A novel fluorescent distinguished probe for Cr (VI) in aqueous solution

Zheng, Aifang; Chen, Jinlong; Wu, Guangxin; Wu, Ganlin; Zhang, Yuan Guang; Wei, Heping

doi:10.1016/j.saa.2009.06.031

Cited by 29 publications

(15 citation statements)

References 29 publications

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“…(i) Synthesis of 3,5-diaryl-4amino-1,2,4-triazole 1 via the cycloaddition reaction between substituted benzonitriles with hydrazine hydrate; (ii) Synthesis of triazole Schiff-bases derivatives (2a-d) by condensation reaction of 1 with naphthaldehyde and anthraldehyde. The target compounds were characterised by elemental analysis, 1 H NMR, 13 C NMR, IR and MS; the spectral data were in agreement with the proposed structures.…”

Section: Resultssupporting

confidence: 68%

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Synthesis and Fe³⁺ Recognition of Novel Triazole Schiff-Base Derivatives Bearing Fluorogenic Naphthalene and Anthracene Units

Wang

Zhang

et al. 2014

Journal of Chemical Research

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Section: Resultssupporting

confidence: 68%

“…[1][2][3] In this regard, metal-selective fluorescent probes have been widely exploited to detect biologically-or environmentally-relevant metal ions. [4][5][6] Very few fluorescent sensors for Fe 3+ have been reported, 7,8 so there is a need f to explore new systems that recognise Fe 3+ .…”

mentioning

confidence: 99%

Synthesis and Fe³⁺ Recognition of Novel Triazole Schiff-Base Derivatives Bearing Fluorogenic Naphthalene and Anthracene Units

Wang

Zhang

et al. 2014

Journal of Chemical Research

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“…Therefore, it seems that the most significant impact of the presence of metals in goethite formation is on the crystallinity or particle size. (Zheng et al, 2009) (Ko et al, 2006) a Me: metal; Fe 2+a probe and Me 2+bc probes were used for triple metal ion labeling, Me 2+b probes were used for dual metal ion labeling. Chemotrophic aggregates (grow on Fe 2+ , red) and phototrophic planktonic-cell (grow on H 2 , blue) susceptibility data plotted against standard reduction potential (∆E 0 ) (B) and the (pK SP ) (C).…”

Section: Influence Of Heavy Metals On Biogenic Mineralsmentioning

confidence: 99%

Binding of heavy metal ions in aggregates of microbial cells, EPS and biogenic iron minerals measured in-situ using metal- and glycoconjugates-specific fluorophores

Hao

Guo

Byrne

et al. 2016

Geochimica et Cosmochimica Acta

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Aggregates consisting of bacterial cells, extracellular polymeric substances (EPS) and Fe(III) minerals formed by Fe(II)-oxidizing bacteria are common at bulk or microscale chemical interfaces where Fe cycling occurs. The high sorption capacity and binding capacity of cells, EPS, and minerals controls the mobility and fate of heavy metals. However, it remains unclear to which of these component(s) the metals will bind in complex aggregates. To clarify this question, the present study focuses on 3D mapping of heavy metals sorbed to cells, glycoconjugates that comprise the majority of EPS constituents, and Fe(III) mineral aggregates formed by the phototrophic Fe(II)oxidizing bacteria Rhodobacter ferrooxidans SW2 using confocal laser scanning microscopy (CLSM) in combination with metal-and glycoconjugates-specific fluorophores. The present study evaluated the influence of glycoconjugates, microbial cell surfaces, and (biogenic) Fe(III) minerals, and the availability of ferrous and ferric iron on heavy metal sorption. Analyses in this study provide detailed knowledge on the spatial distribution of metal ions in the aggregates at the sub-µm scale, which is essential to understand the underlying mechanisms of microbe-mineral-metal interactions. The heavy metals (Au 3+ , Cd 2+ , Cr 3+ , CrO 4 2-, Cu 2+ , Hg 2+ , Ni 2+ , Pd 2+ , tributyltin (TBT) and Zn 2+) were found mainly sorbed to cell surfaces, present within the glycoconjugates matrix, and bound to the mineral surfaces, but not incorporated into the biogenic Fe(III) minerals. Statistical analysis revealed that all ten heavy metals tested showed relatively similar sorption behaviour that was affected by the presence of sorbed ferrous and ferric iron. Results in this study showed that in addition to the mineral surfaces, both bacterial cell surfaces and the glycoconjugates provided most of sorption sites for heavy metals. Simultaneously, ferrous and ferric iron ions competed 3 with the heavy metals for sorption sites on the organic compounds. In summary, the information obtained by the present approach using a microbial model system provides important information to better understand the interactions between heavy metals and biofilms, and microbially formed Fe(III) minerals and heavy metals in complex natural environments.

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“…Cr(VI) contamination is highly associated with allergic dermatitis, carcinogenesis, and mutagenesis in animals and humans. In addition to traditional instrumental analysis methods, several strategies have been developed for quantitative determination of Cr(VI) using nanomaterials based on phenomena such as the inner lter effect (IFE), [37][38][39][40][41][42] electrochemical detection, 43,44 and absorbance detection. [45][46][47][48] Of these, the IFE mechanism is the most widely exploited owing to its low detection limit and comparative freedom from matrix effects.…”

Section: Introductionmentioning

confidence: 99%

Fluorescence-tunable copper nanoclusters and their application in hexavalent chromium sensing

Lin

Chiu

2019

RSC Adv.

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A novel fluorescent distinguished probe for Cr (VI) in aqueous solution

Cited by 29 publications

References 29 publications

Synthesis and Fe³⁺ Recognition of Novel Triazole Schiff-Base Derivatives Bearing Fluorogenic Naphthalene and Anthracene Units

Synthesis and Fe³⁺ Recognition of Novel Triazole Schiff-Base Derivatives Bearing Fluorogenic Naphthalene and Anthracene Units

Binding of heavy metal ions in aggregates of microbial cells, EPS and biogenic iron minerals measured in-situ using metal- and glycoconjugates-specific fluorophores

Fluorescence-tunable copper nanoclusters and their application in hexavalent chromium sensing

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A novel fluorescent distinguished probe for Cr (VI) in aqueous solution

Cited by 29 publications

References 29 publications

Synthesis and Fe3+ Recognition of Novel Triazole Schiff-Base Derivatives Bearing Fluorogenic Naphthalene and Anthracene Units

Synthesis and Fe3+ Recognition of Novel Triazole Schiff-Base Derivatives Bearing Fluorogenic Naphthalene and Anthracene Units

Binding of heavy metal ions in aggregates of microbial cells, EPS and biogenic iron minerals measured in-situ using metal- and glycoconjugates-specific fluorophores

Fluorescence-tunable copper nanoclusters and their application in hexavalent chromium sensing

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Synthesis and Fe³⁺ Recognition of Novel Triazole Schiff-Base Derivatives Bearing Fluorogenic Naphthalene and Anthracene Units

Synthesis and Fe³⁺ Recognition of Novel Triazole Schiff-Base Derivatives Bearing Fluorogenic Naphthalene and Anthracene Units