Results 71 to 80 of about 452,519 (325)

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

Radiosynthesis of [¹⁸F]-Labelled Pro-Nucleotides (ProTides)

Molecules, 2020
Phosphoramidate pro-nucleotides (ProTides) have revolutionized the field of anti-viral and anti-cancer nucleoside therapy, overcoming the major limitations of nucleoside therapies and achieving clinical and commercial success.
Alessandra Cavaliere, Katrin C. Probst, Stephen J. Paisey, Christopher Marshall, Abdul K. H. Dheere, Franklin Aigbirhio, Christopher McGuigan, Andrew D. Westwell   +7 more
doaj   +1 more source

Defect Analysis of the β– to γ–Ga2O3 Phase Transition

Advanced Functional Materials, EarlyView.
The role of defects at all the relevant stages of the β$\beta$‐ to γ$\gamma$‐Ga2O3 polymorph transition is investigated using a multi method approach. The positron annihilation spectroscopy based results show that the defect density decreases after the transition, and that changes in defect configuration within the γ phase occur with increasing ...
Umutcan Bektas, Maciej O. Liedke, Huan Liu, Fabian Ganss, Maik Butterling, Nico Klingner, René Hübner, Ilja Makkonen, Andreas Wagner, Gregor Hlawacek   +9 more
wiley   +1 more source

Positron Annihilation in the Nuclear Outflows of the Milky Way

, 2017
Observations of soft gamma rays emanating from the Milky Way from SPI/\textit{INTEGRAL} reveal the annihilation of $\sim2\times10^{43}$ positrons every second in the Galactic bulge.
Birnboim, Yuval, Crocker, Roland M., Panther, Fiona H., Ruiter, Ashley J., Seitenzahl, Ivo R.   +4 more
core   +1 more source

Ion‐Selective Microporous Membranes via One‐Step Copolymerization Enable High‐Performance Redox Flow Batteries

Advanced Functional Materials, EarlyView.
A scalable one‐step copolymerization strategy is developed to produce low‐cost microporous ion exchange membranes that boost both the efficiency and lifespan of flow batteries. When combined with organic electrolytes in aqueous systems, these membranes enable safe and cheap flow battery energy storage, supporting the widespread integration of renewable
Jiaye Liu, Chunchun Ye, Ying Ma, Rui Tan, Xiangwen Wang, Huiting Zhang, Peng Song, Quan‐Fu An   +7 more
wiley   +1 more source

Whole-body synthesis-secretion rates of long-chain n-3 PUFAs from circulating unesterified α-linolenic acid in unanesthetized rats

Journal of Lipid Research, 2009
Docosahexaenoic acid (DHA) and eicosapentaenoic acid (EPA), long-chain n-3 PUFAs important for brain and heart function, can be obtained from dietary fish products or by liver synthesis from α-linolenic acid (α-LNA).
Fei Gao, Dale Kiesewetter, Lisa Chang, Kaizong Ma, Jane M. Bell, Stanley I. Rapoport, Miki Igarashi   +6 more
doaj   +1 more source

Dynamics of positrons during relativistic electron runaway [PDF]

, 2018
Sufficiently strong electric fields in plasmas can accelerate charged particles to relativistic energies. In this paper we describe the dynamics of positrons accelerated in such electric fields, and calculate the fraction of created positrons that become
Embréus, Ola, Fülöp, Tünde, Hesslow, Linnea, Hoppe, Mathias, Papp, Gergely, Richards, Katya   +5 more
core   +2 more sources

Cold Quad‐Modal Nanocomplex for Precise and Quantitative In Vivo Stem Cell Tracking

Advanced Functional Materials, EarlyView.
Multimodal albumin–bismuth sulfide–superparamagnetic iron oxide (ABS) nanocomplexes are developed for stem cell tracking across four different imaging modalities: MRI, MPI, MSOT, and CT. Combining its flexibility with high sensitivity, this quad‐modal imaging agent enables a robust quantification of ABS‐labeled stem cells in vivo.
Ali Shakeri‐Zadeh, Chao Wang, Shreyas Kuddannaya, Saleem Yousf, Jeff W. M. Bulte   +4 more
wiley   +1 more source

Quality-based design and stability assessment of sodium 18F-fluoride radiopharmaceutical for PET imaging

Macedonian Journal of Chemistry and Chemical Engineering
This study presents the results of the stability assessment conducted on three production batches of sodium 18F-fluoride radiopharmaceutical intended for intravenous injection.
Marija Atanasova Lazareva, Maja Velickovska, Filip Jolevski, Katerina Kolevska, Maja Chochevska, Paulina Apostolova, Nevena Manevska, Ana Ugrinska, Emilija Janevik-Ivanovska   +8 more
doaj   +1 more source

A QED Model for Non-thermal Emission from SGRs and AXPs

, 2005
Previously, we showed that, owing to effects arising from quantum electrodynamics (QED), magnetohydrodynamic fast modes of sufficient strength will break down to form electron-positron pairs while traversing the magnetospheres of strongly magnetised ...
Hernquist, Lars, Heyl, Jeremy S.
core   +2 more sources