A protective layer approach to solvatochromic sensors
- Title
- A protective layer approach to solvatochromic sensors
- Author
- 김종만
- Keywords
- MOLECULAR LOGIC; CONJUGATED POLYMER; POLYDIACETYLENE; CHEMOSENSORS; CHROMOPHORES; OPERATIONS; CRYSTALS; PLATFORM; DISPLAY; CARBON
- Issue Date
- 2013-09
- Publisher
- NATURE PUBLISHING GROUP
- Citation
- Nature communications, 2013, 4, 2461- 9p.
- Abstract
- As they have been designed to undergo colorimetric changes that are dependent on the polarity of solvents, the 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. Here we present a tailor-made colorimetric and fluorescence turn-on type solvatochromic sensor that enables facile identification of a specific solvent. The sensor system displays a colorimetric transition only when a thin protective layer, which protects the solvatochromic materials, is destroyed or disrupted by a specific solvent. The versatility of the strategy is demonstrated by designing a sensor that differentiates chloroform and dichloromethane colorimetrically and one that performs sequence selective colorimetric sensing. In addition, the approach is employed to construct a solvatochromic molecular AND logic gate. The new strategy could open new avenues for the development of novel solvatochromic sensors.
- URI
- https://www.nature.com/articles/ncomms3461http://hdl.handle.net/20.500.11754/50399
- ISSN
- 2041-1723
- DOI
- 10.1038/ncomms3461
- Appears in Collections:
- COLLEGE OF ENGINEERING[S](공과대학) > CHEMICAL ENGINEERING(화학공학과) > Articles
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