Smartphone-based paper strip assay for putrescine and spermidine detection using hybrid organic–inorganic perovskite with Eu<sup>3+</sup> complex
T. T. TruongAnastro Laboratory, Institute of Basic Science, Changwon National University, Changwon 51140, Republic of KoreaBui The HuyAnastro Laboratory, Institute of Basic Science, Changwon National University, Changwon 51140, Republic of KoreaLe Thi Cam HuongAnastro Laboratory, Institute of Basic Science, Changwon National University, Changwon 51140, Republic of KoreaHai Bang TruongFaculty of Applied Technology, School of Technology, Van Lang University, Ho Chi Minh City, VietnamYong‐Ill LeeAnastro Laboratory, Institute of Basic Science, Changwon National University, Changwon 51140, Republic of Korea
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for spermidine), and a quick response time. Furthermore, a portable device based on a smartphone can be used to record the color change of the paper test strip using the prepared fluorescent materials. The fluorescence quenching mechanism of the probe is explained as dynamic quenching.
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