Results 81 to 90 of about 770,384 (397)

Atomic-scale access to long spin coherence in single molecules with scanning force microscopy [PDF]

arXiv, 2022
Understanding and controlling decoherence in open quantum systems is of fundamental interest in science, while achieving long coherence times is critical for quantum information processing. Although great progress was made for individual, isolated systems, and electron spin resonance (ESR) of single spins with nanoscale resolution has been demonstrated,
arxiv  

Plasma‐activated media selectively induces apoptotic death via an orchestrated oxidative stress pathway in high‐grade serous ovarian cancer cells

Molecular Oncology, Volume 19, Issue 4, Page 1170-1187, April 2025.
High‐grade serous ovarian cancer (HGSOC) is the most common and aggressive type of ovarian cancer with urgent need for new treatment strategies. This study evaluates plasma‐activated media (PAM) as a novel treatment for HGSOC, showing its ability to selectively induce oxidative stress and apoptosis in HGSOC cell lines, patient ascites cells and primary
Lorena T. Davies, Raja Ganesen, John Toubia, Sung‐Ha Hong, Sushil Kumar KC, Martin K. Oehler, Carmela Ricciardelli, Endre J. Szili, Nirmal Robinson, Melissa R. Pitman   +9 more
wiley   +1 more source

Practical applications of atomic force microscopy in biomedicine

STEMedicine, 2020
The last thirty years of progress of atomic force microscopy (AFM) applied to living matter is reviewed with a focus on potential uses in drug discovery or screening of patient samples.
Nicola Galvanetto
doaj   +1 more source

Graphene on Rh(111): STM and AFM studies

, 2012
The electronic and crystallographic structure of the graphene/Rh(111) moir\'e lattice is studied via combination of density-functional theory calculations and scanning tunneling and atomic force microscopy (STM and AFM).
A. Thissen, Dedkov Yu. S., E. N. Voloshina, M. Fonin, S. Torbrügge, Yu. S. Dedkov   +5 more
core   +1 more source

Imaging of the Hydrogen Subsurface Site in Rutile TiO2 [PDF]

, 2009
From an interplay between simultaneously recorded noncontact atomic force microscopy and scanning tunneling microscopy images and simulations based on density functional theory, we reveal the location of single hydrogen species in the surface and ...
Besenbacher, Flemming, Enevoldsen, Georg H., Foster, Adam S., Hammer, Bjørk, Hofer, Werner A., Jensen, Mona C. R., Lauritsen, Jeppe V., Pinto, Henry P.   +7 more
core   +1 more source

Escape from TGF‐β‐induced senescence promotes aggressive hallmarks in epithelial hepatocellular carcinoma cells

Molecular Oncology, EarlyView.
Chronic TGF‐β exposure drives epithelial HCC cells from a senescent state to a TGF‐β resistant mesenchymal phenotype. This transition is characterized by the loss of Smad3‐mediated signaling, escape from senescence, enhanced invasiveness and metastatic potential, and upregulation of key resistance modulators such as MARK1 and GRM8, ultimately promoting
Minenur Kalyoncu, Dilara Demirci, Sude Eris, Bengisu Dayanc, Ece Cakiroglu, Merve Basol, Merve Uysal, Gulcin Cakan‐Akdogan, Fang Liu, Mehmet Ozturk, Gökhan Karakülah, Serif Senturk   +11 more
wiley   +1 more source

Understanding and measuring mechanical signals in the tumor stroma

FEBS Open Bio, EarlyView.
This review discusses cancer‐associated fibroblast subtypes and their functions, particularly in relation to extracellular matrix production, as well as the development of 3D models to study tumor stroma mechanics in vitro. Several quantitative techniques to measure tissue mechanical properties are also described, to emphasize the diagnostic and ...
Fàtima de la Jara Ortiz, Chiara Cimmino, Maurizio Ventre, Alessandra Cambi   +3 more
wiley   +1 more source

Investigating Atomic Details of the CaF$_2$(111) Surface with a qPlus Sensor [PDF]

, 2004
The (111) surface of CaF$_2$ has been intensively studied with large-amplitude frequency-modulation atomic force microscopy and atomic contrast formation is now well understood.
Allers W, Barth C, Foster A, Franz J Giessibl, Giessibl F J, Giessibl F J, Giessibl F J, Giessibl F J, Giessibl F J, Israelachvili J, Letz M, Michael Reichling, Reichling M, Schick M, Tasker P W   +14 more
core   +2 more sources

Force Microscopy with Light-Atom Probes [PDF]

Science, 2004
The charge distribution in atoms with closed electron shells is spherically symmetric, whereas atoms with partially filled shells can form covalent bonds with pointed lobes of increased charge density. Covalent bonding in the bulk can also affect surface atoms, leading to four tiny humps spaced by less than 100 picometers in the charge density of ...
Hembacher, Stefan, Giessibl, Franz J., Mannhart, Jochen   +2 more
openaire   +4 more sources

Evaluation of synaptotagmin‐1 action models by all‐atom molecular dynamics simulations

FEBS Open Bio, Volume 15, Issue 5, Page 699-713, May 2025.
We used molecular dynamics simulations to test models proposing that synaptotagmin‐1 facilitates membrane fusion by perturbing lipid bilayers, inducing membrane curvature and/or bridging membranes. The simulations show that synaptotagmin‐1 C2‐domains placed near the site of fusion hinder the ability of SNARE complexes to bring the membranes together ...
Josep Rizo, Klaudia Jaczynska, Christian Rosenmund   +2 more
wiley   +1 more source