Results 41 to 50 of about 3,604,557 (398)

AO DIVER: Development of a three-dimensional adaptive optics system to advance the depth limits of multiphoton imaging

open access: yesAPL Photonics, 2020
Multiphoton microscopy (MPM) can non-invasively measure the dynamic biochemical properties deep in scattering biological samples and has the potential to accelerate clinical research with advances in deep tissue imaging.
S. Leemans   +3 more
doaj   +1 more source

On the absolute value of the air-fluorescence yield [PDF]

open access: yes, 2014
The absolute value of the air-fluorescence yield is a key parameter for the energy reconstruction of extensive air showers registered by fluorescence telescopes.
Arqueros, F., Blanco, F., Rosado, J.
core   +2 more sources

Comprehensive correlation analysis for super-resolution dynamic fingerprinting of cellular compartments using the Zeiss Airyscan detector

open access: yesNature Communications, 2018
Different fluorescence fluctuation methods require specialized equipment and cannot be performed simultaneously. Here the authors present an implementation that includes many advanced fluorescence fluctuation techniques in a single analysis, by ...
L. Scipioni   +3 more
doaj   +1 more source

Fluorescent taxoids

open access: yesChemistry & Biology, 1996
Taxol is a natural product produced by the Pacific Yew, Taxus brevifolia, that has emerged as a prominent chemotherapeutic agent for the treatment of solid tumors. Taxol's biochemical mode of action has been well studied: it binds to microtubules, stabilizing them and preventing their depolymerization to tubulin subunits.
Guy, R.K.   +3 more
openaire   +2 more sources

Absolute absorption and fluorescence measurements over a dynamic range of 10$^6$ with cavity-enhanced laser-induced fluorescence [PDF]

open access: yes, 2013
We describe a novel experimental setup that combines the advantages of both laser-induced fluorescence and cavity ring-down techniques. The simultaneous and correlated measurement of the ring-down and fluorescence signals yields absolute absorption ...
Berden G.   +7 more
core   +3 more sources

Optical Manipulation of Lanthanide-Doped Nanoparticles: How to Overcome Their Limitations

open access: yesFrontiers in Chemistry, 2020
Since Ashkin's pioneering work, optical tweezers have become an essential tool to immobilize and manipulate microscale and nanoscale objects. The use of optical tweezers is key for a variety of applications, including single-molecule spectroscopy ...
Elisa Ortiz-Rivero   +4 more
doaj   +1 more source

Excitation of emission lines by fluorescence and recombination in IC 418 [PDF]

open access: yes, 2011
We predict intensities of lines of CII, NI, NII, OI and OII and compare them with a deep spectroscopic survey of IC 418 to test the effect of excitation of nebular emission lines by continuum fluorescence of starlight.
Abrahamsson   +79 more
core   +2 more sources

Interaction vesicles as emerging mediators of host‐pathogen molecular crosstalk and their implications for infection dynamics

open access: yesFEBS Letters, EarlyView.
Interaction extracellular vesicles (iEVs) are hybrid vesicles formed through host‐pathogen communication. They facilitate immune evasion, transfer pathogens' molecules, increase host cell uptake, and enhance virulence. This Perspective article illustrates the multifunctional roles of iEVs and highlights their emerging relevance in infection dynamics ...
Bruna Sabatke   +2 more
wiley   +1 more source

Detection and Quantification of DNA by Fluorophore-Induced Plasmonic Current: A Novel Sensing Approach

open access: yesSensors
We report on the detection and quantification of aqueous DNA by a fluorophore-induced plasmonic current (FIPC) sensing method. FIPC is a mechanism described by our group in the literature where a fluorophore in close proximity to a plasmonically active ...
Daniel R. Pierce   +7 more
doaj   +1 more source

Laser-controlled fluorescence in two-level systems [PDF]

open access: yes, 2010
The ability to modify the character of fluorescent emission by a laser-controlled, optically nonlinear process has recently been shown theoretically feasible, and several possible applications have already been identified.
Allcock P.   +60 more
core   +1 more source

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