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
Quantum computer improves AI predictions April 17th, 2026
Flexible sensor gains sensitivity under pressure April 17th, 2026
A reusable chip for particulate matter sensing April 17th, 2026
Detecting vibrational quantum beating in the predissociation dynamics of SF6 using time-resolved photoelectron spectroscopy April 17th, 2026
Imaging
Chemistry
Projecting light to dispense liquids: A new route to ultra-precise microdroplets January 30th, 2026
From sensors to smart systems: the rise of AI-driven photonic noses January 30th, 2026
"Nanoreactor" cage uses visible light for catalytic and ultra-selective cross-cycloadditions October 3rd, 2025
Interviews/Book Reviews/Essays/Reports/Podcasts/Journals/White papers/Posters
A fundamentally new therapeutic approach to cystic fibrosis: Nanobody repairs cellular defect April 17th, 2026
UC Irvine physicists discover method to reverse ‘quantum scrambling’ : The work addresses the problem of information loss in quantum computing system April 17th, 2026
 |
||
 |
||
| 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 |
||
|
|
||