Electrochemical sensors for new challenges

This chapter focuses upon new challenges faced by today's society which electrochemical sensors maybe able to address. Focusing primarily upon two of the major challenges faced at the time of writing; the opioid crisis caused by fentanyl and the deadly Covid-19 pandemic, the employment of electrochemical sensors is assessed to determine the contribution they could make toward tackling these problems. Although only a small scope of the electrochemical research present is covered within this chapter the principles discussed are directly translated to other fields where electrochemical sensors could be applied. This chapter to aims to highlight the uses of electrochemical sensors and discusses in detail both their advantages but also where further improvements are required to improve their applications across a range of fields.