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Rabi oscillations in a stretching molecule

Over eighty years ago, Rabi oscillations were proposed to describe the strong coupling and population transfer in a two-level quantum system exposed to an oscillatory driving field. As compared to atoms, molecules have an extra degree of vibration, w.....»»

Category: topSource:  theglobeandmailFeb 3rd, 2023

Can a new technique for capturing "hot" electrons make solar cells more efficient?

A new way of extracting quantitative information from state-of-the-art single molecule experiments has been developed by physicists at the University of Bath. Using this quantitative information, the researchers will be able to probe the ultra-fast p.....»»

Category: topSource:  physorgRelated NewsDec 5th, 2022

Researchers solve 20-year-old optical light mystery

It was believed that it was impossible to differentiate the enantiomers of a chiral molecule using helical light beams—until now that is, thanks to a group of uOttawa researchers......»»

Category: topSource:  physorgRelated NewsDec 1st, 2022

"Digital footprints" central to new approach for studying post-disturbance recreation changes

The Columbia River Gorge is a crown jewel for recreation in the Pacific Northwest, stretching more than 80 miles along the borders of Washington and Oregon and providing a wide variety of trails, campgrounds, waterfalls, and wilderness areas for recr.....»»

Category: topSource:  theglobeandmailRelated NewsNov 30th, 2022

Method predicts accurate stereochemistry of pericyclic reactions using only target molecule structure

Researchers at the Institute for Chemical Reaction Design and Discovery (WPI-ICReDD) have demonstrated the expanded use of a computational method called the artificial-force-induced reaction (AFIR) method, predicting pericyclic reactions with accurat.....»»

Category: topSource:  physorgRelated NewsNov 30th, 2022

Scientists develop novel mode of linear hybridization chain reaction

Hybridization chain reaction refers to an enzyme-free nucleic acid polymerization reaction. A target molecule triggers cascade hybridization reactions by several thermodynamically stable DNA fuel strands, producing ultra-long DNA nanostructures with.....»»

Category: topSource:  physorgRelated NewsNov 28th, 2022

In a First, Scientists See How Water Stores Extra Protons

Scientists capture complex structure in a molecule-deep pool of ice.....»»

Category: scienceSource:  sciamRelated NewsNov 28th, 2022

NASA"s Orion capsule enters far-flung orbit around moon

NASA's Orion capsule entered an orbit stretching tens of thousands of miles around the moon Friday, as it neared the halfway mark of its test flight......»»

Category: topSource:  physorgRelated NewsNov 26th, 2022

A radical new approach in synthetic chemistry

Scientists at the U.S. Department of Energy's (DOE) Brookhaven National Laboratory helped measure how unpaired electrons in atoms at one end of a molecule can drive chemical reactivity on the molecule's opposite side. As described in a paper recently.....»»

Category: topSource:  physorgRelated NewsNov 23rd, 2022

How to Use a Super-Intense Laser to Kick an Electron out of a Molecule

By firing pulses quintillionths of a second long, physicists study the fleeting motion of an electron leaving two bonded atoms......»»

Category: gadgetSource:  wiredRelated NewsNov 18th, 2022

Physicists show how tight "diet" could produce single-chirality carbon nanotubes

Like a giraffe stretching for leaves on a tall tree, making carbon nanotubes reach for food as they grow may lead to a long-sought breakthrough......»»

Category: topSource:  physorgRelated NewsNov 9th, 2022

This Brain Molecule Decides Which Memories Are Happy—or Terrible

When the brain encodes memories as positive or negative, a small peptide called neurotensin determines which way they will go......»»

Category: gadgetSource:  wiredRelated NewsOct 30th, 2022

Artificial intelligence and molecule machine join forces to generalize automated chemistry

Artificial intelligence, "building-block" chemistry and a molecule-making machine teamed up to find the best general reaction conditions for synthesizing chemicals important to biomedical and materials research—a finding that could speed innovation.....»»

Category: topSource:  informationweekRelated NewsOct 28th, 2022

Successful synthesis of rare isotopic atropisomers with high rotational stability

Stereochemistry, or the study of spatial arrangements of the atoms in a molecule, is a highly explored subdiscipline of organic chemistry. It has led to the synthesis of numerous chiral compounds—compounds with non-superimposable mirror images or e.....»»

Category: topSource:  physorgRelated NewsOct 26th, 2022

New enzyme inhibitor shows promise for treating cancers, autoimmune diseases

Researchers at the University of Illinois Chicago have found a small molecule capable of manipulating an immune process that plays an important role in cancers and autoimmune diseases......»»

Category: topSource:  physorgRelated NewsOct 25th, 2022

Tracking the deuterium in raindrops, one molecule at a time

New research led by the University of Massachusetts Amherst refines our understanding of the chemical traces that act as the rain's fingerprint. The work, which appeared recently in Global Biogeochemical Cycles, is crucial for understanding Earth's w.....»»

Category: topSource:  physorgRelated NewsOct 25th, 2022

Force stabilizes a bond in bacterial adhesion

National University of Singapore biophysicists have discovered how a special bacterial adhesion complex could be counterintuitively stabilized by mechanical stress at the single-molecule level......»»

Category: topSource:  physorgRelated NewsOct 25th, 2022

Scientists found a molecule that destroys even the worst cancers in mice

Scientists working at Yale and the University of Rhode Island (URI) have discovered a new molecular cancer treatment that can home in on cancer cells and eradicate tumors in mice. The tests so far have proven to offer exceptionally grand results, and.....»»

Category: gadgetSource:  bgrRelated NewsOct 20th, 2022

Continuous biomarker monitoring with single molecule resolution by measuring free particle motion

Being able to precisely monitor concentrations of biomolecules—important for following diseases and adjusting treatments—requires not only highly specific and sensitive sensors, but also that measurements can take place continuously, over long pe.....»»

Category: topSource:  informationweekRelated NewsOct 19th, 2022

Next-generation single-molecule protein sequencing technology

Researchers from Quantum-Si have published an article in Science that showcases how single-molecule protein sequencing via semiconductor chip and Time Domain Sequencing technologies will transform life science and biomedical research. This first-of-i.....»»

Category: topSource:  physorgRelated NewsOct 13th, 2022

Researchers develop method with single-molecule precision to engineer enzyme "stickiness"

Rutgers University scientists have developed an analytical toolkit to measure the binding forces of single proteins when they are pulled away from their substrate—such as an enzyme—that will help the development of new nanomaterials, improve biof.....»»

Category: topSource:  physorgRelated NewsOct 13th, 2022