A unique turn-off fluorescent strategy for sensing dopamine based on formed polydopamine (pDA) using graphene quantum dots (GQDs) as fluorescent probe

Weng, Shaohuang; Dong, Liang; Qiu, Huazhang; Liu, Zongen; Lin, Zhen; Zheng, Zongfu; Liu, Ailin; Chen, Wei; Lin, Xinhua

doi:10.1016/j.snb.2015.06.093

Cited by 98 publications

(41 citation statements)

References 38 publications

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“…The color variation of AuNPs associated with the reversible process from dispersion to aggregation induced by the intermolecular interactions between dopamine and surface modifiers on the AuNPs can be observed by naked eyes and quantified by UV-vis spectra [18][19][20][21][22]. In addition, several fluorometric assays have been demonstrated for the detection of dopamine with high sensitivity using fluorophores such as calcein blue-Fe 2+ complex [23], carbon dots [24], silicon nanoparticles [25], molecule capped QDs [26][27][28][29], and gold nanoclusters (AuNCs) [30,31]. To the best of our knowledge, only one dual-mode assay has been reported for dopamine detection, where BSA-stabilized AuNCs were employed as sensing components [32].…”

Section: Introductionmentioning

confidence: 99%

Rapid determination of dopamine in human plasma using a gold nanoparticle-based dual-mode sensing system

Zhang

Liu

et al. 2016

Materials Science and Engineering: C

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Section: Introductionmentioning

confidence: 99%

Rapid determination of dopamine in human plasma using a gold nanoparticle-based dual-mode sensing system

Zhang

Liu

et al. 2016

Materials Science and Engineering: C

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“…The graphene quantum dots were prepared via a hydrothermal method utilizing pyrolyzed citric acid (CA) as the precursor in an alkaline environment according to some previously reported literature [28–30]. Typically, 0.21 g (1 mmol) CA and 0.12 g (3 mmol) sodium hydroxide (NaOH) were dissolved into 5 mL water and stirred to form a clear solution.…”

Section: Methods/experimentalmentioning

confidence: 99%

High-Performance Ultraviolet Photodetector Based on Graphene Quantum Dots Decorated ZnO Nanorods/GaN Film Isotype Heterojunctions

Liu

Gao

et al. 2018

Nanoscale Res Lett

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A novel isotype heterojunction ultraviolet photodetector was fabricated by growing n-ZnO nanorod arrays on n-GaN thin films and then spin-coated with graphene quantum dots (GQDs). Exposed to UV illumination with a wavelength of 365 nm, the time-dependent photoresponse of the hybrid detectors manifests high sensitivity and consistent transients with a rise time of 100 ms and a decay time of 120 ms. Meanwhile, an ultra-high specific detectivity (up to ~ 1012 Jones) and high photoresponsivity (up to 34 mA W−1) are obtained at 10 V bias. Compared to the bare heterojunction detectors, the excellent performance of the GQDs decorated n-ZnO/n-GaN heterostructure is attributed to the efficient immobilization of GQDs on the ZnO nanorod arrays. GQDs were exploited as a light absorber and act like an electron donor to effectively improve the effective carrier concentration in interfacial junction. Moreover, appropriate energy band alignment in GQDs decorated ZnO/GaN hybrids can also be a potential factor in facilitating the UV-induced photocurrent and response speed.

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“…Large catecholamine aggregates are not fluorescent, and indeed, can take part in fluorescence quenching attributed to both absorbance of excited electrons through photoinduced electron transfer and fluorescence resonance energy transfer (FRET) dependent on other components in the system. However, polymerization under conditions that minimize or prevent aggregation through fluorescence quenching π–π stacking interactions result in very small particles or free catecholamine oligomers that are fluorescent .…”

Section: Catecholamine Polymers: Chemistry and Structurementioning

confidence: 99%

“…More specific use of the polydopamine formation and degradation chemistries has also been applied to biological detection. In one example, fluorescent graphene quantum dots were used to detect dopamine from simulated sera through its reaction to make polydopamine, coating the graphene and quenching fluorescence through the FRET mechanism . In a second example, dopamine was mixed with fluorescent upconversion nanoparticles in complex media.…”

Section: Applications Of Catecholamine Polymersmentioning

confidence: 99%

Versatile Surface Modification Using Polydopamine and Related Polycatecholamines: Chemistry, Structure, and Applications

Barclay

Hegab

Clarke

et al. 2017

Adv Materials Inter

300

223

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Almost ten years ago, Lee et al. [13] formulated a universal adhesive coating based on observation of the strong attachment by mussels through their byssal threads to virtually all types of inorganic and organic surfaces. The amino acid compositions of the mussel foot proteins that generate the attachment are rich in catechol and amine groups. [13][14][15] These groups associate under marine conditions, forming strong covalent and noncovalent interactions with substrates. [13] This led to the idea that both catechol and amine groups were crucial in forming robust, wide spectrum adhesive nanolayers [16,17] and consequently dopamine was conceived as a powerful building block for spontaneous deposition of thin polymer films. The dopamine monomer is deposited onto unadulterated surfaces through self-assembly and oxidative cross-linking from mild pH aqueous solution in a rapid reaction. This results in a durable, nanoscale, conformal, and hydrophilic coating that can be readily modified to introduce specific surface chemistries for a particular application. [18][19][20][21][22] These bioinspired, polydopamine materials are chemically and structurally indistinguishable from eumelanins found in the human body, [23,24] providing excellent biocompatibility. Additionally, polydopamine has broad electromagnetic absorption and excellent photothermal energy conversion [25] as well as having ionic-electronic hybrid conductivity. [26] Along with the excellent coating performance, these properties provide a vast array of potential applications for polydopamine materials.In this article, we explain what is known about polydopamine and related catecholamine coatings; their formation, the adhesion mechanism, and their physicochemical properties and we also review the applications of these materials (Figure 1). Since 2011, there have been a number of reviews on this subject matter, including general reviews on the physicochemical properties of polydopamine coatings [11,20,[27][28][29] and their applications. [20,27,30] There are also a number of more specific reviews on the chemical synthesis and modulation of polycatecholamine coatings, [31] the biomedical applications of these coatings, [8,[32][33][34] their electronic properties, [26,35] the use of polydopamine to make films at fluid interfaces, [36] in hierarchically constructed particles, [33] and capsules, [30] exploitation of polycatecholamine coatings in membrane filtration, [37] polydopamine-derived carbon materials, [38] and the use of coordination chemistry in catechol-based materials. [39] Nonetheless, this area of research is growing so rapidly [25,27] that many recent Polydopamine and related polycatecholamines can be easily deposited onto almost any surface from mild, aqueous solution. This results in durable, nanoscale coatings that exhibit high biocompatibility and have useful chemical and electronic properties. Additionally, these materials can be readily chemically and physically modified, and consequently, they are used extensively for surface modification. This ...

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A unique turn-off fluorescent strategy for sensing dopamine based on formed polydopamine (pDA) using graphene quantum dots (GQDs) as fluorescent probe

Cited by 98 publications

References 38 publications

Rapid determination of dopamine in human plasma using a gold nanoparticle-based dual-mode sensing system

Rapid determination of dopamine in human plasma using a gold nanoparticle-based dual-mode sensing system

High-Performance Ultraviolet Photodetector Based on Graphene Quantum Dots Decorated ZnO Nanorods/GaN Film Isotype Heterojunctions

Versatile Surface Modification Using Polydopamine and Related Polycatecholamines: Chemistry, Structure, and Applications

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