35 results about "Magnetic Bead Technology" patented technology

The invention discloses a drawing forming die with blank pressing conducted by adopting an electronic control permanent magnet technique and a blank pressing method of the drawing forming die. The assembly of the drawing forming die with blank pressing conducted by adopting the electronic control permanent magnet technique is of a forward erection structure; the drawing forming die comprises an upper die base, a male die, a pressing plate, a female die, an electronic control permanent magnet sucking disc, a lower die base, a stripper bolt, a stopper screw and press sliding blocks; the male die is installed on the upper die base; the two press sliding blocks are installed on the upper die base symmetrically in the horizontal direction; the pressing plate is installed on the upper die base in a symmetric mode in the horizontal direction; the electronic control permanent magnet sucking disc is installed on the lower die base; the female die is located in a circular through hole in the center of the electronic control permanent magnet sucking disc; the female die is installed on the lower die base; the upper surface of the female die and the upper surface of the electronic control permanent magnet sucking disc are located on the same horizontal plane; the lower die base is provided with two vertical sliding channels which are symmetric in the horizontal direction; the two press sliding blocks are arranged on the two vertical sliding channels in a sleeving mode respectively and can slide along the vertical sliding channels freely in the vertical direction; the press sliding blocks are in clearance fit with the vertical sliding channels correspondingly; a through hole is formed in the center of the pressing plate, and the male die can penetrate the through hole and enter a female die cavity.

The invention discloses a reporter magnetic bead, which includes magnetic beads, nucleotides and enzymes with high catalytic activity linked. The invention also discloses a signal amplification magnetic bead technology system for nucleic acid detection based on CRISPR technology, and the invention also discloses a construction method and application of the reporter magnetic beads. The invention improves the sensitivity of the signal amplification magnetic bead technology system from the concentration level of aM (1000-10000 copies / mL) to the concentration level of zM (1-10 copies / mL) by introducing the reporter magnetic beads.