Results 11 to 20 of about 110,959 (369)

Measurement of Cyanine Dye Photobleaching in Photosensitizer Cyanine Dye Conjugates Could Help in Optimizing Light Dosimetry for Improved Photodynamic Therapy of Cancer

Molecules, 2018
Photodynamic therapy (PDT) of cancer is dependent on three primary components: photosensitizer (PS), light and oxygen. Because these components are interdependent and vary during the dynamic process of PDT, assessing PDT efficacy may not be trivial ...
Nadine S. James, Ravindra R. Cheruku, Joseph R. Missert, Ulas Sunar, Ravindra K. Pandey   +4 more
doaj   +2 more sources

Bleach correction ImageJ plugin for compensating the photobleaching of time-lapse sequences [version 1; peer review: 3 approved]

F1000Research, 2020
During the capturing of the time-lapse sequence of fluorescently labeled samples, fluorescence intensity exhibits decays. This phenomenon is known as 'photobleaching' and is a widely known problem in imaging in life sciences.
Kota Miura
doaj   +2 more sources

Depth-dependent autofluorescence photobleaching using 325, 473, 633, and 785 nm of porcine ear skin ex vivo [PDF]

Journal of Biomedical Optics, 2017
. Autofluorescence photobleaching describes the decrease of fluorescence intensity of endogenous fluorophores in biological tissue upon light irradiation. The origin of autofluorescence photobleaching is not fully understood.
Johannes Schleusener, Jürgen Lademann, Maxim E. Darvin   +2 more
openalex   +2 more sources

Near-infrared co-illumination of fluorescent proteins reduces photobleaching and phototoxicity

Nature Biotechnology, 2023
Here we present a method to reduce the photobleaching of fluorescent proteins and the associated phototoxicity. It exploits a photophysical process known as reverse intersystem crossing, which we induce by near-infrared co-illumination during fluorophore
Lucie Ludvíková, Emma Simon, Mathieu Deygas, Thomas Panier, Marie‐Aude Plamont, J. Ollion, Alison G. Tebo, M. Piel, Ludovic Jullien, Lydia Robert, T. Le Saux, A. Espagne   +11 more
semanticscholar   +1 more source

Effects of the sample matrix on the photobleaching and photodegradation of toluene-derived secondary organic aerosol compounds

Atmospheric Chemistry and Physics, 2022
. Secondary organic aerosol (SOA) generated from the photooxidation of aromatic compounds in the presence of oxides of nitrogen (NOx) is known to efficiently absorb ultraviolet and visible radiation.
Alexandra L. Klodt, Marley Adamek, Monica Q. Dibley, S. Nizkorodov, R. O’Brien   +4 more
semanticscholar   +1 more source

Harnessing cyanine photooxidation: from slowing photobleaching to near-IR uncaging

Current Opinion in Chemical Biology, 2016
Alexander P. Gorka, Martin J. Schnermann
openalex   +3 more sources

Photodynamics of Bright Subnanosecond Emission from Pure Single-Photon Sources in Hexagonal Boron Nitride

Nanomaterials, 2022
Bright and stable emitters of single indistinguishable photons are crucial for quantum technologies. The origin of the promising bright emitters recently observed in hexagonal boron nitride (hBN) still remains unclear.
Alexander V. Gritsienko, Aliaksandr Duleba, Mikhail V. Pugachev, Nikita S. Kurochkin, Igor I. Vlasov, Alexei G. Vitukhnovsky, Alexandr Yu. Kuntsevich   +6 more
doaj   +1 more source

Silencing Phytoene Desaturase Causes Alteration in Monoterpene Volatiles Belonging to the Methylerythritol Phosphate Pathway

Plants, 2022
Volatile organic compounds (VOCs) are a large group of lipophilic hydrocarbon compounds derived from different biosynthetic pathways in plants. VOCs are produced and released from plants as a defense mechanism against biotic and abiotic stresses.
Nabil Killiny
doaj   +1 more source

Some Secrets of Fluorescent Proteins: Distinct Bleaching in Various Mounting Fluids and Photoactivation of cyan fluorescent proteins at YFP-Excitation [PDF]

, 2011
Background The use of spectrally distinct variants of green fluorescent protein (GFP) such as cyan or yellow mutants (CFP and YFP, respectively) is very common in all different fields of life sciences, e.g. for marking specific proteins or cells
AF Fradkov, AG Harpur, Andreas Hofmann, C Dinant MEVRWVABH, C Thaler, DW Piston, EA Jares-Erijman, EB Van Munster, FS Wouters, FS Wouters, G Valentin, H-w Ai, J Goedhart, JA Schmid, JA Schmid, JA Schmid, JM Lingbeck, Johannes A. Schmid, K Ebner, L Abrami, M Ormo, MA Rizzo, MK Raarup, MT Kirber, Naila Malkani, NC Shaner, PI Bastiaens, PI Bastiaens, RY Tsien, SE Verrier, T Karpova, T Nagai, TB McAnaney, TW Gadella Jr   +33 more
core   +9 more sources

PDT-Induced Variations of Radachlorin Fluorescence Lifetime in Living Cells In Vitro

Photonics, 2023
Variations in the fluorescence lifetimes of Radachlorin photosensitizers in HeLa and A549 cells, caused by photodynamic treatment, were studied using fluorescence lifetime imaging microscopy (FLIM).
Andrey V. Belashov, Anna A. Zhikhoreva, Anna V. Salova, Tatiana N. Belyaeva, Ilia K. Litvinov, Elena S. Kornilova, Irina V. Semenova   +6 more
doaj   +1 more source