Results 41 to 50 of about 210,311 (310)
Chemical fluorescence-based dye staining for 3-dimensional histopathology analysis
Animal Cells and Systems, 2022 Tissue clearing for 3-dimensional (3D) imaging is increasingly utilized in many biomedical applications, including the pathological examination of human biopsy specimens.
Hyun Jung Kim +3 more
doaj +1 more source
Two-photon fluorescence measurements of reversible photodegradation in a dye-doped polymer [PDF]
Y. Zhu, J. Zhou, and M. G. Kuzyk, " Two-photon fluorescence
measurements of reversible photodegradation in a dye-doped polymer," Opt.
Lett. 32, 958-960 (2007), 2007 We report on the dynamics of photodegradation and subsequent recovery of two-photon fluorescence in a dye-doped polymer. The energy dependence suggests that photo-degradation is a linear process while recovery is entropic. Such recovery could be useful to high-intensity devices such as two-photon absorbers, which can be used in many applications.
arxiv +1 more source
Self-Assembly of Pheophorbide-a on Poly-L-Lysine [PDF]
arXiv, 2021 Binding of Pheophorbide-a of to poly-L-lysine (PLL) have been studied in neutral aqueous buffered solutions of low and near-physiological ionic strengths with low ethanol content (2.4-5.9 %) a wide range of molar polymer-to-dye ratios (P/D) using absorption and polarized fluorescence spectroscopy, fluorimetric titration, fluorescence melting.
arxiv
Frontiers in Plant Science, 2023 Proanthocyanidins (PAs) are polymeric phenolic compounds found in plants and used in many industrial applications. Despite strong evidence of herbivore and pathogen resistance-related properties of PAs, their in planta function is not fully understood ...
Jamil Chowdhury +5 more
doaj +1 more source
Long-range Single Molecule Förster Resonance Energy Transfer Between Alexa Dyes in Zero-Mode Waveguides [PDF]
ACS Omega 2020, 5, 12, 6947-6955, 2020 Zero-mode waveguides (ZMW) nanoapertures milled in metal films were proposed to improve the FRET efficiency and enable single molecule FRET detection beyond the 10 nm barrier, overcoming the restrictions of diffraction-limited detection in a homogeneous medium. However, the earlier ZMW demonstrations were limited to the Atto 550 - Atto 647N fluorophore
arxiv +1 more source
3D visualization of additive occlusion and tunable full-spectrum fluorescence in calcite
Nature Communications, 2016 Introducing organic guests to a crystal is a convenient way to tailor its properties. Here, the authors occlude fluorescent dyes within calcite to reveal that additives can occupy distinct zones of a crystal, and strategically embed green, blue, and red ...
David C. Green +12 more
doaj +1 more source
Formation of fluorescent H aggregates of a cyanine dye in LB films and its effect on energy transfer [PDF]
J. Photochem Photobiol A 293 (2014) 57, 2014 Here we report the formation of fluorescent H aggregates of a cyanine dye Oxa18 in ultrathin film and its effect on energy transfer between Oxa18 and sRhb. Ideally H aggregate do not fluoresce. However, due to imperfect stacking of Oxa18 molecules in the aggregates, fluorescence occurred from Oxa18 H aggregates.
arxiv +1 more source
Enhancement of fluorescent properties of near-infrared dyes using clickable oligoglycerol dendrons [PDF]
, 2015 Near-infrared (NIR) fluorescent dyes are gaining increased attention due to their potential to serve as molecular probes for in vivo imaging. Here, we demonstrate that oligoglycerol dendrons effectively enhance the fluorescence properties of an NIR dye ...
Haag, Rainer +6 more
core +1 more source
New Microbes and New Infections, EarlyView., 2014 Abstract We describe a case of fungal keratitis due to Beauveria bassiana in a farmer with Fuchs' dystrophy, treated with amphotericin B. Surgery with penetrating keratoplasty was necessary to resolve the lesions. Susceptibility testing and molecular sequencing permitted the identification and treatment of this rare aetiological agent of invasive ...
M. Ligozzi +8 more
wiley +1 more source
Tinea capitis: dermoscopy and calcium fluorescent microscopy as highly efficient and precise diagnostic tools [PDF]
Anais Brasileiros de Dermatologia, 2020 Tinea capitis comprising of tinea favosa and kerion is mostly seen in school-aged children. Some tinea capitis often presented with insignificant findings under the naked eyes are easily overlooked.
Hui Xiao +3 more
doaj +1 more source