cyclohexylamino)ethanesulfonic acid, 3-(Cyclohexylamino)-2-hydroxy-I-propanesulfonic acid, 2-Amino-2-methyl-I-propanol, 3-(Cyclohexylamino)-1-propanesulfonic acid, an oxidizing agent; optionally, a passivating agent; optionally a chelating agent, optionally abrasive particles, optionally a surfactant, optionally a secondary buffering agent and water. The method of the invention comprises the steps of: a) providing a wafer comprising a first material having a surface etched to form a pattern and a second material deposited over the surface of the first material; b) contacting the second material of the wafer with abrasive in the presence of the working slurry; and c) relatively moving the wafer or polishing pad or both while the second material is in contact with the slurry and abrasive particles until an exposed surface of the wafer is planar and comprises at least one area of exposed first material and one area of exposed second material.
Owner:ARKEMA INC

Clenbuterol immunomagnetic bead separation and enrichment kit and application thereof

The invention relates to a clenbuterol immunomagnetic bead separation and enrichment kit. The clenbuterol immunomagnetic bead separation and enrichment kit comprises a magnetic bead which is coupled to a clenbuterol monoclonal antibody, reconstitution fluid and a magnet, wherein the magnetic bead which is coupled to the clenbuterol monoclonal antibody is formed by mixing and dissolving the clenbuterol monoclonal antibody and the magnetic bead in 2-(N-morpholino) ethanesulfonic acid monohydrate in a coupling way according to a mass ratio of 1:(500 to 1000); the clenbuterol monoclonal antibody is obtained by taking a coupling substance obtained from clenbuterol haptin and bovine serum albumin as an immunogen to immune Balb/c mice; the clenbuterol haptin is obtained by carrying out diazo-reaction on clenbuterol and P-hydroxybenzene propanoic acid and bringing a carboxyl spacer arm on amino. The invention also relates to a sample preprocessing method for separating the clenbuterol by adopting the clenbuterol immunomagnetic bead separation and enrichment kit. According to the sample preprocessing method disclosed by the invention, higher specificity, higher recovery rate and higher accuracy on the clenbuterol are obtained, sample preprocessing steps are simplified, and various and a mass of organic solvents can be prevented from being used during a sample preprocessing procedure.
Owner:BEIJING KWINBON BIOTECH

Modification method for animal skin collagen

The invention discloses a method for modifying a collagen body of animal skin, which is characterized in that: 100 weight portions of collagen body material is taken and is added into 800 to 2,000 weight portions of 40 to 80v / v percent alcohol solution of 2-N-morpholino ethanesulfonic acid (MES) with a concentration between 20 and 70mmol / L and a pH value between 5.0 and 6.0 or a phosphate buffer solution (PBS) with the pH value between 5.0 and 6.0, the mixture is oscillated for 15 to 60min, then is respectively added with 2 to 30 weight portions of 1-ethyl-3-(3-dimethylaminopropyl) carbodiimide (EDC) and N-hydroxysuccinimide (NHS), is oscillated for 4 to 24h at room temperature to produce a collagen body modification material; or 100 weight portions of the collagen body material is taken, is added into 800 to 2,000 weight portions of the phosphate buffer solution (PBS) with the pH value between 6.0 and 8.0, is oscillated for 15 to 60min, then is added with 3 to 15 weight portions of genipin, and is oscillated for 10 to 24h at a temperature of between 20 and 40 DEG C to produce the collagen body modification material; then a monobasic sodium phosphate solution with the concentration of 0.1mol / L, the phosphate buffer solution with the pH value between 7.2 and 7.4 and double distilled water are orderly used to repeatedly clean the collagen body modification material, each cleaning time is not less than 60min, the cleaning time of each cleaning solution is not less than 3h, and the total cleaning time reaches more than 24h; and finally a modified collagen body material is produced by freeze drying.
Owner:JIANGYIN BENXIANG BIOTECHOLOGY
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