Results 71 to 80 of about 1,958,418 (224)

In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS

open access: yesFEBS Letters, EarlyView.
We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka   +11 more
wiley   +1 more source

Synthesis and characterization of BaO nanorods using azadirachta indica (neem) leaf extract for environmental applications

open access: yesSouth African Journal of Chemical Engineering
Barium oxide nanorods were synthesized using the coprecipitation method in the presence of Azadirachta indica (neem) leaf extract as a stabilizing and protective agent.
Valeria Quintana Mejia   +3 more
doaj   +1 more source

Investigation of the thermal stability of Mg/Co periodic multilayers for EUV applications [PDF]

open access: yes, 2011
We present the results of the characterization of Mg/Co periodic multilayers and their thermal stability for the EUV range. The annealing study is performed up to a temperature of 400\degree C. Images obtained by scanning transmission electron microscopy
A. Giglia   +43 more
core   +3 more sources

Near-field microwave techniques for micro- and nano-scale characterization in materials science [PDF]

open access: yes2017 International Semiconductor Conference (CAS), 2017
In this paper, the basic principles of Near-Field Microscopy will be reviewed with focus on the micro- and nano-scale resolution configurations for material science measurements. Results on doping profile, dielectric and magnetic properties will be presented, with details on the calibration protocols needed for quantitative estimation of the dielectric
Romolo Marcelli   +10 more
openaire   +2 more sources

Structural instability impairs function of the UDP‐xylose synthase 1 Ile181Asn variant associated with short‐stature genetic syndrome in humans

open access: yesFEBS Letters, EarlyView.
The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li   +2 more
wiley   +1 more source

Casein and soybean protein-based thermoplastics and composites as alternative biodegradable polymers for biomedical applications [PDF]

open access: yes, 2003
This work reports on the development and characterization of novel meltable polymers and composites based on casein and soybean proteins. The effects of inert (Al(2)O(3)) and bioactive (tricalcium phosphate) ceramic reinforcements over the mechanical ...
Adriano   +23 more
core   +3 more sources

Cell wall target fragment discovery using a low‐cost, minimal fragment library

open access: yesFEBS Letters, EarlyView.
LoCoFrag100 is a fragment library made up of 100 different compounds. Similarity between the fragments is minimized and 10 different fragments are mixed into a single cocktail, which is soaked to protein crystals. These crystals are analysed by X‐ray crystallography, revealing the binding modes of the bound fragment ligands.
Kaizhou Yan   +5 more
wiley   +1 more source

A Study on Optical Properties of Zinc Silicate Glass-Ceramics as a Host for Green Phosphor

open access: yesApplied Sciences, 2020
For the very first time, a study on the crystallization growth of zinc silicate glass and glass-ceramics was done, in which white rice husk ash (WRHA) was used as the silicon source.
Siti Aisyah Abdul Wahab   +9 more
doaj   +1 more source

Chemical vapour deposition of Ir-based coatings : chemistry, processes and applications [PDF]

open access: yes, 2015
Chemical and materials science aspects of iridium-containing thin film formation by Chemical Vapor Deposition (CVD) methods for modern high-precision technology applications are considered. Chemical approaches to the synthesis of the main precursors used
Aaltonen   +115 more
core   +1 more source

Structural biology of ferritin nanocages

open access: yesFEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source

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