Researchers “film” novel catalyst at work

15-Aug-2023 - A novel catalysis scheme enables chemical reactions that were previously virtually impossible. The method developed at the University of Bonn is also environmentally friendly and does not require rare and precious metals. The researchers recorded the exact course of the catalysis in a kind of ...

For shorter approval times: New process simulates decomposition of too long stored drugs in 15 minutes

New approach represents a paradigm shift in the application of mechanochemical processes in organic chemistry

31-May-2023 - Before their approval, pharmaceuticals not only have to be tested for their effectiveness and safety, but also for their stability, since they are usually stored in pharmacies and private households for years and are not allowed to change. To test their stability, a process is needed that ...

New method for the measurement of nano-structured light fields

Researchers combine nano-optics and organic chemistry to measure complex light landscapes in the tight focus of a laser beam

24-Sep-2019 - Structured laser light has already opened up various different applications: it allows for precise material machining, trapping, manipulating or defined movement of small particles or cell compartments, as well as increasing the bandwidth for next-generation intelligent computing. If these light ...

Smog laid bare: Precise analysis of the composition of particulate matter

22-May-2018 - Smog is a problem. But the knowledge about its constituents - no longer. Researchers from several leading Warsaw scientific institutions have joined forces and developed a new, extremely precise method for the chemical analysis of suspended particulate matter. The method, easily adaptable in many ...

Written in Red

Red-Emitting Dyes for Optical Microscopy and Nanoscopy

08-Jul-2010 - Far-field optical nanoscopy methods, especially STED (stimulated emission depletion), pose very strict and, at times, contradictory requirements on the utilized fluorescent markers. Photostable fluorescent dyes that absorb in the red optical region are indispensable as labels for various micro- ...

Andalusian scientists study plant compounds to unmask latent HIV virus

20-Nov-2009 - Researchers from the University of Cadiz and the University of Cordoba study different plant substances to “awaken” the latent HIV-1 virus, immune to the current therapy, and to obtain more effective treatments in the future. The current antiretroviral therapy does not work on the virus in its ...

Nanocapsules for artificial photosynthesis

10-Nov-2009 - Imitating photosynthesis in plants? If we were to accomplish this, mankind would have a little less to worry about. Chemists from the University of Würzburg have now made progress on the road to achieving artificial photosynthesis. The structure that has been developed in the university's ...

New biosensor can detect bacteria instantaneously

10-Sep-2009 - A research group from the Rovira i Virgili University (URV) in Tarragona has developed a biosensor that can immediately detect very low levels of Salmonella typhi , the bacteria that causes typhoid fever. The technique uses carbon nanotubes and synthetic DNA fragments that activate an electric ...

Weizmann Institute Scientists Develop a Unique Approach for Splitting Water into Hydrogen and Oxygen

07-Apr-2009 - Weizmann Institute scientists have devised a unique new mechanism for the formation of hydrogen and oxygen from water, without the need for sacrificial chemical agents, through individual steps, using light. The design of efficient systems for splitting water into hydrogen and oxygen, driven by ...

Researchers explain odd oxygen bonding under pressure

06-Aug-2008 - Oxygen changes its forms dramatically under pressure transforming to a solid with spectacular colors. Eventually it becomes metallic and a superconductor. The underlying mechanism for these remarkable phenomena has been fascinating to scientists for decades; especially the origin of the recently ...