10 results about "Low Dose Radiation" patented technology

Disclosed is a low-dose radiation treatment system for dementia or chronic inflammation treatment based on a photon energy beam emission form, the low-dose radiation treatment system including: a low-dose radiation therapy device wherein a treatment bed where a patient receives treatment while lying down is formed on a device body and a plurality of carbon nanotube sources are installed around an inner periphery of a ring-shaped gate of the device body to form a radiation gantry so that therapeutic radiation is irradiated toward the patient's body; and a controller configured to check a patient's condition using entered patient information and to set a treatment direction, and then to perform radiation therapy by controlling an operation of the low-dose radiation therapy device, wherein pulsed beam-type carbon nanotube sources are installed around the inner periphery of the radiation gantry, and the controller controls a radiation beam irradiation time (beam on-off time) of the carbon nanotube sources and a radiation beam irradiation interval between the carbon nanotube sources to control the radiation beam irradiation interval to a cell damage repair time (DNA repair time) of being capable of repairing DNA damage in normal cells.

The present invention relates to a composition for the prevention or treatment of metastatic cancer, capable of inducing an abscopal effect, which is a systemic anticancer effect, in combination with radiotherapy to treat metastatic cancer that has spread from a primary cancer, wherein, by having confirmed that, upon radiotherapy in which a primary cancer site was irradiated with a low dose of radiation, the abscopal effect, which is a systemic anticancer effect, did not appear, whereas, when type 1 interferon was administered in combination with low-dose radiation to the primary cancer site, an anticancer effect appears even in non-radiated metastatic cancer sites, a composition comprising type 1 interferon is provided as a therapeutic agent or adjuvant for the treatment of metastatic cancer, which induces a systemic anticancer effect upon low-dose radiotherapy.

The present disclosure provides a module for creating a metal-containing film, including a reactor chamber; an inlet for providing an organo-metallic precursor to the reactor chamber; and an inlet for providing a reactive gaseous species to react with the organo-metallic precursor to form a metal-containing film. The reactive gaseous species includes an element having three to five valence electrons and one or more radicals selected from hydrogen, C1-C3 alkyl, and C1-C3 alkoxyl. The present disclosure further relates to a method of creating the metal-containing film and a semiconductor structure associated therewith.

Recombinant expression systems and radiation useful for the treatment of cancer The invention relates to a recombinant expression system comprising a nucleic acid construct, particularly for use in a combined gene and radiation therapy for the treatment of diseases, especially cancer. Said expression system is administered to a tumor that received prior low dose radiation. Additionally, the method comprises that at least one further tumor different from the one treated with expression system is subjected to radiation.

The application provides application of indole acetic acid in intervention or treatment of thyroid cancer caused by long-term low-dose ionizing radiation, and belongs to the field of biomedical technology. It is found that indole acetic acid (IAA) is significantly negatively correlated with the occurrence of thyroid nodules after low-dose radiation, the proliferation, clone formation, invasion and migration of BCPAP cells can be inhibited after IAA is supplemented, and the tumor formation ability is greatly reduced, so the thyroid cancer caused by long-term low-dose ionizing radiation can be treated by supplementing IAA. The application also screens the KCNE4 gene for regulating the thyroid cancer caused by long-term low-dose ionizing radiation, and IAA can inhibit the expression of the gene, which indicates that IAA and the inhibitor of the gene both have the potential of serving as a therapeutic target for the thyroid cancer caused by long-term low-dose ionizing radiation.

The present invention relates to a rheumatoid arthritis treatment method comprising a step of irradiating an affected area of a patient that has rheumatoid arthritis with low-dose radiation, wherein the inflammation of rheumatoid arthritis is alleviated by inducing apoptosis of immune cells, and an alternative treatment method, instead of surgery, can be provided to patients with DMARD resistance.

This invention discloses a modified polyester film for tritium-proof ventilated clothing and its preparation method, belonging to the technical field of functional protective clothing. The modified polyester resin for tritium-proof ventilated clothing comprises, by weight, the following components: TPEE resin: 50-70 parts, PVDF resin: 10-20 parts, EBA resin: 20-30 parts, antioxidant: 1-2 parts, and sensitizer: 1-2 parts. The three resins in the modified polyester resin for tritium-proof ventilated clothing have a synergistic effect. Preparing it into a modified polyester film for tritium-proof ventilated clothing significantly improves the tritium permeability, abrasion resistance, and low-temperature heat-sealing properties of the modified polyester film. Furthermore, it can be heat-sealed and then modified with low-dose radiation to enhance the mechanical properties and heat-sealing strength of the tritium-proof ventilated clothing.

The invention discloses a novel low-dose radiation protection material based on series connection of curcumin and a preparation method of the novel low-dose radiation protection material, and belongs to the technical field of high polymer materials. According to the material, a low-dose radiation protection elastomer with a microphase separation structure is formed through the coordination effect of natural ligand curcumin and rare earth metal europium ions in combination with dual crosslinking of coordinate bonds and hydrogen bonds. The soft and hard sections are alternately designed, so that the radiation resistance is remarkably improved while the flexibility of the material is kept. Experiments show that after the material is irradiated by 300kGy, the strength retention rate reaches 52%, the elongation at break retention rate reaches 89%, and the material has self-repairing potential. The preparation method comprises the steps of reagent purification, prepolymer synthesis, copolymerization, coordination and post-treatment, the process is simple, a radiation-resistant additive does not need to be added, and the problem of additive migration is avoided. The material can be widely applied to the fields of nuclear industry, spaceflight and radiation medical treatment, and a high-performance protective material solution is provided for a high-radiation environment.

A radiation detection panel and a preparation method therefor, and a radiation detector. The radiation detection panel comprises a detection substrate (20) and a scintillator layer (10) located on one side of the detection substrate (20), wherein the scintillator layer (10) has scintillator units (100) arranged in an array; each scintillator unit (100) includes at least two layers of stacked scintillator sub-units; in any two adjacent layers of scintillator sub-units, the scintillator subunits on the side closer to the detection substrate (20) have a higher conversion rate for radiation rays than the scintillator subunits on the side farther away from the detection substrate (20), and the scintillator subunits on the side closer to the detection substrate (20) have a lower tolerance to the radiation rays than the scintillator subunits on the side farther away from the detection substrate (20). Therefore, the radiation detection panel can use a low-dose radiation source to achieve high-resolution radiation imaging.

The invention provides a method for radiation modification of ultra-high molecular weight polyethylene powder and application thereof, and the method comprises the following steps: carrying out radiation treatment on ultra-high molecular weight polyethylene primary powder at a dosage of less than or equal to 5 kGy. The ultra-high molecular weight polyethylene primary powder is treated through low-dose radiation, the molecular chain entanglement density and the molecular weight distribution index of the ultra-high molecular weight polyethylene primary powder are effectively reduced, so that the high-performance ultra-high molecular weight polyethylene powder is obtained, and a molded product of the ultra-high molecular weight polyethylene powder has excellent comprehensive mechanical properties.