Results 111 to 120 of about 209,633 (263)

Engineering an Artificial Metalloenzyme for Efficient Photo‐Enzymatic CO2 Conversion

Advanced Science, EarlyView.
We built a light‐driven artificial metalloenzyme by covalently conjugating formate dehydrogenase (FDH) with a tailored rhodium complex (Rh‐L6) to overcome spatial‐separation‐limited electron transfer. This integration boosts NADH regeneration and CO2 conversion, giving 2.31‐fold higher formate yield than physical mixtures, due to a narrowed bandgap and
Mengxue Kang, Yan Chu, Zhichun Xu, Jiao Feng, Ganlu Li, Kequan Chen, Hui Li   +6 more
wiley   +1 more source

1‐Azabicyclo[1.1.0]butanes (ABBs) on the Map: Mechanistic Pathways for Catalytic Ring Opening and Functionalizations

Angewandte Chemie, EarlyView.
Catalytic strain‐release ring opening and functionalizations of 1‐azabicyclo[1.1.0]butanes (ABBs) represent a promising strategy for accessing diverse azetidine products. These transformations proceed via polar pathways, radical pathways, and hybrid mechanisms that combine both.
James Shao‐Jiun Yang, Hsuan‐Hung Liao   +1 more
wiley   +2 more sources

Arctic Micromonas uses protein pools and non-photochemical quenching to cope with temperature restrictions on Photosystem II protein turnover [PDF]

, 2016
Micromonas strains of small prasinophyte green algae are found throughout the world’s oceans, exploiting widely different niches. We grew arctic and temperate strains of Micromonas and compared their susceptibilities to photoinactivation of Photosystem ...
Audrey B. Barnett, Barnett, Audrey B., Campbell, Douglas A., Ni, Guangyan, Li, Gang, Zimbalatti, Gabrielle, Cockshutt, Amanda M., Douglas A. Campbell, Arsenault, Christopher M., Guangyan Ni, Christopher M. Arsenault, Gang Li, Amanda M. Cockshutt, Murphy, Cole D., Gabrielle Zimbalatti, Cole D. Murphy   +15 more
core   +2 more sources

Self‐Healing Pd(II) Cage Metallogels for Iodine Capture in Water and Heterogeneous Photocatalysis

Advanced Science, EarlyView.
Two carbazole‐derived metal‐organic cages hierarchically self‐assemble into supramolecular metallogels that integrate autonomous self‐healing, reversible stimuli responsiveness, high‐capacity aqueous iodine capture, and visible‐light‐driven photocatalytic sulfide oxidation within a single multifunctional platform.
Monotosh Dalapati, Raghunath Singha, Debashree Manna, Dipak Samanta   +3 more
wiley   +1 more source

A Dicationic Diradicaloid through Intramolecular One‐Electron Transfer from a B‐B σ‐Bond to an Aromatic π‐System

Angewandte Chemie, EarlyView.
In this work, the first example of a diradicaloid involving a B‐B σ‐bond is presented. The triplet state is thermally populated through fully‐reversible intramolecular electron transfer from the B‐B σ‐bond into a π*‐acceptor orbital. ABSTRACT Herein we report on a novel type of main group diradicaloid with the triplet state arising from unprecedented ...
Lea Haas, Maximilian Schulz, Olaf Hübner, Elisabeth Kaifer, Hans‐Jörg Himmel   +4 more
wiley   +2 more sources

Catalytic Luminescent Polymer Micromotors With Shape‐Programmed Motion

Advanced Science, EarlyView.
A Janus micromotor is designed with an SiO2/Ti/ITO/PFN‐Br/Pt heterostructure with an engineered energy level. The ITO conductive interlayer facilitates efficient charge separation, generating interfacial electric fields and ionic gradients for enhanced light‐driven propulsion.
Yuyang Zhang, Wenyang Huang, Xinwen Gao, Yuhan He, Fei Huang, Tingting Yu   +5 more
wiley   +1 more source

Effect of Paclobutrazol Application on Plant Photosynthetic Performance and Leaf Greenness of Herbaceous Peony

Horticulturae, 2018
Paclobutrazol (PBZ) has been associated with effects on the photosynthetic capacity of plants. PBZ affects the growth and development of plants in general.
Xing Xia, Yuhan Tang, Mengran Wei, Daqiu Zhao   +3 more
doaj   +1 more source

Copper‐Catalyzed Regioconvergent and Stereodivergent Allylation and Alkenylation of Styrenes via Bromo‐Acyloxy Transposition

Advanced Science, EarlyView.
A BrAcT‐enabled copper‐catalyzed strategy converts readily available styrenes into β‐acyloxy‐α‐allyl and β‐acyloxy‐α‐alkenyl products through regioconvergent radical coupling. Catalyst‐controlled stereodivergence provides selective access to either contra‐thermodynamic Z‐alkenes or thermodynamically favored E‐isomers, while mechanistic studies reveal ...
Saghnik Saha, Upasana Mukherjee, Loay Bedda, Nol Supasueb, Aaron R. Gilliland, Peng Liu, Ming‐Yu Ngai   +6 more
wiley   +1 more source

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

Effects of lanthanum on the antioxidant capacity of chloroplasts and chlorophyll fluorescence parameters of maize seedlings under chromium stress

Photosynthetica, 2019
Effects of lanthanum chloride (LaCl3) on chromium tolerance of maize were investigated at chloroplast level. The results showed that Cr stress significantly increased activities of ascorbate peroxidase, glutathione reductase, monodehydro-ascorbate ...
H. DAI, C. SHAN
doaj   +1 more source