Fluorescence lifetime imaging through scattering media

Abstract Fluorescence lifetime determination has proven to be useful, e.g. identification of molecules, quantitative estimation of species concentration and determination of temperatures. Lifetime determination of exponentially decaying signals is challenging if signals of different decay rates are...

Full description

Bibliographic Details
Main Authors: Sebastian Nilsson, Elias Kristensson, Marcus Aldén, Joakim Bood, Andreas Ehn
Format: Article
Language:English
Published: Nature Portfolio 2023-02-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-023-30055-7
_version_ 1797864610889465856
author Sebastian Nilsson
Elias Kristensson
Marcus Aldén
Joakim Bood
Andreas Ehn
author_facet Sebastian Nilsson
Elias Kristensson
Marcus Aldén
Joakim Bood
Andreas Ehn
author_sort Sebastian Nilsson
collection DOAJ
description Abstract Fluorescence lifetime determination has proven to be useful, e.g. identification of molecules, quantitative estimation of species concentration and determination of temperatures. Lifetime determination of exponentially decaying signals is challenging if signals of different decay rates are being mixed, resulting in erroneous results. Such issues occur when the contrast of the measurement object is low, which can be limiting in applied measurements due to spurious light scattering. A solution is presented here where structured illumination is used to enhance image contrast in fluorescence lifetime wide-field imaging. Lifetime imaging determination was carried out using Dual Imaging Modeling Evaluation (DIME), and spatial lock-in analysis was used for removing spurious scattered signal to enable fluorescence lifetime imaging through scattering media.
first_indexed 2024-04-09T22:55:49Z
format Article
id doaj.art-221fa221b22d4863bfb7878d9f188f03
institution Directory Open Access Journal
issn 2045-2322
language English
last_indexed 2024-04-09T22:55:49Z
publishDate 2023-02-01
publisher Nature Portfolio
record_format Article
series Scientific Reports
spelling doaj.art-221fa221b22d4863bfb7878d9f188f032023-03-22T11:16:18ZengNature PortfolioScientific Reports2045-23222023-02-011311910.1038/s41598-023-30055-7Fluorescence lifetime imaging through scattering mediaSebastian Nilsson0Elias Kristensson1Marcus Aldén2Joakim Bood3Andreas Ehn4Combustion Physics, Department of Physics, Faculty of Engineering, Lund UniversityCombustion Physics, Department of Physics, Faculty of Engineering, Lund UniversityCombustion Physics, Department of Physics, Faculty of Engineering, Lund UniversityCombustion Physics, Department of Physics, Faculty of Engineering, Lund UniversityCombustion Physics, Department of Physics, Faculty of Engineering, Lund UniversityAbstract Fluorescence lifetime determination has proven to be useful, e.g. identification of molecules, quantitative estimation of species concentration and determination of temperatures. Lifetime determination of exponentially decaying signals is challenging if signals of different decay rates are being mixed, resulting in erroneous results. Such issues occur when the contrast of the measurement object is low, which can be limiting in applied measurements due to spurious light scattering. A solution is presented here where structured illumination is used to enhance image contrast in fluorescence lifetime wide-field imaging. Lifetime imaging determination was carried out using Dual Imaging Modeling Evaluation (DIME), and spatial lock-in analysis was used for removing spurious scattered signal to enable fluorescence lifetime imaging through scattering media.https://doi.org/10.1038/s41598-023-30055-7
spellingShingle Sebastian Nilsson
Elias Kristensson
Marcus Aldén
Joakim Bood
Andreas Ehn
Fluorescence lifetime imaging through scattering media
Scientific Reports
title Fluorescence lifetime imaging through scattering media
title_full Fluorescence lifetime imaging through scattering media
title_fullStr Fluorescence lifetime imaging through scattering media
title_full_unstemmed Fluorescence lifetime imaging through scattering media
title_short Fluorescence lifetime imaging through scattering media
title_sort fluorescence lifetime imaging through scattering media
url https://doi.org/10.1038/s41598-023-30055-7
work_keys_str_mv AT sebastiannilsson fluorescencelifetimeimagingthroughscatteringmedia
AT eliaskristensson fluorescencelifetimeimagingthroughscatteringmedia
AT marcusalden fluorescencelifetimeimagingthroughscatteringmedia
AT joakimbood fluorescencelifetimeimagingthroughscatteringmedia
AT andreasehn fluorescencelifetimeimagingthroughscatteringmedia