A Hg2+ fluorescent chemosensor without interference from anions and Hg2+-imaging in living cells

Fan, Jiangli; Guo, Kexin; Peng, Xiaojun; Du, Jianjun; Wang, Jingyun; Sun, Shiguo; Li, Honglin

doi:10.1016/j.snb.2009.08.002

“…Analysis of the fluorescence titration data by a four‐parameter logistic function yielded an acceptable fit, determining the limit of detection (LOD, 3σ‐method) to 3 ppb for I at around 2 μ m and Hg II in aqueous solution. Our method is thus much more sensitive than other approaches relying on BODIPY derivatives and achieves an outstanding discrimination against Ag I , Ni II , and Cu II in water . Fluorescence lifetime measurements of I and I –Hg II in MeCN and water supported the steady‐state findings.…”

Section: Resultssupporting

confidence: 58%

Mix‐&‐Read Determination of Mercury(II) at Trace Levels with Hybrid Mesoporous Silica Materials Incorporating Fluorescent Probes by a Simple Mix‐&‐Load Technique

Climent

¹

,

Hecht

²

,

Witthuhn

³

et al. 2018

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The synthesis, characterization, and application of mesoporous materials containing boron–dipyrromethene (BODIPY) moieties that allow the sensitive and selective detection of HgII in aqueous environments by fluorescence enhancement is reported. For this purpose, BODIPY dye I containing a thia‐aza crown ether receptor as the fluorescent probe for the detection of HgII in aqueous environments is encapsulated into mesoporous materials to avoid self‐quenching or aggregation in water. Determination of HgII is accomplished within a few seconds with high selectivity and sensitivity, reaching a limit of detection of 12 ppt. The determination of trace amounts of HgII in natural waters and in fish extracts is demonstrated by using our sensing material. The incorporation of the material into several μ‐PAD strips yields a portable, cheap, quick, and easy‐to‐handle tool for trace HgII analysis in water.

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“…Analysis of the fluorescencet itrationd ata by af our-parameter logistic functiony ieldeda na cceptablef it, determining the limit of detection (LOD, 3s-method) to 3ppb for I at around 2 mm and Hg II in aqueous solution. Our method is thus much more sensitive than other approaches relying on BODIPY derivatives [63,64] and achieves an outstanding discriminationa gainst Ag I ,N i II ,a nd Cu II in water. [65] Fluorescence lifetimem easurements of I and I-Hg II in MeCN and water supported the steady-state findings.I na ccordance with more than one emitting speciesa nd ap otentialg round-state species diversity of crown ethers, especially in water, [59] the decays of I were fitted to am ultiexponential decay (see Section S7).…”

Section: Analytical Response Of Imentioning

confidence: 90%

Mix‐&‐Read Determination of Mercury(II) at Trace Levels with Hybrid Mesoporous Silica Materials Incorporating Fluorescent Probes by a Simple Mix‐&‐Load Technique

Climent

¹

,

Hecht

²

,

Witthuhn

³

et al. 2018

ChemistryOpen

2

0

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The synthesis, characterization, and application of mesoporous materials containing boron–dipyrromethene (BODIPY) moieties that allow the sensitive and selective detection of HgII in aqueous environments by fluorescence enhancement is reported. For this purpose, BODIPY dye I containing a thia‐aza crown ether receptor as the fluorescent probe for the detection of HgII in aqueous environments is encapsulated into mesoporous materials to avoid self‐quenching or aggregation in water. Determination of HgII is accomplished within a few seconds with high selectivity and sensitivity, reaching a limit of detection of 12 ppt. The determination of trace amounts of HgII in natural waters and in fish extracts is demonstrated by using our sensing material. The incorporation of the material into several μ‐PAD strips yields a portable, cheap, quick, and easy‐to‐handle tool for trace HgII analysis in water.

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“…The incremental increase of Al 3+ concentration in the environment is also detrimental to growing plants . Therefore, the design of highly selective sensor for Al 3+ with low detection limit, has become increasingly important in environmental, medicinal and clinical chemistry …”

Section: Introductionmentioning

confidence: 99%

Development of Acridine‐Derived “Turn On” Al³⁺ Fluorescent Sensors and Their Imaging in Living Cells

Wang

¹

,

Fu

²

,

Yao

³

et al. 2018

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Two novel highly selective fluorescent sensors L‐1 and L‐2 for the determination of Al3+ ion were synthesized and characterized. The sensors acridine‐4,5‐diylbismethyl(bis(oxy))bis(2,1‐phenylene))bis‐(methylene))bis(azanediyl))bis(3‐phenylpropan‐1‐ol) (L‐1) and 2,2′‐acridine‐4,5‐diylbis(methylene(bis(oxy))bis(2,1‐phenylene))bis‐(methylene))bis(azanediyl))bis(propan‐1‐ol) (L‐2) showed “turn on” fluorescence response in the presence of Al3+ ion in DMSO/tris‐HCl (1:1, v:v, pH=7.2) buffer solution. Other cations viz. Li+, Na+, K+, Mg2+, Ca2+, Fe2+, Co2+, Ni2+, Cd2+, Cu2+, Zn2+, Mn2+, Ba2+, Pb2+, Hg2+, Fe3+ and Eu3+ ions showed no appreciable change in fluorescence spectrum. The detection limits of L‐1 and L‐2 for Al3+ ion were at the parts per billion level. In addition, possible utilization of sensors as bio‐imaging fluorescent sensors to detect Al3+ in human cervical HeLa cells was also investigated by confocal fluorescence microscopy.

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A Hg2+ fluorescent chemosensor without interference from anions and Hg2+-imaging in living cells

Cited by 70 publications

References 41 publications

Mix‐&‐Read Determination of Mercury(II) at Trace Levels with Hybrid Mesoporous Silica Materials Incorporating Fluorescent Probes by a Simple Mix‐&‐Load Technique

Mix‐&‐Read Determination of Mercury(II) at Trace Levels with Hybrid Mesoporous Silica Materials Incorporating Fluorescent Probes by a Simple Mix‐&‐Load Technique

Mix‐&‐Read Determination of Mercury(II) at Trace Levels with Hybrid Mesoporous Silica Materials Incorporating Fluorescent Probes by a Simple Mix‐&‐Load Technique

Development of Acridine‐Derived “Turn On” Al³⁺ Fluorescent Sensors and Their Imaging in Living Cells

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A Hg2+ fluorescent chemosensor without interference from anions and Hg2+-imaging in living cells

Cited by 70 publications

References 41 publications

Mix‐&‐Read Determination of Mercury(II) at Trace Levels with Hybrid Mesoporous Silica Materials Incorporating Fluorescent Probes by a Simple Mix‐&‐Load Technique

Mix‐&‐Read Determination of Mercury(II) at Trace Levels with Hybrid Mesoporous Silica Materials Incorporating Fluorescent Probes by a Simple Mix‐&‐Load Technique

Mix‐&‐Read Determination of Mercury(II) at Trace Levels with Hybrid Mesoporous Silica Materials Incorporating Fluorescent Probes by a Simple Mix‐&‐Load Technique

Development of Acridine‐Derived “Turn On” Al3+ Fluorescent Sensors and Their Imaging in Living Cells

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Development of Acridine‐Derived “Turn On” Al³⁺ Fluorescent Sensors and Their Imaging in Living Cells