39 results about "Heavy ion radiation" patented technology

The invention belongs to the technical field of semiconductors, and relates to a method for improving single-layer WSe2 second harmonic signal intensity, which comprises the following steps of: preparing a single-layer WSe2 material; carrying out heavy ion radiation on the single-layer WSe2 material to generate defects in the single-layer WSe2 material; by controlling the energy of the heavy ion radiation, the defect concentration in the single-layer WSe2 material is controlled, so that the second harmonic signal intensity of the single-layer WSe2 material is improved. Vacancy defects and tiny disordered regions are introduced into the material, and intrinsic enhancement is realized on the basis that intrinsic photoelectric characteristics of a single-layer material are not changed. Compared with an external field regulation and control method, the defect caused by ion irradiation is permanent structural change, once the defect is formed, the enhancement effect always exists and does not need to be maintained by continuously consuming energy, and the key requirements of non-volatile property and low power consumption are met.

The invention relates to the technical field of biological medicine, and particularly provides a medicine for relieving cell damage caused by heavy ion radiation and application of the medicine. The medicine can obviously improve the cell cloning survival rate under the condition of carbon ion radiation, inhibit necroptosis and weaken inflammation-related transcription reaction caused by radiation. According to the present invention, the multi-level experiments such as clone formation experiment, protein level detection, transmission electron microscope observation, transcriptomics analysis and the like prove that the pharmaceutical composition can specifically improve the cell survival state after carbon ion irradiation, and has no significant protection effect on X-ray irradiation; the invention provides a new pharmacological scheme for heavy ion radiotherapy related protection and complication intervention, and has important application prospects.