Articles with "raman" as a keyword



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Raman Ink for Steganography

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Published in 2021 at "Advanced Optical Materials"

DOI: 10.1002/adom.202002038

Abstract: Steganography, also known as “invisible” communication, refers to the technique of hiding information into another medium such as video, audio, image, and text. Surface‐enhanced Raman scattering (SERS) nanotags are well suited to information encoding owing… read more here.

Keywords: raman; ink steganography; information; raman ink ... See more keywords
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Modeling the Ultrafast Response of Two‐Magnon Raman Excitations in Antiferromagnets on the Femtosecond Timescale

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Published in 2019 at "Annalen der Physik"

DOI: 10.1002/andp.201900439

Abstract: Illuminating a magnetic material with femtosecond laser pulses induces complex ultrafast dynamical processes. The resulting optically detectable response usually contains contributions from both the optical properties and the magnetic degrees of freedom. Disentangling all the… read more here.

Keywords: two magnon; raman; femtosecond timescale; response ... See more keywords
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Depth-resolved multimodal imaging: Wavelength modulated spatially offset Raman spectroscopy with optical coherence tomography.

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Published in 2018 at "Journal of biophotonics"

DOI: 10.1002/jbio.201700129

Abstract: A major challenge in biophotonics is multimodal imaging to obtain both morphological and molecular information at depth. We demonstrate a hybrid approach integrating optical coherence tomography (OCT) with wavelength modulated spatially offset Raman spectroscopy (WM-SORS).… read more here.

Keywords: optical coherence; depth; raman; multimodal imaging ... See more keywords
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Inverse spatially-offset Raman spectroscopy using optical fibers - An axicon lens free approach.

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Published in 2019 at "Journal of biophotonics"

DOI: 10.1002/jbio.201900140

Abstract: Inverse spatially offset Raman spectroscopy seeks to interrogate deep inside a Raman-active, layered, diffusely scattering sample. It makes a collimated laser beam incident onto the sample surface in the form of concentric illumination rings (of… read more here.

Keywords: inverse spatially; raman; spatially offset; spectroscopy ... See more keywords
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Multimodal Vibrational Studies Of Drug Uptake In Vitro: Is The Whole Greater Than The Sum Of Their Parts?

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Published in 2020 at "Journal of biophotonics"

DOI: 10.1002/jbio.202000264

Abstract: Herein, we investigated the use of multimodal Raman and infrared (IR) spectroscopic microscopy for the elucidation of drug uptake and subsequent cellular responses. Firstly, we compared different methods for the analysis of the combined data.… read more here.

Keywords: raman; analysis; vibrational studies; multimodal vibrational ... See more keywords
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Featuring few essential Raman spectroscopic signatures between heterogeneous cells

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Published in 2022 at "Journal of Biophotonics"

DOI: 10.1002/jbio.202100338

Abstract: Here we demonstrate it is instructive to quantify cell Raman spectroscopy by sparse regularization. To be able to extract the specific spectral differences in a heterogeneous cell system with great spectroscopic similarities derived from many… read more here.

Keywords: featuring essential; essential raman; raman spectroscopic; spectroscopic signatures ... See more keywords
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In vivo Raman spectroscopy for bladder cancer detection using a superficial Raman probe compared to a non-superficial Raman probe.

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Published in 2022 at "Journal of biophotonics"

DOI: 10.1002/jbio.202100354

Abstract: Raman spectroscopy is promising as a non-invasive tool for cancer diagnosis. A superficial Raman probe might improve classification of bladder cancer, because information is gained solely from the diseased tissue and irrelevant information from deeper… read more here.

Keywords: cancer; spectroscopy; raman; superficial raman ... See more keywords
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Demonstration of a compact deep UV Raman spatial heterodyne spectrometer for biologics analysis

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Published in 2022 at "Journal of Biophotonics"

DOI: 10.1002/jbio.202200021

Abstract: Monoclonal antibodies and antibody fragments are increasingly important classes of biotherapeutics. However, these products are both challenging and expensive to manufacture. New process analytical technologies used to monitor these products during their manufacture are of… read more here.

Keywords: raman; spatial heterodyne; deep raman; heterodyne spectrometer ... See more keywords
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Quantitative determination of concentration profiles of skin components and topically applied oils by tailored multivariate curve resolution‐alternating least squares using in vivo confocal Raman micro‐spectroscopy

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Published in 2022 at "Journal of Biophotonics"

DOI: 10.1002/jbio.202200219

Abstract: The main components of the stratum corneum (SC), water, lipids, and proteins, are non‐homogeneously distributed throughout the depth. The quantitative determination of their concentration profiles and penetration depth of topically applied substances are urgent topics… read more here.

Keywords: quantitative determination; spectroscopy; topically applied; raman ... See more keywords
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Multimodal Raman spectroscopy and optical coherence tomography for biomedical analysis

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Published in 2022 at "Journal of Biophotonics"

DOI: 10.1002/jbio.202200231

Abstract: Optical techniques hold great potential to detect and monitor disease states as they are a fast, non‐invasive toolkit. Raman spectroscopy (RS) in particular is a powerful label‐free method capable of quantifying the biomolecular content of… read more here.

Keywords: optical coherence; spectroscopy; raman; raman spectroscopy ... See more keywords
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A complete Raman study of common acid red dyes: application to the identification of artistic materials in polychrome prints

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Published in 2017 at "Journal of Raman Spectroscopy"

DOI: 10.1002/jrs.5082

Abstract: In this work, we present a complete Raman investigation of a class of compounds that has not received great attention yet, the red naphthol-based azo dyes. We selected a group of red azo dyes often… read more here.

Keywords: raman; study; acid red; red acid ... See more keywords