초록 |
Here we report a smartphone-based colorimetric detection of inverse opal photonic hydrogel sensor which causes the shift of diffraction wavelength following reversible changes in physical dimensions. Identifying color changes is basically an eye, but it may have tendency of leading to uncertain results. On the other hand, the spectrophotometer is commonly used as precision analysis equipment in traditional colorimetric detection, but it is bulky, expensive and time-consuming. Thus, a smartphone-based mobile sensing approaches can be a great alternative over conventional methods by leveraging its built-in functions. The advantages of various analyte-sensitive and reversible hydrogel-based colorimetric sensor and the portable smartphone enable real-time monitoring platforms for many applications including medical diagnosis. |