Results 241 to 250 of about 1,259,122 (370)

Improved Sensitivity in Large Field of View Multispectral Laser‐Scanning Photoacoustic Microscopy for Measuring Oxygen Saturation In Vivo

open access: yesJournal of Biophotonics, EarlyView.
Validation of large field of view multispectral laser‐scanning photoacoustic microscopy (LS‐MS‐PAM) for sO2 measurements. ABSTRACT Multispectral photoacoustic microscopy (PAM) using stimulated Raman scattering (SRS) has been employed to measure oxygen saturation (sO2) in biological tissue.
Mohsin Zafar   +3 more
wiley   +1 more source

Plasmonics‐Enhanced Characterization of Cervid PrP (87–114) Fragment Aggregates in Solution

open access: yesJournal of Biophotonics, EarlyView.
Multimodal nanophotonics platform combining plasmon‐enhanced imaging, label‐free SERS, and optical staining reveals new insights into the aggregation of the cervid PrP (87–114) fragment, an amyloidogenic sequence linked to chronic wasting disease susceptibility.
Shinki Midha   +4 more
wiley   +1 more source

Impact of Beam Profile on Raman Spectroscopy Measurements

open access: yesJournal of Raman Spectroscopy, EarlyView.
Characterisation and optimisation of the laser beam profile in Raman spectroscopy is critical to ensure accuracy and reproducibility of measurements. The laser beam size and profile have a significant effect on the axial resolution, energy distribution on the sample, focal spot size and excitation volume.
Dimitrios Tsikritsis   +7 more
wiley   +1 more source

Modular and Automated Workflow for Streamlined Raman Signal Analysis

open access: yesJournal of Raman Spectroscopy, EarlyView.
This study presents an automated workflow for preprocessing and analyzing Raman spectroscopy data, addressing key challenges such as noise suppression, baseline correction, and peak fitting using Voigt profiles. The method is validated on both synthetic and experimental spectra, demonstrating improved spectral fidelity and peak detection for biomedical
Mykyta Kizilov   +3 more
wiley   +1 more source

Experimental and Computational Raman and SERS Study of Acid Blue 113

open access: yesJournal of Raman Spectroscopy, EarlyView.
The vibrational features of AB‐113 were investigated through experimental and theoretical analyses. SERS spectra showed enhanced responses under resonant excitation, especially at 532 and 632.8 nm, enabling identification limits as low as 1.0 × 10−8 mol L−1.
Thayla C. A. Coelho   +2 more
wiley   +1 more source

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