Results 31 to 40 of about 2,746,497 (369)

Screening of antioxidant properties of the apple juice using the front-face synchronous fluorescence and chemometrics [PDF]

open access: yes, 2017
Fluorescence spectroscopy is gaining increasing attention in food analysis due to its higher sensitivity and selectivity as compared to other spectroscopic techniques. Synchronous scanning fluorescence technique is particularly useful in studies of multi-
A Gliszczyńska-Świgło   +52 more
core   +1 more source

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

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

Experimental determination of tantalum L-shell fluorescence yields and Coster-Kronig transition probabilities [PDF]

open access: yesarXiv, 2022
Using radiometrically calibrated instrumentation of Physikalisch-Technische Bundesanstalt, the L-shell fluorescence yields and Coster-Kronig factors of tantalum (including the uncertainty budget) were experimentally determined based on transmission and X-ray fluorescence experiments.
arxiv  

Characterization of the aggregation-induced enhanced emission of N,N'-bis(4-methoxysalicylide)benzene-1,4-diamine [PDF]

open access: yes, 2015
© 2015 Springer Science+Business Media New York. N,N′-bis(4-methoxysalicylide)benzene-1,4-diamine (S1) was synthesized from 4-methoxysalicylaldehyde and p-phenylenediamine and it was found to exhibit interesting aggregation-induced emission enhancement ...
Mu, Lan   +5 more
core   +1 more source

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

Scan-less full-field fluorescence-lifetime dual-comb microscopy using two-dimensional spectral mapping and frequency multiplexing of dual-optical-comb beats [PDF]

open access: yesScience Advances, Vol. 7, no. 1, eabd2102 (2021), 2020
Fluorescence lifetime imaging microscopy (FLIM) is a powerful tool for quantitative fluorescence imaging because fluorescence lifetime is independent of concentration of fluorescent molecules or excitation/detection efficiency and is robust to photobleaching.
arxiv   +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

Measurement of the pressure dependence of air fluorescence emission induced by electrons [PDF]

open access: yesAstropart.Phys.28:41-57,2007, 2007
The fluorescence detection of ultra high energy (> 10^18 eV) cosmic rays requires a detailed knowledge of the fluorescence light emission from nitrogen molecules, which are excited by the cosmic ray shower particles along their path in the atmosphere. We have made a precise measurement of the fluorescence light spectrum excited by MeV electrons in dry ...
arxiv   +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

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