Sensitive and selective fluorescence OFF-ON-OFF sensor for cascade detection of Ga3+ cation and I− anion based on pyrenesulfonamide-functionalized inorganic/organic hybrid nanoparticles
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- 作者：Ashwani KumarAuthor Vitae ; Ju-Young LeeAuthor Vitae ; Hong-Seok Kim ; kimhs053@gmail.com" class="auth_mail" title="E-mail the corresponding author ; kimhs@knu.ac.kr" class="auth_mail" title="E-mail the corresponding authorAuthor Vitae
- 关键词：Fe3O4@SiO2 nanoparticle ; Pyrene monomer emission ; Gallium(III) ; Iodide anion ; OFF-ON-OFF
- 刊名：Sensors & Actuators: B. Chemical
- 出版年：2017
- 出版时间：February 2017
- 年：2017
- 卷：239
- 期：Complete
- 页码：85-93
- 全文大小：3782 K
文摘
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Inorganic/organic hybrid nanoparticles 3 were synthesized.
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The pyrenesulfonamide-functionalized nanoparticles 3 were used for sensing Ga3+.
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Ga3+ ions “switched on” the monomer emission of probe 3.
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In situ prepared 3-Ga3+ complex detected I− ions selectively.
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Probe 3 showed a LOD of 100 nM for Ga3+ in acetonitrile.