Carole Ecoffet is a senior scientist at CNRS since 1995. She holds a diploma from ESPCI Paris (École Supérieure de Physique et de Chimie Industrielles and a PhD in physico-chemistry from Paris 11 University. Her scientific research at IS2M (Institut de Science des Matériaux de Mulhouse, UMR7361) lies at the interface between material science and optics. She studies interactions between light and materials. She studies also set-up and processes for micro and nano-fabrication, in connections with 3D printing by photolithography processes. Besides her scientific research, she also gives public lectures to stimulate young people’s interest in S&T and to communicate to non-specialist about up-to date scientific challenges. For few years, she is working with visual artists. Beyond speculative exchanges, projects leads to concrete works for which one have to challenge practical questions by innovative pathways. Working with artists questions practices and certainties arising from the labs. Artists residencies have led to artworks productions and analysis of the practices have been presented in academic lectures. These studies are in connection with a laboratory of epistemology and of philosophy of science, Archives Henri Poincaré – Philosophie et Recherches sur les Sciences et les Technologies (UMR 7117), where she is associate researcher.