Results 11 to 20 of about 922,402 (315)

Electronic Spectroscopy of Isolated DNA Polyanions [PDF]

open access: yes, 2019
In solution, UV-vis spectroscopy is often used to investigate structural changes in biomolecules (i.e., nucleic acids), owing to changes in the environment of their chromophores (i.e., the nucleobases). Here we address whether action spectroscopy could achieve the same for gas-phase ions, while taking the advantage of additional spectrometric ...
Daly, Steven   +3 more
arxiv   +4 more sources

Strong photo-absorption by a single quantum wire in waveguide-transmission spectroscopy [PDF]

open access: yes, 2005
We measured the absorption spectrum of a single T-shaped, 14x6 nm lateral-sized quantum wire embedded in an optical waveguide using waveguide-transmission spectroscopy at 5 K. In spite of its small volume, the one-dimensional-exciton ground state shows a large absorption coefficient of 80 /cm, or a 98 % absorption probability for a single pass of the ...
Akiyama, Hidefumi   +6 more
arxiv   +3 more sources

Toluidine Blue for the Determination of Binding of Anionic Polysaccharides to Lipid Raft Domains by Absorption Spectroscopy [PDF]

open access: yesMembranes
The complexes of negatively charged polysaccharides with lipid vesicles have been shown to have applications in medicine, bioremediation, water purification, and construction of nano-biosensors.
Sandra Gębczyńska   +6 more
doaj   +2 more sources

Absorption spectroscopy at the ultimate quantum limit from single-photon states [PDF]

open access: yesNew Journal of Physics, 2017
Absorption spectroscopy is routinely used to characterise chemical and biological samples. For the state-of-the-art in laser absorption spectroscopy, precision is theoretically limited by shot-noise due to the fundamental Poisson-distribution of photon ...
R Whittaker   +6 more
doaj   +2 more sources

Relic Neutrino Absorption Spectroscopy [PDF]

open access: yes, 2004
Resonant annihilation of extremely high-energy cosmic neutrinos on big-bang relic anti-neutrinos (and vice versa) into Z-bosons leads to sizable absorption dips in the neutrino flux to be observed at Earth.
A. Blanchard   +95 more
core   +1 more source

Interpretation of X-ray Absorption Spectroscopy in the Presence of Surface Hybridization [PDF]

open access: yes, 2017
X-ray absorption spectroscopy yields direct access to the electronic and geometric structure of hybrid inorganic-organic interfaces formed upon adsorption of complex molecules at metal surfaces.
Diller, Katharina   +3 more
core   +2 more sources

Indirect measurement of infrared absorption spectrum through thermal emission of meta-cavity array [PDF]

open access: yesOptics Express 31, 39832 (2023), 2023
Controlling thermal emission is essential for various infrared spectroscopy applications. Metasurfaces can be utilized to control multiple degrees of freedom of thermal emission, enabling the compact thermal emission materials and devices. Infrared spectroscopy such as FTIR (Fourier transform infrared spectroscopy), usually requires external infrared ...
arxiv   +1 more source

The application of synchrotron radiation and in particular X-ray absorption spectroscopy to matrix isolated species [PDF]

open access: yes, 2014
This review provides comprehensive coverage of the application of X-ray absorption spectroscopy (XAS, XAFS, EXAFS, and XANES) to matrix isolated species.
Young, Nigel A.
core   +1 more source

Synthesis and properties of novel star-shaped oligofluorene conjugated systems with BODIPY cores

open access: yesBeilstein Journal of Organic Chemistry, 2014
Star-shaped conjugated systems with varying oligofluorene arm length and substitution patterns of the central BODIPY core have been synthesised, leading to two families of compounds, T-B1–T-B4 and Y-B1–Y-B4, with T- and Y-shaped motifs, respectively ...
Clara Orofino-Pena   +11 more
doaj   +1 more source

TWO DIFFERENT TYPES OF PHOTOCHEMISTRY IN PHYCOERYTHROCYANIN α-SUBUNIT [PDF]

open access: yes, 1993
The photochemical activities of phycoerythrocyanin α-subunits from Mastigocladus laminosus separated by isoelectric focusing were tested by irradiating at 500, 550, 577 and 600 nm.
Bjorn L. O.   +12 more
core   +1 more source

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