Results 1 to 10 of about 234,784 (289)

Cavity-enhanced Raman microscopy of individual carbon nanotubes [PDF]

open access: yesNature Communications, 2016
Enhancement techniques are a viable route to improve the intrinsically weak Raman scattering intensity. Here the authors demonstrate Purcell enhancement of Raman scattering in a tunable, high-finesse microcavity and use it for Raman imaging of individual
Thomas Hümmer   +5 more
doaj   +3 more sources

Improving spatial resolution of confocal Raman microscopy by super-resolution image restoration [PDF]

open access: yesOptics Express, 2016
A new super-resolution image restoration confocal Raman microscopy method (SRIR-RAMAN) is proposed for improving the spatial resolution of confocal Raman microscopy. This method can recover the lost high spatial frequency of the confocal Raman microscopy
Han Cui, Weiqian Zhao, Yun Wang
exaly   +3 more sources

Compound Raman microscopy for rapid diagnosis and antimicrobial susceptibility testing of pathogenic bacteria in urine [PDF]

open access: yesFrontiers in Microbiology, 2022
Rapid identification and antimicrobial susceptibility testing (AST) of bacteria are key interventions to curb the spread and emergence of antimicrobial resistance.
Weifeng Zhang   +9 more
doaj   +2 more sources

Bessel-beam illumination Raman microscopy. [PDF]

open access: yesBiomed Opt Express, 2022
We demonstrate the use of Bessel beams for side illumination slit-scanning Raman imaging for label-free and hyperspectral analysis of cell spheroids. The background elimination by the side illumination and the aberration-resistant Bessel beam drastically improves the image contrast in Raman observation, allowing label-free investigation of ...
Bando K   +6 more
europepmc   +3 more sources

Correlative Fluorescence and Raman Microscopy to Define Mitotic Stages at the Single-Cell Level: Opportunities and Limitations in the AI Era [PDF]

open access: yesBiosensors, 2023
Nowadays, morphology and molecular analyses at the single-cell level have a fundamental role in understanding biology better. These methods are utilized for cell phenotyping and in-depth studies of cellular processes, such as mitosis.
Csaba Voros   +11 more
doaj   +2 more sources

Confocal Raman Microscopy with Adaptive Optics. [PDF]

open access: yesACS Photonics
Confocal Raman microscopy, a highly specific and label-free technique for the microscale study of thick samples, often presents difficulties due to weak Raman signals. Inhomogeneous samples introduce wavefront aberrations that further reduce these signals, requiring even longer acquisition times.
Muñoz-Bolaños JD   +6 more
europepmc   +4 more sources

Super‐Resolution Vibrational Imaging Using Expansion Stimulated Raman Scattering Microscopy

open access: yesAdvanced Science, 2022
Stimulated Raman scattering (SRS) microscopy is an emerging technology that provides high chemical specificity for endogenous biomolecules and can circumvent common constraints of fluorescence microscopy including limited capabilities to probe small ...
Lixue Shi   +9 more
doaj   +2 more sources

Non-Uniform Distribution of Cryoprotecting Agents in Rice Culture Cells Measured by CARS Microscopy

open access: yesPlants, 2021
Cryoprotectants allow cells to be frozen in liquid nitrogen and cryopreserved for years by minimizing the damage that occurs in cooling and warming processes.
Fionna M. D. Samuels   +4 more
doaj   +1 more source

Assessment of Prediction Models for Punch Sticking in Tablet Formulations

open access: yesBritish Journal of Pharmacy, 2022
Punch sticking is a common tablet compression manufacturing issue experienced during late-stage large-scale manufacturing. Prediction of punch sticking propensity and identification of the sticking component is important for early-stage formulation ...
Edward Paul Rhodes   +5 more
doaj   +1 more source

Formation mechanisms of sub-micron pharmaceutical composite particles derived from far- and near-field Raman microscopy

open access: yesJournal of Pharmaceutical Analysis, 2021
Surface enhanced Raman spectroscopy (SERS) and confocal Raman microscopy are applied to investigate the structure and the molecular arrangement of sub-micron furosemide and polyvinylpyrrolidone (furosemide/PVP) particles produced by spray flash ...
Jakob Hübner   +3 more
doaj   +1 more source

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