A novel ratiometric fluorescence probe based on BSA assembled silver nanoclusters for mercuric ion selective sensing

Lu, Di; Zhang, Caihong; Fan, Li; Wu, Hongjuan; Shuang, Shaomin; Dong, Chuan

doi:10.1039/c3ay40901e

Cited by 34 publications

(19 citation statements)

References 34 publications

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“…Lu's group documented bovine serum albumin (BSA), assembled in a silver nanocarbon (BSA-Ag NCs), which functions as a novel ratiometric fluorescence probe for the monitoring of Hg 2+ . Experimental results furnished excellent linearity of the fluorescence response for the tracking of Hg 2+ within the concentration range of 0-2.5 mg mL −1 (Lu et al 2013). Meanwhile, the detection limit of 4.87 × 10 8 M was obtained from the Benesi-Hildebrand plot analysis, a much lower value than those of ratiometric fluorescent probes of organic origins.…”

Section: Mercuric (Ii) (Hg 2+ ) Nanoprobesmentioning

confidence: 84%

Fluorescent, colourimetric, and ratiometric probes based on diverse fluorophore motifs for mercuric(II) ion (Hg2+) sensing: highlights from 2011 to 2019

Aderinto

2020

Chem. Pap.

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Though it has not been shown to deliver any biological importance, mercuric(II) ion (Hg 2+) is a deleterious cation which poses grievous effects to the human body and/or the ecosystem, hence, the need for its sensitive and selective monitoring in both environmental and biological systems. Over the years, there has been a great deal of work in the use of fluorescent, colourimetric, and/or ratiometric probes for Hg 2+ recognition. Essentially, the purpose of this review article is to give an overview of the advances made in the constructions of such probes based on the works reported in the period from 2011 to 2019. Discussion in this review work has been tailored to the kinds of fluorophore scaffolds used for the constructions of the probes reported. Selected examples of probes under each fluorophore subcategory were discussed with mentions of the typically determined parameters in an analytical sensing operation, including modulation in fluorescence intensity, optimal pH, detection limit, and association constant. The environmental and biological application ends of the probes were also touched where necessary. Important generalisations and conclusions were given at the end of the review. This review article highlights 196 references. Keywords Mercuric(II) ion (Hg 2+) • Fluorescent probes • Colourimetric probes • Ratiometric probes • Hg 2+-selective probes • Sensing

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Section: Mercuric (Ii) (Hg 2+ ) Nanoprobesmentioning

confidence: 84%

Fluorescent, colourimetric, and ratiometric probes based on diverse fluorophore motifs for mercuric(II) ion (Hg2+) sensing: highlights from 2011 to 2019

Aderinto

2020

Chem. Pap.

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“…We accept the comment of Reviewer#3, the manuscript was completed with some important data relating to the electrophoretic mobility (zeta potential), the size and the stability of the clusters in solutions. (page 7, line [11][12][13][14][15][16][17][18][19][20][21][22][23][24][25] The following data were inserted into the text: "Besides the structural characterization the pH-stability of the AMP-Au NCs has also been investigated in a wide pH range (pH [1][2][3][4][5][6][7][8][9][10][11][12]. As it can be seen in Fig.…”

Section: Accordingly Figure 1 Should Be Moved To the Supporting Infomentioning

confidence: 99%

“…In view of the above mentioned structural and optical features the Au NCs are potential candidates for being fluorescence markers, and their sensor applications are also in the focus of interest [4,20,21]. Protein-capped Au NCs have been successfully used for the detection of Hg 2+ ions [22,23] where the LOD was assigned from the quantity of the fluorescence quenching. Several protein-or amino acid-capped Au NCs show high selectivity for Cu 2+ ion, too [24,25].…”

Section: Introductionmentioning

confidence: 99%

Nucleotide-directed syntheses of gold nanohybrid systems with structure-dependent optical features: Selective fluorescence sensing of Fe3+ ions

Ungor

Csapó

Kismárton

et al. 2017

Colloids and Surfaces B: Biointerfaces

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This study demonstrates a one-step synthesis for the preparation of both adenosine monophosphate (AMP)-stabilized colloidal gold nanoparticles (AMP-Au NPs) and fluorescent gold nanoclusters (AMP-Au NCs). The dominant role of AMP:AuCl molar ratios in the formation of diverse nanosized Au products was proved. The size, the structure and the unique structure-dependent optical properties of the NPs and NCs were determined based on the results of numerous spectroscopic (UV-vis, fluorescence, infrared, x-ray photoelectron), high resolution electron microscopy (HRTEM) and dynamic light scattering (DLS) techniques. Stabile AMP-Au NPs with diameter of ca. 11nm and ultra-small AMP-Au NCs having blue fluorescence (λ=480nm) were identified. In addition, the AMP-Au NCs have been utilized to develop a selective sensor for the detection of Fe ions in aqueous medium based on fluorescence quenching. Several essential metal ions and anions have been tested but our results clearly supported that dominant quenching was observed only for Fe ions. Based on the determined limit of detection (LOD=2.0μM) our system is capable of detecting Fe ions in drinking water. The Stern-Volmer constants (K) and various thermodynamic parameters (ΔG, ΔH°, ΔS°, ΔC) of the quenching process have also been determined by the Stern-Volmer fitting of the fluorescence data in order to better understand the quenching mechanism.

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“…In Guo and co‐workers′ study, they demonstrated for the first time that the Ag 34 NC‐dBSA could be used to detect Hg 2+ with high sensitivity and selectivity (Figure 8b). 11a Another independent study showed that the Ag 15 NC‐BSA could also sense Hg 2+ 40b. The determination of H 2 O 2 was accomplished by quenching the fluorescence of Ag 13 NC‐BSA 40c.…”

Section: Protein‐directed Approachesmentioning

confidence: 99%

Protein‐ and Peptide‐directed Approaches to Fluorescent Metal Nanoclusters

Guo

Wei

2015

Israel Journal of Chemistry

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Fluorescent metal nanoclusters (FMNCs), one of the promising functional nanomaterials, have aroused great interest in diverse areas due to their unique characteristics, such as ultrasmall size, high fluorescence, excellent photophysical and chemical stability, good biocompatibility, and tuneable emissions. Many methods have been developed to prepare the FMNCs. Among them, the biomolecule‐directed approach, which could produce FMNCs with high water‐solubility, good biocompatibility, enhanced fluorescence, and rich surface chemistry for conjugation has attracted enormous attention. In this review, we highlight the substantial progress in protein‐ and peptide‐directed approaches to varieties of FMNCs. The synthetic protocols and potential formation mechanisms are well summarized. Selected key applications, ranging from biological and chemical detection to cellular and in vivo imaging, are also discussed. Finally, the current challenges, as well as future perspectives, are briefly discussed. The lessons from these case studies would provide a valuable guide to designing nanomaterials with desired or even personalized functions in the future.

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A novel ratiometric fluorescence probe based on BSA assembled silver nanoclusters for mercuric ion selective sensing

Cited by 34 publications

References 34 publications

Fluorescent, colourimetric, and ratiometric probes based on diverse fluorophore motifs for mercuric(II) ion (Hg2+) sensing: highlights from 2011 to 2019

Fluorescent, colourimetric, and ratiometric probes based on diverse fluorophore motifs for mercuric(II) ion (Hg2+) sensing: highlights from 2011 to 2019

Nucleotide-directed syntheses of gold nanohybrid systems with structure-dependent optical features: Selective fluorescence sensing of Fe3+ ions

Protein‐ and Peptide‐directed Approaches to Fluorescent Metal Nanoclusters

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