SERS of Dopamine: Computational and experimental studies

Hariharan, Abishek; Kurnoothala, Rajasimha; Chinthakayala, Sai Kumar; Vishnubhatla, Krishna Chaitanya; Vadlamudi, Prathyusha

doi:10.1016/j.saa.2021.119962

Cited by 14 publications

(10 citation statements)

References 67 publications

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“…Further, two additional F‐P‐type substrates were prepared with orange and blue colours via magnetron sputtering; these were designed to have relatively high (95 %) and low (56 %) absorption at 785 nm, respectively. In the detection of DA (10 −4 M), significantly enhanced Raman signals [17] were obtained at 632, 859, 949, 997, 1118, and 1615 cm −1 from the orange sample when compared with the blue one. This result once again indicates the positive correlation between SERS enhancement and the absorptivity of the substrate at the incident wavelength (Figure S17, Table S5).…”

Section: Resultsmentioning

confidence: 99%

Semiconductor SERS on Colourful Substrates with Fabry‐Pérot Cavities

Tang

et al. 2023

Angew Chem Int Ed

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Non-metallic materials have emerged as a new family of active substrates for surface-enhanced Raman scattering (SERS), with unique advantages over their metal counterparts. However, owing to their inefficient interaction with the incident wavelength, the Raman enhancement achieved with non-metallic materials is considerably lower with respect to the metallic ones. Herein, we propose colourful semiconductor-based SERS substrates for the first time by utilizing a Fabry-Pérot cavity, which realize a large freedom in manipulating light. Owing to the delicate adjustment of the absorption in terms of both frequency and intensity, resonant absorption can be achieved with a variety of non-metal SERS substrates, with the sensitivity further enhanced by � 100 times. As a typical example, by introducing a Fabry-Pérot-type substrate fabricated with SiO 2 /Si, a rather low detection limit of 10 À 16 M for the SARS-CoV-2S protein is achieved on SnS 2 . This study provides a realistic strategy for increasing SERS sensitivity when semiconductors are employed as SERS substrates.

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Section: Resultsmentioning

confidence: 99%

Semiconductor SERS on Colourful Substrates with Fabry‐Pérot Cavities

Tang

et al. 2023

Angew Chem Int Ed

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“…For the purpose of demonstrating the consistency of the carbonized PAN array in terms of the enhancement factor from sample to sample, we conducted SERS measurements of dopamine (for indicating a person's neurological state), 60 melamine (an important raw material in the chemical industry), 61 and creatinine (a well-known biomarker for the early diagnosis of kidney diseases and dysfunction). 62 With the test results on the silicon substrate being used as a standard spectrogram, Fig.…”

Section: Resultsmentioning

confidence: 99%

Carbonized polyacrylonitrile array as a sensitive, biocompatible, and durable substrate for surface-enhanced Raman spectroscopy

Zhang,

Bao,

et al. 2023

Environ. Sci.: Nano

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“…The DFT approach is increasingly used for SERS spectroscopy by several research groups, as demonstrated by the most recent studies [ 34 , 35 , 36 , 37 , 38 , 39 , 40 , 41 , 42 , 43 , 44 , 45 , 46 , 47 , 48 , 49 , 50 , 51 , 52 , 53 , 54 , 55 , 56 , 57 , 58 , 59 , 60 , 61 , 62 , 63 , 64 ] in which close links between DFT calculations and SERS applications are shown. Among these studies, the following studies devoted to applications in sensors, especially for environmental protection, and to applications in biomedicine, are worthy of particular attention.…”

Section: Recent Developmentsmentioning

confidence: 99%

“…In this work [ 46 ], a SERS–DFT study was performed on the neurotransmitter dopamine. Levels of dopamine indicate the neurological status of a human being, playing a central role in diseases such as Parkinson’s or schizophrenia.…”

Section: Recent Developmentsmentioning

confidence: 99%

Can DFT Calculations Provide Useful Information for SERS Applications?

Muniz‐Miranda

Menziani

et al. 2023

Molecules

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Density functional theory (DFT) calculations allow us to reproduce the SERS (surface-enhanced Raman scattering) spectra of molecules adsorbed on nanostructured metal surfaces and extract the most information this spectroscopy is potentially able to provide. The latter point mainly concerns the anchoring mechanism and the bond strength between molecule and metal as well as the structural and electronic modifications of the adsorbed molecule. These findings are of fundamental importance for the application of this spectroscopic technique. This review presents and discusses some SERS–DFT studies carried out in Italy as a collaboration between the universities of Modena and Reggio-Emilia and of Florence, giving an overview of the information that we can extract with a combination of experimental SERS spectra and DFT modeling. In addition, a selection of the most recent studies and advancements on the DFT approach to SERS spectroscopy is reported with commentary.

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SERS of Dopamine: Computational and experimental studies

Cited by 14 publications

References 67 publications

Semiconductor SERS on Colourful Substrates with Fabry‐Pérot Cavities

Semiconductor SERS on Colourful Substrates with Fabry‐Pérot Cavities

Carbonized polyacrylonitrile array as a sensitive, biocompatible, and durable substrate for surface-enhanced Raman spectroscopy

Can DFT Calculations Provide Useful Information for SERS Applications?

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