New catalytic process completely breaks down nylon-6 in minutes

Nylon-6 can be rapidly broken down by a new catalytic process without generating harmful byproducts or requiring toxic solvents. The metallocene catalytic system, which is based on earth-abundant early transition and lanthanide metals, depolymerises the material at unprecedented rates. Using this catalyst, the team was able to recover 99% of the nylon-6’s monomers, which could then be […]

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Lapsed US chemical security programme leaves facilities at risk

There are continued warnings that the US has been without a chemical security programme since late July, leaving more than 3000 high-risk chemical facilities in the country vulnerable to terrorist, cyber- and physical attacks. The Chemical Facility Anti-Terrorism Standards (CFATS) programme, which was authorised 17 years ago and is managed by the Cybersecurity and Infrastructure […]

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Molecular movie captures DNA repair from start to finish

An international team of researchers has used time-resolved ultrafast crystallography to follow the progress of DNA repair by a photolyase enzyme. The work is ‘the first structural characterisation of a full enzyme reaction cycle,’ says Manuel Maestre-Reyna, who led the research. [embedded content] While many of the stages of this process have been studied before, […]

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Interstellar ices could have been the nursery for building blocks of life

Carbamic acid could have formed alongside stars and planets within interstellar ices and could have served as a molecular building block for complex amino acids. The researchers who conducted the work said the findings could be used to train instruments like the James Webb Space Telescope to search for prebiotic molecules in distant, star-forming regions […]

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