A Supramolecular Microfluidic Optical Chemosensor
| Autor: | Christina M. Rudzinski, Albert M. Young, Daniel G. Nocera |
|---|---|
| Rok vydání: | 2002 |
| Předmět: |
Biphenyl
chemistry.chemical_classification Cyclodextrins Optics and Photonics Cyclodextrin Microfluidics Analytical chemistry Supramolecular chemistry Molecular Probe Techniques Nanotechnology General Chemistry Serpentine channel Biochemistry Catalysis Fluorescence spectroscopy Chemical sensor chemistry.chemical_compound Colloid and Surface Chemistry chemistry Organometallic Compounds Molecule Terbium |
| Zdroj: | Journal of the American Chemical Society. 124:1723-1727 |
| ISSN: | 1520-5126 0002-7863 |
| DOI: | 10.1021/ja010176g |
| Popis: | A supramolecular microfluidic optical chemosensor (muFOC) has been fabricated. A serpentine channel has been patterned with a sol-gel film that incorporates a cyclodextrin supramolecule modified with a Tb(3+) macrocycle. Bright emission from the Tb(3+) ion is observed upon exposure of the (mu)FOC to biphenyl in aqueous solution. The signal transduction mechanism was elucidated by undertaking steady-state and time-resolved spectroscopic measurements directly on the optical chemosensor patterned within the microfluidic network. The presence of biphenyl in the cyclodextrin receptor site triggers Tb(3+) emission by an absorption-energy transfer-emission process. These results demonstrate that the intricate signal transduction mechanisms of supramolecular optical chemosensors are successfully preserved in microfluidic environments. |
| Databáze: | OpenAIRE |
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