Results 81 to 90 of about 2,385,614 (399)

Fast Scanning Probe Microscopy via Machine Learning: Non-rectangular scans with compressed sensing and Gaussian process optimization [PDF]

arXiv, 2020
Fast scanning probe microscopy enabled via machine learning allows for a broad range of nanoscale, temporally resolved physics to be uncovered. However, such examples for functional imaging are few in number. Here, using piezoresponse force microscopy (PFM) as a model application, we demonstrate a factor of 5.8 improvement in imaging rate using a ...
arxiv  

On the imaging of electron transport in semiconductor quantum structures by scanning-gate microscopy: successes and limitations [PDF]

Semicond. Sci. Technol. 26, 064008 (2011), 2011
This paper presents a brief review of scanning-gate microscopy applied to the imaging of electron transport in buried semiconductor quantum structures. After an introduction to the technique and to some of its practical issues, we summarise a selection of its successful achievements found in the literature, including our own research.
arxiv   +1 more source

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

Advanced 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, Anjali Kumari, Samaneh Ghadami, Saqer Al Abdullah, Kristen Dellinger   +4 more
wiley   +1 more source

High resolution scanning electron microscopy of cells using dielectrophoresis. [PDF]

PLoS ONE, 2014
Ultrastructural analysis of cells can reveal valuable information about their morphological, physiological, and biochemical characteristics. Scanning electron microscopy (SEM) has been widely used to provide high-resolution images from the surface of ...
Shi-Yang Tang, Wei Zhang, Rebecca Soffe, Sofia Nahavandi, Ravi Shukla, Khashayar Khoshmanesh   +5 more
doaj   +1 more source

Scan Coil Dynamics Simulation for Subsampled Scanning Transmission Electron Microscopy [PDF]

arXiv, 2023
Subsampling and fast scanning in the scanning transmission electron microscope is problematic due to scan coil hysteresis - the mismatch between the actual and assumed location of the electron probe beam as a function of the history of the scan. Hysteresis limits the resolution of the microscope and can induce artefacts in our images, particularly ...
arxiv  

Labyrinthine Island Growth during Pd/Ru(0001) Heteroepitaxy [PDF]

, 2007
Using low energy electron microscopy we observe that Pd deposited on Ru only attaches to small sections of the atomic step edges surrounding Pd islands. This causes a novel epitaxial growth mode in which islands advance in a snakelike motion, giving rise
A. K. Schmid, A. Pimpinelli, F. El Gabaly, J. de la Figuera, K. Thürmer, N. C. Bartelt, N. Rougemaille, R. Stumpf   +7 more
core   +4 more sources

RhoA and Rac1 as Mechanotransduction Mediators in Colorectal Cancer

Advanced Biology, EarlyView.
Analysing RhoA and Rac1 protein levels in Colorectal cancer (CRC) samples under mechanical strain highlights their potential as diagnostic markers. Monitoring their activity could offer valuable insights into how cancer spreads, paving the way for new approaches to better understand and diagnose colorectal cancer.
Sharda Yadav, Sanjaya KC, Mark A. T. Blaskovich, Cu‐tai Lu, Alfred K Lam, Nam‐Trung Nguyen   +5 more
wiley   +1 more source

Novel Biologically Active Glass Fiber Functionalized Using Magnesium Phosphate Cement Promotes Bone and Vascular Regeneration

Advanced Biology, EarlyView.
In this study, a new type of bioactive glass fiber ‐based composite magnesium phosphate bone cement is prepared and verified that its mechanical strength and biological properties. In addition, the cement may have played a biologically active role in the Notch and HIF signaling pathways.
Yuzheng Lu, Yanbo Shan, Yingjie Xiong, Jianting Ye, Yanbin Wu, Jipeng Song, Yao Zhang, Wancheng Lin, Haoye Meng, Wenjing Xu, Jiang Peng, Qiang Lu, Lixiang Ding   +12 more
wiley   +1 more source

A survey of fractured SrTiO$_3$ surfaces: from the micro-meter to nano-meter scale

, 2010
Cross-sectional scanning tunneling microscopy was utilized to study fractured perovskie oxide surfaces. It was found for the non-cleavable perovskite oxide, SrTiO$_{3}$, that atomically flat terraces could be routinely created with a controlled ...
Chien, TeYu, Freeland, John W., Guisinger, Nathan P.   +2 more
core   +1 more source

Efficient linear phase contrast in scanning transmission electron microscopy with matched illumination and detector interferometry

Nature Communications, 2016
The ability to image light elements in soft matter at atomic resolution enables unprecedented insight into the structure and properties of molecular heterostructures and beam-sensitive nanomaterials.
C. Ophus, J. Ciston, Jordan S. Pierce, Tyler R. Harvey, J. Chess, B. McMorran, C. Czarnik, H. Rose, P. Ercius   +8 more
semanticscholar   +1 more source