Results 41 to 50 of about 547,876 (336)

A Novel Microchip Technique for Quickly Identifying Nanogranules in an Aqueous Solution by Transmission Electron Microscopy: Imaging of Platelet Granules

Applied Sciences, 2020
Ultrastructural observation of biological specimens or nanogranules usually requires the use of electron microscopy. Electron microscopy takes a lot of time, requires many steps, and uses many chemicals, which may affect the native state of biological ...
Nguyen Thi Thu Trang, Jungshan Chang, Wei-An Chen, Chih-Chun Chen, Hui-Min Chen, Chao-Chien Chang, Tsorng-Harn Fong   +6 more
doaj   +1 more source

Effects of Extremely Low Frequency Electromagnetic Fields and Simultaneous Treatment with Allium Cepa on Biochemical Parameters and Ultrastructure of Ovarian Tissues of Rats [PDF]

Iranian Journal of Medical Physics, 2019
Introduction: This study investigated the effects of extremely low frequency electromagnetic fields (ELF-EMF) (50 Hz, 3 mT) on biochemical parameters of rats’ ovarian tissues and the impact of Allium cepa on the reduction of potential adverse influences ...
Elham Mansouri, Ahmad Keshtkar, Arash Khaki, Ehsan Keshtkar, Afshin Khaki   +4 more
doaj   +1 more source

Interpretable and efficient contrast in scanning transmission electron microscopy with a diffraction grating beamsplitter

, 2018
Efficient imaging of biomolecules, 2D materials and electromagnetic fields depends on retrieval of the phase of transmitted electrons. We demonstrate a method to measure phase in a scanning transmission electron microscope using a nanofabricated ...
Chess, Jordan J., Ciston, Jim, Ercius, Peter, Feng, Wenchun, Harvey, Tyler R., Kotov, Nicholas A., McMorran, Benjamin J., Ophus, Colin, Pierce, Jordan S., Reis, Roberto M. S. dos, Yasin, Fehmi S., Özdöl, Vasfi Burak   +11 more
core   +1 more source

Mechanochemical Synthesis and Characterization of Nanostructured ErB4 and NdB4 Rare‐Earth Tetraborides

Advanced Engineering Materials, Volume 27, Issue 6, March 2025.
ErB4 and NdB4 nanostructured powders are produced by mechanochemical synthesis. 5 h mechanical alloying and 4 M HCl acid leaching are used in the production. ErB4 and NdB4 powders exhibit maximum magnetization of 0.4726 emu g−1 accompanied with an antiferromagnetic‐to‐paramagnetic phase transition at about TN = 18 K and 0.132 emu g−1 with a maximum at ...
Burçak Boztemur, Faruk Kaya, Bora Derin, Mustafa Lütfi Öveçoğlu, Ju Li, Duygu Ağaoğulları   +5 more
wiley   +1 more source

Thermoreflectance Detection of Point Defects Resulting from Focused Ion Beam Milling

Advanced Engineering Materials, EarlyView.
Focused ion beam (FIB) milling is a common tool for nanoscale material processing, however irradiation damage, redeposition, and contamination can occur. We use several characterization tools to show FIB‐induced effects beyond 1 mm from the milled area.
Thomas W. Pfeifer, Eric R. Hoglund, Anton V. Ievlev, Patrick E. Hopkins   +3 more
wiley   +1 more source

Enhanced cytotoxic effect on human lung carcinoma cell line (A549) by gold nanoparticles synthesized from Justicia adhatoda leaf extract

Asian Pacific Journal of Tropical Biomedicine, 2018
Objective: To synthesize bio-inspired gold nanoparticles (AuNPs) using the leaf extract of Justicia adhatoda and evaluate the anti-cancer activity on human lung cancer cell line (A549).
D Latha, P Prabu, C Arulvasu, R Manikandan, S Sampurnam, V Narayanan   +5 more
doaj   +1 more source

Highly Coherent Femtosecond Electron Pulses for Ultrafast Transmission Electron Microscopy [PDF]

EPJ Web of Conferences, 2019
We describe the implementation and detailed characterization of a laser-triggered field-emitter electron source integrated into a modified transmission electron microscope. Highly coherent electron pulses enable high resolution ultrafast electron imaging
Bach Nora, Feist Armin, Domrose Till, Danz Thomas, Möller Marcel, Rubiano da Silva Nara, Priebe Katharina, Rathje Christopher, Schafer Sascha, Ropers Claus   +9 more
doaj   +1 more source

Imaging transverse electron focusing in semiconducting heterostructures with spin-orbit coupling

, 2007
Transverse electron focusing in two-dimensional electron gases (2DEGs) with strong spin-orbit coupling is revisited. The transverse focusing is related to the transmission between two contacts at the edge of a 2DEG when a perpendicular magnetic field is ...
A Reynoso, A Reynoso, AO Govorov, D Awschalom, DK Ferry, G Usaj, G Usaj, H Houten van, J Nitta, J Schliemann, KE Aidala, KE Aidala, LP Rokhinson, M Gutzwiller, M Pletyukhov, M Topinka, R Winkler, RM Potok, YA Bychkov   +18 more
core   +1 more source

Scanning ultrafast electron microscopy [PDF]

, 2010
Progress has been made in the development of four-dimensional ultrafast electron microscopy, which enables space-time imaging of structural dynamics in the condensed phase. In ultrafast electron microscopy, the electrons are accelerated, typically to 200
Mohammed, Omar F., Yang, Ding-Shyue, Zewail, Ahmed H.   +2 more
core   +1 more source

Carboxylic‐Acid Functionalized Multiwalled Carbon Nanotube‐Alkane‐Based Resistive Temperature Sensor for Cold Chain Applications

Advanced Engineering Materials, EarlyView.
This study presents a reversible temperature sensor with high switching ratio, ∼103. The device is fabricated using PET‐ITO and carbon nanotube dispersions in alkane. Considering its application in cold chain logistics, a proof‐of‐concept with LED is showcased. Thus, a temperature drop below the threshold temperature (crystallization temperature of the
Sunil Kumar Behera, Philippe Marrec, A. Jorge Parola, Madalena Dionísio, Hugo Águas, Andreia F. M. Santos, Hamed Pourkheirollah, Donald Lupo, César A. T. Laia   +8 more
wiley   +1 more source