Eliezer Velásquez is a Chemical Engineer from the University of Zulia (Venezuela), Chemical Civil Engineer from the University of Chile, Master in Chemical Engineering and a PhD in Engineering from the University of Zulia. Since 2017, Researcher at the Packaging Innovation Center of the University of Santiago de Chile (LABEN-USACH) in the research line "Packaging Technology". Research consultant at the Center for the Development of Nanoscience and Nanotechnology (CEDENNA, Chile). Professor of Packaging at the University of Chile and in the International Diploma of Packaging at the University of Santiago de Chile. Full-time Academic of the Faculty of Engineering of the University of Zulia, Venezuela (2009–2017). Professor of courses related to engineering careers (2006–2008). Experiences in basic and applied research for the industry on synthesis and characterization of polymers, production and characterization of nanocomposites, plastic recycling, development of new polymeric materials based on recycled or biodegradable plastics towards sustainability and circular economy, functional polymers and food packaging.