Results 31 to 40 of about 62,280 (299)

Photobleaching by Spectralis Fixation Target [PDF]

JAMA Ophthalmology, 2016
The aim of this study is to determine whether the cross-shaped fixation target in a spectral-domain optical coherence tomography instrument (Spectralis; Heidelberg Engineering) could produce a cross-shaped increase fundus autofluorescence artifact on subsequent imaging.Thirty eyes of 15 healthy volunteers (8 women and 7 men; mean [SD] age 24 [3] years)
Tomasso L, Benatti L, Carnevali A, Mazzaferro A, Baldin G, Querques L, BANDELLO, FRANCESCO, QUERQUES , GIUSEPPE   +7 more
openaire   +4 more sources

Photobleaching with a subnanosecond laser flash [PDF]

Journal of Fluorescence, 1994
In standard fluorescence recovery after photobleaching (FRAP) applications for measuring lateral diffusion rates and adsorption/desorption kinetics of fluorescent molecules at biological or model membranes, irreversible bleaching is induced by a bright excitation flash of at least millisecond time scale. It has been presumed that the bleaching event is
Axelrod, Daniel, Yuan, Yifeng
openaire   +3 more sources

Experimental Analysis of Diurnal Variations in Humic-Like Fluorescent Dissolved Organic Matter in Surface Seawater

Frontiers in Marine Science, 2020
Humic-like fluorescent dissolved organic matter (FDOM) has been widely used as tracers for bio-refractory dissolved organic matter (RDOM) to understand its dynamics in the oceans.
Yuko Omori, Akira Saeki, Shigeki Wada, Yuji Inagaki, Takeo Hama, Takeo Hama   +5 more
doaj   +1 more source

Photobleaching and Recovery of Symbiodiniaceae Effrenium voratum SCS01 Reveals Life Form Transformation Under Thermal Stress

Frontiers in Marine Science, 2021
Dinoflagellates in the family Symbiodiniaceae contain a number of species and play an important role in the establishment of coral reef ecosystems in oligotrophic marine waters.
Sanqiang Gong, Sanqiang Gong, Gang Li, Gang Li, Xuejie Jin, Dajun Qiu, Dajun Qiu, Jiayuan Liang, Kefu Yu, Yehui Tan, Yehui Tan, Xiao Ma, Xiao Ma, Xiaomin Xia, Xiaomin Xia   +14 more
doaj   +1 more source

Fluorescent Membrane Probes Based on a Coumarin-Thiazole Scaffold

Acta Chimica Slovenica, 2019
Biological functions of cell membranes and their correlation to the heterogeneity of the latter’s lipid composition are still poorly understood. Fluorescence provides one of the most versatile tools for studying biological membranes.
Stane Pajk, Maja Garvas, Janez Štrancar
doaj   +1 more source

Monomer and Oligomer Transition of Zinc Phthalocyanine Is Key for Photobleaching in Photodynamic Therapy

Molecules, 2023
Photodynamic therapy (PDT) is recognized as a powerful method to inactivate cells. However, the photosensitizer (PS), a key component of PDT, has suffered from undesired photobleaching. Photobleaching reduces reactive oxygen species (ROS) yields, leading
Dafeng Liu, Longguang Jiang, Jincan Chen, Zhuo Chen, Cai Yuan, Donghai Lin, Mingdong Huang   +6 more
doaj   +1 more source

Oxygen- and pH-Dependent Photophysics of Fluorinated Fluorescein Derivatives: Non-Symmetrical vs. Symmetrical Fluorination

Sensors, 2020
Fluorescein, and derivatives of fluorescein, are often used as fluorescent probes and sensors. In systems where pH is a variable, protonation/deprotonation of the molecule can influence the pertinent photophysics.
Ciaran K. McLoughlin, Eleni Kotroni, Mikkel Bregnhøj, Georgios Rotas, Georgios C. Vougioukalakis, Peter R. Ogilby   +5 more
doaj   +1 more source

BAC Photobleaching in Bismuth-Doped and Bismuth/Erbium Co-Doped Optical Fibers

, 2020
Bismuth-doped optical fiber (BDF) and bismuth/erbium co-doped optical fiber (BEDF) have attracted much attention due to their ultra-broadband luminescence in the near-infrared (NIR) region.
Yan, B, Wen, J, Luo, Y ; https://orcid.org/, Binbin Yan, Ding, M, Wei, S, Jianxiang Wen, Mingjie Ding, Zhang, B ; https://orcid.org/, Peng, Gang Ding ; https://orcid.org/, Yanhua Luo, Gang-Ding Peng, Bowen Zhang, Shuen Wei   +13 more
core   +1 more source

Effect of UV and Visible Radiation on Optical Properties of Chromophoric Dissolved Organic Matter Released by Emiliania huxleyi

Journal of Marine Science and Engineering, 2020
Photodegradation is a natural process that strongly affects the chromophoric fraction of dissolved organic matter (DOM), especially in surface water of the oceans. In the euphotic zone, the concentration and quality of DOM are mostly dependent on primary
Simona Retelletti Brogi, Bruno Charrière, Margherita Gonnelli, Frédéric Vaultier, Richard Sempéré, Stefano Vestri, Chiara Santinelli   +6 more
doaj   +1 more source

Photobleaching alters the morphometric analysis of fluorescently labeled neurons and microglial cells

Pathology and Oncology Research
Photobleaching of immunofluorescence signal is a well-known phenomenon, however, its impact on derived parameters characterizing number and shape of different cell types in tissue sections is less understood. Our aim was to determine whether the duration
Tamás F. Polgár, Tamás F. Polgár, Krisztina Spisák, Krisztina Spisák, Zalán Kádár, Nora Alodah, Gabor J. Szebeni, Kata Klein, Roland Patai, László Siklós, Bernát Nógrádi, Bernát Nógrádi   +11 more
doaj   +1 more source