Results 61 to 70 of about 162,281 (356)

Reduction of three-band model for copper oxides to single-band generalized t~-~J model

, 1993
A three-band model for copper oxides in the region of parameters where the second hole on the copper has energy close to the first hole on the oxygen is considered. The exact solution for one hole on a ferromagnetic background of the ordered copper spins
A. L. Chernyshev, A.F. Barabanov, C. Castellani, C. Castellani, C. X. Chen, E. Dagotto, E. Gagliano, F.C. Zhang, F.C. Zhang, F.C. Zhang, G.L. Bir, H.B. Pang, J. Fink, J.L. Shen, K.J. von Szczepanski, M. Luchini, M.S. Hybertsen, P. Entel, S.V. Lovtsov, S.V. Lovtsov, V. I. Belinicher, V.I. Belinicher, V.J. Emery, V.J. Emery, V.J. Emery, V.V. Flambaum, W.E. Pickett, Y. Barry   +27 more
core   +1 more source

Immobilized photosensitizers for antimicrobial applications [PDF]

, 2015
Photodynamic antimicrobial chemotherapy (PACT) is a very promising alternative to conventional antibiotics for the efficient inactivation of pathogenic microorganisms; this is due to the fact that it is virtually impossible for resistant strains to ...
Boyle, Ross W., Spagnul, Cinzia, Turner, Lauren C.   +2 more
core   +1 more source

Quantum Emitters in Hexagonal Boron Nitride: Principles, Engineering and Applications

Advanced Functional Materials, EarlyView.
Quantum emitters in hexagonal boron nitride have emerged as a promising candidate for quantum information science. This review examines the fundamentals of these quantum emitters, including their level structures, defect engineering, and their possible chemical structures.
Thi Ngoc Anh Mai, Md Shakhawath Hossain, Nhat Minh Nguyen, Yongliang Chen, Chaohao Chen, Xiaoxue Xu, Quang Thang Trinh, Toan Dinh, Toan Trong Tran   +8 more
wiley   +1 more source

Extraction, Identification and Photo-Physical Characterization of Persimmon (Diospyros kaki L.) Carotenoids

Foods, 2017
Carotenoid pigments were extracted and purified from persimmon fruits using accelerated solvent extraction (ASE). Eleven pigments were isolated and five of them were clearly identified as all-trans-violaxanthine, all-trans-lutein, all-trans-zeaxanthin ...
Khalil Zaghdoudi, Orleans Ngomo, Régis Vanderesse, Philippe Arnoux, Bauyrzhan Myrzakhmetov, Céline Frochot, Yann Guiavarc’h   +6 more
doaj   +1 more source

Subcellular Singlet Oxygen and Cell Death: Location Matters

Frontiers in Chemistry, 2020
We developed a tool for targeted generation of singlet oxygen using light activation of a genetically encoded fluorogen-activating protein complexed with a unique dye molecule that becomes a potent photosensitizer upon interaction with the protein.
Pingping Liang, Pingping Liang, Pingping Liang, Dmytro Kolodieznyi, Dmytro Kolodieznyi, Yehuda Creeger, Byron Ballou, Marcel P. Bruchez, Marcel P. Bruchez, Marcel P. Bruchez   +9 more
doaj   +1 more source

NanoMOF‐Based Multilevel Anti‐Counterfeiting by a Combination of Visible and Invisible Photoluminescence and Conductivity

Advanced Functional Materials, EarlyView.
This study presents novel anti‐counterfeiting tags with multilevel security features that utilize additional disguise features. They combine luminescent nanosized Ln‐MOFs with conductive polymers to multifunctional mixed‐matrix membranes and powder composites. The materials exhibit visible/NIR emission and matrix‐based conductivity even as black bodies.
Moritz Maxeiner, Ruben Maile, Murat Cuvalli, Andreas Wolf, Ayisha Komal, Robert Oestreich, Christoph Janiak, Karl Mandel, Alexander Knebel, Klaus Müller‐Buschbaum   +9 more
wiley   +1 more source

Enrolling reactive oxygen species in photon-to-chemical energy conversion: fundamentals, technological advances, and applications

Advances in Physics: X, 2021
In theory, oxygen (O2) is an ideal chemical reagent because of its high relative abundance and negligible environmental toxicity. In practice however, by the nature of its ground state electronic configuration, many chemical reactions involving O2 are ...
Irving D. Rettig, Theresa M. McCormick
doaj   +1 more source

Copper‐based Materials for Photo and Electrocatalytic Process: Advancing Renewable Energy and Environmental Applications

Advanced Functional Materials, EarlyView.
Cu‐based catalysts as a cornerstone in advancing sustainable energy technologies are fully reviewed in this manuscript, highlighting their potential in photo‐ and electrocatalysis. It includes metallic copper, copper oxides, copper sulfides, copper halide perovskites, copper‐based metal–organic frameworks (MOFs), and covalent organic frameworks (COFs),
Jéssica C. de Almeida, Yanjie Wang, Thais A. Rodrigues, Paulo H. H. Nunes, Vagner R. de Mendonça, Paulo H. E. Falsetti, Leticia V. Savazi, Tao He, Alexandra V. Bardakova, Aida V. Rudakova, Jie Tian, Alexei V. Emeline, Osmando F. Lopes, Antonio Otavio T. Patrocínio, Jia Hong Pan, Caue Ribeiro, Detlef W. Bahnemann   +16 more
wiley   +1 more source

Spectroscopic study of methylene blue photophysical properties in biological media

Biomedical Photonics, 2023
A spectroscopic study of the photophysical properties of methylene blue (MB) in aqueous solutions was carried out. Absorption and fluorescence spectra as well as fluorescence lifetime were recorded. The concentration dependence of the intensity and shape
D. V. Pominova, A. V. Ryabova, I. D. Romanishkin, I. V. Markova, E. V. Akhlustina, A. S. Skobeltsin   +5 more
doaj   +1 more source

The T1 state of p-nitroaniline and related molecules: a CNDO/S study [PDF]

, 1983
The nature of the lowest energy triplet state (T1) of p-nitroaniline (PNA), N,N-dimethyl-p-nitroaniline (DMPNA) and nitrobenzene (NB) is reexamd. using the semiempirical CNDO/S-CI method with selected parameter options.
Bigelow, Richard W., Dick, Bernhard, Freund, Hans Joachim   +2 more
core   +1 more source