An ultra-sensitive colorimetric sensor based on smartphone for pyrophosphate determination
文献类型：期刊论文
| 作者 | Dong, Chen; Ma, Xuehua; Qiu, Nianxiang; Zhang, Yujie; Wu, Aiguo |
| 刊名 | SENSORS AND ACTUATORS B-CHEMICAL
 |
| 出版日期 | 2021 |
| 卷号 | 329 |
| 关键词 | INORGANIC PYROPHOSPHATE METAL-IONS FLUORESCENT GOLD NANOPARTICLES CONVERSION ASSAY ATP |
| 英文摘要 | Monitoring pyrophosphate (PPi) in food is still a challenge due to lack of ultrasensitive, rapid, and selective analysis techniques. Herein, a smartphone-based colorimetric sensor based on anti-aggregation of polyvinylpyrrolidone (PVP) modified silver nanoparticles caused by Pb2+ is reported, which lead to a color change from blue to yellow for accurate and reliable detection of PPi in water and canned meat. The smartphone-based colorimetric sensor exhibits high sensitivity with detection limits of 1.0 mu M by naked-eyes and 0.2 mu M by smartphone analysis. Confirmatory analysis indicates that the proposed smartphone-based colorimetric sensor exhibits feasibility and real time performance for PPi detection in real food samples. The first-principles calculations at the PBE/DNP + level indicate that the Gibbs free energy (Delta G) of the interaction between PPi and Pb2+ is much higher than that between PVP and Pb2+, which effectively verified the anti-aggregation detection mechanism. This study provides a meaningful design strategy for the development of novel colorimetric sensors in the future. |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/22196]  |
| 专题 | 中国科学院宁波材料技术与工程研究所 2021专题_期刊论文 |
| 作者单位 | 1.Wu, AG (corresponding author), Chinese Acad Sci, Zhejiang Engn Res Ctr Biomed Mat, Ningbo Inst Mat Technol & Engn, Ningbo 315201, Zhejiang, Peoples R China. 2.Wu, AG (corresponding author), Chinese Acad Sci, Cixi Inst Biomed Engn, Key Lab Magnet Mat & Devices, Ningbo 315201, Zhejiang, Peoples R China. 3.Zhang, YJ |
| 推荐引用方式 GB/T 7714 | Dong, Chen,Ma, Xuehua,Qiu, Nianxiang,et al. An ultra-sensitive colorimetric sensor based on smartphone for pyrophosphate determination[J]. SENSORS AND ACTUATORS B-CHEMICAL,2021,329. |
| APA | Dong, Chen,Ma, Xuehua,Qiu, Nianxiang,Zhang, Yujie,&Wu, Aiguo.(2021).An ultra-sensitive colorimetric sensor based on smartphone for pyrophosphate determination.SENSORS AND ACTUATORS B-CHEMICAL,329. |
| MLA | Dong, Chen,et al."An ultra-sensitive colorimetric sensor based on smartphone for pyrophosphate determination".SENSORS AND ACTUATORS B-CHEMICAL 329(2021). |
入库方式： OAI收割
来源：宁波材料技术与工程研究所
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