Microsensor for radioactivity1

摘要

Microsensors for a variety of chemical compounds have been developed1. Their application has enormously enhanced the insight in the functioning of dense microbial communities, as occuring in biofilms, sediments and microbial mats, in which metabolic processes are typically confined to narrow zones of 0.1-10 mm wide. With microsensors high spatial resolution studies are possible towards transport and conversion2, however, the range of compounds that can be measured with chemical microsensors is limited. The here described microsensor for radioactivity allows studies towards transport and binding of all compounds that can be radioactively labelled.