| 초록 |
Although developing colorimetric sensors with easy readout and intuitive use is highly desired, many conventional techniques using coloration as a detecting method rely on spectroscopic instrument due to their ambiguous color difference or shallow detecting angle. Here, we develop a transparency-switching sensing platform built by maximizing mechanical stress between the polymer matrix and inorganic hollow particles. This sensing platform generates three distinctive transparency signals; transparent, semi-transparent, and opaque, depending on liquid diffusion dynamics in the polymer medium. Such liquid adaptive transparency signals have advantages of angle-independency and color-uniformity on a macroscopic area, achieving successful naked-eye detection of a variety of liquids. Furthermore, by integrating these transparency-switching mediums into an array, the sensing platform can distinguish and quantify the composition of even ternary mixtures. |
