Results 101 to 110 of about 10,641,169 (227)

Cobalt‐Catalyzed C─N Bond Formation via Metal‐Hydride Hydrogen Atom Transfer (MHAT)

Angewandte Chemie, EarlyView.
Cobalt‐catalyzed metal‐hydride hydrogen atom transfer (Co‐MHAT) converts simple alkenes into C─N bonds under mild, near‐neutral conditions. A shared Co─H‐initiated radical/organocobalt intermediate is channeled into radical trapping, radical‐polar crossover, or radical ligand transfer, unifying hydroamination, hydroazidation, hydroamidation, and remote
Arman Khosravi, Ming‐Yu Ngai
wiley   +2 more sources

Short-Term Evaluation of Woodland Strawberry in Response to Melatonin Treatment under Low Light Environment

Horticulturae
The cultivation of strawberries in controlled environments presents challenges related to environmental stressors, especially insufficient light. Melatonin, as a widely investigated plant growth regulator, was considered as a potential candidate to ...
Yunlong Shi, Xiaobin Fan, Yahan Sun, Zhiru Yu, Yan Huang, Danlei Li, Zhizhong Song, Kai Zhang, Hongxia Zhang   +8 more
doaj   +1 more source

Interface‐Confined Cavitation at an MXene/TiO2 Schottky Heterointerface for Non‐Thermal Juice Preservation

Advanced Science, EarlyView.
This work establishes an MXene/TiO2 Schottky heterointerface for non‐thermal sonocatalysis. Interface‐confined cavitation and dynamic Ti3+/V₀ shuttles drive charge transport and reactive oxygen species (ROS) generation. The platform achieves 3‐log pathogen reduction while retaining heat‐labile nutrients in complex food matrices, redefining sonocatalyst
Xiaoge Wu, Yunxiao Zhu, Nan Qin, Zhaoli Zhang, Qi Zhang, Yang Tao   +5 more
wiley   +1 more source

Site Density Governs Switching Reactivity Regimes During Aerobic C─H Oxidation in Mn Single‐Atom Photocatalysts

Angewandte Chemie, EarlyView.
Increasing the density of isolated manganese (Mn) atoms in carbon nitride (CNx) photocatalysts does not continuously improve performance. Instead, beyond a critical loading, the polymer support reorganizes, altering charge‐carrier dynamics and oxygen activation while preserving atomic dispersion.
Viktoria Velichko, Agustín de Arriba, Areti Moutsiou, Elisabetta Inico, Andrea Olivati, Berta Pérez‐Román, Jesús López‐Sánchez, Ik Seon Kwon, Andrea Tonelli, Abhijit Roy, Valentina De Renzi, Raul Arenal, Annamaria Petrozza, Carlo Cavallotti, Gianvito Vilé   +14 more
wiley   +2 more sources

Morphophysiology of cowpea under salt stress and application of carbon-based nanobiostimulant in the vegetative stage

Revista Brasileira de Engenharia Agrícola e Ambiental
Several technologies have been implemented to improve plant performance in irrigated crops, and one of them is the use of nanobiostimulants. Therefore, the aim of the present study was to explore the effects of applying different concentrations of a ...
Letícia K. B. de Oliveira, Rafael S. da Costa, Johny de S. Silva, Bruna A. da Silva, Késsia V. G. de Lima, Maria B. dos S. Pinto, Ana B. P. Batista, Felipe J. L. da Silva, Toshik I. da Silva, Rosilene O. Mesquita   +9 more
doaj   +1 more source

Photosystem II functionality in barley responds dynamically to changes in leaf manganese status

Frontiers in Plant Science, 2016
A catalytic manganese (Mn) cluster is required for the oxidation of water in the oxygen-evolving complex (OEC) of photosystem II (PSII) in plants. Despite this essential role of Mn in generating the electrons driving photosynthesis, limited information ...
Sidsel Birkelund Schmidt, Marta Powikrowska, Ken Suszkiewicz Krogholm, Bianca Naumann-Busch, Jan K. Schjoerring, Søren Husted, Poul Erik Jensen, Pai Rosager Pedas, Pai Rosager Pedas   +8 more
doaj   +1 more source

Advancing Energy Materials by In Situ Atomic Scale Methods

Advanced Energy Materials, Volume 15, Issue 11, March 18, 2025.
Progress in in situ atomic scale methods leads to an improved understanding of new and advanced energy materials, where a local understanding of complex, inhomogeneous systems or interfaces down to the atomic scale and quantum level is required. Topics from photovoltaics, dissipation losses, phase transitions, and chemical energy conversion are ...
Christian Jooss, Michael Seibt, Martin Wenderoth, Oliver Bünermann, Ole Bunjes, Till Domröse, Christian Eckel, Francesca Falorsi, Christoph Flathmann, Monica Kolek Martinez de Azagra, Matthias Krüger, Jonas Lindner, Tobias Meyer, Claus Ropers, Ulrich Ross, Kai Rossnagel, Sreeju Sreekantan Nair Lalithambika, Simone Techert, Georg A. Traeger, Cynthia Volkert, R. Thomas Weitz, Alec M. Wodtke   +21 more
wiley   +1 more source

Catalyst‐Controlled Divergent Strain‐Release Amination and Skeletal Remodeling of Bicyclo[1.1.0]Butanes

Angewandte Chemie, EarlyView.
Catalyst‐controlled nitrene transfer unlocks divergent reactivity of bicyclo[1.1.0]butanes. Rhodium catalysis promotes selective strain‐release amination to access cyclobutene and cyclobutane amino‐acid scaffolds, whereas visible‐light photocatalysis redirects nitrene reactivity toward double amination and skeletal remodeling, providing a complementary
Aksar Ali, Lennard Kloene, Justus Koedel, Yifan Guo, Minakshi Altia, Rene M. Koenigs   +5 more
wiley   +2 more sources

Gas exchange and chlorophyll fluorescence research on different position leaves of rice plant

浙江大学学报. 农业与生命科学版, 2007
Responses of gas exchange and chlorophyll fluorescence parameters to photosynthetic photon densities (PFD), and alternations in contents of photosynthetic pigments, nitrogen and phosphorus were investigated in different position leaves at the heading day
SUN Jun-wei, FU Xian-shu, XI Hui, CAI Chong, WANG Teng-hao   +4 more
doaj   +1 more source

Photoswitchable Ambiphilicity: Light‐Gated Frustrated Lewis Pair Reactivity and Z‐Type Interaction

Angewandte Chemie, EarlyView.
Light‐controlled ambiphilicity is realized in photoswitchable intramolecular phosphorus/boron Lewis pairs. Reversible switching modulates both the thermodynamics and kinetics of frustrated Lewis‐pair reactivity, enabling light‐gated CO2 binding and release.
Lennart Stoess, Emil L. M. Paulin, Fabian Michel, Lutz Greb   +3 more
wiley   +2 more sources