کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7234219 | 1470982 | 2013 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A novel fluorescence-quenching immunochromatographic sensor for detection of the heavy metal chromium
ترجمه فارسی عنوان
یک سنسور ایمونو کروماتوگرافی جدید فلورسانس خنک کننده برای تشخیص کروم فلزات سنگین
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کلمات کلیدی
سنسور ایمونوکروماتوگرافی، خنک سازی فلورسنت، کروم، کم تحرک، ایمنی رقابتی،
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
چکیده انگلیسی
A novel fluorescence quenching immunochromatographic sensor (ICS) was developed for detecting chromium (Cr3+) within 15Â min utilizing the fluorescence quenching function of gold nanoparticles (Au-NPs). The sensor performed with a positive readout. When the low concentrations of Cr3+ samples were applied, detection signals of the test line (T line) were quenched, whereas when higher concentration Cr3+ samples (1.56Â ng/mL) were applied, the detection signal of the T line appeared. The detection signal intensity of the T line increased with increasing concentrations of Cr3+. The low detection limit of developed fluorescence quenching ICS was 1.56Â ng/mL. The fluorescence quenching ICS has a linear range of detection of Cr3+ comprising between 6.25Â ng/mL to 800Â ng/mL. The recoveries of the fluorescence quenching ICS to detect Cr3+ in tap water ranged from 94.7% to 101.7%. This result indicated that the developed sensor gave higher sensitivity and reliable reproducibility. It could provide a general detection method for small analyte in water samples.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Biosensors and Bioelectronics - Volume 49, 15 November 2013, Pages 399-402
Journal: Biosensors and Bioelectronics - Volume 49, 15 November 2013, Pages 399-402
نویسندگان
QiangQiang Fu, Yong Tang, CongYing Shi, XiaoLi Zhang, JunJian Xiang, Xi Liu,