A sensitive and reliable dopamine biosensor was developed based on the Au@carbon dots–chitosan composite film

Huang, Qitong; Zhang, Hanqiang; Hu, Shirong; Li, Feiming; Weng, Wen; Chen, Jianhua; Wang, Qingxiang; He, Yingran; Zhang, Wuxiang; Bao, Xiuxiu

doi:10.1016/j.bios.2013.09.003

Cited by 198 publications

(74 citation statements)

References 35 publications

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“…25,26 Along with the development of sensitive ion studies, CDs can also be served as effective probes for dopamine, H 2 O 2 and theranostic. [27][28][29][30] Recently, Shi's group reported CDs as probe for Co 2+ through a Fenton-like reaction. 31 While it include complex processed including electronic spinning resonance and chemiluminescence measurements which limit its application.…”

Section: Introductionmentioning

confidence: 99%

Cobalt(ii) ions detection using carbon dots as an sensitive and selective fluorescent probe

et al. 2016

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A simple method was designed for detecting cobalt ions (Co 2+ ) based on the analyte induced fluorescence quenching of carbon dots (CDs). CDs with a quantum yield of 38.7% were synthesized by hydrothermal treatment of carbopol 934 and diethylenetriamine. Through the metal-ligand interaction, the prepared CDs can highly sensitive and selective detection of Co 2+ . The color changes (from transparent to brown) of the solution can be clearly seen with naked eye. This effective sensing platform shows high sensitivity and selectivity towards Co 2+ . Moreover, the CDs are also successfully utilized for monitoring natural water quality about Co 2+ contents.

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Section: Introductionmentioning

confidence: 99%

Cobalt(ii) ions detection using carbon dots as an sensitive and selective fluorescent probe

et al. 2016

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“…It is also worth noting that the presence of the bowl-like calix [4]arene and thiacalix [4]arene cavities (Scheme 1c) is the prerequisite for the inclusion complex formation with organic molecules [37,40,41]. The lack of any detectable effect of the catecholamines on the luminescence of [Tb(TCAS)] in buffer solution According to literature data the formation of AD from EP is slow at pH 6, while this process is greatly accelerated under pH increase and complex formation with metal ions [25][26][27]. As it has been abovementioned the EP → AD transformation manifests itself by the appearance of the absorption band at 480 nm ( Fig.…”

Section: Resultsmentioning

confidence: 87%

“…Unfortunately this approach is not selective enough to discriminate between EP and DA. The selective binding of definite catecholamine with a surface should be noted as rather promising approach to discriminate one from another [21,[25][26][27][28][29]. Nevertheless most of the literature data highlight the EP versus DA selectivity as complicated and unresolved problem [20,30].…”

Section: Introductionmentioning

confidence: 99%

Effect of silica coating and further silica surface decoration by phospholipid bilayer on quenching of Tb(III) complexes by adrenochrome

Mukhametshina

Mustafina

Syakaev

et al. 2015

Journal of Molecular Liquids

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“…Moreover, both the cathodic and anodic peak currents increased with an increase in scan rate from 0.01 to 0.5 V s . Results indicate that the electro-redox of DA on C-dots/IL-graphene/GCE behaves as a typical diffusion-controlled process [32]. In addition, at higher scan rates, the anode (E pa ) and cathode (E pc ) peak potential have a linear relationship with the logarithm of scan rate (log v).…”

Section: Effects Of Scan Ratementioning

confidence: 90%

Enhanced voltammetric determination of dopamine using a glassy carbon electrode modified with ionic liquid-functionalized graphene and carbon dots

Zhuang

Wang

et al. 2016

Microchim Acta

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The authors describe a dopamine (DA) sensor based on a glassy carbon electrode modified with a composite film composed of carbon dots (C-dots) and graphene functionalized with an ionic liquid. The C-dots were functionalized with carboxy groups whose negative charge promotes electrostatic attraction to the protonated amino groups in DA. The presence of an imidazole cation in the IL facilitates interaction with the C-dots and DA via electrostatic interactions and π-stacking forces. Under optimal conditions, the modified GCE display improved electrochemical response to DA compared to a bare GCE, or a GCE modified with C-dots or IL-graphene only. The oxidation current, measured best at a potential of 0.22 V (vs. Ag/AgCl) is linearly related to the DA concentration in the 0.1 to 600 μM range, with a 30 nM detection limit at a signal-to-noise ratio of 3. Ascorbic acid does not interfere even in large excess, and the sensor is stable for at least a month. The modified GCE was applied to the determination of DA in spiked fetal bovine serum and gave satisfactory results.

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A sensitive and reliable dopamine biosensor was developed based on the Au@carbon dots–chitosan composite film

Cited by 198 publications

References 35 publications

Cobalt(ii) ions detection using carbon dots as an sensitive and selective fluorescent probe

Cobalt(ii) ions detection using carbon dots as an sensitive and selective fluorescent probe

Effect of silica coating and further silica surface decoration by phospholipid bilayer on quenching of Tb(III) complexes by adrenochrome

Enhanced voltammetric determination of dopamine using a glassy carbon electrode modified with ionic liquid-functionalized graphene and carbon dots

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