Nanoliter-scale, regenerable ion sensor: sensing with a surface functionalized microstructured optical fibre?
RSC Advances Pub Date: 2013-04-19 DOI: 10.1039/C3RA40321A
Abstract
The first nanoliter-scale regenerable ion sensor based on a microstructured optical fibre (MOF) is reported. The air holes of the MOF are functionalized with a monoazacrown bearing spiropyran to give a switchable sensor that detects lithium ions down to 100 nM in nanoliter-scale volumes. Ion binding is turned on and off on upon irradiation with light, with the sensor being unaffected by multiple rounds of photoswitching. Unbound ions are flushed from the fibre in the ‘off’ state to allow the sensor to be reused. The integration of an
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Journal Name：RSC Advances
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CAS no.: 89640-58-4
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