Results 61 to 70 of about 1,009,271 (363)

Cathodoluminescence of stacking fault bound excitons for local probing of the exciton diffusion length in single GaN nanowires [PDF]

open access: yes, 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

Advanced glycation end products promote the release of endothelial cell‐derived mitocytosis

open access: yesFEBS Open Bio, EarlyView.
Under diabetic conditions, AGEs induce mitochondrial damage in HUVECs, activating migrasome‐mediated mitocytosis. Migrasomes encapsulate damaged mitochondria and are released into the extracellular space, facilitating intercellular mitochondrial transfer.
Rong Liu   +6 more
wiley   +1 more source

Metabolic and ultrastructural renal changes in adult Wistar rats fed by a cafeteria diet [PDF]

open access: yesActa Cirúrgica Brasileira
Purpose: To evaluate, by quantitative and qualitative methods, the glomerular ultrastructure in Wistar rats fed a cafeteria diet. Methods: Male Wistar rats were divided into two groups at 21 days of age: control (C, n = 10) and cafeteria diet (CAF, n ...
Priscila Fernandes dos Santos   +5 more
doaj   +1 more source

Imaging Flux Vortices in MgB2 using Transmission Electron Microscopy

open access: yes, 2011
We report the successful imaging of flux vortices in single crystal MgB2 using transmission electron microscopy. The specimen was thinned to electron transparency (350 nm thickness) by focussed ion beam milling.
Abrikosov   +16 more
core   +1 more source

Voids and Mn-rich inclusions in a (Ga,Mn)As ferromagnetic semiconductor investigated by transmission electron microscopy [PDF]

open access: yes, 2011
Voids adjacent to both cubic (ZnS-type) and hexagonal (NiAs-type) Mn-rich nanocrystals are characterized using aberration-corrected transmission electron microscopy in annealed Ga0.995Mn0.005As magnetic semiconductor specimen grown by molecular beam epitaxy. Nano-beam electron diffraction measurements suggest that the nanocrystals exhibit deviations in
arxiv   +1 more source

Activation of SIRT1 Reduces Renal Tubular Epithelial Cells Fibrosis in Hypoxia Through SIRT1‐FoxO1‐FoxO3‐Autophagy Pathway

open access: yesAdvanced Biology, EarlyView.
Hypoxia promotes the epithelial‐mesenchymal transition (EMT) of renal tubular epithelial cells via the SIRT1‐FoxO1‐FoxO3‐autophagy pathway, thereby resulting in the fibrosis of renal tubular epithelial cells. Activation of SIRT1 or induction of autophagy inhibits this process, alleviating hypoxia‐induced fibrosis.
Guangyu Wang   +6 more
wiley   +1 more source

Cryogenic transmission electron microscopy of recombinant tuberculosis vaccine antigen with anionic liposomes reveals formation of flattened liposomes

open access: yesInternational Journal of Nanomedicine, 2014
Christopher B Fox,1 Sean K Mulligan,2 Joyce Sung,2 Quinton M Dowling,1 H W Millie Fung,1 Thomas S Vedvick,1 Rhea N Coler1 1Infectious Disease Research Institute, Seattle, WA, USA; 2NanoImaging Services, La Jolla, CA, USA Abstract: Development of lipid ...
Fox CB   +6 more
doaj  

Is Small Perfect? Size Limit to Defect Formation in Pyramidal Pt Nanocontacts [PDF]

open access: yes, 2007
We report high resolution transmission electron microscopy and ab initio calculation results for the defect formation in Pt nanocontacts (NCs). Our results show that there is a size limit to the existence of twins (extended structural defects).
D. S. Galvão   +5 more
core   +3 more sources

Cluster Imaging with a Direct Detection CMOS Pixel Sensor in Transmission Electron Microscopy [PDF]

open access: yesNucl.Instrum.Meth.A608:363-365,2009, 2009
A cluster imaging technique for Transmission Electron Microscopy with a direct detection CMOS pixel sensor is presented. Charge centre-of-gravity reconstruction for individual electron clusters improves the spatial resolution and thus the point spread function.
arxiv   +1 more source

The Potential for Extracellular Vesicles in Nanomedicine: A Review of Recent Advancements and Challenges Ahead

open access: yesAdvanced Biology, EarlyView.
Extracellular vesicles (EVs) play a dual role in diagnostics and therapeutics, offering innovative solutions for treating cancer, cardiovascular, neurodegenerative, and orthopedic diseases. This review highlights EVs’ potential to revolutionize personalized medicine through specific applications in disease detection and treatment.
Farbod Ebrahimi   +4 more
wiley   +1 more source

Home - About - Disclaimer - Privacy