Fentimans owner Robson warns that the tax will cost his company much more than the recent National Insurance (NI) rise, stating: “EPR is based on volume. The NI is based on the number of employees.

EPR can be used to investigate organic radicals in proteins, such as tyrosyl, tryptophanyl, glycyl, semiquinones, and flavins. It is also effective for studying metal centres in protein complexes, ...