Results 91 to 100 of about 75,034 (299)

Endogenous Singlet Oxygen Photosensitizers in Plants.

, 2016
Singlet oxygen, a highly reactive oxygen species, is inherently produced in chloroplasts of plants. Chlorophylls are used by plants to harvest light and to transport the singlet electronic excitation from the antenna complexes to the reaction centre (RC)
Arellano, Juan B., Naqvi, K. Razi
core  

Large‐Scale Determination of Frontier Orbital Energies of Disordered Small‐Molecule Organic Semiconductors Using Exciplex Emission Spectra

Advanced Materials, EarlyView.
ABSTRACT Accurately knowing the frontier orbital energies of the structurally disordered small‐molecule organic semiconductors that are used in optoelectronic devices such as organic light‐emitting diodes is required to rationally improve their performance. Here, we show that these energies can be deduced with a large accuracy from the peak energies of
Christian B. McDonald, Hiroki Tomita, Giacomo Cotelli, Louka L. Brüll, Nanno G. de Rooij, Lucas R.L. Norg, Milo Clément, Reinder Coehoorn   +7 more
wiley   +1 more source

Singlet oxygen-mediated selective C–H bond hydroperoxidation of ethereal hydrocarbons

Nature Communications, 2017
Singlet oxygen is known to react with carbon–carbon double bonds. Here, the authors show the unusual functionalization of α-ethereal C–H bonds mediated by singlet oxygen under mild conditions to afford lactones and hydroperoxide products.
Arunachalam Sagadevan, Kuo Chu Hwang, Ming-Der Su   +2 more
doaj   +1 more source

Reevaluation of analytical condition using highly singlet oxygen sensitive/selective reagent in aqueous-/non-aqueous solution

Studies in Science and Technology, 2018
The spin-trapping ESR (ST-ESR) method, which observes unstable radicals as stable spin adducts using electron spin resonance (ESR), is an effective experimental method for evaluating chemical reactions involving radical reactions.
Yu Saito, Yuto Koseki, Bunpei Hatano, Kazuaki Sato, Susumu Okubo, Hitoshi Ohta, Tateaki Ogata   +6 more
doaj   +1 more source

Phase Engineering of Nanomaterials (PEN): Evolution, Current Challenges, and Future Opportunities

Advanced Materials, EarlyView.
This review summarizes the synthesis, phase transition, advanced characterization spanning ex situ to in situ and operando techniques, and diverse applications of phase engineering of nanomaterials (PEN). It further outlines key challenges and future opportunities, such as phase stability, architecture control, and artificial intelligence (AI)‐driven ...
Ye Chen, Zhanxi Fan, Jingjie Ge, Qiyuan He, Zhuangchai Lai, Jiawei Liu, Chaoliang Tan, Hua Zhang   +7 more
wiley   +1 more source

Oxidative post-translational modification of EXECUTER1 is required for singlet oxygen sensing in plastids

Nature Communications, 2019
Singlet oxygen generated by photosynthesis under photo-oxidative stress conditions triggers retrograde signaling from plastids to nuclei. Here, the authors show that singlet oxygen perception and subsequent signaling events require oxidative post ...
Vivek Dogra, Mingyue Li, Somesh Singh, Mengping Li, Chanhong Kim   +4 more
doaj   +1 more source

Singlet‐Oxygen Generation by Peroxidases and Peroxygenases for Chemoenzymatic Synthesis [PDF]

, 2020
Singlet oxygen is a reactive oxygen species undesired in living cells but a rare and valuable reagent in chemical synthesis. We present a fluorescence spectroscopic analysis of the singlet-oxygen formation activity of commercial peroxidases and novel ...
Ute Liebelt, Ulf Menyes, Hoffmann-Jacobsen, Kerstin, Kerstin Hoffmann‐Jacobsen, Quint, Stephan, Klaus Opwis, Opwis, Klaus, Wunschik, Dennis S., Ralf Zuhse, Stephan Quint, Jochen S. Gutmann, Liebelt, Ute, Dyllick-Brenzinger, Melanie, Dennis S. Wunschik, Gutmann, Jochen S., Katrin Scheibner, Menyes, Ulf, Kim N. Ingenbosch, Kiebist, Jan, Philipp Süss, Süss, Philipp, Ingenbosch, Kim N., Mayer, Christian, Scheibner, Katrin, Jan Kiebist, Christian Mayer, Zuhse, Ralf, Melanie Dyllick‐Brenzinger   +27 more
core   +1 more source

Advancing Lithium–Oxygen Batteries: Pioneering Cathode Catalyst Innovation and Artificial Intelligence‐Driven Design Paradigms

Advanced Materials, EarlyView.
This review summarizes the principles and challenges of nonaqueous lithium‐oxygen batteries and recent advances in cathode catalysts, including carbon‐based materials, metals, oxides, sulfides, nitrides, carbides, and redox mediators. It highlights emerging design strategies and artificial intelligence‐driven approaches, emphasizing data‐assisted ...
Yuqing Yao, Chongyang Hao, Karol Viviana Mejia‐Centeno, Malik Dilshad Khan, Shang Wang, Longqiu Li, Yanhong Tian, Andreu Cabot, Qing Sun   +8 more
wiley   +1 more source

Production of singlet oxygen by the reaction of non-basic hydrogen peroxide with chlorine gas

, 2012
Non-basic hydrogen peroxide was found to be very easy to react with Cl-2 to produce singlet oxygen O-2(a(1) Delta(g)) (i.e. the molecular oxygen in its first electronic excited state) when an H+ absorbent such as C5H5N, CH3COONH4, HCOONH4 or NH4F was ...
邓列征, Cui, Rongrong, Yang, Heping, Shi, Wenbo, Deng, Liezheng, Tian, Wenming   +5 more
core   +1 more source

Double‐Sided Mechanical Interlocking Enables Soft‐Rigid Conductive Interfaces With a Record High Toughness for Flexible Electronics

Advanced Materials, EarlyView.
A double‐sided mechanical interlocking strategy is developed to create robust electrical contact between polymer electrode and metal interconnect. The fibrous structure enables formation of thread–hole adhesion, which only breaks under bulk failure and achieves a record high interfacial energy exceeding 730 J·m−2. This adhesion secures the integrity of
Gang Li, Minkun Cai, Chunyan Cao, Zengbai Ouyang, Hong Fu, Lingyu Zhao, Bingang Xu   +6 more
wiley   +1 more source