Results 81 to 90 of about 24,862 (237)

The contribution of anthropogenic bromine emissions to past stratospheric ozone trends: a modelling study [PDF]

Atmospheric Chemistry and Physics, 2009
Bromine compounds play an important role in the depletion of stratospheric ozone. We have calculated the changes in stratospheric ozone in response to changes in the halogen loading over the past decades, using a two-dimensional (latitude/height) model ...
B.-M. Sinnhuber, N. Sheode, M. Sinnhuber, M. P. Chipperfield, W. Feng   +4 more
doaj  

Halide‐Dependent Photoluminescence and Heavy‐Atom Effects in Low‐Melting Organic–Inorganic Manganese Halides

Advanced Functional Materials, EarlyView.
Two pyridinium‐based ionic liquid templated hybrid manganese halides, (C4Py)2[MnCl4] and (C4Py)2[MnBr4], display similar bulk structures but show significantly different photoluminescence behaviors due to the bromine heavy‐atom effect. Their stable local Mn environments remain intact even in the molten state, allowing applications such as luminescence ...
Biswajit Bhattacharyya, Christian Balischewski, Jiyong Kim, Tiago Duarte, Lianshe Fu, Rute A.S. Ferreira, Alkit Beqiraj, Iuliia Mikulska, Diego Gianolio, Eric Sperlich, Felix Stete, Wouter Koopman, Christina Günter, Katlen Brennenstuhl, Daniel Van Opdenbosch, Cordt Zollfrank, Armin Wedel, Beth J. Murray, Małgorzata Swadźba‐Kwaśny, Tillmann Klamroth, Michael U. Kumke, Verónica de Zea Bermudez, Andreas Taubert   +22 more
wiley   +1 more source

Using Soil Chemistry through EDXRF to Identify Archaeological Features at the Site of Ulpiana in Kosova

Kosova Anthropologica
Chemical analysis of archaeological sediments is a research area that has long interested archaeologists but has seen recent developments. It locates concentrations of chemical elements in soils that can be linked to ancient activities responsible for ...
Arthur Laenger, Arnaud Martel, Aline Durand, Fabien Boucher   +3 more
doaj   +1 more source

Engineering Strategies for Stable and Long‐Life Alkaline Zinc‐Based Flow Batteries

Advanced Functional Materials, EarlyView.
Alkaline zinc‐based flow batteries face persistent challenges from unstable zinc deposition, including dendrite growth, passivation, corrosion, and hydrogen evolution, which severely limit cycling stability. Current research addresses these issues through coordinated electrode structuring, electrolyte regulation, and membrane design to control zinc ...
Yuran Bai, Xiaoyu Huo, Xin Long, Enkang Fu, Xusong Gong, Lei Wei, Liang An   +6 more
wiley   +1 more source

Promising Anticancer Activity of Novel Hydroxyethyloxy and Bromo derivatives of Curcumin and Its Complexes with BF₂

Molecules
Curcumin has long been used for health purposes and is currently attracting significant research interest. In this study, we present a series of curcumin derivatives featuring structural modifications, including methoxy groups, short alcohol chains, and ...
Eduard Potapskyi, Dawid Lazewski , Julian Myszkiewicz, Gabriela Korzańska, Joanna Kuzminska , Łukasz Popenda, Artur Korzański, Agnieszka Zgoła-Grześkowiak, Agnieszka Gielara-Korzańska, Karolina Chmaj-Wierzchowska, Nataliya Finiuk, Yuliia Kozak, Iryna Ivasechko, Rostyslav Stoika, Roman Lesyk, Marcin Wierzchowski   +15 more
doaj   +1 more source

In‐Situ Solution Complexation for n‐Type Surface‐Energetics Reconstruction in 2.0 eV Ultra‐Wide‐Bandgap Perovskite Solar Cells

Advanced Functional Materials, EarlyView.
A reactive in situ solution complexation strategy reconstructs the surface of 2.0 eV ultra‐wide‐bandgap perovskites via proton transfer. This chemical modulation eliminates metallic defects and induces a degenerate‐like n‐type surface, establishing an Ohmic tunneling contact.
Saemon Yoon, Han‐Gyun Lim, Jinyoung Kim, Gyu Min Kim, Seojun Lee, Jun Ryu, SungWon Cho, Jincheol Kim, Hyosung Choi, Jung Sang Cho, Jongsung Park, Dong‐Won Kang   +11 more
wiley   +1 more source

Introducing bromine to the molecular structure as a strategy for drug design

Journal of Medical Science
Nowadays, the search for new pharmaceuticals has resulted in the development of thousands of new substances. One of the effective drug design strategies is to modify a previously obtained and studied substance.
Eduard Potapskyi, Karolina Kustrzyńska, Dawid Łażewski, Paulina Skupin-Mrugalska, Roman Lesyk, Marcin Wierzchowski   +5 more
doaj   +1 more source

Interfacial Modulation for High‐Efficiency Large‐Area Organic Photovoltaics and Perovskite‐Organic Tandem Solar Modules

Advanced Functional Materials, EarlyView.
Self‐assembled monolayers (SAMs) are promising hole‐transporting materials for organic photovoltaics (OPVs), but suffer from self‐aggregation and poor large‐area uniformity. We find that interfacial modification using nicotinic hydrazide can eliminate the residual SAM aggregates by forming energetically favorable complexes, yielding uniform SAM.
Seongwon Yoon, Kangsik Cho, Sungmin Park, Kyeongmin Kim, Hyungju Ahn, Junhyeong Kim, Ahyeon Jin, Uijoon Lee, Yoon Hee Jang, Yongseok Jun, Hae Jung Son   +10 more
wiley   +1 more source

Variation of bromine concentration as an essential trace element in human milk over lactation stages

Journal of Pharmacy
Introduction:  Bromine has been newly discovered in human milk but its importance in the growth and development of infants is unclear. Only a few studies have reported the concentration of bromine in human milk and considered it as an essential element,
Nor Hidayah Mohd Taufek, Awis Sukarni Mohmad Sabere, Ummi Syahidah Mohamad Jamahari, Nur Balkhis Amran, Abdul Rahman Fata Nahas, Joseph Bidai   +5 more
doaj   +1 more source

Elucidating the Role of Surface Ligands on the Oxidative Etching of Au Bipyramids During Photothermia Using Liquid Cell Transmission Electron Microscopy

Advanced Functional Materials, EarlyView.
Gold bipyramids can act as efficient plasmonic nanoheaters, but they often reshape during laser heating. This study shows that oxygen nanobubbles drive oxidative etching and that surface ligands control stability. CTAB‐ and citrate‐coated particles blunt and lose optical performance, whereas polystyrene sulfonate preserves shape and heating by ...
Irene López‐Sicilia, Valentina Girelli Consolaro, Sophie Marbach, Nancy Rahbany, Grégoire Petit, Ovidiu Ersen, Juan J. Giner‐Casares, Ali Abou‐Hassan   +7 more
wiley   +1 more source