Results 21 to 30 of about 79,470 (290)

Label-free metabolic and structural profiling of dynamic biological samples using multimodal optical microscopy with sensorless adaptive optics

open access: yesScientific Reports, 2022
Label-free optical microscopy has matured as a noninvasive tool for biological imaging; yet, it is criticized for its lack of specificity, slow acquisition and processing times, and weak and noisy optical signals that lead to inaccuracies in ...
Rishyashring R. Iyer   +10 more
doaj   +1 more source

Manipulating the fluorescence lifetime at the sub-cellular scale via photo-switchable barcoding

open access: yesNature Communications, 2020
Using fluorescence lifetime as the readout modality offers more reproducible and quantitative outputs compared to conventional fluorescent barcoding, being independent of sample concentration and measurement methods.
Yujie Xie   +4 more
doaj   +1 more source

Enhanced detection of oral dysplasia by structured illumination fluorescence lifetime imaging microscopy

open access: yesScientific Reports, 2021
We demonstrate that structured illumination microscopy has the potential to enhance fluorescence lifetime imaging microscopy (FLIM) as an early detection method for oral squamous cell carcinoma.
Taylor A. Hinsdale   +8 more
doaj   +1 more source

Multiphoton microscopy can visualize zonal damage and decreased cellular metabolic activity in hepatic ischemia-reperfusion injury in rats [PDF]

open access: yes, 2011
Ischemia-reperfusion (I/R) injury is a common occurrence in liver surgery. In orthotopic transplantation, the donor liver is exposed to periods of ischemia and when oxygenated blood is reintroduced to the liver, oxidative stress may develop and lead to ...
Camilla A. Thorling   +9 more
core   +1 more source

Novel application of fluorescence lifetime and fluorescence microscopy enables quantitative access to subcellular dynamics in plant cells. [PDF]

open access: yesPLoS ONE, 2009
BACKGROUND: Optical and spectroscopic technologies working at subcellular resolution with quantitative output are required for a deeper understanding of molecular processes and mechanisms in living cells.
Kirstin Elgass   +5 more
doaj   +1 more source

Fluorescence-Lifetime Imaging Techniques for Microscopy [PDF]

open access: yes, 2003
CHAPTER 21 Fluorescence-Lifetime Imaging Techniques for Microscopy Chen Y. Dong, 1 Todd French, 2 Peter T. C. So, 1 C. Buehler, 1 Keith M. Berland, 3 and Enrico Gratton 1 Laboratory for Fluorescence Dynamics Department of Physics University of Illinois at Urbana-Champaign Urbana, Illinois 61801 Molecular Devices Corporation Sunnyvale, California 94089 ...
Dong, Chen Y   +5 more
openaire   +4 more sources

Electro-optic imaging enables efficient wide-field fluorescence lifetime microscopy

open access: yesNature Communications, 2019
Nanosecond imaging techniques, such as fluorescence lifetime imaging microscopy (FLIM), are limited by low efficiency of current detectors. Here, the authors implement an electro-optic approach using Pockels cells for wide-field image gating and ...
Adam J. Bowman   +3 more
doaj   +1 more source

Simple phasor-based deep neural network for fluorescence lifetime imaging microscopy

open access: yesScientific Reports, 2021
Fluorescence lifetime imaging microscopy (FLIM) is a powerful technique to probe the molecular environment of fluorophores. The analysis of FLIM images is usually performed with time consuming fitting methods.
Laurent Héliot, Aymeric Leray
doaj   +1 more source

Timing and Operating Mode Design for Time-Gated Fluorescence Lifetime Imaging Microscopy

open access: yesThe Scientific World Journal, 2013
Steady-state fluorence imaging and time-resolved fluorescence imaging are two important areas in fluorescence imaging research. Fluorescence lifetime imaging is an absolute measurement method which is independent of excitation laser intensity ...
Chao Liu   +3 more
doaj   +1 more source

Modern fluorescent techniques to investigate the mechanisms of lymphocyte activation [PDF]

open access: yesThe Ukrainian Biochemical Journal, 2015
Fluorescent proteins are promising tools for studying intracellular signaling processes in lymphocytes. This brief review summarizes fluorescence-based imaging techniques developed in recent years and discusses new methodological advances, such as ...
G. A. Liubchenko   +2 more
doaj   +1 more source

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