Fluorescence sensor array based on amino acid derived carbon dots for pattern-based detection of toxic metal ions

Wang, Zhe; Xu, Chao; Lu, Yuexiang; Chen, Xiaotong; Yuan, Hang; Wei, Guoyu; Ye, Gang; Chen, Jing

doi:10.1016/j.snb.2016.09.186

Cited by 153 publications

(63 citation statements)

References 24 publications

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“…This behavior was also reflected in the three-dimensional spectrum ( Figure S2 ), which exhibited three emission peaks, one characteristic peak at 450 nm and two weak scattering peaks over 300–400 nm. In addition, the QY of MR-CDs was calculated to be 18%, which was comparable to those of most amino acid-derived CDs reported previously [ 38 , 39 , 40 ].…”

Section: Resultssupporting

confidence: 84%

Carbon Dots Derived from the Maillard Reaction for pH Sensors and Cr (VI) Detection

et al. 2020

Nanomaterials

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The Maillard reaction involves a series of complex reactions; fluorescent compounds have been considered as vital intermediate products of the reaction. In this article, carbon dots (CDs) based on the Maillard reaction (MR-CDs) were prepared with L-tryptophan and D-glucose, and they had excellent photoluminescence stability. MR-CDs showed stable pH-dependence behavior and exhibited an excellent linear response to pH in the range of 4.0–7.5 and 7.5–13.0, respectively. Under the masking effect of sodium fluoride for Fe(III), MR-CDs showed excellent selectivity and sensitivity for Cr (VI). The linear range of Cr(VI) was 0.2–50 μM and the limit of detection was 20 nM. (S/N ≥ 3). Furthermore, MR-CDs were used to detect Cr(VI) in tap water samples. The recoveries were between 95.8% and 98.94%, and RSDs were less than 3.17%.

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Section: Resultssupporting

confidence: 84%

Carbon Dots Derived from the Maillard Reaction for pH Sensors and Cr (VI) Detection

et al. 2020

Nanomaterials

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“…1,2 With a diameter less than 10 nm and abundant hydrophilic functional groups on their surface, 3 C-dots can easily cross cellular membranes 4,5 and, therefore, are considerably attractive for bio-imaging and theranostics applications. More importantly, compared with the traditional metal quantum dot material, C-dots containing no heavy metals 6 are thought to be more environmentally friendly and should be safer for biological use. Despite this, C-dots should still be scrutinized for their safety before their wide application.…”

Section: Introductionmentioning

confidence: 99%

In vivotoxicology of carbon dots by¹H NMR-based metabolomics

Wei

Liu

et al. 2018

Toxicol. Res.

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“…To develop an efficient metal ion discrimination model based on chemometrics, we used LDA for the colorimetric responses of this sensor array against metal ions. LDA, which is one of the best‐known supervised pattern recognition methods, recognizes the group to which a new unknown analytes belongs. In this multivariate data analysis method, samples with known class identities (12 kinds of metal ions) were used for training.…”

Section: Resultsmentioning

confidence: 99%

Sensitive chemical sensor array based on nanozymes for discrimination of metal ions and teas

Cheng

Huang

et al. 2019

Luminescence

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Tea, originating from China, is an important part of Chinese traditional culture. There are different qualities of and producing areas for tea on the market, therefore it is necessary to discriminate between teas in a fast and accurate way. In this study, a chemical sensor array based on nanozymes was developed to discriminate between different metal ions and teas. The indicators for the sensor array are three kinds of nanozymes mimicking laccase (Cu‐ATP, Cu‐ADP, Cu‐AMP). The as‐developed sensor array successfully discriminated 12 metal ions and the detection limit was as low as 0.01 μM. The as‐developed sensor array was also able to discriminate tea samples. Different kinds of tea samples appeared in different areas in the canonical score plot with different response patterns. Furthermore, in a blind experiment, we successfully discriminated 12 samples with a 100% accuracy. This sensor array integrates chemistry and food science together, realizing the simultaneous detection of several kinds of teas using a sensitive method. The as‐developed sensor array would have an application in the tea market and provide a fast and easy method to discriminate between teas.

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Fluorescence sensor array based on amino acid derived carbon dots for pattern-based detection of toxic metal ions

Cited by 153 publications

References 24 publications

Carbon Dots Derived from the Maillard Reaction for pH Sensors and Cr (VI) Detection

Carbon Dots Derived from the Maillard Reaction for pH Sensors and Cr (VI) Detection

In vivotoxicology of carbon dots by¹H NMR-based metabolomics

Sensitive chemical sensor array based on nanozymes for discrimination of metal ions and teas

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Fluorescence sensor array based on amino acid derived carbon dots for pattern-based detection of toxic metal ions

Cited by 153 publications

References 24 publications

Carbon Dots Derived from the Maillard Reaction for pH Sensors and Cr (VI) Detection

Carbon Dots Derived from the Maillard Reaction for pH Sensors and Cr (VI) Detection

In vivotoxicology of carbon dots by1H NMR-based metabolomics

Sensitive chemical sensor array based on nanozymes for discrimination of metal ions and teas

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Product

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About

In vivotoxicology of carbon dots by¹H NMR-based metabolomics