2015
DOI: 10.1016/j.saa.2014.07.056
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An ultra sensitive fluorescent nanosensor for detection of ionic copper

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Cited by 39 publications
(15 citation statements)
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“…1,2 Many Cu 2+ assays have been developed based on organic fluorescence 3,4 , chromogenic sensors 5,6 , quantum dots 7-9 , nanoparticles 10 , and atomic absorption spectroscopy 11,12 . However, many of these methods require sophisticated equipment, are time consuming, or have low sensitivity. Excess copper ions in the air, water and soil can also cause heavy metal contamination via food chain and biological aggregation, which can seriously affect wildlife and ecological systems.…”
Section: Introductionmentioning
confidence: 99%
“…1,2 Many Cu 2+ assays have been developed based on organic fluorescence 3,4 , chromogenic sensors 5,6 , quantum dots 7-9 , nanoparticles 10 , and atomic absorption spectroscopy 11,12 . However, many of these methods require sophisticated equipment, are time consuming, or have low sensitivity. Excess copper ions in the air, water and soil can also cause heavy metal contamination via food chain and biological aggregation, which can seriously affect wildlife and ecological systems.…”
Section: Introductionmentioning
confidence: 99%
“…This observation is only valid for the ethyl cellulose based matrix. When embedded in polymethyl methacrylate, which is less polar with respect to the EC, both in the absence and presence of AgNPs, we have been able to fabricate continuous electrospun fibers[30,31]. These results can be concluded as an evidence of the dependency of formation of porous structures on intrinsic polarity of the EC.…”
mentioning
confidence: 65%
“…Also, visual color changes of RECM in the presence of Cu 2+ and other competitive cations are shown in Figure 3 (inset). To date, various Cu 2+ -rhodamine-based chemosensors were developed which involved some negligible interferences of competitive cations [24][25][26][27]. On the periodic table of elements, the three transition cations Cu 2+ , Zn 2+ and Ni 2+ lie in the same period and are next to each other [26].…”
Section: Selectivitymentioning
confidence: 99%
“…As shown in Figure 4a To that end, the emission intensity of RECM without Cu 2+ was measured by 10 times and the standard deviation of blank measurements was determined. The LOD of RECM was found to be 0.21 µ M based on the definition by IUPAC ( = 3 ⁄ , where is the standard deviation of blank measurements and is the slope between intensity versus sample concentration) [30] which is less To date, various Cu 2+ -rhodamine-based chemosensors were developed which involved some negligible interferences of competitive cations [24][25][26][27]. On the periodic table of elements, the three transition cations Cu 2+ , Zn 2+ and Ni 2+ lie in the same period and are next to each other [26].…”
Section: Optical Sensing Propertiesmentioning
confidence: 99%
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