کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5031338 1470933 2018 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Development and application of a novel fluorescent nanosensor based on FeSe quantum dots embedded silica molecularly imprinted polymer for the rapid optosensing of cyfluthrin
ترجمه فارسی عنوان
توسعه و استفاده از یک نانوسنسور فلورسنت جدید بر اساس نقاط کوانتومی FeSe، پلیمر مشتق شده از مولکولی سیلیکا را برای optoensing سریع سیافوتارین
کلمات کلیدی
نقطه کوانتوم FeSe؛ مولکولی وارد شده؛ سیفلتورین؛ تعیین
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
چکیده انگلیسی


- Specific MIP-FeSe-QDs based on FeSe-QDs with selective FL quenching to CYF was developed.
- The selective fluorescence quenching mechanism of MIP-FeSe-QDs were elucidated.
- The optosensing sensor method for sensitive detection of CYF in fish and sediment were developed.

A novel molecularly imprinted silica layer appended to FeSe quantum dots (MIP-FeSe-QDs) was fabricated and utilized as a recognition element to develop a selective and sensitive fluorescent nanosensor for cyfluthrin (CYF) determination. The MIP-FeSe-QDs were characterized by fluorescence spectrometry, scanning electron microscopy, transmission electron microscopy, and Fourier transform infrared spectroscopy. Excellent selectivity and high sensitivity of MIP-FeSe-QDs to CYF molecules were observed based on the fluorescence quenching of FeSe-QDs. Under optimal conditions, a good linear relationship was found between fluorescence quenching effect and increased CYF concentration within 0.010-0.20 mg/L, with a correlation coefficient of 0.9911. The practicality of the developed sensor method for CYF detection in fish and sediment samples was further validated. Good recoveries ranging from 88.0% to 113.9% with<6.8% relative standard deviations were obtained. The detection limits of CYF in sediment and fish samples were 1.3 and 1.0 µg/kg, respectively. This study established a novel, rapid fluorescent nanosensor detection method based on MIP-QDs for successfully analyzing CYF in fish and sediment samples.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Biosensors and Bioelectronics - Volume 99, 15 January 2018, Pages 268-273
نویسندگان
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