we have done this ourselves in the center of neurosciences of baqiyat university, seeking the help of domestic researchers. we came strong with a cold plasma jet with argon gas, argon gas and nitrogen gas , we did a test and we saw that within 5 seconds. it can kill bacteria in agar culture medium. another initiative of this company is that they turned the metallurgical microscope into a cell culture microscope. localization of this equipment inside the country for researchers very dear to serps. the device is almost the same as the european device, one third of the price of a dram, in terms of currency, it is very good for the country , and we presented this device to the laboratory and research center of the ministry of behdad and the ministry of science. compared to the foreign equivalent, it costs half the european price, which is very good for the country in terms of land. for more information, those interested can refer to the zistrat.iir website. afrooz islami khabarari radio in the name of. god salam, following iran's championship in the world youth weightlifting competition,