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Meeting MS&T23: Materials Science & Technology
Symposium Advanced Materials for Harsh Environments
Presentation Title J-4: Metal-coated Halloysite Nanotube-Based Antimicrobial Filtration System for Space Mission Applications
Author(s) David Mills, Mohammed J. P. Bappy
On-Site Speaker (Planned) Mohammed J. P. Bappy
Abstract Scope 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.


Behavior of Select Refractories in Plastics Gasification Environments
Blue Phase Liquid Crystal Templated Nucleation and Growth of Inorganic Materials
Castable Eutectic Ni-Ce Superalloys Strengthened by a γ/γʹ Microstructure
Ceramic Far-Field Passive Wireless Sensors for High Temperature Measurement
Coarsening and Globularization in Eutectic Ni-Ce Alloys
Cold-rolled 3D Graphene Sheets as a Protective Material in the Fluorocarbon Plasma Environment
Corrosion Phenomena in Additively Manufactured Aluminum Alloys Containing Quasicrystalline Dispersoids
Crack Tip pH Measurements in Al-Cu-Mg and Al-Zn-Mg Alloys to Understand Differences In Corrosion Fatigue Behavior
Doped Lanthanum Chromite-refractory Based Composites Sensors for High Temperature Monitoring in Harsh Environments Systems
Effect of Heat Treatment on Grain Boundary Characteristics and Intergranular Creep Resistance of IN740H and It's Variant
Effect of Laser Surface Treatment on the Corrosion and Fatigue Performance of AA5456-H116 Alloys
J-3: Material Properties of High-strength High Chromium TWIP Steels with Increased Corrosion Resistance
J-4: Metal-coated Halloysite Nanotube-Based Antimicrobial Filtration System for Space Mission Applications
Microstructure and Mechanical Properties of Molded Martian and Lunar Regolith Compressed Pellet Samples
Performance of High Z and High-density Multifunctional Materials in Harsh Environments
Smart Phase Transforming Metal Ceramic Multilayers
Understanding SCC Resistance and Failure in AF96 Welded Joints
Virtual Characterization Tools for Understanding Material Response in Harsh Conditions

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