Results 111 to 120 of about 10,023,443 (259)

Near-field imaging of optical resonances in silicon metasurfaces using photoelectron microscopy

APL Photonics
Precise control of light–matter interactions at the nanoscale lies at the heart of nanophotonics. However, experimental examination at this length scale is challenging since the corresponding electromagnetic near-field is often confined within volumes ...
Alex Boehm, Sylvain D. Gennaro, Chloe F. Doiron, Thomas E. Beechem, Michael B. Sinclair, Igal Brener, Raktim Sarma, Taisuke Ohta   +7 more
doaj   +1 more source

KDAC6 alters cell morphology and motility through positive and negative modulation of F‐actin distribution

FEBS Open Bio, EarlyView.
KDAC6 has been associated with cell motility and actin structures, but specific domain contributions are not established. The two catalytic domains have differential effects on motility and F‐actin regulation, affecting cortical F‐actin density, motility, stress fibers, and cell spreading.
Taylor V. Joseph, Andrea B. Pham, Kiara E. Bornes, Razan H. Hammad, Chelsea A. Rousseve‐Ross, Thomas M. Huckaba, Terry J. Watt, Tasha B. Toro   +7 more
wiley   +1 more source

Electromagnetic Modeling in Near-Field Scanning Microwave Microscopy Highlighting Limitations in Spatial and Electrical Resolutions

, 2018
International audienceNear-field scanning microwave microscopy (NSMM) is a scanning probe microscopy (SPM) technique that measures the local interaction of evanescent microwaves with a sample using a sharp tip probe.
Brillard, C., P. Polovodov, Theron, Didier, Polovodov, P., F. Wang, Haenssler, O,, Dambrine, G., Wang, F., Dambrine, Gilles, Eliet, Sophie, G. Dambrine, Eliet, S., Polovodov, Petr, D. Deresmes, Clement, Nicolas, Brillard, Charlene, Boyaval, Christophe, Boyaval, C., C. Brillard, Haddadi, K., Theron, D., C. Boyaval, Clément, N., Wang, Fei, Deresmes, D., S. Eliet, O. C. Haenssler, Haddadi, Kamel, N. Clement, K. Haddadi, D. Theron, Haenssler, Olaf, C   +31 more
core   +1 more source

Purification and preparation of Marchantia polymorpha Auxin Response Factor 2 for phase separation studies

FEBS Open Bio, EarlyView.
We describe detailed protocols for the purification and preparation of Marchantia polymorpha Auxin Response Factor 2 (MpARF2). This protein is fused to an MBP solubility tag and an mNG fluorescent tag and is purified from Escherichia coli. The presented procedures make it possible to study MpARF2 assemblies, which could arise from phase separation ...
Bas Janssen, Robin Romein, Willy A. M. van den Berg, Simon Lindhoud, Jan Willem Borst, Carlo P. M. van Mierlo   +5 more
wiley   +1 more source

Novel Method to Improve the Signal to Noise Ratio in the Far-field Results Obtained from Planar Near Field Measurements. [PDF]

, 2010
A method to reduce the noise power in far-field pattern without modifying the desired signal is proposed. Therefore, an important signal-to-noise ratio improvement may be achieved.
Cano Facila, Francisco Jose, Sierra Castañer, Manuel, Burgos, S., Besada Sanmartín, José Luis   +3 more
core  

GelMA‐based 3D spheroids recapitulate transcriptomic and functional hallmarks of myeloid sarcoma

FEBS Open Bio, EarlyView.
GelMA 5% hydrogels support the formation of myeloid leukemia spheroids that recapitulate MS‐specific features, including G1 arrest, apoptosis, and ECM‐driven transcriptomic reprogramming. The 3D model mimicked soft‐tissue‐like stiffness and oxygen conditions, and transcriptomic convergence with primary MS samples confirmed its utility as a preclinical ...
Nicolas Germain, Elise Buret, Le Hoang Thanh Nguyen, Marion Cocheteux, Nicolas Touya, Mélanie Dhayer, Romain Dubois, Frank Lafont, Sebastien Janel, Patrice Maboudou, Steve Lancel, Philippe Marchetti   +11 more
wiley   +1 more source

A machine vision-based in situ probe for automated on-line measurement of cell density and viability by dark field microscopy, image processing and pattern recognition [PDF]

, 2007
Wei N. A machine vision-based in situ probe for automated on-line measurement of cell density and viability by dark field microscopy, image processing and pattern recognition.
Wei, Ning
core  

Extinction near-field optical microscopy

, 2003
This work presents a novel approach for apertureless, near-field scanning optical microscopy based on extinction of the incident beam for samples illuminated in evanescent fields and scanned with non-contact atomic force methods. The scheme exploits shot-
Labardi M, Gallagher A, Barzen S, Brown T, Nesbitt DJ, Hamann HF   +5 more
core   +1 more source

Comparative assessment of crystallographic and cryo‐EM models in the Protein Data Bank

FEBS Open Bio, EarlyView.
Raw data obtained by X‐ray crystallography or cryo‐EM result in experimental maps, ultimately fitted by atomic models. Although the physical principles are different, the final results can be viewed, compared, and evaluated in the same way. With cryogenic electron microscopy (cryo‐EM) on track to surpass X‐ray crystallography as the preferred method ...
Alexander Wlodawer, Pawel Rubach, Zbigniew Dauter, Wojciech Dec, Dariusz Brzezinski, Marta Kulik, Wladek Minor, Mariusz Jaskolski   +7 more
wiley   +1 more source

Thermal analysis of the cavity facet for an 808 nm semiconductor laser by using near-field scanning optical microscopy

, 2010
In order to analyze the thermal characteristics of the cavity facet of a semiconductor laser, a home-built near-field scanning optical microscopy (NSOM) is employed to probe the topography of the facet.
Song Guofeng, Chen Lianghui, Rao Lan
core