I took a new theme of quantum wires. According to literature data, it is possible to obtain such a nanostructures by chemical treatment. This means that the quantum wires do not have to be carried out only by lithography methods. Processing involves the metal particles deposition, which are reaction catalyst (Pd) or a mask (Ag). The etching is carried out in a limited reactive solutions based on HF and hydrogen peroxide. The first wires already created, now should be examined.