A clean environment is recognized as imperative for a healthy society from both sanitary and socioeconomic points of view. The presence of recalcitrant micropollutants in the environment is a serious threat as chronic exposure to even a very small amount of such components creates huge health problems for human beings and animal reign, whose effects are predicted to dramatically affect social and economic aspects. 
Therefore, the detection and elimination of micropollutants from water, food, and air is a crucial challenge. 
The combination of highly selective biomacromolecules (such as enzymes) with plasmonic nanocomposite membranes offers unique properties in the development of biosensing and biodegradation systems. 
The lecture will illustrate case studies on enzymes (such as phosphotriesterases), micropollutants (such as organophosphorus pesticides), plasmonic nanoparticles (core-shell iron-gold nanoparticles), and membranes (polymeric hydrophilic, hydrophobic, with tuned microenvironment) for the development of membrane biosensors and biocatalytic membrane reactors. Tests in a close to real environment will be illustrated.

Acknowledgments
The authors would like to thank POR Calabria FESR-FSE 2014/2020 for the financial support to the SmartMatter project within the M-ERA.NET Call 2019.