Home > News > Electron Microscopy For Chemists: Advances in imaging and elemental analysis move TEM toward the realm of analytical chemistry
June 24th, 2008
Electron Microscopy For Chemists: Advances in imaging and elemental analysis move TEM toward the realm of analytical chemistry
Abstract:
CRUISING AT about half the speed of light, tightly focused beams of electrons pass through thin slices of materials and carry away subtle information about the substance's structure and composition. Commonly known as transmission electron microscopy (TEM), this high-energy method has been used for decades to deduce the positions of rows of atoms in solids, often with angstrom-level resolution.
Traditionally, TEM's strong suit has been spotting the odd men out—out-of-place atoms and other types of crystal lattice defects. But scientists are increasingly pushing the limits of TEM to extract chemical information from microscopy samples, and they are doing so with ever finer spatial resolution.
"Angstrom by angstrom, TEM is moving toward imaging individual lightweight atoms," such as those making up organic molecules, says Laurence D. Marks, a microscopist and professor of materials science at Northwestern University. At the same time, the field is progressing toward atomic-scale chemical analysis of lightweight atoms, as new instrument designs enable microscopy and spectroscopy to be carried out simultaneously.
Source:
pubs.acs.org
Bookmark:
| Related News Press |
News and information
Sensors innovations for smart lithium-based batteries: advancements, opportunities, and potential challenges August 8th, 2025
Deciphering local microstrain-induced optimization of asymmetric Fe single atomic sites for efficient oxygen reduction August 8th, 2025
Lab to industry: InSe wafer-scale breakthrough for future electronics August 8th, 2025
Imaging
ICFO researchers overcome long-standing bottleneck in single photon detection with twisted 2D materials August 8th, 2025
Simple algorithm paired with standard imaging tool could predict failure in lithium metal batteries August 8th, 2025
First real-time observation of two-dimensional melting process: Researchers at Mainz University unveil new insights into magnetic vortex structures August 8th, 2025
Chemistry
Cambridge chemists discover simple way to build bigger molecules – one carbon at a time June 6th, 2025
Single-atom catalysts change spin state when boosted by a magnetic field June 4th, 2025
Quantum interference in molecule-surface collisions February 28th, 2025
Chainmail-like material could be the future of armor: First 2D mechanically interlocked polymer exhibits exceptional flexibility and strength January 17th, 2025
Interviews/Book Reviews/Essays/Reports/Podcasts/Journals/White papers/Posters
New molecular technology targets tumors and simultaneously silences two ‘undruggable’ cancer genes August 8th, 2025
Simple algorithm paired with standard imaging tool could predict failure in lithium metal batteries August 8th, 2025
First real-time observation of two-dimensional melting process: Researchers at Mainz University unveil new insights into magnetic vortex structures August 8th, 2025
Lab to industry: InSe wafer-scale breakthrough for future electronics August 8th, 2025
 |
||
 |
||
| The latest news from around the world, FREE | ||
 |
||
|
|
||
| Premium Products | ||
 |
||
|
Only the news you want to read!
Learn More |
||
 |
||
|
Full-service, expert consulting
Learn More |
||
|
|
||