Results 121 to 130 of about 209,633 (263)

Quenching of excited uranyl ion during its photochemical reduction with triphenylphosphine: Part IV - Effect of heterocyclic molecules [PDF]

, 1994
253-254The presence of heterocyclic compounds triggers off a competition between photo physical and photochemical annihilation of excited uranyl ion during its photochemical reduction with triphenylphosphine.
Sidhu, M S, Bhatia, P V K
core  

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

Use of Open Source Hardware and Software Platforms to Quantify Spectrally Dependent Differences in Photochemical Efficiency and Functional Absorption Cross Section within the Dinoflagellate Symbiodinium spp.

Frontiers in Marine Science, 2017
Active chlorophyll a fluorescence is an essential tool for understanding photosynthetic activity within cnidarian/dinoflagellate symbioses. Fluorescence measurement is typically achieved by utilizing a blue or red monochromatic excitation light source ...
Kenneth D. Hoadley, Mark E. Warner
doaj   +1 more source

Quenching of excited uranyl ion during its photochemical reduction by triphenylphosphine: Part III [PDF]

, 1993
517-520Relative rates of bimolecular quenching of excited uranyl ion by some mono and disubstituted benzene derivatives have been measured during its photochemical reduction with triphenylphosphine. For the related compounds in a series it has been found
Sidhu, M S, Singh, R J, Chahal, Paramjit
core  

A minimal mathematical model of nonphotochemical quenching of chlorophyll fluorescence [PDF]

, 2011
Copyright © 2010 Elsevier Ireland Ltd.
Lokstein, Heiko, Ebenhoeh, O., Tirok, K., Oliver Ebenhöh, Heiko Lokstein, Tirok, Katrin, Stephanie Schlede, Torsten Houwaart, Houwaart, Torsten, Houwaart, T., Schlede, S., Ebenhöh, Oliver, Lokstein, H., Schlede, Stephanie, Katrin Tirok, Ebenhöh, Oliver (Prof. Dr.)   +15 more
core   +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

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

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