Facile preparation of amino-carbon dots/gold nanoclusters FRET ratiometric fluorescent probe for sensing of Pb2+/Cu2+

Wang, Li; Cao, Hai-Xia; He, Yusheng; Pan, Chang-Gang; Sun, Tingkai; Zhang, Xinyang; Wang, Chuanyun; Liang, Guoxi

doi:10.1016/j.snb.2018.11.058

Cited by 79 publications

(27 citation statements)

References 40 publications

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“…The enhancement in the fluorescence intensity may be due to the chelation of Pb(II) ions by GE functional moieties, such as polyphenolic and flavonoid compounds. The detection limit was lower than those reported from 2018 to 2019, as listed in Table 1 [12,[20][21][22][23]. Figure 4C illustrates the selectivity of mw_G-BSA-AuNCs for the detection of Pb(II) ions versus the detection of other metal ions, such as Cu(II), Co(II), Mg(II), Hg(II), Ca(II), Mn(II), Na(I), Ba(II) Zn(II), Fe(II), Fe(III), Cr(III) and Cd(II), in the sensing platform.…”

Section: Sensitivity and Selectivity For Pb(ii) Detection By Mw_g-bsamentioning

confidence: 59%

Microwave Synthesis of Gold Nanoclusters with Garlic Extract Modifications for the Simple and Sensitive Detection of Lead Ions

2020

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Novel bovine serum albumin (BSA)-gold nanoclusters with garlic extract modifications (mw_G-BSA-AuNCs) were prepared through microwave-assisted rapid synthesis. The modified nanoclusters were characterized and used for the simple and sensitive detection of Pb2+ ions. Both turn-on and turn-off methods were used and compared for Pb2+ ion detection. For Pb2+ ions, the preparation time for the modified nanoclusters was 10 min, and the detection time for the nanoclusters was 6 min. The modified nanoclusters were stable, and their fluorescence intensities changed by less than 10% in 60 days. The detection limit and linear range for the “off-on” method of mw_G-BSA-AuNCs for Pb2+ ion detection were 0.28 and 1–20 nM, respectively. The recoveries of the mw_G-BSA-AuNCs probe used for the detection of the Pb(II) ion in tap water ranged from 93.8% to 102.2%, with an average of 97.1%. The “off-on” method of mw_G-BSA-AuNCs can provide a lower detection limit, higher selectivity, and better recovery than the commonly used “turn-off” methods of mw_BSA-AuNCs for Pb2+ ion detection. The proposed method is superior to other methods proposed from 2018 to 2019 because it can provide a shorter preparation time and a lower detection limit with good selectivity. The microwave-assisted novel compound, mw_G-BSA-AuNCs, can be rapidly synthesized in a green manner and can provide a low detection limit, good selectivity, and a simple and fast reaction for Pb2+ ion detection.

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Section: Sensitivity and Selectivity For Pb(ii) Detection By Mw_g-bsamentioning

confidence: 59%

Microwave Synthesis of Gold Nanoclusters with Garlic Extract Modifications for the Simple and Sensitive Detection of Lead Ions

2020

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“…A novel fluorescent sensor was fabricated through the electrostatic attraction between positively charged N-CDs and negatively charged gold nanoclusters (AuNCs), showing dual-emission peaks at 440 and 565 nm under a single excitation wavelength of 380 nm. Fluorescent ratiometric changes were used for selective and sensitive sensing of Pb 2+ and Cu 2+ with the stable blue fluorescence of N-CDs, as the red fluorescence of AuNCs enhanced by Pb 2+ and quenched by Cu 2+ (Wang et al, 2019 ).…”

Section: Fluorescent Nanomaterials For Heavy Metal Ions Detectionmentioning

confidence: 99%

Recent Developments in Fluorescent Materials for Heavy Metal Ions Analysis From the Perspective of Forensic Chemistry

Lian

Wang

et al. 2020

Front. Chem.

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“…Recently, carbon dots (CDs), as fluorescence nanomaterials, are known for their ease to synthesize and excellent biocompatibility. Wang et al reported a novel ratiometric fluorescent probe for Pb 2+ composed by positively-charged CDs and negatively-charged AuNCs [80]. Pb 2+ could enhance the emission of AuNCs, while the CDs remained unchanged.…”

Section: Luminescent Sensing Strategies Of Auncsmentioning

confidence: 99%

Strategies of Luminescent Gold Nanoclusters for Chemo-/Bio-Sensing

Shu

et al. 2019

Molecules

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Recent booming advances in luminescent gold nanoclusters (AuNCs), have prompted the development of novel fluorescent sensors. The luminescent AuNCs possess unique and intriguing physical and chemical properties including responsive photoluminescence and peroxide-like activity, providing abundant potentials for sensing strategy design. As of now, a wide variety of chem-/bio-sensors based on AuNCs have been developed and reviewed according to varied analytes. In this review, from a different point of view, we follow the route of how those sensors realize their functions and focus on the actual roles AuNCs play, in order to hierarchically and logically display the recent progress in the sensing applications of AuNCs. This review not only opens new windows to understand the development of sensors based on AuNCs but can also inspire broader and deeper utilization of luminescent nanomaterials.

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Facile preparation of amino-carbon dots/gold nanoclusters FRET ratiometric fluorescent probe for sensing of Pb2+/Cu2+

Cited by 79 publications

References 40 publications

Microwave Synthesis of Gold Nanoclusters with Garlic Extract Modifications for the Simple and Sensitive Detection of Lead Ions

Microwave Synthesis of Gold Nanoclusters with Garlic Extract Modifications for the Simple and Sensitive Detection of Lead Ions

Recent Developments in Fluorescent Materials for Heavy Metal Ions Analysis From the Perspective of Forensic Chemistry

Strategies of Luminescent Gold Nanoclusters for Chemo-/Bio-Sensing

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