5results about How to "Deep penetration" patented technology

The invention provides a high-power optical fiber laser treatment system which comprises a rack body, a signal control module, a treatment scheme management module, a signal driving module, an optical fiber laser assembly and a constant temperature control module. The signal control module, the treatment scheme management module, the signal driving module, the optical fiber laser assembly and the constant temperature control module are all installed on the machine frame body, and the optical fiber laser assembly comprises a semiconductor pump laser, a thulium-doped optical fiber, a coupler, a transmission optical fiber and an aspherical lens. The semiconductor pump laser, the thulium-doped optical fiber, the coupler and the transmission optical fiber are in light path connection, the central axes of the semiconductor pump laser, the coupler, the thulium-doped optical fiber, the transmission optical fiber and the aspherical lens coincide, the therapeutic scheme management module is in communication connection with the signal control module, and the signal driving module is in communication connection with the signal control module. The semiconductor pump laser is in communication connection with the signal driving module, and the constant temperature control module is in communication connection with the signal control module and the fiber laser assembly.

The present invention discloses a high-humidity radio frequency thawing refrigeration system, which aims to provide a system that can realize the functions of food freezing, sterilization and rapid thawing. It includes a freezing and refrigeration cycle system, a high-humidity radio frequency thawing system and an auxiliary humidification system; the high-humidity radio frequency thawing system includes a radio frequency power module, a solution box with an upper cover, and a positive plate, a negative plate and a loading platform located in the solution box; the evaporator is placed in the upper part of the solution box, and the positive plate and the negative plate are arranged in parallel on both sides of the loading platform and are respectively connected to the positive and negative poles of the radio frequency power module to form a radio frequency heating unit; the auxiliary humidification system includes a water tank, a gas-liquid separator, a liquid atomizing nozzle and a gas nozzle, and the condenser is placed in the water tank. The system of the present invention has the functions of freezing and rapid thawing, and solves the drying problem caused by overheating at the sharp corners during the radio frequency thawing of food. Moreover, the heating rate is fast, which can avoid the deterioration of food quality caused by the long heating time.

The application belongs to the technical field of textile fabric functional finishing, and particularly relates to a preparation method of super-hydrophobic fabric. The preparation method of the super-hydrophobic fabric comprises the following steps: pretreating cotton fabric by using a zinc ion mixed solution of sodium hydroxide to obtain cotton fabric containing a zinc oxide seed layer; then immersing the cotton fabric containing the zinc oxide seed layer in a mixed solution of a zinc nitrate aqueous solution and a hexamethylenetetramine aqueous solution to obtain a ZnO composite fabric; and finally using the bridging effect of a mercapto silane coupling agent to bond low-surface-energy polydimethylsiloxane and octavinyl octasilsesquioxane to the cotton fabric to obtain the super-hydrophobic fabric. The above method can endow the fabric with excellent hydrophobicity and improve the washing resistance of the hydrophobic effect.

This invention discloses a GTR membrane, its preparation method, and its application, belonging to the field of biomedical materials technology, and solves the problem of insufficient antibacterial effect of existing GTR membranes. The method includes the following steps: uniformly dispersing BaTiO3 in a Tris buffer solution; dissolving dopamine hydrochloride powder in the reaction system; stirring evenly; centrifuging to collect the precipitate; cleaning and drying to obtain PDA@BaTiO3 nanoparticles; adding the PDA@BaTiO3 nanoparticles to a silver ammonia solution; stirring at room temperature; centrifuging to collect the precipitate; cleaning and drying to obtain Ag@PDA@BaTiO3 particles; uniformly dispersing the Ag@PDA@BaTiO3 particles in a hexafluoroisopropanol solution of L-polylactic acid; electrospinning the reaction system to obtain a fiber membrane; and sequentially subjecting the membrane to ventilation, high-temperature annealing, and natural cooling to room temperature to obtain the GTR membrane. The GTR membrane provided by this invention possesses both piezoelectric and photothermal effects, exhibits rapid sterilization and long-lasting antibacterial activity, and has a simple preparation process.

The present invention discloses a high affinity peptide targeting trophoblast antigen 2 and its application, which belongs to the field of biomedical engineering, and specifically relates to a tumor targeting peptide having the following structure: n ‑Gly‑Leu‑Pro‑Tyr‑Glu‑A‑B‑C‑NH2; A is selected from Ala, Val, Leu, Ile, Phe, Trp, Tyr, Asp, Asn, Glu, Lys, Gln, Met, Ser, Thr, Cys, Pro, His or Arg; B is selected from Tyr or D‑Tyr; C is selected from Cys or D‑Cys; n is the coupling number of D, n ≥ 0. The present invention develops new polypeptides targeting trophoblast cell surface antigen 2, using the high expression of Trop2 receptors in breast tumors to target and identify tumor cells. These polypeptides can quickly reach the tumor site and stay there, thereby obtaining good tumor imaging effects.