The VolThinSens project found its inspiration in previous investigations by the principal investigator. These were based on voltammetry membranes backside contacted with a thin film of a redox active polymer that modulates any ion-transfer event at the sample-membrane interface. Preliminary research manifested a clear potential towards new ion sensing platforms, yet with rather rudimentary knowledge about the working principle and the directions to be followed for an appropriate development of the concept at that time. Now, the VolThinSens project has demonstrated notable progress beyond the state of the art and placing Voltammetry Thin layer membrane Sensors (VolThinSens) on the top of the current wave of chemical information digitization by means of electrochemistry techniques. The strategical combination of materials, fundamental mechanisms and electrochemically controlled readouts has led to the tangible proof that certain challenging societal needs involving ions detection can be successfully addressed. In particular, the results in VolThinSens demonstrate the possibility to gain insight into pharmaceutical fabrication control according to establish policies and patients control in real time, contributing hence to the EU social welfare. It is also feasible to collect information related to biogeochemical processes relevant to understand EU aquatic systems, but also for predictions of toxicological impact, to protect ecosystems and human health assuring a sustainable management (EU policy and legislation) as well as prevention of economic losses. Overall, the interpretation of any observation provided by the sensors developed in VolThinSens is expected to contribute to the materialization of EU pharmacological, clinical and environmental (but also others) directives concerning relevant information, impact assessments, preventing and remedying damage, official regulations, monitoring if legislation and reporting of infringements, among others.
