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A highly selective, colorimetric, and environment-sensitive optical potassium ion sensor
Song, Guangjie; Sun, Ruofan; Du, Jiqing; Chen, Meiwan; Tian, Yanqing
2017-05-21
Source PublicationCHEMICAL COMMUNICATIONS
ISSN1359-7345
Volume53Issue:41Pages:5602-5605
AbstractPotassium ions (K+) play vital roles in many biological processes and thus highly selective sensors for K+ are critical for disease diagnosis and health monitoring. Herein, we report a colorimetric K+ sensor (KS7) in which a hemicyanine dye was used as a fluorophore and phenylaza-[18] crown-6 lariat ether (ACLE) was utilized as a K+ ligand. The maximum absorption peak of KS7 shifted hypsochromically by 77 nm (from 515 to 438 nm) with an isosbestic point at 452 nm upon the addition of K+ to its aqueous solution accompanied by a color change from red to yellow. This sensor exhibited a linear response range to K+ from 1 to 200 mM, indicating its wide detection range for cellular, urinary, and environmental potassium ions. Further, this sensor is solvent-sensitive, implying its environmental sensitivity. For the demonstration of its applications, we prepared filter paper-based K+ test strips, which were used to detect K+ in urine conveniently.
DOI10.1039/c7cc00598a
URLView the original
Indexed BySCI ; IC
Language英语
WOS Research AreaChemistry
WOS SubjectChemistry, Multidisciplinary
WOS IDWOS:000401638600003
PublisherROYAL SOC CHEMISTRY
The Source to ArticleWOS
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Citation statistics
Cited Times [WOS]:16   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionInstitute of Chinese Medical Sciences
Recommended Citation
GB/T 7714
Song, Guangjie,Sun, Ruofan,Du, Jiqing,et al. A highly selective, colorimetric, and environment-sensitive optical potassium ion sensor[J]. CHEMICAL COMMUNICATIONS,2017,53(41):5602-5605.
APA Song, Guangjie,Sun, Ruofan,Du, Jiqing,Chen, Meiwan,&Tian, Yanqing.(2017).A highly selective, colorimetric, and environment-sensitive optical potassium ion sensor.CHEMICAL COMMUNICATIONS,53(41),5602-5605.
MLA Song, Guangjie,et al."A highly selective, colorimetric, and environment-sensitive optical potassium ion sensor".CHEMICAL COMMUNICATIONS 53.41(2017):5602-5605.
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