| abstract |
A method of making a sensor, comprising the steps of: arranging a high-molecular monomer, a cross-linking agent, a photoinitiator and a monovalent silver ion salt in water to obtain a mixed solution; placing the mixed solution into a mold, wherein the mold is provided with a first inner surface and a second inner surface which are opposite, and the surface roughness of the first inner surface is different from that of the second inner surface; irradiating the mixed solution placed in the mold by using ultraviolet light to obtain a hydrogel composite, wherein the hydrogel composite is provided with a first surface and a second surface which are opposite, and the surface roughness of the first surface is different from that of the second surface; separating the hydrogel composite from the mold; and contacting the first surface with a first electrode and contacting the second surface with a second electrode. The invention also relates to a sensor prepared by the preparation method and a using method of the sensor. |