Results 51 to 60 of about 1,049,609 (265)

Fast image reconstruction for fluorescence microscopy

open access: yesAIP Advances, 2012
Real-time image reconstruction is essential for improving the temporal resolution of fluorescence microscopy. A number of unavoidable processes such as, optical aberration, noise and scattering degrade image quality, thereby making image reconstruction ...
Mahesh Ravi Varma   +2 more
doaj   +1 more source

Fluorescence Microscopy—An Outline of Hardware, Biological Handling, and Fluorophore Considerations

open access: yesCells, 2021
Fluorescence microscopy has become a critical tool for researchers to understand biological processes at the cellular level. Micrographs from fixed and live-cell imaging procedures feature in a plethora of scientific articles for the field of cell ...
Shane M. Hickey   +12 more
doaj   +1 more source

Performance of LED-Based Fluorescence Microscopy to Diagnose Tuberculosis in a Peripheral Health Centre in Nairobi. [PDF]

open access: yes, 2011
Sputum microscopy is the only tuberculosis (TB) diagnostic available at peripheral levels of care in resource limited countries. Its sensitivity is low, particularly in high HIV prevalence settings. Fluorescence microscopy (FM) can improve performance of
A Cambanis   +33 more
core   +5 more sources

ixFLIM: Interferometric Excitation Fluorescence Lifetime Imaging Microscopy [PDF]

open access: yesarXiv, 2023
Fluorescence lifetime imaging microscopy (FLIM) is a well-established technique with numerous imaging applications. Yet, one of the limitations of FLIM is that it provides information about the emitting state only. Here, we present an extension of FLIM by interferometric measurement of fluorescence excitation spectra.
arxiv  

Integral refractive index imaging of flowing cell nuclei using quantitative phase microscopy combined with fluorescence microscopy [PDF]

open access: yesOpt. Express 9, 1177-1189 (2018), 2019
We suggest a new multimodal imaging technique for quantitatively measuring the integral (thickness-average) refractive index of the nuclei of live biological cells in suspension. For this aim, we combined quantitative phase microscopy with simultaneous 2-D fluorescence microscopy.
arxiv   +1 more source

Fluorescence radial fluctuation enables two-photon super-resolution microscopy

open access: yesFrontiers in Cellular Neuroscience, 2023
Despite recent improvements in microscopy, it is still difficult to apply super-resolution microscopy for deep imaging due to the deterioration of light convergence properties in thick specimens.
Motosuke Tsutsumi   +7 more
doaj   +1 more source

High performance, LED powered, waveguide based total internal reflection microscopy. [PDF]

open access: yes, 2013
Total internal reflection fluorescence (TIRF) microscopy is a rapidly expanding optical technique with excellent surface sensitivity and limited background fluorescence. Commercially available TIRF systems are either objective based that employ expensive
Cohen, Daniel A   +3 more
core   +1 more source

Making tau amyloid models in vitro: a crucial and underestimated challenge

open access: yesFEBS Letters, EarlyView.
This review highlights the challenges of producing in vitro amyloid assemblies of the tau protein. We review how accurately the existing protocols mimic tau deposits found in the brain of patients affected with tauopathies. We discuss the important properties that should be considered when forming amyloids and the benchmarks that should be used to ...
Julien Broc, Clara Piersson, Yann Fichou
wiley   +1 more source

Three-dimensional bi-functional refractive index and fluorescence microscopy (BRIEF) [PDF]

open access: yesarXiv, 2020
Fluorescence microscopy is a powerful tool for imaging biological samples with molecular specificity. In contrast, phase microscopy provides label-free measurement of the sample's refractive index (RI), which is an intrinsic optical property that quantitatively relates to cell morphology, mass, and stiffness.
arxiv  

Common-path multimodal optical microscopy [PDF]

open access: yes, 2009
We have developed a common-path multimodal optical microscopy system that is capable of using a single optical source and a single camera to image amplitude, phase, and fluorescence features of a biological specimen.
Kothapalli, Sri-Rajasekhar   +4 more
core   +1 more source

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