3results about How to "Efficient and fast detection" patented technology

The invention provides an MWCNTs-Au electrochemical biosensor based on RPA-CRISPR as well as a preparation method and application of the MWCNTs-Au electrochemical biosensor, and belongs to the technical field of preparation of electrochemical biosensors and detection of pathogenic bacteria of dairy products. The electrochemical biosensor disclosed by the invention comprises a multi-walled carbon nanotube-nanogold-hairpin nucleotide probe modified silk-screen printing carbon electrode and a CRISPR (Clustered Regularly Interspaced Short Palindromic Repeats)-crRNA-Target DNA (Deoxyribose Nucleic Acid) ternary complex, the CRISPR-crRNA-Target DNA ternary complex is assembled on the surface of the multi-walled carbon nanotube-nanogold-hairpin nucleotide probe modified silk-screen printing carbon electrode, and the CRISPR-crRNA-Target DNA ternary complex is assembled on the surface of the multi-walled carbon nanotube-nanogold-hairpin nucleotide probe The electrochemical biosensor shows wide linear response in a range of 1.04 * 10 < 1 > to 1.04 * 10 < 8 > CFU / mL, and the detection limit is as low as 3 CFU / mL; and the method has good practicability in detection of staphylococcus aureus.

The utility model relates to a radio frequency output locking detection system for radio frequency power supply, contain radiator (1), PCB detection board (5), joint adapter (7) and output limiting mechanism, PCB detection board (5) install on the surface of radiator (1), and output limiting mechanism installs on radiator (1), and the connector of output limiting mechanism is connected with PCB detection board (5) through joint adapter (7). The utility model relates to a radio frequency output locking detection system for radio frequency power supply, and it can reliably and effectively lock the detection of the radio frequency output end of radio frequency power supply.

The invention provides a turbine shaft self-centering tool and a cylindrical lathe. The turbine shaft self-centering tool comprises a pair of self-centering clamps, and the self-centering clamps are driven by lifting and translation mechanisms installed on the self-centering clamps to synchronously conduct lifting and translation movement; the turbine shaft containing space is provided with vertical inner grooves in the two sides and an isosceles inclined groove in the bottom, the inclination angle of the isosceles inclined groove is 45 degrees, the lowest point of the isosceles inclined groove is set as a starting positioning point, and a height positioning device for detecting the height of the upper end face of a turbine shaft is installed on the side edge of each vertical inner groove. The turbine shaft centering device is simple in structure, the loading and detection process is efficient and convenient, the detection precision is high, the detection precision is high, the detection precision is high, the detection precision is high, the detection precision is high, the detection precision is high, and the detection precision is high. The mechanism arrangement is simplified while the centering efficiency is improved, the practicability of the device is greatly improved, and batch production and manufacturing are facilitated.