Results 91 to 100 of about 1,407,780 (327)

Influence of the charge carrier tunneling processes on the recombination dynamics in single lateral quantum dot molecules

, 2009
We report on the charge carrier dynamics in single lateral quantum dot molecules and the effect of an applied electric field on the molecular states.
Beirne, G. J., Bester, G., Heldmaier, M., Hermannstädter, C., Michler, P., Peng, J., Rastelli, A., Schmidt, O. G., Wang, L., Witzany, M.   +9 more
core   +1 more source

Incorporation of a high potential quinone reveals that electron transfer in Photosystem I becomes highly asymmetric at low temperature [PDF]

, 2012
Photosystem I (PS I) has two nearly identical branches of electron-transfer co-factors. Based on point mutation studies, there is general agreement that both branches are active at ambient temperature but that the majority of electron-transfer events ...
Est, Art van der, Golbeck, John H., Lubitz, Wolfgang, Mamedov, Mahir D., Mula, Sam, Möbius, Klaus, Savitzky, Anton, Semenov. Alexey Yu.   +7 more
core   +1 more source

Structural biology of ferritin nanocages

FEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source

Enzymatic Direct Electron Transfer at Ascorbate Oxidase-modified Gold Electrode Prepared by One-step Galvanostatic Method

International Journal of Electrochemical Science, 2012
A one-step enzyme immobilization by galvanostatic method at gold electrode was applied to achieve direct electron transfer (DET) of ascorbate oxidase from Acremonium sp. (ASOM).
Bhushan Patil, Shigenori Fujikawa, Takeyoshi Okajima, Takeo Ohsaka   +3 more
doaj   +1 more source

Characterization of Shewanella oneidensis MtrC: a cell-surface decaheme cytochrome involved in respiratory electron transport to extracellular electron acceptors [PDF]

, 2007
MtrC is a decaheme c-type cytochrome associated with the outer cell membrane of Fe(III)-respiring species of the Shewanella genus. It is proposed to play a role in anaerobic respiration by mediating electron transfer to extracellular mineral oxides that ...
AI Tsapin, AJ Bard, AS Beliaev, AS Beliaev, BH Kim, Brian N. Jepson, C Myers, C Myers, C Schwalb, CR Myers, CR Myers, CR Myers, CR Myers, D Leys, David J. Richardson, DJ Richardson, E Berry, EHJ Gordon, FA Walker, GR Moore, HJ Kim, I Gautier-Luneau, J Hirst, JF Heidelberg, Jim Fredrickson, JK Fredrickson, JM Myers, JM Myers, JM Philo, John Zachara, Julea N. Butt, K Venkateswaren, KE Pitts, KH Nealson, KH Nealson, Kurnikov, L Shi, L Shi, Liang Shi, LJ Anderson, MG Almeida, MP Hendrich, MP Hendrich, PL Dutton, PS Dobbin, R Aasa, Robert S. Hartshorne, Sarah J. Field, SJ Field, T Horan, TA Clarke, Tom A. Clarke, VA Bamford   +52 more
core   +1 more source

PYCR1 inhibition in bone marrow stromal cells enhances bortezomib sensitivity in multiple myeloma cells by altering their metabolism

Molecular Oncology, EarlyView.
This study investigated how PYCR1 inhibition in bone marrow stromal cells (BMSCs) indirectly affects multiple myeloma (MM) cell metabolism and viability. Culturing MM cells in conditioned medium from PYCR1‐silenced BMSCs impaired oxidative phosphorylation and increased sensitivity to bortezomib.
Inge Oudaert, Lauren van den Broecke, Osman Aksoy, Judith Lind, Sonia Vallet, Arne Van der Vreken, Gamze Ates, Ann Massie, Ken Maes, Kim De Veirman, Elke De Bruyne, Karin Vanderkerken, Klaus Podar, Eline Menu   +13 more
wiley   +1 more source

Direct observation of electron transfer in solids through X-ray crystallography

Nature Communications
Nanoscale electron transfer (ET) in solids is fundamental to the design of multifunctional nanomaterials, yet its process is not fully understood. Herein, through X-ray crystallography, we directly observe solid-state ET via a crystal-to-crystal process.
Daiji Ogata, Shota Koide, Hiroyuki Kishi, Junpei Yuasa   +3 more
doaj   +1 more source

Direct Simulation of Electron Transfer Reactions in DNA Radical Cations [PDF]

The Journal of Physical Chemistry B, 2008
The electron transfer properties of DNA radical cations are important in DNA damage and repair processes. Fast long-range charge transfer has been demonstrated experimentally, but the subtle influences that experimental conditions as well as DNA sequences and geometries have on the details of electron transfer parameters are still poorly understood. In
Steinbrecher, Thomas, Koslowski, Thorsten, Case, David A.   +2 more
openaire   +4 more sources

Inhibition of CDK9 enhances AML cell death induced by combined venetoclax and azacitidine

Molecular Oncology, EarlyView.
The CDK9 inhibitor AZD4573 downregulates c‐MYC and MCL‐1 to induce death of cytarabine (AraC)‐resistant AML cells. This enhances VEN + AZA‐induced cell death significantly more than any combination of two of the three drugs in AraC‐resistant AML cells.
Shuangshuang Wu, Jianlei Zhao, Aaban Asfar Azmi, Avanti Gupte, Jenna Thibodeau, Shuang Liu, Jinli Yang, Guan Wang, Holly Edwards, Lisa A. Polin, Juiwanna Kushner, Sijana H. Dzinic, Kathryn White, Julie Boerner, Maik Hüttemann, Jay Yang, Yue Wang, Jeffrey W. Taub, Yubin Ge   +18 more
wiley   +1 more source

Electrochemical Choline Sensing: Biological Context, Electron Transfer Pathways and Practical Design Strategies

Biomolecules
Choline is a central metabolite that connects membrane turnover, neurotransmission, and one-carbon metabolism, and its reliable measurement across diverse biological matrices remains a significant analytical challenge.
Angel A. J. Torriero, Sarah M. Thiak, Ashwin K. V. Mruthunjaya   +2 more
doaj   +1 more source