کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7141381 | 1462031 | 2018 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Enhancing Sensitivity of Novel Hg2+ Fluorescent Sensor via Plasmonic Enhancement of Silver Nanoparticles
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Contamination of Hg2+ in an aqueous environment is dangerous for all living species including human. In this work, a new rhodamine B derivative fluorescent sensor (sensor RBS) for Hg2+ detection was successfully synthesized. In addition, the synthesized yellow silver nanoparticles (Y-AgNPs) were incorporated into sensor RBS to obtain sensor RBSÂ +Â Y-AgNPs. The sensitivity studies for Hg2+ detection of the sensors showed that the Hg2+ detection limit of sensor RBS and sensor RBSÂ +Â Y-AgNPs were 12.9Â ppb and 0.7Â ppb, respectively. The result indicated that incorporation of Y-AgNPs into sensor RBS led to significantly lower Hg2+ detection limit of sensor RBSÂ +Â Y-AgNPs, which could be attributed to plasmonic enhancement of Y-AgNPs. Furthermore, the selectivity studies of the sensors showed that sensor RBS and sensor RBSÂ +Â Y-AgNPs were highly selective toward Hg2+ against interference ions. We also showed that sensor RBSÂ +Â Y-AgNPs could be used to detect Hg2+ in real samples. Importantly, we have demonstrated that utilization of plasmonic enhancement could improve the sensitivity of the Hg2+ fluorescent sensor, which could pave the way for development of portable fluorescent sensor for the on-site Hg2+ detection.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Sensors and Actuators B: Chemical - Volume 258, 1 April 2018, Pages 694-703
Journal: Sensors and Actuators B: Chemical - Volume 258, 1 April 2018, Pages 694-703
نویسندگان
Sasiwimon Kraithong, Jitnapa Sirirak, Kittibandid Soisuwan, Nantanit Wanichacheva, Pattanawit Swanglap,