The Fifth International Conference on Materials and Environmental Science (ICMES20221), is an interdisciplinary platform to promote a multi-sectoral and collaborative approach in the field of development of new and innovative approaches in materials, their applications in energy and renewable energy, environmental science, sustainable development, health, biotechnology and electrical engineering. The scientific committee of ICMES2022 agreed that the health session was the priority since the Covid19 pandemic still constitutes a Public Health Emergency of International Concern. There are many multifunctional materials available by the advent of nanotechnology, ranging from carbon nanotubes, graphene, inorganic nanoparticles, conducting polymers, 2D materials, CO2 material capture, etc… Materials science Conference is an event that brings together leading researchers spanning the field of materials science and engineering to present and discuss cutting edge research with other experts in the field: exchanging ideas to advance current understanding towards the future of materials science.