Conjugated tetraenes from butadiene and alkynes

Ruthenium catalysts opens mild, efficient synthesis route

16-Jan-2018 - Conjugated tetraenes are important key substructures in electronic materials, natural products and pharmaceutical molecules. However, they are difficult to synthesize. They are conventionally prepared by repetitions of the stoichiometric reactions using phosphorus reagents and subsequent ...

Industrial product and component labeling for extreme process conditions

31-Mar-2016 - Researchers at Fraunhofer IKTS developed a robust solution for the individual labeling of components and products. It withstands extreme environmental influences, can be applied within seconds and read-out reliably. Therefore, the new development is suitable for the integration into industrial ...

Protecting olive oil from counterfeiters

28-Apr-2014 - Who guarantees that expensive olive oil isn't counterfeit or adulterated? An invisible label, developed by ETH researchers, could perform this task. The tag consists of tiny magnetic DNA particles encapsulated in a silica casing and mixed with the oil. Just a few grams of the new substance are ...