Results 61 to 70 of about 442,453 (293)

Optical and electron microscopy imaging of model circulating tumour cells

Біофізичний вісник
Background: Microscopy is a key tool in biophysical research for visualizing living cells' morphology, structure, and dynamic processes. Depending on the specific research goals, various optical and electron microscopy techniques can be applied, each ...
Марина Оленчук, Григорій Монастирський, Олена Гнатюк, А. Бойзен, Ч. Чжан, Галина Солянік, Денис Колесник, Сергій Карахім, Галина Довбешко   +8 more
doaj   +1 more source

Three-dimensional nanoscale imaging by plasmonic Brownian microscopy

Nanophotonics, 2017
Three-dimensional (3D) imaging at the nanoscale is a key to understanding of nanomaterials and complex systems. While scanning probe microscopy (SPM) has been the workhorse of nanoscale metrology, its slow scanning speed by a single probe tip can limit ...
Labno Anna, Gladden Christopher, Kim Jeongmin, Lu Dylan, Yin Xiaobo, Wang Yuan, Liu Zhaowei, Zhang Xiang   +7 more
doaj   +1 more source

Analysing the significance of small conformational changes and low occupancy states in serial crystallographic data

FEBS Open Bio, EarlyView.
This protocol paper outlines methods to establish the success of a time‐resolved serial crystallographic experiment, by means of statistical analysis of timepoint data in reciprocal space and models in real space. We show how to amplify the signal from excited states to visualise structural changes in successful experiments.
Jake Hill, Yelyzaveta Pulnova, Elke De Zitter, Helen M. Ginn, Briony A. Yorke   +4 more
wiley   +1 more source

Sudden anaerobization in Amphibacillus xylanus increases intracellular labile ferrous iron and inhibits cell growth

FEBS Open Bio, EarlyView.
Abruptly changing from aerobic to anaerobic conditions (sudden anaerobization) induced growth inhibition and a significant increase in intracellular labile ferrous iron in the aerotolerant anaerobe Amphibacillus xylanus. We found that free flavins mediate efficient electron transfer from NADH to ferric iron under anaerobic conditions, suggesting that ...
Shinya Kimata, Yoichi Sakai, Keisuke Tanaka, Etsuro Yoshimura, Ken Kitano, Morio Ishikawa, Tadahiro Nakamoto, Tsutomu Takayama, Hirofumi Inoue, Kaho Nomura, Tomonori Suzuki, Masataka Uchino, Akira Abe, Youichi Niimura   +13 more
wiley   +1 more source

Helium Ion Microscopy [PDF]

, 2014
Helium Ion Microcopy (HIM) based on Gas Field Ion Sources (GFIS) represents a new ultra high resolution microscopy and nano-fabrication technique. It is an enabling technology that not only provides imagery of conducting as well as uncoated insulating ...
Hlawacek, Gregor, Poelsema, Bene, van Gastel, Raoul, Veligura, Vasilisa   +3 more
core   +2 more sources

UiO‐66 metal–organic frameworks in biomedicine: From structural tunability to bioimaging, photodiagnostics, and photodynamic cancer therapy

FEBS Open Bio, EarlyView.
UiO‐66(Zr) metal–organic frameworks are chemically stable, biocompatible, and highly tunable nanomaterials. Their modular structure enables controlled drug delivery, multimodal bioimaging, and light‐activated photodynamic therapy, supporting integrated diagnostic and therapeutic (theranostic) applications in cancer and biomedical research.
Veronika Huntošová, Grigorii Rakhalskii, Miroslav Almáši   +2 more
wiley   +1 more source

4D Scanning Ultrafast Electron Microscopy: Visualization of Materials Surface Dynamics [PDF]

, 2011
The continuous electron beam of conventional scanning electron microscopes (SEM) limits the temporal resolution required for the study of ultrafast dynamics of materials surfaces. Here, we report the development of scanning ultrafast electron microscopy (
Mohammed, Omar F., Pal, Samir Kumar, Yang, Ding-Shyue, Zewail, Ahmed H.   +3 more
core   +1 more source

Evaluating the involvement of autolysosomes in the nuclear translocation of fluorescent proteins

FEBS Open Bio, EarlyView.
Endogenously expressed fluorescent proteins can be degraded by autophagy and transported to cell nuclei via the nuclear pore complex. But in some cell lines, for example, HeLa cells which are positive for immunoreactivity of a receptor ligand, such as UCN I, in cell nuclei, fusion of autolysosome with the nuclear envelope is involved in the nuclear ...
Keiichi Ikeda
wiley   +1 more source

Core-Shell Structures of Upconversion Nanocrystals Coated with Silica for Near Infrared Light Enabled Optical Imaging of Cancer Cells

Micromachines, 2018
Optical imaging of cancer cells using near infrared (NIR) light is currently an active area of research, as this spectral region directly corresponds to the therapeutic window of biological tissues.
Kumbam Lingeshwar Reddy, Neeraj Prabhakar, Jessica M. Rosenholm, Venkata Krishnan   +3 more
doaj   +1 more source

Electronic inhomogeneity in EuO: Possibility of magnetic polaron states

, 2008
We have observed the spatial inhomogeneity of the electronic structure of a single-crystalline electron-doped EuO thin film with ferromagnetic ordering by employing infrared magneto-optical imaging with synchrotron radiation.
A. K. Zvezdin, E. L. Nagaev, H. Miyazaki, Hidetoshi Miyazaki, N. W. Ashcroft, O. Sakai, S. Kimura, S. Kimura, Shin-ichi Kimura, T. Mitani, Takafumi Mizuno, Takahiro Ito, Takuya Iizuka, Toshiharu Takahashi   +13 more
core   +1 more source