Towards new reaction pathways

Insights on molecular dynamics in the ultrashort time window following UV excitation

30-Oct-2024 - The Attosecond Science group at the Center for Free-Electron Laser Science at DESY has developed a novel light source capable of producing extremely short pulses for the investigation of UV-induced molecular dynamics with unprecedented temporal resolution. Scientists from DESY and the University ...

Optical Frequency Combs Make Ultraviolet Spectroscopy More Sensitive and More Precise

The development promises advances in several scientific and technological fields

18-Mar-2024 - In a recent publication in Nature, researchers at the Max Born Institute (MBI) in Berlin, Germany, and at Max-Planck Institute of Quantum Optics in Garching report on a new technique for deciphering the properties of matter with light, that can simultaneously detect and precisely quantify many ...

An ultrafast glimpse of the photochemistry of the atmosphere

15-Oct-2019 - Researchers at Ludwig-Maximilians-Universitaet (LMU) in Munich have explored the initial consequences of the interaction of light with molecules on the surface of nanoscopic aerosols. The nanocosmos is constantly in motion. All natural processes are ultimately determined by the interplay between ...

Simple and Fast Method for Radiolabelling Antibodies against Breast Cancer

Using UV light, radiolabelled antibodies can be produced in just 15 minutes

24-Apr-2019 - Radioactive antibodies that target cancer cells are used for medical diagnostics with PET imaging or for targeted radioimmunotherapy. Researchers from the University of Zurich have created a new method for radiolabelling antibodies using UV light. In less than 15 minutes, the proteins are ...

New cost-effective instrument measures molecular dynamics on a picosecond timescale

19-Jul-2018 - Studying the photochemistry, or chemical results of light, has shown that ultraviolet radiation can set off harmful chemical reactions in the human body and, alternatively, can provide "photo-protection" by dispersing extra energy. To better understand the dynamics of these photochemical ...

Holograms for molecules

27-Sep-2017 - Much can be detected in blood or urine: viral illnesses, metabolic disorders or autoimmune diseases can be diagnosed with laboratory tests, for instance. But such examinations often take a few hours and are quite complex, which is why doctors hand the samples over to specialist ...

Seeing energized light-active molecules proves quick work for Argonne scientists

12-Sep-2016 - For people who enjoy amusement parks, one of the most thrilling sensations comes at the top of a roller coaster, in the split second between the end of the climb and the rush of the descent. Trying to take a picture at exactly the moment that the roller coaster reaches its zenith can be difficult ...

Naturally fluorescent molecules may serve as cancer biomarker

07-Apr-2009 - Excess amounts of a naturally fluorescent molecule found in all living cells could serve as a natural biomarker for cancer, according to bioengineers. NADH, or nicotinamide adenine dinucleotide, is a key coenzyme found mostly in the inner membrane of a cell's power plant, or mitochondria. It ...

Copper(I) interlocks rings and rods

11-Mar-2009 - Scientists in France have synthesised highly functional [4]pseudorotaxanes utilising the gathering and threading effect of copper(I). Jean-Pierre Sauvage, Jean-Paul Collin, Valérie Heitz and colleagues from the University of Strasbourg, in France, have prepared a highly functional interlocking ...

Super-sensitive spray-on explosive detector

27-May-2008 - US scientists have designed a new spray-on explosive detector sensitive enough to detect just a billionth of a gram of explosive. After treatment the explosive glows blue under UV light, making it perfect for use in the field. William Trogler and his team at the University of California, San ...