Results 71 to 80 of about 1,029,294 (345)

Single-Bilayer Graphene Test Structures for Kelvin Probe Microscopy

C, 2023
A new technique for determining the point spread function, which is required for measuring the surface potential using Kelvin probe microscopy (KPM), is presented. The method involves using a silicon carbide substrate coated with single-layer and bilayer
Sergey P. Lebedev, Ilya A. Eliseyev, Mikhail S. Dunaevskiy, Ekaterina V. Gushchina, Alexander A. Lebedev   +4 more
doaj   +1 more source

Antibiotic Adverse Reactions and Drug Interactions [PDF]

, 2008
Magnetic force microscopy (MFM) offers a unique insight into the nanoscopic scale domain structures of magnetic materials. However, MFM is generally regarded as a qualitative technique and, therefore, requires meticulous calibration of the magnetic ...
Asenjo, Agustina, Iglesias-Freire, Oscar, Kazakova, Olga, Lartsev, Arseniy, Panchal, Vishal, Yakimova, Rositsa   +5 more
core   +2 more sources

Feature extraction via similarity search: application to atom finding and denoising in electron and scanning probe microscopy imaging

Advanced Structural and Chemical Imaging, 2018
We develop an algorithm for feature extraction based on structural similarity and demonstrate its application for atom and pattern finding in high-resolution electron and scanning probe microscopy images.
S. Somnath, C. R. Smith, Sergei V. Kalinin, M. Chi, A. Borisevich, Nicholas Cross, G. Duscher, S. Jesse   +7 more
semanticscholar   +1 more source

In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS

FEBS Letters, EarlyView.
We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka, Yuxi Liu, Stefano Maggi, Debnath Ghosal, Jue Wang, Prashant P. Damke, Stephen D. Carter, Wei Zhao, Sukhithasri Vijayrajratnam, Joseph P. Vogel, Carrie L. Shaffer, Grant J. Jensen   +11 more
wiley   +1 more source

Nanomotion of bacteria to determine metabolic profile

Nanotechnology and Precision Engineering
In addition to their visible motion such as swimming (e.g., with the help of flagella), bacteria can also exhibit nanomotion that is detectable only with highly sensitive instruments, and this study shows that it is possible to detect bacterial ...
S. N. Pleskova, E. V. Lazarenko, N. A. Bezrukov, R. N. Kriukov, A. V. Boryakov, M. E. Dokukin, S. I. Surodin   +6 more
doaj   +1 more source

Cell density–dependent nuclear‐cytoplasmic shuttling of SETDB1 integrates with Hippo signaling to regulate YAP1‐mediated transcription

FEBS Letters, EarlyView.
At low cell density, SETDB1 and YAP1 accumulate in the nucleus. As cell density increases, the Hippo pathway is gradually activated, and SETDB1 is associated with increased YAP1 phosphorylation. At high cell density, phosphorylated YAP1 is sequestered in the cytoplasm, while SETDB1 becomes polyubiquitinated and degraded by the ubiquitin–proteasome ...
Jaemin Eom, Jaewoong Jang, Jung Sun Park, Yong‐Kook Kang   +3 more
wiley   +1 more source

Standardization of surface potential measurements of graphene domains [PDF]

, 2013
We compare the three most commonly used scanning probe techniques to obtain a reliable value of the work function in graphene domains of different thickness.
Kazakova, Olga, Panchal, Vishal, Pearce, Ruth, Tzalenchuk, Alexander, Yakimova, Rositza   +4 more
core   +2 more sources

β‐TrCP overexpression enhances cisplatin sensitivity by depleting BRCA1

Molecular Oncology, EarlyView.
Low levels of β‐TrCP (Panel A) allow the accumulation of BRCA1 and CtIP, which facilitate the repair of cisplatin‐induced DNA damage via homologous recombination (HR) and promote tumor cell survival. In contrast, high β‐TrCP expression (Panel B) leads to BRCA1 and CtIP degradation, impairing HR repair, resulting in persistent DNA damage and apoptosis ...
Rocío Jiménez‐Guerrero, Alejandro Belmonte‐Fernández, Mónica González‐Moreno, Laura Rodríguez‐Cordero, Begoña Pérez‐Valderrama, Joaquín Herrero‐Ruíz, Francisco Romero, Carmen Sáez, Miguel Á. Japón   +8 more
wiley   +1 more source

Plant cell wall characterization using scanning probe microscopy techniques

Biotechnology for Biofuels, 2009
Lignocellulosic biomass is today considered a promising renewable resource for bioenergy production. A combined chemical and biological process is currently under consideration for the conversion of polysaccharides from plant cell wall materials, mainly ...
Himmel Michael E, Yarbrough John M, Ding Shi-You   +2 more
doaj   +1 more source

Combined scanning force microscopy and scanning tunneling spectroscopy of an electronic nano-circuit at very low temperature

, 2007
We demonstrate the combination of scanning force microscopy and scanning tunneling spectroscopy in a local probe microscope operating at very low temperature (60 mK). This local probe uses a quartz tuning fork ensuring high tunnel junction stability.
Courtois, Hervé, Luo, Pengshun S., Senzier, Julien   +2 more
core   +3 more sources