Surface-enhanced Raman scattering for dopamine in Ag colloid: Adsorption mechanism and detection in the presence of interfering species

Figueiredo, Maria L.B.; Martin, Cibely S.; Furini, Leonardo N.; Rubira, Rafael J. G.; Batagin‐Neto, Augusto; Aléssio, Priscila; Constantino, Carlos J. L.

doi:10.1016/j.apsusc.2020.146466

Cited by 55 publications

(32 citation statements)

References 54 publications

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“…Therefore, designing a highly selective and sensitive approach for the precise DA detection is essential. Various approaches have been employed for determination of DA, such as electrochemical sensors [3], surface-enhanced Raman spectroscopy [4], colorimetric biosensors [5], fluorescence [6] and UV-vis spectrophotometry [7]. Nevertheless, various problems like longer detection time, expensive equipment and complex pretreatment are associated with those approaches that cannot meet the present needs for sensitive and rapid DA determination.…”

Section: Introductionmentioning

confidence: 99%

Facile Green Synthesis of NiO/NiCo₂O₄ Nanocomposite as an Efficient Electrochemical Platform for Determination of Dopamine

Amiri

Javar

2021

Electroanalysis

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The synthesis of NiO/NiCo2O4 nanoparticles by an eco‐friendly, fast, simple and cost‐effective approach employing Urtica extract is reported in this study. The NiO/NiCo2O4 nanocomposite were characterized using VSM, FTIR, XRD, and SEM techniques. Moreover, to construct a modified carbon paste electrode, NiO/NiCo2O4 were employed and this sensor was used for dopamine (DA) detection. Using cyclic voltammetry (CV) and differential pulse voltammetry (DPV) techniques, the electrochemical behavior of dopamine at the NiO/NiCo2O4/CPE was investigated. Analysis of dopamine, with a limit of detection (LOD) equal to 0.04 μM, in the concentration range of 0.1–100.0 μM, was facilitated by NiO/NiCo2O4/CPE. Moreover, the satisfactory selectivity for DA determination in the presence of uric acid (UA) and ascorbic acid (AA), was obtained. The suggested new sensor displayed a good reproducibility, sensitivity, and stability for determination of DA in drug and biological samples.

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Section: Introductionmentioning

confidence: 99%

Facile Green Synthesis of NiO/NiCo₂O₄ Nanocomposite as an Efficient Electrochemical Platform for Determination of Dopamine

Amiri

Javar

2021

Electroanalysis

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“…The dopamine molecule can specifically get adsorbed on the surface of Ag nanoparticles. The interactions of dopamine molecule on the Ag metal surface have been previously investigated in various reports( Lee et al, 1988 ; Pande et al, 2009 ; Figueiredo et al, 2020 ; Rossi-Fernández et al, 2020 ). The adsorption of dopamine can be promoted by the catechol ring and N-protonated group as described by Figueiredo et al (2020 ).…”

Section: Resultsmentioning

confidence: 99%

“…The interactions of dopamine molecule on the Ag metal surface have been previously investigated in various reports( Lee et al, 1988 ; Pande et al, 2009 ; Figueiredo et al, 2020 ; Rossi-Fernández et al, 2020 ). The adsorption of dopamine can be promoted by the catechol ring and N-protonated group as described by Figueiredo et al (2020 ). In the presence of a metal surface, one of the hydroxyl group can be deprotonated and get adsorbed on the metal surface ( Figueiredo et al, 2020 ).…”

Section: Resultsmentioning

confidence: 99%

DNA Origami-Templated Bimetallic Nanostar Assemblies for Ultra-Sensitive Detection of Dopamine

2021

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The abundance of hotspots tuned via precise arrangement of coupled plasmonic nanostructures highly boost the surface-enhanced Raman scattering (SERS) signal enhancements, expanding their potential applicability to a diverse range of applications. Herein, nanoscale assembly of Ag coated Au nanostars in dimer and trimer configurations with tunable nanogap was achieved using programmable DNA origami technique. The resulting assemblies were then utilized for SERS-based ultra-sensitive detection of an important neurotransmitter, dopamine. The trimer assemblies were able to detect dopamine with picomolar sensitivity, and the assembled dimer structures achieved SERS sensitivity as low as 1 fM with a limit of detection of 0.225 fM. Overall, such coupled nanoarchitectures with superior plasmon tunability are promising to explore new avenues in biomedical diagnostic applications.

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“…NiTsPc SERRS: the SERRS spectra of NiTsPc at 1.6x10 -5 mol L -1 recorded in AuNR colloid (Figure 4A) with laser line at 633 nm showed the main bands at 752 (Pc ring breathing), 1188 (SO 3 stretching), 1338 (pyrrole stretching), and 1531 cm -1 (isoindol stretching), which are similar in wavenumber (band center) to those observed for both powder and solution of NiTsPc (Table S1) [53][54][55] . These bands observed in the SERRS spectra are ascribed to in-plane vibrations, which based on SERS surface selection rules (electric field perpendicularly oriented at the metallic surface) 2,56 suggest that NiTsPc molecules are perpendicularly oriented onto the AuNR surface (preferentially).…”

Section: Sers Serrs and Sef Spectramentioning

confidence: 99%

The Plasmonic Effect of Gold Nanorods on Charged Molecules: SERRS and SEF effects

Oliveira¹,

Rubira²,

Martin³

et al. 2021

Mat. Res.

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Target molecules adsorbed onto metallic nanoparticles can have their Raman and/or fluorescence signals enhanced, leading to the called surface-enhanced [resonance] Raman scattering (SE[R]RS) or surface-enhanced fluorescence (SEF). Here we have applied Au nanorods (AuNRs) coated with a surfactant bilayer leading to a positive surface charge to investigate the role played by these AuNRs in colloidal suspension on SERRS and SEF effects of charged molecules. In the case of the anionic nickel (II) tetrasulfonated phthalocyanine (NiTsPc), besides achieving SERRS with an enhancement factor (EF) of ca. 10 5 , the AuNRs allowed the analytical application of the SERRS effect for the NiTsPc between 8.3x10 -6 and 4.0x10 -5 mol L -1 . The limit of detection of 4.8x10 -7 mol L -1 (at 752 cm -1 ) and 1.3x10 -6 mol L -1 (at 1338 cm -1 ) was found. In the case of the cationic methylene blue, the SEF effect was achieved reaching an EF of ca. 10. Besides, fundamental discussions are carried out considering the results presented here.

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Surface-enhanced Raman scattering for dopamine in Ag colloid: Adsorption mechanism and detection in the presence of interfering species

Cited by 55 publications

References 54 publications

Facile Green Synthesis of NiO/NiCo₂O₄ Nanocomposite as an Efficient Electrochemical Platform for Determination of Dopamine

Facile Green Synthesis of NiO/NiCo₂O₄ Nanocomposite as an Efficient Electrochemical Platform for Determination of Dopamine

DNA Origami-Templated Bimetallic Nanostar Assemblies for Ultra-Sensitive Detection of Dopamine

The Plasmonic Effect of Gold Nanorods on Charged Molecules: SERRS and SEF effects

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Surface-enhanced Raman scattering for dopamine in Ag colloid: Adsorption mechanism and detection in the presence of interfering species

Cited by 55 publications

References 54 publications

Facile Green Synthesis of NiO/NiCo2O4 Nanocomposite as an Efficient Electrochemical Platform for Determination of Dopamine

Facile Green Synthesis of NiO/NiCo2O4 Nanocomposite as an Efficient Electrochemical Platform for Determination of Dopamine

DNA Origami-Templated Bimetallic Nanostar Assemblies for Ultra-Sensitive Detection of Dopamine

The Plasmonic Effect of Gold Nanorods on Charged Molecules: SERRS and SEF effects

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Resources

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Facile Green Synthesis of NiO/NiCo₂O₄ Nanocomposite as an Efficient Electrochemical Platform for Determination of Dopamine

Facile Green Synthesis of NiO/NiCo₂O₄ Nanocomposite as an Efficient Electrochemical Platform for Determination of Dopamine