Results 31 to 40 of about 2,403,906 (294)

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

FEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

The Monitoring of Structural Quality of Silicon-Sapphire Interface by the Surface Photovoltage Method

Известия высших учебных заведений России: Радиоэлектроника, 2017
Heteroepitaxial silicon-on-sapphire (SOS) wafers with a layer thickness of 200 and 600 nm were fabricated by the vapor phase  epitaxy with monosilane as a precursor.
S. D. Fedotov, S. P. Timoshenkov, E. M. Sokolov, V. N. Statsenko   +3 more
doaj  

Effect of contaminations and surface preparation on the work function of single layer MoS2

Beilstein Journal of Nanotechnology, 2014
Thinning out MoS2 crystals to atomically thin layers results in the transition from an indirect to a direct bandgap material. This makes single layer MoS2 an exciting new material for electronic devices.
Oliver Ochedowski, Kolyo Marinov, Nils Scheuschner, Artur Poloczek, Benedict Kleine Bussmann, Janina Maultzsch, Marika Schleberger   +6 more
doaj   +1 more source

Modulation of phospholipase A2 by electrostatic fields and dipole potential of glycosphingolipids in monolayers

Journal of Lipid Research, 1999
Phospholipase A2 activity against mixed monolayers of dilauroylphosphatidic acid or dilauroylphosphatidylcholine with glycosphingolipids can be reversibly modulated by external constant electrostatic fields.
Bruno Maggio
doaj   +1 more source

Mapping the evolution of mitochondrial complex I through structural variation

FEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin, Tingting Chen, James A. Letts   +2 more
wiley   +1 more source

Study on the Force Model of Squeezed Branch Piles Based on Surface Potential Characteristics

Buildings, 2023
Squeezed branch piles, which boast the advantages of great bearing capacity, small settlement, and good stability, are an important infrastructure in the foundation of buildings, and their safety state is related to the safety of the entire structure. As
Siqing Zhang, Xiaofei Liu, Huajie Zhang, Chunde Piao, Yue Niu   +4 more
doaj   +1 more source

Mapping the Electronic Surface Potential of Nanostructured Surfaces [PDF]

Physical Review Letters, 2009
We present a method for the quantitative determination of the surface potential landscape of nanostructured surfaces based on the local analysis of the lowest field emission resonances by scanning tunneling spectroscopy. The method has a lateral resolution of approximately 1 nm and is applied to elucidate the site-specific adsorption properties of the ...
P, Ruffieux, K, Aït-Mansour, A, Bendounan, R, Fasel, L, Patthey, P, Gröning, O, Gröning   +6 more
openaire   +2 more sources

Enteropathogenic E. coli shows delayed attachment and host response in human jejunum organoid‐derived monolayers compared to HeLa cells

FEBS Letters, EarlyView.
Enteropathogenic E. coli (EPEC) infects the human intestinal epithelium, resulting in severe illness and diarrhoea. In this study, we compared the infection of cancer‐derived cell lines with human organoid‐derived models of the small intestine. We observed a delayed in attachment, inflammation and cell death on primary cells, indicating that host ...
Mastura Neyazi, Pilar Samperio Ventayol, Natalie Burkard, Nicolas Schlegel, Carmen Aguilar, Sina Bartfeld   +5 more
wiley   +1 more source

Surface resistivity estimation by scanning surface potential microscopy [PDF]

Review of Scientific Instruments, 2008
Nickel was sputter deposited on a glass with a thin film thickness of 600nm under either in an argon atmosphere or under a partial pressure of nitrogen of either 1.3×10−4 or 4×10−4mbar. Atomic force microscopy and scanning surface potential microscopy (SSPM) were used to study the morphology and to estimate the surface resistivity of the obtained Ni ...
Rakočević, Zlatko Lj., Popović, N., Bogdanov, Žarko D., Goncic, B., Štrbac, Svetlana   +4 more
openaire   +4 more sources

Organoids in pediatric cancer research

FEBS Letters, EarlyView.
Organoid technology has revolutionized cancer research, yet its application in pediatric oncology remains limited. Recent advances have enabled the development of pediatric tumor organoids, offering new insights into disease biology, treatment response, and interactions with the tumor microenvironment.
Carla Ríos Arceo, Jarno Drost
wiley   +1 more source