340nm 380nm 405nm 450nm 505nm Enzyme Label Filter

In clinical laboratory tests, enzyme - labeled filter sheets of different wavelengths are widely used in the detection of various disease diagnostic markers. For example, 340nm filter sheets are often used for enzyme - based assays based on NADH/NAD+ redox reactions, such as lactate dehydrogenase (LDH), which can be used to assess cell damage and tissue necrosis. 405nm and 450nm filter sheets are extensively used in enzyme - linked immunosorbent assay (ELISA) to detect tumor markers (such as carcinoembryonic antigen CEA), cardiovascular disease markers (such as troponin TnI) and infectious disease pathogens (such as hepatitis B virus HBV antigen), providing an important basis for early disease diagnosis, disease monitoring and treatment evaluation.

In drug screening and pharmacological research, enzyme - labeled filter sheets can be used to detect cell viability, cell proliferation, cell toxicity, and the interaction between drugs and target proteins. For example, 380nm and 505nm filter sheets can be used in fluorescence polarization immunoassay (FPIA) to detect the binding affinity between drugs and receptor proteins, accelerating the drug development process. 450nm filter sheets can be used to detect intracellular cAMP levels and evaluate the impact of drugs on cell signaling pathways, thereby screening potential therapeutic drug compounds.

For the detection of harmful substances such as pesticide residues, veterinary drug residues, microbial toxins and illegal additives in food, enzyme - labeled filter sheets play a key role. For example, 405nm filter sheets can be used to detect aflatoxin B1 in food. Through ELISA methods reacting with specific antibodies, high - sensitivity detection of trace toxins can be achieved. 340nm filter sheets can be used to detect the activity of acetylcholinesterase in food, indirectly reflecting the pesticide residue situation and ensuring the safety and quality of food.

In environmental samples such as water, soil and air, enzyme - labeled filter sheets can be used to detect environmental pollutants, pathogens and biomarkers. For example, 450nm filter sheets can be used for enzyme - linked immunosorbent assay (ELISA) to detect pathogens such as Escherichia coli in water. By detecting the color change generated by the reaction of enzymes with substrates, quantitative detection can be carried out, providing data support for environmental quality assessment and pollution control. 340nm filter sheets can be used to detect hydrolysis products of organophosphorus pesticides in environmental samples, monitoring the degree of pesticide pollution in the environment and taking timely measures to reduce environmental pollution.