<p><strong>A sensitive and</strong><strong> </strong><strong>selective fluorescence sensing of bisphenol A based on magnetic Fe</strong><strong><sub>3</sub></strong><strong>O</strong><strong><sub>4</sub></strong><strong>@SiO</strong><strong><sub>2</sub></strong><strong>@QDs@MIPs nanoparticles</strong><strong></strong></p>
Online Publishing @ NISCAIR
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dc |
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Title Statement |
<p><strong>A sensitive and</strong><strong> </strong><strong>selective fluorescence sensing of bisphenol A based on magnetic Fe</strong><strong><sub>3</sub></strong><strong>O</strong><strong><sub>4</sub></strong><strong>@SiO</strong><strong><sub>2</sub></strong><strong>@QDs@MIPs nanoparticles</strong><strong></strong></p> |
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Added Entry - Uncontrolled Name |
Wang, Zhihua Zhang, Bing Zhang, Yafang Wei, Xiaolong |
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Uncontrolled Index Term |
analytical chemistry Bisphenol A; Fluorescence analysis; Mn-doped ZnS quantum dot;Molecularly imprinted polymers; Fe3O4 nanoparticles. |
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Summary, etc. |
<p>A flexible magnetic and fluorescent sensing for the recognition and detection of bisphenol A (BPA) based on a hybrid magnetic Fe<sub>3</sub>O<sub>4</sub>@silica nanoparticle@Mn:ZnSquantum dots@molecularly imprinted polymers nanoparticles (Fe<sub>3</sub>O<sub>4</sub>@SiO<sub>2</sub>@QDs@MIPs NPs) was designed. Because of the high selectivity of MIPs, the strong fluorescence property of Mn:ZnS QDs, the nice magnetism of Fe<sub>3</sub>O<sub>4</sub> and good water solubility of SiO<sub>2</sub><sub>, </sub>the Fe<sub>3</sub>O<sub>4</sub>@SiO<sub>2</sub>@QDs@MIPs NPs could detect BPA effectively in human urine. In the presence of BPA, a new compound was produced via the amino group of Fe<sub>3</sub>O<sub>4</sub>@SiO<sub>2</sub>@QDs@MIPs NPs and the hydroxyl group of BPA, the energy of the QDs would be transferred to the compound, which led to fluorescence quenching. The relative fluorescence intensity decreased linearly with the increasing of BPA concentration in the range of 50 to 700 ng/mL, the detection limit was 1.6 ng/mL. In addition, the sensor has a strongly selectivity with an imprinting factor of 8.7, distinguished selectivity was also exhibited to BPA over other possibly competing molecules. On the basis of the merits of the Fe<sub>3</sub>O<sub>4</sub>@SiO<sub>2</sub>@QDs@MIPs NPs, the sensor could be applied to detect BPA in human urine sample successfully.</p> |
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Publication, Distribution, Etc. |
Indian Journal of Chemistry -Section A (IJCA) 2020-10-06 11:19:13 |
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Electronic Location and Access |
application/pdf http://op.niscair.res.in/index.php/IJCA/article/view/28162 |
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Data Source Entry |
Indian Journal of Chemistry -Section A (IJCA); ##issue.vol## 59, ##issue.no## 7 (2020): INDIAN JOURNAL OF CHEMISTRY- SECTION A |
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Language Note |
en |
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Nonspecific Relationship Entry |
http://op.niscair.res.in/index.php/IJCA/article/download/28162/465486883 http://op.niscair.res.in/index.php/IJCA/article/download/28162/465487904 http://op.niscair.res.in/index.php/IJCA/article/download/28162/465487905 http://op.niscair.res.in/index.php/IJCA/article/download/28162/465487906 |
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