Results 31 to 40 of about 397,310 (297)

Scanning force microscopy of chromatin. [PDF]

Scanning microscopy, 1995
Scanning force microscopy (SFM) is a new method to obtain the topography of surfaces with nanometer-resolution. The ability to image under liquids makes the technique attractive for biological applications, especially for the determination of the ultrastructure of biomolecules under native conditions.
Fritzsche, Wolfgang, Vesenka, James, Henderson, Eric   +2 more
openaire   +1 more source

Impact of Electrostatic Forces in Contact Mode Scanning Force Microscopy

, 2010
In this $\ll$ contribution we address the question to what extent surface charges affect contact-mode scanning force microscopy measurements. % We therefore designed samples where we could generate localized electric field distributions near the surface ...
D. Sarid, E. Meyer, E. Soergel, F. Johann, T. Jungk, Á. Hoffmann   +5 more
core   +1 more source

Bidirectional quantitative force gradient microscopy

New Journal of Physics, 2015
Dynamic operation modes of scanning force microscopy based on probe resonance frequency detection are very successful methods to study force-related properties of surfaces with high spatial resolution.
Christopher F Reiche, Silvia Vock, Volker Neu, Ludwig Schultz, Bernd Büchner, Thomas Mühl   +5 more
doaj   +1 more source

The newfound relationship between extrachromosomal DNAs and excised signal circles

FEBS Letters, EarlyView.
Extrachromosomal DNAs (ecDNAs) contribute to the progression of many human cancers. In addition, circular DNA by‐products of V(D)J recombination, excised signal circles (ESCs), have roles in cancer progression but have largely been overlooked. In this Review, we explore the roles of ecDNAs and ESCs in cancer development, and highlight why these ...
Dylan Casey, Zeqian Gao, Joan Boyes
wiley   +1 more source

Drug-Release Mechanisms Elucidated by Imaging Techniques: Visualizing the Invisible!

Pharmaceutics, 2022
Imaging techniques such as Raman spectroscopy, electron microscopy, laser scanning confocal microscopy, atomic force microscopy, tomography, magnetic resonance imaging, and terahertz are powerful tools to elucidate drug-release mechanisms from different ...
Susanne Florin-Muschert
doaj   +1 more source

Development and AFM study of porous scaffolds for wound healing applications [PDF]

, 2004
An engineering approach to the development of biomaterials for promotion of wound healing emphasises the importance of a well-controlled architecture and concentrates on optimisation of morphology and surface chemistry to stimulate guidance of the ...
Bowen, W.R., Doneva, T.A., Stephens, P., Thomas, D.W., Yin, H.B.   +4 more
core   +2 more sources

Transferrin receptor 1‐mediated iron uptake supports thermogenic activation in human cervical‐derived adipocytes

FEBS Letters, EarlyView.
In this study, we found that human cervical‐derived adipocytes maintain intracellular iron level by regulating the expression of iron transport‐related proteins during adrenergic stimulation. Melanotransferrin is predicted to interact with transferrin receptor 1 based on in silico analysis.
Rahaf Alrifai, Mizuki Seo, Gyath Karadsheh, Fachrur Rizal Mahendra, Máté Á Demény, Ferenc Győry, János András Mótyán, László Fésüs, Endre Kristóf, Rini Arianti   +9 more
wiley   +1 more source

Exposing hidden periodic orbits in scanning force microscopy

Communications Physics
The nonlinear interaction between the tip of a scanning probe microscope (SPM) and a sample is manifested in the emergence of bifurcations and unstable branches in the frequency response of a driven cantilever.
Lukas Böttcher, Hannes Wallner, Niklas Kruse, Wolfram Just, Ingo Barke, Jens Starke, Sylvia Speller   +6 more
doaj   +1 more source

Advanced characterizations of nanoparticles for drug delivery: investigating their properties through the techniques used in their evaluations

Nanotechnology Reviews, 2017
Nanomedicine has achieved a huge success in delivering a wide variety of drug molecules into the target site of the body. In this respect, the characterization of nanoformulation is very important to investigate the drug molecule together with its ...
Mahmood Syed, Mandal Uttam Kumar, Chatterjee Bappaditya, Taher Muhammad   +3 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