Bringing matter out of equilibrium entails the appearance of emergent properties, the study of which is currently the subject of great interest. Our objectives include nonequilibrium processes that take place both on very small scales, such as those generated by forces induced by fluctuations, and on the larger scales characteristic of transport processes. More specifically, we will focus on studying Casimir effects in chiral molecules, radiative heat transfer between nanostructures and anomalous thermophoresis.