Synthesizing a nano-composite of BSA-capped Au nanoclusters/graphitic carbon nitride nanosheets as a new fluorescent probe for dopamine detection

Guo, Xin; Wu, Fang; Ni, Yongnian; Kokot, Serge

doi:10.1016/j.aca.2016.08.047

Cited by 63 publications

(23 citation statements)

References 47 publications

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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%

“…However, the smaller (d < 20-30 nm) plasmonic Au NPs may also exhibit characteristic shorttime fluorescence, which depends on the surface roughness or the grain size effect [19]. 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.…”

Section: Introductionmentioning

confidence: 99%

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

confidence: 99%

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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“…The authors also verified the capability of the sensor to detect the ricin concentration in real samples. Like 2D-QDs, the g-C 3 N 4 nanosheets have also been employed in a FRET system as the donor for direct sensing of quenchers [60][61][62]. Similarly, the absorption spectrum of quenchers should overlap with the emission spectrum of g-C 3 N 4 nanosheets.…”

Section: Other 2d Nanomaterials As the Donor In Fret Sensorsmentioning

confidence: 99%

“…carboxyl and amino groups) for the adsorption of quenchers or acceptors. Guo et al prepared the g-C 3 N 4 -gold NCs (AuNCs) nanocomposite by the covalent binding of g-C 3 N 4 and BSA-capped AuNCs [62]. The nanocomposite emitted a strong fluorescence at 420 nm under the 320-nm excitation.…”

Section: Other 2d Nanomaterials As the Donor In Fret Sensorsmentioning

confidence: 99%

Two-dimensional nanomaterials for Förster resonance energy transfer–based sensing applications

Zhou

Chen

et al. 2020

Nanophotonics

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Abstract Förster resonance energy transfer (FRET)–based sensing has been steadily gaining popularity in the areas of biochemical analysis, environmental monitoring, and disease diagnosis in the past 20 years. Two-dimensional (2D) nanomaterials are extensively used as donors and acceptors in the FRET sensing because of their attractive optical and chemical properties. In this review, we first present the FRET theory and calculations to give readers a better understanding of the FRET phenomenon. Then, we discuss the recent research advances in using 2D nanomaterials as donors and acceptor in FRET sensing. Finally, we summarize the existing challenges and future directions of 2D nanomaterials in the FRET sensing applications.

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“…Small structures such as nanorods, nanowires, and the use of nano/micro topography have made it possible to probe physical phenomena at cellular, subcellular organelle, and molecular levels . Indeed, crafting probes at this length scale enables not just recapitulation and measurement of cellular and molecular processes, but also infiltration into nuclei and manipulation of gene transcription and other subcellular processes .…”

Section: Conclusion and Future Perspectivesmentioning

confidence: 99%

3D Hybrid Small Scale Devices

Pagaduan

Bhatta

Romer

et al. 2018

Small

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Interfacing nano/microscale elements with biological components in 3D contexts opens new possibilities for mimicry, bionics, and augmentation of organismically and anatomically inspired materials. Abiotic nanoscale elements such as plasmonic nanostructures, piezoelectric ribbons, and thin film semiconductor devices interact with electromagnetic fields to facilitate advanced capabilities such as communication at a distance, digital feedback loops, logic, and memory. Biological components such as proteins, polynucleotides, cells, and organs feature complex chemical synthetic networks that can regulate growth, change shape, adapt, and regenerate. Abiotic and biotic components can be integrated in all three dimensions in a well-ordered and programmed manner with high tunability, versatility, and resolution to produce radically new materials and hybrid devices such as sensor fabrics, anatomically mimetic microfluidic modules, artificial tissues, smart prostheses, and bionic devices. In this critical Review, applications of small scale devices in 3D hybrid integration, biomicrofluidics, advanced prostheses, and bionic organs are discussed.

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Synthesizing a nano-composite of BSA-capped Au nanoclusters/graphitic carbon nitride nanosheets as a new fluorescent probe for dopamine detection

Cited by 63 publications

References 47 publications

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

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

Two-dimensional nanomaterials for Förster resonance energy transfer–based sensing applications

3D Hybrid Small Scale Devices

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