The problem of environmental pollution is becoming more and more serious. People are eager to have a kind of instrument that can monitor pollutants continuously, quickly, and online. Biosensors meet people's requirements. Quite a few biosensors have been used in environmental monitoring. Our team built a machine that can detect zinc contamination in water bodies as an early warning device to ensure the safety of drinking water for residents in urban or remote areas. Not only can machines help governments with environmental regulation, but we can also conduct final checks on factory effluent discharges to ensure that discharged or treated effluent meets standards.
Others how to use: we developed a kind of riboflavin gene, film hole protein gene promoter of new zinc and zinc sensitive specificity biosensor with the battery as the main body, start the zinc sensitive gene promoter, zinc ion concentration increase of riboflavin gene expression, promote the electronic transmission, eventually lead to the change of the current. To get people's attention. The method of use is simple, one just needs to add wastewater to the machine, and can finally test the level of contamination.
Early in the process, the device still had some problems. For example, there were many signs that the current did not change significantly because of the low efficiency of electron transfer from the oxidation of E. coli. Constantly experiment was carried out, after teaming in order to improve the transmission efficiency, relevant personnel carrier protein gene (oPrF) insert film hole, hole to escherichia coli, membrane protein gene expression in great quantities, e. coli holes in a cell's outer membrane protein increased, so that e. coli outer membrane permeability increased so that more electrons can enter the solution and adsorption on the electrode on the carbon carpet. As the current increases, so does the amount of current, making it easier to observe. Many problems encountered in the process of equipment development have been successfully solved.
Because we thought carefully and avoided many safety issues, the machine has no safety problems. Governments and factories can use it.
