The 6th Edition Smart Materials & Surfaces conference, SMS 2021, is a three-days event targeting researchers interested in the design, modification, characterization and applications of Novel Smart Materials, Surfaces and Structures. It covers the most promising areas of the smart and multifunctional materials R&D and report recent advances on creatively modified Materials. The goal of conference is to provide a global platform for researchers and engineers coming from academia and industry and different regions of the world to present their research results and activities in this emerging research field. The conference will provide opportunities for the delegates to exchange face-to-face their novel ideas and experiences with the international experts during plenary & invited talks, oral presentations and posters sessions.