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|Title:||A colorimetric and fluorimetric three-input inverted enabled or logic array by self-assembly of a rhodamine probe in micelles|
|Authors:||Caruana, Maria Victoria|
Camilleri Fava, Matthew
Magri, David C.
Micelles -- Research
Molecular biology -- Computer programs
|Publisher:||Wiley-VCH Verlag GmbH & Co. KGaA|
|Citation:||Caruana, M. V., Camilleri Fava, M., & Magri, D. C. (2015). A colorimetric and fluorimetric three-input inverted enabled or logic array by self-assembly of a rhodamine probe in micelles. Asian Journal of Organic Chemistry, 4(3), 239-243.|
|Abstract:||A rhodamine B derivative appended with a hexyl chain has been synthesized as a colorimetric and fluorimetric probe and studied in three different micelles, sodium dodecyl sulfate (SDS), Triton X-100, and cetyltrimethylammonium chloride (CTAC) in 1:4 (v/v) methanol/water solutions. UV/vis and fluorescence spectroscopic studies suggest that the hydrophobic hexyl chain anchors the probe in the vicinity of the water/membrane interface rather than in the bulk solution. A significant pKa shift of 4.5 units is observed in CTAC and Triton X-100 relative to aqueous methanol solution, whereas no significant difference is observed in SDS. In CTAC and basic solution a nine-fold decrease in the fluorescence intensity and absorbance are observed. These observations are rationalized by a spiro-ring-closing mechanism via lactam formation, which disrupts the conjugated xanthene chromophore. A three-input inverted enabled OR (iEnOR) logic circuit is demonstrated in absorbance and fluorescence mode with CTAC, Triton X-100 and alkali as the inputs via supramolecular assembly|
|Appears in Collections:||Scholarly Works - FacSciChe|
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