Direct quantification of sulfur dioxide in wine by Surface Enhanced Raman Spectroscopy

Surface Minimal Bactericidal Concentration: A comparative study of active glasses functionalized with different-sized silver nanoparticles

“…The synthesis of spheroidal silver nanoparticles was adapted from a previously reported preparation [33][34][35]. Briefly, silver nitrate was reduced by sodium borohydride under controlled condition of temperature to produce seeds with a diameter of about 4 nm which were used as starters to the subsequent growth of larger nanoparticles based on the stepwise seeded-growth method.…”

A novel fluorescent probe based on triphenylamine for detecting sulfur dioxide derivatives

“…Existing methods for detecting sulfur dioxide derivatives include spectral analysis, electrochemical methods, titration analysis, etc. [24][25][26][27][28][29][30][31] But most of them have some shortcomings, such as poor selectivity and complicated detection conditions. Different from the traditional methods, the probe method has the merits of low price, recyclability, obvious detection results, and suitability for the detection of samples under complex conditions.…”

Graphene edge method for three‐dimensional probing of Raman microscopes focal volumes

“…Raman spectroscopy is a versatile method that nowadays is widespread in both industry and research, spanning such diverse fields as physics, chemistry, biology, art, pharmaceutical industry, medical analysis and more. [ 1–8 ] Along with most of its related variants, such as surface‐enhanced Raman spectroscopy (SERS), [ 9–12 ] it allows fast, non‐destructive, label‐free chemical identification analysis of solid, liquid and gaseous samples. When conveyed by an optical microscope, Raman microspectroscopy with visible light excitation is capable of reaching submicrometric spatial resolutions, [ 13,14 ] and two‐ and three‐dimensional chemical imaging is easily carried out with the adoption of motorised stages, allowing widespread analytical industrial and research applications, from the study of the distribution of active molecules in pharmaceuticals to the characterisation of the different layers in multilayered packaging materials, materials science fundamental studies and industrial quality control.…”