کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7144052 | 1462062 | 2016 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Turn-on sensor for quantification and imaging of acetamiprid residues based on quantum dots functionalized with aptamer
ترجمه فارسی عنوان
سنسور روشن برای اندازه گیری و تصویربرداری باقی مانده های استامایپریید بر اساس نقاط کوانتومی که با آپتامر کار می کنند
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کلمات کلیدی
نقاط کوانتومی، استامایپید، آپتامر، کوانتومی، تصویربرداری،
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
چکیده انگلیسی
In this paper, a novel turn-on sensor was constructed for quantification and imaging of acetamiprid. Acetamiprid aptamer-modified ZnS:Mn probe (ZnS:Mn-Aptamer) was obtained by conjugating ZnS:Mn QDs with acetamiprid binding aptamer. The fluorescence of the probe was turn off by multi-walled carbon nanotubes (MWCNTs) based on fluorescence resonance energy transfer (FRET) between ZnS:Mn-Aptamer and MWCNTs. After acetamiprid was introduced, the fluorescence was turn on because ZnS:Mn-Aptamer specifically binded with acetamiprid. Based on the above-mentioned principle, the quantitative detection and imaging of acetamiprid in real samples were achieved. The linear equation could be described as F/F0Â =Â 1.101Â +Â 0.0312CA (CA represented the concentration of acetamiprid, nM) in a linear range of 0-150Â nM with a detection limit of 0.7Â nM. The results suggested this method had remarkable sensitivity, selectivity, and was very simple without complex operation. Meanwhile, this novel turn-on sensor has the potential of in situ visual determination for pesticide residues in complex system.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Sensors and Actuators B: Chemical - Volume 229, 28 June 2016, Pages 100-109
Journal: Sensors and Actuators B: Chemical - Volume 229, 28 June 2016, Pages 100-109
نویسندگان
Bixia Lin, Ying Yu, Ruoying Li, Yujuan Cao, Manli Guo,