Search results for nanometer

Quantum Physics Jun 27, 2023

Electron tunneling associated with ferritin in vivo in the retina, the cochlea, macrophages and other tissues

Electron tunneling associated with ferritin was proposed as early as 1988, but it is still viewed skeptically despite substantial evidence that it occurs. In our recent paper published in IEEE Transactions on Molecular, Biological ...

Nanomaterials Jun 16, 2023

Overcoming the trade-off between sub-nanometer size and high metal loading in meta cluster catalysts

Recognizing the ultrafast laser-to-thermal conversion capacity and the impermeable, flexible features of graphene Dr. Ye-Chuang Han and Prof. Zhong-Qun Tian conceived the idea of using the material as the diffusion-constrained ...

Analytical Chemistry May 26, 2023

Carbon-based catalysts for oxygen reduction reaction: Mechanistic understanding and porous structure

Proton exchange membrane fuel cells (PEMFC) have attracted much attention because of high conversion efficiency, low environmental pollution, and high specific energy, which can be widely used in vehicles such as automobiles, ...

Nanomaterials May 26, 2023

Team successfully demonstrates laser-induced monolayer graphene nanoprocessing

Discovered in 2004, graphene has revolutionized various scientific fields. It possesses remarkable properties like high electron mobility, mechanical strength, and thermal conductivity. Extensive time and effort has been ...

Optics & Photonics Apr 6, 2023

Ultra-fast light at the end of the vacuum tunnel: Meta-optics shows physical processes in the attosecond range

Developed at Harvard, and successfully tested at Graz University of Technology (TU Graz), a revolutionary new meta-optics for microscopes with extremely high spatial and temporal resolution has proven its functional ability ...

Optics & Photonics Mar 10, 2023

A super-resolution microscopy method for rapid differentiation of molecular structures in 3D

Super-resolution microscopy methods are essential for uncovering the structures of cells and the dynamics of molecules. Since researchers overcame the resolution limit of around 250 nanometers (while winning the 2014 Nobel ...

Biotechnology Mar 10, 2023

Major advance in super-resolution fluorescence microscopy

Scientists led by Nobel Laureate Stefan Hell at the Max Planck Institute for Medical Research in Heidelberg have developed a super-resolution microscope with a spatio-temporal precision of one nanometer per millisecond. An ...

Nanophysics Feb 27, 2023

Exploring chaos on the nanometer scale

Chaotic behavior is typically known from large systems: for example, from weather, from asteroids in space that are simultaneously attracted by several large celestial bodies, or from swinging pendulums that are coupled together. ...

Nanophysics Feb 16, 2023

Smooth sailing for electrons in graphene: Measuring fluid-like flow at nanometer resolution

Physicists at the University of Wisconsin-Madison have directly measured the fluid-like flow of electrons in graphene at nanometer resolution for the first time. The results appear in the journal Science today.

Nanophysics Feb 16, 2023

How a record-breaking copper catalyst converts carbon dioxide into liquid fuels

Since the 1970s, scientists have known that copper has a special ability to transform carbon dioxide into valuable chemicals and fuels. But for many years, scientists have struggled to understand how this common metal works ...

page 17 from 40