Results 31 to 40 of about 13,910 (212)

Selective photodissociation of tailored molecular tags as a tool for quantum optics

Beilstein Journal of Nanotechnology, 2017
Recent progress in synthetic chemistry and molecular quantum optics has enabled demonstrations of the quantum mechanical wave–particle duality for complex particles, with masses exceeding 10 kDa.
Ugur Sezer, Philipp Geyer, Moritz Kriegleder, Maxime Debiossac, Armin Shayeghi, Markus Arndt, Lukas Felix, Marcel Mayor   +7 more
doaj   +1 more source

Roles of UV light strength and auxiliary electric field in the photocatalytic degradation effect of organic contaminant

High Voltage, 2019
The accumulation of contaminants on the electrical devices could adversely affect the operation. The present work used photocatalytic functional material to coat on the surface of the electrical devices to prevent the influence of organic contamination ...
Lin YaoYu, Ma YanXiang, Bian XingMing, Sun PengCheng, Sun PengCheng   +4 more
doaj   +1 more source

TD-DFT Insight into Photodissociation of Co-C Bond in Coenzyme B12

Frontiers in Chemistry, 2014
Coenzyme B12 (AdoCbl) is one of the most biologically active forms of vitamin B12, and continues to be a topic of active research interest. The mechanism of Co-C bond cleavage in AdoCbl, and the corresponding enzymatic reactions are however, not well ...
Pawel Michal Kozlowski, Hui eLiu, Karina eKornobis, Piotr eLodowski, Maria eJaworska   +4 more
doaj   +1 more source

On the Energy-specific Photodissociation Pathways of 14N2 and 14N15N Isotopomers to N Atoms of Different Reactivity: A Quantum Dynamical Perspective

The Astrophysical Journal, 2023
Photodissociation of the nitrogen molecule in the vacuum ultraviolet (VUV) is a major source of reactive nitrogen atoms in the upper atmosphere of Earth and throughout the solar system.
Natalia Gelfand, Ksenia Komarova, Francoise Remacle, Raphael D. Levine   +3 more
doaj   +1 more source

Strain‐Activated Photo‐Dehalogenation Unlocks Low‐Energy One and Two‐Photon 3D Microfabrication

Advanced Functional Materials, EarlyView.
5,14‐NMI‐Cz acts, conversely to its 7,10‐NMI‐Cz(7,10‐'dibromo‐2‐(2,6‐diisopropylphenyl)‐1H‐benzo[lmn]carbazolo[9,1‐bc][2,8]phenanthroline‐1,3(2H)‐dione) counterpart, as modular photoinitiator with panchromatic photoactivity, featuring a weak C–Br bond from geometric strain for efficient Type I & II initiation. These studies demonstrate applicability of
Kacper Piskorz, Katarzyna Starzak, Malgorzata Noworyta, Konrad Cyprych, Krzysztof Bartkowski, Zahra Badri, Sukhvinder Dhiman, Cina Foroutan‐Nejad, Jaroslaw Mysliwiec, Marcin Lindner, Joanna Ortyl   +10 more
wiley   +1 more source

Advances in Photonic Materials and Integrated Devices for Smart and Digital Healthcare: Bridging the Gap Between Materials and Systems

Advanced Materials, EarlyView.
This article summarizes significant technological advancements in materials, photonic devices, and bio‐interfaced systems, which demonstrate successful applications for impacting human healthcare via improved therapies, advanced diagnostics, and on‐skin health monitoring.
Seunghyeb Ban, Hoon Yi, Jaejin Park, Yunuo Huang, Ki Jun Yu, Woon‐Hong Yeo   +5 more
wiley   +1 more source

Ultrahigh-density spin-polarized hydrogen isotopes from the photodissociation of hydrogen halides: new applications for laser-ion acceleration, magnetometry, and polarized nuclear fusion

Light: Science & Applications, 2021
Spin-polarized hydrogen: production by photodissociation A laser-based scheme to produce spin-polarized hydrogen (SPH) at much higher densities than conventional methods could create new opportunities in physics.
Alexandros K. Spiliotis, Michalis Xygkis, Michail E. Koutrakis, Konstantinos Tazes, Gregoris K. Boulogiannis, Chrysovalantis S. Kannis, Georgios E. Katsoprinakis, Dimitrios Sofikitis, T. Peter Rakitzis   +8 more
doaj   +1 more source

UV Photosensitive PMMA‐Based Nanocomposites Micropatterned by Laser for Product Traceability and Anticounterfeiting Applications

Advanced Materials Interfaces, EarlyView.
We introduce an anti‐counterfeiting solution using photoluminescent nanoparticles in PMMA polymer matrices. Through UV‐activated polymerization without photoinitiators, achieved via solvent modification, secure micromarkers are created within seconds using industrial laser systems.
Aïssatou Coumba Sow, Etienne Palleau, Isabelle Fabre‐Francke, Laurence Ressier   +3 more
wiley   +1 more source

Boron‐Doped Polycyclic Aromatic Hydrocarbons: Synthesis and Functional Properties

ChemistryEurope, EarlyView.
Herein, recent research on boron‐containing polycyclic aromatic hydrocarbons (B‐PAHs) is presented with particular emphasis on their synthesis. Covered compound classes include kinetically shielded, methylene‐tethered, and fully fused B‐PAHs as well as borata‐arenes and carbene‐stabilized B‐PAHs. In the last part, functional properties originating upon
Matthias Schnitzlein, Frank Würthner
wiley   +1 more source

Preparing sulfur nanoparticles and determining their effect on the photodegradation of polycarbonates [PDF]

مجلة جامعة الانبار للعلوم الصرفة
This study involved the preparation of sulfur nanoparticles using the extract of Ziziphus-spina leaves and examined their effect on the photodegradation of polycarbonate membranes with a thickness of (60±5) microns, after adding various ...
rand hassan, Hameed Ali, Muthanaa Sirhan
doaj   +1 more source