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Related papers: Raman spectroscopy of chocolate bloom

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Raman spectroscopy provides spectral information related to the specific molecular structures of substances and has been well established as a powerful tool for studying biological tissues and diagnosing diseases. This article reviews…

Raman spectroscopy is a well established tool for the analysis of vibration spectra, which then allow for the determination of individual substances in a chemical sample, or for their phase transitions. In the…

Numerical Analysis · Mathematics 2020-07-15 Konstantin Fackeldey , Jonas Röhm , Amir Niknejad , Surahit Chewle , Marcus Weber

Raman micro/macro-spectroscopy allows for a non-destructive remote analysis: body and glaze, crystalline and amorphous phases can be identified, including the nanosized pigments colouring the glaze. Last generation instruments are portable…

Materials Science · Physics 2007-05-23 Philippe Colomban

Raman spectroscopy is an integral part of graphene research. It is used to determine the number and orientation of layers, the quality and types of edge, and the effects of perturbations, such as electric and magnetic fields, strain,…

Materials Science · Physics 2015-06-16 Andrea C. Ferrari , Denis M. Basko

In general, most of the substances in nature exist in mixtures, and the noninvasive identification of mixture composition with high speed and accuracy remains a difficult task. However, the development of Raman spectroscopy, machine…

Signal Processing · Electrical Eng. & Systems 2022-02-02 Liangrui Pan , Peng Zhang , Chalongrat Daengngam , Mitchai Chongcheawchamnan

Raman spectroscopy is a promising technique used for noninvasive analysis of samples in various fields of application due to its ability for fingerprint probing of samples at the molecular level. Chemometrics methods are widely used…

Quantitative Methods · Quantitative Biology 2022-10-20 Yulia Khristoforova , Lyudmila Bratchenko , Ivan Bratchenko

The natural variation of temperature at ambient conditions produces spontaneous patterns on the surface of chocolate, which result from fat bloom. These patterns are peculiar because of their shape and cannot be obtained by controlled…

Soft Condensed Matter · Physics 2020-12-21 Jorge Delgado , Claudia Ferreiro-Córdova , Alejandro Gil-Villegas

The interest of micro and tip-enhanced Raman spectroscopy to analyze nanosized and nanostructured materials, chiefly semiconductors, oxides and pristine or functionalized carbon nanotubes, is reviewed at the light of the contributions to…

Materials Science · Physics 2007-06-07 Philippe Colomban , Gwénael Gouadec

Surface enhanced Raman spectroscopy, is a technique of fundamental importance to analytical science and technology where the amplified Raman spectrum of analytes is used for chemical fingerprinting. Here, we showcase an engineered…

Applied Physics · Physics 2021-06-08 K N Prajapati , Anoop A Nair , S Ravi P Silva , J Mitra

Raman spectroscopy is widely applied to detect different chemical compounds in organic matter and create label-free high-resolution maps on the level of separate cells. The main advantage of this technique is the possibility to study…

Applied Physics · Physics 2025-01-15 Petr Shvets , Aleksandr Goikhman

The purpose of the present report was the study and identification of an unspecified sample on a work of art by means only of a microscope coupled to a Raman spectrometer. The origin of the fragment was unknown. The Raman spectra on the…

Physics Education · Physics 2016-07-12 Barbara Federica Scremin

A set of theoretical results on infrared absorption and inelastic (Raman) scattering of light in semiconductor quantum dots is reviewed. When it is possible, qualitative comparisons with recent experimental results are presented.

Mesoscale and Nanoscale Physics · Physics 2007-05-23 Augusto Gonzalez , Alain Delgado

Raman spectroscopy is an important tool in the study of vibrational properties and composition of molecules, peptides and even proteins. Raman spectra can be simulated based on the change of the electronic polarizability with vibrations,…

Computational Physics · Physics 2024-04-30 Ethan Berger , Juha Niemelä , Outi Lampela , André H. Juffer , Hannu-Pekka Komsa

Raman spectroscopy's capability to provide meaningful composition predictions is heavily reliant on a pre-processing step to remove insignificant spectral variation. This is crucial in biofluid analysis. Widespread adoption of diagnostics…

Signal Processing · Electrical Eng. & Systems 2019-04-05 Emily E Storey , Amr S. Helmy

Raman scattering is a chemically selective probing mechanism with diverse applications in industry and clinical settings. Yet, most samples are optically opaque limiting the applicability of Raman probing at depth. Here, we demonstrate…

Raman spectroscopy is a useful experimental tool to investigate local deformation and structural changes in SiO$_2$-based glasses. Using a semi-classical modelling of Raman spectra in large samples of silica glasses, we show in this paper…

Disordered Systems and Neural Networks · Physics 2015-02-04 Nikita S. Shcheblanov , Boris Mantisi , Paolo Umari , Anne Tanguy

Despite being applied with success in many fields of materials science, Raman spectroscopy is not yet determinant in the study of electroceramics. Recent experimental and theoretical developments, however, should increase the popularity of…

Materials Science · Physics 2023-11-03 Marco Deluca , Hailong Hu , Maxim N. Popov , Jürgen Spitaler , Thomas Dieing

Multispectral imaging coupled with Artificial Intelligence, Machine Learning and Signal Processing techniques work as a feasible alternative for laboratory testing, especially in food quality control. Most of the recent related research has…

Raman spectroscopy can be used to identify molecules such as DNA by the characteristic scattering of light from a laser. It is sensitive at very low concentrations and can accurately quantify the amount of a given molecule in a sample. The…

Applications · Statistics 2026-02-03 Matthew Moores , Kirsten Gracie , Jake Carson , Karen Faulds , Duncan Graham , Mark Girolami

Raman spectroscopy is a label-free, chemically specific optical technique which provides detailed information about the chemical composition and structure of the excited analyte. Because of this, there is growing research interest in…

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