Results 51 to 60 of about 5,316,321 (325)
Measuring the effects of ice thickness on resolution in single particle cryo-EM
Journal of Structural Biology: X, 2023 Ice thickness is a critical parameter in single particle cryo-EM – too thin ice can break during imaging or exclude the sample of interest, while ice that is too thick contributes to more inelastic scattering that precludes obtaining high resolution ...
Kasahun Neselu +5 more
doaj +1 more source
Four-dimensional ultrafast electron microscopy of phase transitions [PDF]
, 2006 Reported here is direct imaging (and diffraction) by using 4D ultrafast electron microscopy (UEM) with combined spatial and temporal resolutions. In the first phase of UEM, it was possible to obtain snapshot images by using timed, single-electron packets;
A. H. Zewail +12 more
core +2 more sources
Mapping the evolution of mitochondrial complex I through structural variation
FEBS Letters, EarlyView.Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin +2 more
wiley +1 more source
Three-dimensional distribution of individual atoms in the channels of beryl
Communications MaterialsSingle atom detection in nanoporous materials is a significant challenge, particularly due to their sensitivity to electron irradiation. Here, natural beryl (Be3Al2Si6O18) is used as a model system to quantitatively analyse the occupancy of its atomic ...
Daniel Knez +9 more
doaj +1 more source
Scientific Reports, 2021 Shigellosis, caused by Shigella bacterial spp., is one of the leading causes of diarrheal morbidity and mortality. An increasing prevalence of multidrug-resistant Shigella species has revived the importance of bacteriophages as an alternative therapy to ...
Bani Mallick +2 more
doaj +1 more source
Thermokinetic Study of Aluminum-Induced Crystallization of a-Si: The Effect of Al Layer Thickness
Nanomaterials, 2023 The effect of the aluminum layer on the kinetics and mechanism of aluminum-induced crystallization (AIC) of amorphous silicon (a-Si) in (Al/a-Si)n multilayered films was studied using a complex of in situ methods (simultaneous thermal analysis ...
Sergey M. Zharkov +8 more
doaj +1 more source
Biomass derived mesoporous carbon monoliths via an evaporation-induced self-assembly [PDF]
, 2013 Evaporation-induced self-assembly has been applied in the synthesis of crack-free mesoporous carbon monolith with good mechanical stability using a waste plant material as carbon precursor and triblock copolymer F127 as template.
Elaigwu, Sunday E., Greenway, Gillian M.
core +1 more source
FEBS Letters, EarlyView.Atovaquone is an antimalarial requiring potentiation for sufficient efficacy. We pursued strategies to enhance its activity, showing that 4‐nitrobenzoate inhibits 4‐hydroxybenzoate polyprenyltransferase, decreasing ubiquinone biosynthesis. Since atovaquone competes with ubiquinol in mitochondria, 4‐nitrobenzoate facilitates its action, potentiating ...
Ignasi Bofill Verdaguer +7 more
wiley +1 more source
Cathodoluminescence of stacking fault bound excitons for local probing of the exciton diffusion length in single GaN nanowires [PDF]
, 2014 We perform correlated studies of individual GaN nanowires in scanning electron microscopy combined to low temperature cathodoluminescence, microphotoluminescence, and scanning transmission electron microscopy.
Bruno Daudin +5 more
core +4 more sources
Scanning Electron Microscopy [PDF]
Current Protocols in Microbiology, 2012 AbstractScanning electron microscopy (SEM) remains distinct in its ability to allow topographical visualization of structures. Key elements to consider for successful examination of biological specimens include appropriate preparative and imaging techniques.
Vinod Nair +4 more
openaire +3 more sources