|About this Abstract
||MS&T23: Materials Science & Technology
||Advanced Materials for Harsh Environments
||J-4: Metal-coated Halloysite Nanotube-Based Antimicrobial Filtration System for Space Mission Applications
||David Mills, Mohammed J. P. Bappy
|On-Site Speaker (Planned)
||Mohammed J. P. Bappy
A human-crewed space mission requires viral protection, reduces or eliminates bacterial adhesion, and prevents bacterial growth. Furthermore, removing particulate materials, mainly silicon, titanium dioxide, and other harmful materials, is critical. Metallic nanomaterials can address the challenges of planetary dust and dangerous particulate materials. A metalized nano-fiber-based and 3D-printed air filtration unit has been developed to protect against pathogens and particulate material entry. Zinc oxide nanoparticles were electrodeposited on halloysite nanotubes (ZnO/HNTs). ZnO/HNTs were used in a 3D printer filament for printing the filter housing and blow-spun ZnHNT embedded fibers for the filter membrane. The porosity of our membrane is 50 nanometers and prevents the entry of pathogens. The embedded ZnO ions kill bacteria and provide viral containment. Antimicrobial studies showed significant bacterial growth inhibition and viral inactivation. This technology may prevent pathogen entry into crewed spacecraft and habitats and prevent the entry of Martian microbes and particulates.