Colorimetric Sensors Based on Nanomaterials for Various Analytes Detection

The colorimetric sensor has the advantages of simple operation, good selectivity, high sensitivity, naked-eye detection, and low cost. This paper introduces the application of colorimetric sensors in various research directions, such as environmental science, material science, and nanoscience, through different working mechanisms, and compares and analyzes their advantages and disadvantages. The color change of the colorimetric sensor is used to determine the state of the solution, such as the pH value or concentration of the solution. Readers can understand the colorimetric sensing mechanism and its applications in various fields by reading this article and promoting readers' development in various fields.