| abstract |
A method for measuring bilirubin concentration in a sample includes preparing a sensing element, where the sensing element may include a plurality of carbon dots, adding the sample to the sensing element, where the sample may include a plurality of bilirubin molecules, obtaining a first grayscale image of the sensing element under ultra-violate (UV) irradiation, irradiating visible light with a wavelength between 470 nm and 490 nm on the sensing element, obtaining a second grayscale image of the sensing element under ultra-violate (UV) irradiation, calculating a light intensity difference by calculating a difference between a first average light intensity of the first grayscale image and a second average light intensity of the second image, and determining the bilirubin concentration based on a correlation between the bilirubin concentration and the light intensity difference. |