3 results about "Bioindicator" patented technology

This invention belongs to the field of ecological environment monitoring technology and relates to a multi-level bioindicator method for the effective phytotoxicity of heavy metal-like substances / heavy metals. The method includes the following steps: S1. Obtaining plant samples affected by the soil or water body to be tested; S2. Measuring the activity of superoxide dismutase (SOD), gibberellin (GA), and chlorophyll content in the plant samples; S3. Based on the measured results of SOD activity, plant hormone content, and chlorophyll content, and their changes over time, classifying and assessing the effective phytotoxicity effects of heavy metal-like substances or heavy metals. This invention is the first to propose a unified three-level bioindicator method (SOD activity, GA hormone, and chlorophyll) that can effectively reflect soil pollution levels for typical heavy metal-like substances / heavy metals present in the actual environment, enabling a simpler assessment of the degree of heavy metal pollution in actual soil.

This application relates to the field of combustion product testing, specifically a smoke toxicity testing device. It includes a base on which multiple independent mouse cages are fixed, each cage having a gas inlet and a gas outlet. This smoke toxicity testing device directly assesses smoke toxicity by placing live mice in the cages, introducing smoke into the cages, and observing the mice's reactions. Using live mice as a bioindicator for assessing smoke toxicity simulates the potential harm to humans in real fire scenarios, intuitively reflecting the impact of smoke on organisms, and more effectively assessing smoke toxicity. This provides researchers with a direct method for assessing smoke toxicity, offering a basis for improving fire prevention and response measures.

The application discloses a biological indicator recognition and detection method, which is detected by a biological indicator recognition and detection device; during detection, a culture temperature is set, a filter switching device is switched to a non-filter mode, an initial state image is acquired by taking a photo of the indicator by a camera and the type of the indicator is recognized, and a corresponding detection algorithm is matched according to the type of the indicator; then the filter switching device is switched to a fluorescent filter mode, an ultraviolet light source is turned on, and the indicator is detected by taking a photo of the indicator by the camera; after detection is completed, the indicator is cultured, and a final state image is acquired by taking a photo of the indicator by the camera after culture is completed. Before the indicator is detected, the type of the indicator can be automatically recognized; after the type of the indicator is obtained, the system can automatically match a corresponding indicator detection algorithm, so that different types of biological indicators can be simultaneously compatible, and the universality of the detection equipment is improved.