Results 71 to 80 of about 1,460,967 (299)

Electron Transfer Initiated Reactions Photoinduced by Pterins

Pteridines, 2011
Interest in the photochemistry and photophysics of pterins has increased since the participation of this family of compounds in different photobiological processes has been suggested or demonstrated in recent decades.
Lorente Carolina, Petroselli Gabriela, Dántola M. Laura, Oliveros Esther, Thomas Andrés H.   +4 more
doaj   +1 more source

Conductive proteins‐based extracellular electron transfer of electroactive microorganisms

Quantitative Biology, 2023
Electroactive microorganisms (EAMs) could utilize extracellular electron transfer (EET) pathways to exchange electrons and energy with their external surroundings.
Junqi Zhang, Zixuan You, Dingyuan Liu, Rui Tang, Chao Zhao, Yingxiu Cao, Feng Li, Hao Song   +7 more
doaj   +1 more source

A density matrix approach to photoinduced electron injection

, 2001
Electron injection from an adsorbed molecule to the substrate (heterogeneous electron transfer) is studied. One reaction coordinate is used to model this process.
Asbury, Blum, Burfeindt, Cherepy, Egorova, Hannappel, Ivan Kondov, Kleinekathöfer, Kondov, Lanzafame, Michael Schreiber, Pollard, Ramakrishna, Ramakrishna, Redfield, Redfield, Ulrich Kleinekathöfer, Wolfseder, Wolfseder   +18 more
core   +1 more source

Engineered extracellular vesicles enriched with the miR‐214/199a cluster enhance the efficacy of chemotherapy in ovarian cancer

Molecular Oncology, EarlyView.
Loss of the miR‐214/199a cluster is associated with recurrence in ovarian cancer. Engineered small extracellular vesicles (m214‐sEVs) elevate miR‐214‐3p/miR‐199a‐5p in tumor cells, suppress β‐catenin, TLR4, and YKT6 signaling, reprogram tumor‐derived sEV cargo, reduce chemoresistance and migration, and enhance carboplatin efficacy and survival in ...
Weida Wang, Ayesha Alvero, Yi Qin, Mingjin Wang, Alexandra Fox, Yanfeng Li, Michael Millman, Amy Kemper, Gil Mor, Xian Shuang Liu, Michael Chopp, Zheng Gang Zhang, Yi Zhang   +12 more
wiley   +1 more source

Resolving orbital pathways for intermolecular electron transfer

Nature Communications, 2018
It is known that intermolecular interactions impact electron transfer rates, but the mechanisms involved are challenging to define experimentally. Here, the authors have developed a platform that enables atomic orbital resolution of electron transfer ...
Cameron W. Kellett, Wesley B. Swords, Michael D. Turlington, Gerald J. Meyer, Curtis P. Berlinguette   +4 more
doaj   +1 more source

Coherent Particle Transfer in an On-Demand Single-Electron Source [PDF]

, 2008
Coherent electron transfer from a localized state trapped in a quantum dot into a ballistic conductor, taking place in on-demand electron sources, in general may result in excitation of particle-hole pairs.
A. V. Shytov, J. Keeling, L. S. Levitov, Y. N. Demkov, Y. N. Demkov   +4 more
core   +3 more sources

Cell‐cycle‐specific lesion evolution rather than inhibition of double‐strand‐break repair underpins cisplatin radiosensitization

Molecular Oncology, EarlyView.
We analyze cisplatin–DNA adducts (CDAs) and double‐strand breaks (DSBs) in a cell‐cycle‐dependent manner. We find that CDAs form similarly across all cell cycle phases. DSBs arise only in S‐phase. CDAs might not directly impair DSB repair, but S‐phase DSB lesions evolve in the presence of CDAs and disrupt repair in G2, also causing radiosensitization ...
Ye Qiu, Xixi Lin, Emil Mladenov, Veronika Mladenova, Jürgen Thomale, Ali Sak, Yao Wang, Yunxuan Deng, Eleni Gkika, Martin Stuschke, George Iliakis   +10 more
wiley   +1 more source

Electron Transfer At Semiconductor / Liquid Interfaces

Ibn Al-Haitham Journal for Pure and Applied Sciences, 2017
Electron Transfer reaction rate constants at Semiconductor / Liquid interfaces are calculated dy using the Fermi Golden Rule for Semiconductor. The reorganization energy   eV is computed for Semiconductor / Liquid Interfaces system in two ...
H.J.M. Al-Agealy, R.I.N. AL-Obaidi
doaj  

Medium Effects in Photoinduced Electron Transfer Reactions

CHIMIA, 1988
The transfer of an electron between two molecules is a fundamental chemical process of great significance in biochemistry as well as in general chemistry.
Paul Suppan
doaj   +1 more source

Metformin promotes mitochondrial integrity through AMPK‐signaling in Leber's hereditary optic neuropathy

FEBS Open Bio, EarlyView.
Metformin mediates mitochondrial quality control in Leber's hereditary optic neuropathy (LHON) fibroblasts carrying mtDNA mutations. At therapeutic levels, metformin activates AMPK signaling to restore mitochondrial dynamics by promoting fusion and restraining fission, while preserving mitochondrial mass, enhancing autophagy/mitophagy and biogenesis ...
Chatnapa Panusatid, Rapasviranda Soiyangsuk, Maneeluck Tanadjindarat, Chayanon Peerapittayamongkol   +3 more
wiley   +1 more source