Results 141 to 150 of about 11,111,834 (347)

Sudden anaerobization in Amphibacillus xylanus increases intracellular labile ferrous iron and inhibits cell growth

FEBS Open Bio, EarlyView.
Abruptly changing from aerobic to anaerobic conditions (sudden anaerobization) induced growth inhibition and a significant increase in intracellular labile ferrous iron in the aerotolerant anaerobe Amphibacillus xylanus. We found that free flavins mediate efficient electron transfer from NADH to ferric iron under anaerobic conditions, suggesting that ...
Shinya Kimata, Yoichi Sakai, Keisuke Tanaka, Etsuro Yoshimura, Ken Kitano, Morio Ishikawa, Tadahiro Nakamoto, Tsutomu Takayama, Hirofumi Inoue, Kaho Nomura, Tomonori Suzuki, Masataka Uchino, Akira Abe, Youichi Niimura   +13 more
wiley   +1 more source

Ultrafast Two‐Color X‐Ray Emission Spectroscopy Reveals Excited State Landscape in a Base Metal Dyad

Advanced Science
Effective photoinduced charge transfer makes molecular bimetallic assemblies attractive for applications as active light‐induced proton reduction systems. Developing competitive base metal dyads is mandatory for a more sustainable future.
Michal Nowakowski, Marina Huber‐Gedert, Hossam Elgabarty, Aleksandr Kalinko, Jacek Kubicki, Ahmet Kertmen, Natalia Lindner, Dmitry Khakhulin, Frederico A. Lima, Tae‐Kyu Choi, Mykola Biednov, Lennart Schmitz, Natalia Piergies, Peter Zalden, Katharina Kubicek, Angel Rodriguez‐Fernandez, Mohammad Alaraby Salem, Sophie E. Canton, Christian Bressler, Thomas D. Kühne, Wojciech Gawelda, Matthias Bauer   +21 more
doaj   +1 more source

Engineering bright J-aggregates through manipulation of electron acceptor for in vivo NIR-II fluorescence imaging

Journal of Innovative Optical Health Sciences
Fluorophores emitting in the second near-infrared window (NIR-II, 900–1700[Formula: see text]nm) allow for high-resolution deep-tissue bioimaging owing to minimal tissue scattering.
Yonghui Pan, Xianwei Weng, Mingxuan Jia, Xiaofei Miao, Hui Zhao, Jie Zhang, Wenbo Hu, Quli Fan   +7 more
doaj   +1 more source

RoundMi: A quantitative method to analyze mitochondrial morphology in mitotic cells

FEBS Open Bio, EarlyView.
RoundMi is a workflow for rapid analysis of mitochondrial morphology in mitotic cells. By combining adaptive preprocessing with automated segmentation and quantification, it enables accurate measurements from single focal plane images, reducing acquisition time and computational demands while remaining compatible with high‐throughput fixed and live ...
Elmira Parvindokht Bararpour, Christine Volmert, Valentina Piano   +2 more
wiley   +1 more source

Tuning the Inter-Chromophore Electronic Coupling in Perylene Diimide Dimers with Rigid Covalent Linkers

Molecules
The organic multi-chromophore system has been increasingly attractive due to the potential optoelectronic applications. The inter-chromophore electronic coupling (EC), i.e., JCoul and JCT, plays a critical role in determining the relaxation path of the ...
Guo Yu, Yixuan Gao, Yonghang Li, Yiran Tian, Xiaoyu Zhang, Yandong Han, Jinsheng Song, Wensheng Yang, Xiaonan Ma   +8 more
doaj   +1 more source

Role of intramolecular hydrogen bonding in the excited-state intramolecular double proton transfer (ESIDPT) of calix[4]arene: A TDDFT study

Open Physics, 2016
The time-dependent density functional theory (TDDFT) method was performed to investigate the excited-state intramolecular double proton transfer (ESIDPT) reaction of calix[4]arene (C4A) and the role of the intramolecular hydrogen bonds in the ESIDPT ...
Wang Se, Wang Zhuang, Hao Ce
doaj   +1 more source

Ultrafast Excited State Relaxation of a Metalloporphyrin Revealed by Femtosecond X-ray Absorption Spectroscopy

Journal of the American Chemical Society, 2016
Photoexcited Nickel(II) tetramesitylporphyrin (NiTMP), like many open-shell metalloporphyrins, relaxes rapidly through multiple electronic states following an initial porphyrin-based excitation, some involving metal centered electronic configuration ...
M. Shelby, Patrick J. Lestrange, Nicholas E. Jackson, Kristoffer Haldrup, Michael W. Mara, A. Stickrath, D. Zhu, H. Lemke, M. Chollet, B. Hoffman, Xiaosong Li, Lin X. Chen   +11 more
semanticscholar   +1 more source

One size does not fit all: An in vitro evaluation of the effects of bezafibrate and medroxyprogesterone acetate on human SH‐SY5Y and U‐87 MG cancer cells

FEBS Open Bio, EarlyView.
Drugs previously repurposed to target blood cancers reduced neuroblastoma and glioblastoma cell growth and viability. However, their levels of anticancer activity were different and their clinical application may be problematic due to side effects at effective doses.
Abhishek Kharawatkar, Francesco Michelangeli, Farhat Latif Khanim, Christopher Martin Bunce, William Eustace Basil Johnson   +4 more
wiley   +1 more source

UiO‐66 metal–organic frameworks in biomedicine: From structural tunability to bioimaging, photodiagnostics, and photodynamic cancer therapy

FEBS Open Bio, EarlyView.
UiO‐66(Zr) metal–organic frameworks are chemically stable, biocompatible, and highly tunable nanomaterials. Their modular structure enables controlled drug delivery, multimodal bioimaging, and light‐activated photodynamic therapy, supporting integrated diagnostic and therapeutic (theranostic) applications in cancer and biomedical research.
Veronika Huntošová, Grigorii Rakhalskii, Miroslav Almáši   +2 more
wiley   +1 more source

Density Functional Calculation and Evaluation of the Spectroscopic Properties and Luminescent Material Application Potential of the N-Heterocyclic Platinum(II) Tetracarbene Complexes

Molecules
A series of reported Pt(II) carbene complexes possibly have the ability to serve as the new generation of blue emitters in luminescent devices because of their narrow emission spectra, high photoluminescence quantum yields (PLQYs), and rigid molecular ...
Bao-Hui Xia, Yin-Si Ma, Fu-Quan Bai
doaj   +1 more source