Results 91 to 100 of about 1,648,000 (303)

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

Nonequilibrium spin transport on Au(111) surfaces [PDF]

, 2008
The well-known experimentally observed \textit{sp}-derived Au(111) Shockley surface states with Rashba spin splitting are perfectly fit by an effective tight-binding model, considering a two-dimensional hexagonal lattice with $p_{z}$-orbital and nearest ...
C. Kittel, Ching-Ray Chang, G. Grosso, J. H. Davies, J. J. Sakurai, L. V. Keldysh, Ming-Hao Liu, S. Datta, S. G. Davison, Son-Hsien Chen, Y. A. Bychkov   +10 more
core   +2 more sources

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

C58 on Au(111): a scanning tunneling microscopy study [PDF]

, 2013
C58 fullerenes were adsorbed onto room temperature Au(111) surface by low-energy (~6 eV) cluster ion beam deposition under ultrahigh vacuum conditions.
Alexej Bagrets, Artur Böttcher, Bastian Kern, Beu T. A., Evers F., Ferdinand Evers, Jan Wilhelm, Manfred M. Kappes, Melanie Stendel, Michael Walz, Noelia Bajales, Seyithan Ulas, Stefan Schmaus, Toshio Miyamashi, Wulf Wulfhekel   +14 more
core   +3 more sources

Natural Products as Geroprotective Modulators in Diabetic Nephropathy: A Mechanistic Framework Integrating Aging Hallmarks and the AMPK–SIRT1–Nrf2 Axis

Aging and Cancer, EarlyView.
Natural products target the aging kidney in diabetic nephropathy by restoring the AMPK–SIRT1–Nrf2 axis, reducing oxidative stress, inflammation, fibrosis, and cellular senescence while enhancing mitochondrial biogenesis and antioxidant defenses.
Sherif Hamidu, Latif Adams, Eunice Ampem‐Danso, Justice Kumi, Abigail Aning, Fatima Hamidu, Mustapha Abdul Mumin Mohammed, Ayuba Nii Darku Ankrah, Seth Kwabena Amponsah   +8 more
wiley   +1 more source

Silicene, multilayer silicene and single layer blue phosphorus on different templates

Nanomaterials and Nanotechnology
The electronic and structural properties of silicene, multilayer silicene, and 2D silicon films, synthesised on Ag(111), Au(111) and on the α- and β-phase Si(111)√3 × √3R30°-Bi, have been reviewed according to the results of investigations made by low ...
Paola De Padova, Bruno Olivieri, Carlo Ottaviani, Amanda Generosi, Paola Prete, Mariusz Krawiec   +5 more
doaj   +1 more source

Spin-conserving and reversing photoemission from the surface states of Bi$_2$Se$_3$ and Au (111)

, 2016
We present a theory based on first-principles calculations explaining (i) why the tunability of spin polarizations of photoelectrons from Bi$_2$Se$_3$ (111) depends on the band index and Bloch wavevector of the surface state and (ii) why such tunability ...
Park, Cheol-Hwan, Ryoo, Ji Hoon
core   +1 more source

Anisotropic Assembly of Colloidal Nanoparticles: Exploiting Substrate Crystallinity [PDF]

, 2007
We show that the crystal structure of a substrate can be exploited to drive the anisotropic assembly of colloidal nanoparticles. Pentanethiol-passivated Au particles of approximately 2 nm diameter deposited from toluene onto hydrogen-passivated Si(111 ...
Brust M., EMMANUELLE PAULIAC-VAUJOUR, JAMES A. HAYTON, Martin C. P., Martin C. P., PHILIP J. MORIARTY   +5 more
core   +2 more sources

Mutant NPM1 in Acute Myeloid Leukemia Initiation and Maintenance

Aging and Cancer, EarlyView.
NPM1 mutations drive acute myeloid leukemia by acting as neomorphic transcriptional regulators that cooperate with Menin–MLL and XPO1 to sustain HOX/MEIS1 expression and block differentiation. Targeting these mutant‐specific transcriptional dependencies provides a rational therapeutic strategy for NPM1‐mutated AML.
Yanan Jiang, Zhong Fan, Runmeng Liu, Xiaotian Zhang   +3 more
wiley   +1 more source

The role of van der Waals forces in water adsorption on metals

, 2013
The interaction of water molecules with metal surfaces is typically weak and as a result van der Waals (vdW) forces can be expected to be of importance.
Carrasco, Javier, Klimeš, Jiří, Michaelides, Angelos   +2 more
core   +1 more source