2results about How to "Avoid matching problems" patented technology

The application discloses a preparation method and application of a peptide self-assembled photo-induced thermoelectric composite functional film, and belongs to the field of new biological materials. The method comprises the following steps: adding a peptide and tyrosinase into a reaction system to obtain a reaction solution, the peptide comprises at least one tyrosine residue, and simultaneously comprises at least one positive electric amino acid residue and at least one negative electric amino acid residue; the tyrosinase catalyzes the reaction of the tyrosine residue in the peptide to generate a melanin-like structure, so as to self-assemble to form a photo-induced thermoelectric composite functional film at a gas-liquid interface. In the assembling process, the catalytic oxidation of the tyrosinase is simultaneously completed to prepare the film, the film is only composed of the peptide, does not need a substrate, can independently exist and can be processed into a specific shape; the melanin-like structure in the film simultaneously has photo-thermal and photo-electric dual functions, is used for tumor photo-thermal treatment and photo-electric nerve stimulation, and overcomes the problems of limited form, single function and insufficient biocompatibility of the existing peptide materials.

A direct current contactor capable of executing large current breaking for multiple times comprises a shell, a driving system, a contact system, an electronic ignition assembly and a telescopic action execution assembly. The action execution assembly is arranged in the shell corresponding to the movable contact plate; the electronic ignition assembly is arranged at the top of the shell corresponding to the action execution assembly; the electronic ignition assembly comprises an electronic ignition tube shell and at least two electronic ignition tubes, and an exhaust channel communicated with the exterior of the shell is formed in the shell wall of the electronic ignition tube shell. The action execution assembly is in sealing contact with the inner wall of the electronic ignition tube shell, and when the contact system is normally switched on and switched off, one end of the action execution assembly located in the electronic ignition tube shell seals the exhaust channel; in a normal working state, the action execution assembly and the electronic ignition assembly do not act, and the driving system drives the contact plate to move, so that the contact system performs normal opening and closing. Through the multiple independent electronic ignition tubes and the exhaust channels, multiple times of large-current breaking are achieved, and the breaking capacity and the utilization rate of the contactor are improved.