Magnetically optimized surface enhanced Raman scattering detection strategy and its sensing applications

Coordination Chemistry Reviews, Год журнала: 2024, Номер 510, С. 215848 - 215848

Опубликована: Апрель 11, 2024

Язык: Английский

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Optofluidic SERS based on Ag nanocubes with high sensitivity for detecting a prevalent water pollutant

Optics Letters, Год журнала: 2024, Номер 49(10), С. 2689 - 2689

Опубликована: Апрель 16, 2024

To enhance the integration and practical applicability of Raman detection system, silver nanocubes (Ag NCs) were synthesized using a polyol method. A liquid–liquid interface approach was employed to transfer monolayer Ag NCs “film” onto SiO 2 substrate, resulting in fabrication highly sensitive uniform surface-enhanced scattering (SERS) substrate denoted as “Ag NCs@SiO .” The electromagnetic field distribution various dimers on analyzed finite difference time domain (FDTD) software. results reveal that enhancement effect is most pronounced cube-cube dimers, indicating exhibit superior localized surface plasmon resonance (LSPR) response due their well-defined geometric regularity sharp angles. For Rhodamine 6G (R6G) probe molecules, shows ultrahigh sensitivity, with limit (LOD) 10 −12 mol/L, factor (EF) can reach 1.4 × . relative standard deviation (RSD) at main characteristic peaks below 10%, demonstrating good consistency performance. In addition, modified hexanethiol exhibits high uniformity, repeatability detecting for pyrene, LOD −8 mol/L minimum RSD 6.09% peak, effective recognition capabilities pyrene anthracene mixed solutions. Finally, chemisorption physisorption strategies prepared optofluidic channels experimentally compared, enabling real-time solution. This method achieve rapid precise differentiation polycyclic aromatic hydrocarbons water pollutant.

Язык: Английский

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An integrated enrichment-enhancement membrane SERS substrate for rapid detection of polycyclic aromatic hydrocarbons in aquatic environments

Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy, Год журнала: 2024, Номер 328, С. 125429 - 125429

Опубликована: Ноя. 17, 2024

Язык: Английский

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Magnetic Optimizing Surface-enhanced Raman scattering (SERS) Strategy of Detection and in-situ Monitoring of Photodegradation of Benzo[a]pyrene in water

Analytica Chimica Acta, Год журнала: 2024, Номер 1336, С. 343466 - 343466

Опубликована: Ноя. 22, 2024

Язык: Английский

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