A quantum dot-based ratiometric pH sensor.
نویسندگان
چکیده
A quantum dot-based ratiometric pH sensor that responds to the pH range 6-8 was developed using FITC (fluorescein isothiocyanate) conjugated CdSe/CdZnS nanocrystals.
منابع مشابه
CdSe/ZnS quantum dots conjugated with a fluorescein derivative: a FRET-based pH sensor for physiological alkaline conditions.
Dual pH-dependent fluorescence peaks from a semiconductor quantum dot (QD) and a pH-dependent fluorescent dye can be measured by irradiating with a single wavelength light, and the pH can be estimated from the ratio of the fluorescent intensity of the two peaks. In this work, ratiometric pH sensing was achieved in an aqueous environment by a fluorescent CdSe/ZnS QD appended with a pH-sensitive ...
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عنوان ژورنال:
- Chemical communications
دوره 46 14 شماره
صفحات -
تاریخ انتشار 2010