| 초록 |
Because they have been designed to undergo colorimetric changes that are dependent on the polarity of solvents, a majority of conventional solvatochromic molecule based sensor systems inevitably display broad overlaps in their absorption and emission bands. As a result, colorimetric differentiation of solvents of similar polarity has been extremely difficult. Herein, we present a tailor made colorimetric and fluorescence “Turn-On” type solvatochromic sensor that enables facile identification of a specific solvent. The unprecedented sensor system displays a colorimetric transition only when a thin protective layer, which protects the solvatochromic materials, is destroyed/disrupted by a specific solvent. In addition, the approach was employed to construct a solvatochromic molecular AND logic gate and sequence selective logic gate. The new strategy should open new avenues for the development of novel solvatochromic sensors. |
