Results 41 to 50 of about 122,502 (355)

Optical Absorptivity versus Molecular Composition of Model Organic Aerosol Matter [PDF]

, 2009
Aerosol particles affect the Earth’s energy balance by absorbing and scattering radiation according to their chemical composition, size, and shape. It is generally believed that their optical properties could be deduced from the molecular composition of ...
Colussi, A. J., Guzmán, Marcelo I., Hoffmann, Michael R., Rincón, Angela G.   +3 more
core   +2 more sources

Degradation of Blue MR‐TADF OLEDs: Host‐dependent Effects of mCBP and MADN Revealed by Fragmentation Profiling

Advanced Optical Materials, EarlyView.
Degradation in blue MR‐TADF OLEDs originates from high triplet density caused by slow RISC. LDI‐TOF MS directly detects host‐ and emitter‐derived fragments, providing molecular insight into how triplet accumulation drives degradation in the emissive layer. ABSTRACT Blue organic light‐emitting diodes (OLEDs) employing multi‐resonance thermally activated
Min Gyu Jun, Jeong Won Seo, Jong‐Am Hong, Kyu‐Myung Lee, Yongsup Park, Min Chul Suh   +5 more
wiley   +1 more source

Fused Ring Engineering Induced Topology Control in Covalent Organic Frameworks: Unlocking Promoted Photocatalytic H2O2 Production and Selective Methane Oxidation

Angewandte Chemie, EarlyView.
By modulating the topological structures of two N‐heterocycle‐based covalent organic frameworks, Phen‐TTA with a kgd‐v topology exhibits narrower optical bandgap, lower exciton binding energy, and faster charge‐carrier kinetics compared to O‐TTA with an hcb topology.
Lei Wang, Zhipeng Xie, Xinyi Zeng, Hetao Xu, Mingyue Wang, Jie Yang, Chao Lin, Wandong Xing, Zhengxiao Guo, Xiong Chen   +9 more
wiley   +2 more sources

Limited Long‐Term Photolysis of Stratospheric Organic Aerosols With Implications for CESM Modeling

Journal of Advances in Modeling Earth Systems
Organic aerosol (OA) is an important constituent of the Earth's atmosphere, yet the extent of its destruction by photolysis remains an active research question.
Jian Guan, Susan Solomon, Daniel M. Murphy, Kane Stone, Pengfei Yu, Douglas Kinnison, Gregory P. Schill, Simone Tilmes, Michael J. Lawler   +8 more
doaj   +1 more source

Photocatalytic Properties of Graphene/Gold and Graphene Oxide/Gold Nanocomposites Synthesized by Pulsed Laser Induced Photolysis

Nanomaterials, 2020
Graphene (Gr)/gold (Au) and graphene-oxide (GO)/Au nanocomposites (NCPs) were synthesized by performing pulsed-laser-induced photolysis (PLIP) on hydrogen peroxide and chloroauric acid (HAuCl4) that coexisted with Gr or GO in an aqueous solution.
Li-Hsiou Chen, Huan-Ting Shen, Wen-Hsin Chang, Ibrahim Khalil, Su-Yu Liao, Wageeh A. Yehye, Shih-Chuan Liu, Chih-Chien Chu, Vincent K. S. Hsiao   +8 more
doaj   +1 more source

Occurrence and Treatment of Antibiotic-Resistant Bacteria Present in Surface Water

Membranes, 2023
According to the World Health Organization, antibiotic resistance is one of the main threats to global health. The excessive use of several antibiotics has led to the widespread distribution of antibiotic-resistant bacteria and antibiotic resistance ...
João Sério, Ana Paula Marques, Rosa Huertas, João Goulão Crespo, Vanessa Jorge Pereira   +4 more
doaj   +1 more source

Near-Infrared and Visible Photoactivation to Uncage Carbon Monoxide from an Aqueous-Soluble PhotoCORM. [PDF]

, 2019
Multiphoton excitation allows one to access high energy excited states and perform valuable tasks in biological systems using tissue penetrating near-infrared (NIR) light.
Barrett, Jacob, Ford, Peter C, Jiang, Qin, Mikhailovsky, Alexander, Shi, Pengfei, Wang, Daqi, Wu, Guang, Xia, Yingzi   +7 more
core   +1 more source

Spectrophotometric studies of the photolysis of diazido-bis(phosphine)-metal(II) complexes [PDF]

, 1993
The photolysis of mixed ligand complexes of the type MLn(N3)2 (M=Ni, Pd, Pt; L = phosphane and diphosphane ligands, respectively; n = 1, 2) was monitored by electronic spectroscopy in absorption, emission and excitation.
Hennig, H., Knoll, H., Ritter, K., Vogler, Arnd   +3 more
core   +1 more source

Coordination of Cyanobacterial Nitrate Assimilation and Photosynthesis by a Novel PsbO‐Interacting Protein PirN

Advanced Science, EarlyView.
PirN was identified as a previously uncharacterized PsbO‐interacting protein specifically induced in nitrate‐grown cyanobacteria. Loss of PirN leads to coordinated downregulation of PsbO and the nitrate reductase NarB, causing decreased PSII activity and impaired growth under nitrate conditions. Complementation with either PsbO or NarB largely restores
Chengcheng Huang, Zhen Xiao, Haitao Ge, Gaojie Wang, Jinghui Dong, Yan Wang, Hang Yang, Xing Wang, Hui Gao, Zhongshu Wang, Huanling Yang, Yuanya Zhang, Xiahe Huang, Wu Xu, Weimin Ma, Wenqiang Yang, Yingchun Wang   +16 more
wiley   +1 more source

Surface‐Bound Superoxide Radical‐Mediated Photo‐Fenton Mineralization of Ciprofloxacin on Fe‐Sillenite Nanosheets

Advanced Science, EarlyView.
This study systematically compares the degradation efficiency of CIP in a H2O2‐alone system and a novel Bi12FeO20‐H2O2 photo‐Fenton system. It reveals for the first time the presence of a quinone‐imine intermediate in the H2O2‐alone system, which exhibits toxicity comparable to CIP.
Wenting Qiu, Ji Liu, Hengjun Shang, Yaning Zhang, Shuai Dou, Jing Xu, Ying Zhang, Yang Lou, Yongfa Zhu, Chengsi Pan   +9 more
wiley   +1 more source