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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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Rhodamine B Hydrazide as a novel fluorescent and colorimetric probe exhibiting remarkably selective fluorescence enhancement toward Hg<sup>2+</sup> ion over other 16 metal ions is herein introduced. The probe reacts with Hg<sup>2+</sup> ion followed by its spirolactam ring-opening to give a remarkable enhancement of absorption maximum at 550 nm as well as an enhanced fluorescence intensity at 580 nm in aqueous media. Upon titration with Hg<sup>2+</sup> ion in various concentration of 10~200 uM, we found that the probe shows a marked color change from colorless to pink, enabling naked-eye detection toward mercury ion. In addition, in the presence of Hg<sup>2+</sup> ion, the probe gave rise to change from non-florescence to strong orange fluorescence (Off-On) with a good linearity of R<sup>2</sup>=0.97. This preliminary results demonstrate that the fluorescent chemosensor we herein introduced can open a new strategy for marked selective and sensitive detection of mercury ions in contaminated soil containing various metal ions.
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참고문헌 (8)
참고문헌 신청
Cui, X. / 2014 / Study on the construction and performance of a Hg(II)-sensing system having an “off–on”probe derived from rhodamine and an up-conversion excitation core / J. Lumin 145:539~546
Darbha, G.K. / 2007 / Gold nanoparticlebased miniaturized nanomaterial surface energy transfer probe for rapid and ultrasensitive detection of mercury in soil, water, and fish / Acs Nano 1(3):208~214
Dujols, V. / 1997 / A long-wavelength fluorescent chemodosimeter selective for Cu (II) ion in water / J. Am. Chem. Soc 119(31):7386~7387
Long, F. / 2013 / Rapid on-site/in-situ detection of heavy metal ions in environmental water using a structure-switching DNA optical biosensor / Sci. Rep :3
Ministry of Environment (MOE) / 2009 / Soil conservation basic Plan (#11-1480000-001048-01)
Darbha, G.K. / 2007 / Gold nanoparticlebased miniaturized nanomaterial surface energy transfer probe for rapid and ultrasensitive detection of mercury in soil, water, and fish / Acs Nano 1(3):208~214
Dujols, V. / 1997 / A long-wavelength fluorescent chemodosimeter selective for Cu (II) ion in water / J. Am. Chem. Soc 119(31):7386~7387
Long, F. / 2013 / Rapid on-site/in-situ detection of heavy metal ions in environmental water using a structure-switching DNA optical biosensor / Sci. Rep :3
Ministry of Environment (MOE) / 2009 / Soil conservation basic Plan (#11-1480000-001048-01)
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