Abstract
New rhodamine derivatives bearing binaphthyl group were synthesized as selective fluorescent and colorimetric sensors for Cu2+. Highly selective "off-on" type fluorescent changes were observed upon the addition of Cu2+. Selective fluorescent enhancement of two rhodamine derivatives was attributed to ring opening from the spirolactam (nonfluorescent) to ring-opened amide (fluorescent). A chemo-sensing based on rhodamine derivative was further applied to the microfluidic system.
Original language | English |
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Pages (from-to) | 597-602 |
Number of pages | 6 |
Journal | Sensors and Actuators B: Chemical |
Volume | 137 |
Issue number | 2 |
DOIs | |
State | Published - 2 Apr 2009 |
Externally published | Yes |
Keywords
- Binaphthyl group
- Colorimetric sensor
- Copper ion sensor
- Fluorescent sensor
- Microfluidic system
- Rhodamine