کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7142103 | 1462036 | 2018 | 23 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A plasmonic nano-sensor for the fast detection of Ag+ based on synergistic coordination-inspired gold nanoparticle
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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: A plasmonic nano-sensor for the fast detection of Ag+ based on synergistic coordination-inspired gold nanoparticle A plasmonic nano-sensor for the fast detection of Ag+ based on synergistic coordination-inspired gold nanoparticle](/preview/png/7142103.png)
چکیده انگلیسی
Silver is one of most important heavy metals, which affects the environment and organism significantly along with its widespread applications. An interesting gold nanoparticles (AuNPs)-based system, in this work, was fabricated using the adenosine and creatinine for the colorimetric recognition of the Ag+ via a red-to-blue color change. A synergistic coordination of these two biomolecules with Ag+ on AuNPs' surface supplied an excellent selectivity than examples by a single ligand-modified AuNPs in literatures. It realized a qualitative Ag+ recognition by naked eyes in aqueous media, as well as a quantitative determination by the UV-vis spectrometer over a range of 0.1-0.9 μM, covering the Ag+ standard in drinking waters (0.46 μM, US Environmental Protection Agency). This system is not only convenient but also very sensitive with a limit detection of 7.3 nM. This platform is applicable for the Ag+ recognition in mimic pollution samples with a good repeatability and relative standard deviation.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Sensors and Actuators B: Chemical - Volume 255, Part 1, February 2018, Pages 808-813
Journal: Sensors and Actuators B: Chemical - Volume 255, Part 1, February 2018, Pages 808-813
نویسندگان
Jianjun Du, Hong Du, Haoying Ge, Jiangli Fan, Xiaojun Peng,