Reliable Methodology for Measuring SERS Enhancement Factor on Colloidal and Solid Substrates: A Practical Guide

Journal of Raman Spectroscopy, Год журнала: 2025, Номер unknown

Опубликована: Янв. 30, 2025

ABSTRACT This study presents a robust and practical methodology for quantifying the Surface‐Enhanced Raman Spectroscopy (SERS) Enhancement Factor (EF) on both colloidal solid substrates. SERS, powerful technique enhancing signals of analytes near plasmonic surfaces, has found extensive applications in fields such as biomedicine materials science. However, inconsistencies EF measurement methods have hindered cross‐comparisons between different SERS work addresses these challenges by providing standardized protocol determination wide variety substrates composed gold silver nanoparticles, well nanostructured surfaces. Using p‐mercaptobenzoic acid (p‐MBA) model non‐resonant probe, approach accounts key variables including substrate geometry, sampling volume, inhomogeneity. reliable reproducible method offers framework researchers to assess performance with simple instruments techniques that should be easily available spectroscopy laboratory.

Язык: Английский

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Flexible label-free SERS substrate with alginate-chitosan@silver nanocube for in situ nondestructive detection of thiram on apples

Talanta, Год журнала: 2024, Номер 283, С. 127168 - 127168

Опубликована: Ноя. 5, 2024

Язык: Английский

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Efficient silver-based hybrid nano-assemblies for polystyrene nanoparticles SERS detection

Microchemical Journal, Год журнала: 2025, Номер unknown, С. 113276 - 113276

Опубликована: Март 1, 2025

Язык: Английский

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Seeing Is Believing: How Does the Surface of Silver Nanocubes Change during Their Growth in an Aqueous System

Nano Letters, Год журнала: 2025, Номер unknown

Опубликована: Апрель 21, 2025

The seed-mediated growth involving cetyltrimethylammonium chloride (CTAC), silver trifluoroacetate (CF3COOAg), ascorbic acid (H2Asc), and Ag seeds covered by poly(vinylpyrrolidone) (PVP) in aqueous medium is a robust route to nanocubes with tunable sizes. However, mechanistic details such as changes the surface remain elusive. Herein, we address this issue leveraging high sensitivity water compatibility of surface-enhanced Raman scattering (SERS). Our results reveal that addition CTAC ligand exchange between PVP further introduction CF3COOAg leads deposition AgCl on seeds. H2Asc subsequently introduced increases electron density due transfer, manifested rapid pronounced enhancement SERS signals from CTA+. electrons also enable reduction directly transform contact into atoms enlarge nanocubes.

Язык: Английский

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Seeing is believing: what is on the surface of silver nanocrystals suspended in their original reaction solution

Chemical Science, Год журнала: 2024, Номер 15(17), С. 6321 - 6330

Опубликована: Янв. 1, 2024

Surface-enhanced Raman scattering was used to resolve the chemical species, including chloride ions, on surface of Ag nanocrystals in their original reaction solution, avoiding changes while eliminating possible artifacts.

Язык: Английский

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Polyelectrolyte modified Ag-nanosphere: A Practical Approach for Sensitive and Selective SERS-based Detection of Organic Dye Pollutants

Optical Materials, Год журнала: 2024, Номер 156, С. 116036 - 116036

Опубликована: Авг. 30, 2024

Язык: Английский

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In The Rush for the New Black Gold: Plasmonic and Thermoplasmonics Properties of Nanoporous Gold

Опубликована: Окт. 9, 2024

Язык: Английский

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Raman spectroscopy and SERS: Recent advances in cultural heritage diagnostics and the potential use of anisotropic metal nanostructures

Journal of Cultural Heritage, Год журнала: 2024, Номер 71, С. 282 - 301

Опубликована: Дек. 31, 2024

Язык: Английский

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