کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7147176 | 1462098 | 2014 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Monodisperse BSA-conjugated zinc oxide nanoparticles based fluorescence sensors for Cu2+ ions
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Monodisperse BSA-conjugated zinc oxide nanoparticles based fluorescence sensors for Cu2+ ions Monodisperse BSA-conjugated zinc oxide nanoparticles based fluorescence sensors for Cu2+ ions](/preview/png/7147176.png)
چکیده انگلیسی
Bovine serum albumin conjugated zinc oxide nanoparticles (BSA-ZnO) were used as selective copper ions probes by fluorescence spectroscopic technique. The results showed that the fluorescence of the BSA-ZnO nanoparticles could be quenched only by Cu2+ in physiological buffer solution. The optimum fluorescence intensity was found to be at pH 7.0 with a temperature of 25 °C. Under these optimum conditions, the detection limit of Cu2+ ions was 6.09 Ã 10â7 mol Lâ1. The effect of foreign ions on the fluorescence intensity of BSA-ZnO nanoparticles was also studied and foreign ions showed low interference response in detecting of Cu2+ ions. Moreover, the quenching was discussed to be a static quenching procedure, which was proved by quenching rate constant Kq (6.98 Ã 1012 L molâ1 sâ1).
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Sensors and Actuators B: Chemical - Volume 192, 1 March 2014, Pages 83-91
Journal: Sensors and Actuators B: Chemical - Volume 192, 1 March 2014, Pages 83-91
نویسندگان
Zhi Chen, Dudu Wu,