from nanomaterials to advanced materials: a health and ... · 3/4/2020 · 3d printing zink gas...
TRANSCRIPT
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Centers for Disease Control and Prevention
From Nanomaterials to Advanced Materials:A Health and Safety Perspective
Charles Geraci, PhD, CIH, FAIHA
Associate Director, Emerging Technologies
National Institute for Occupational Safety and Health
NAMSS Webinar
March 4, 2020
The findings and conclusions in this presentation have not been formally disseminated by the National Institute for Occupational Safety and Health and should not be construed to represent any agency determination or policy.
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Why Advanced Materials?
▪ Why is NIOSH interested?
▪ What brought us to this point?
▪ Do we have any current activities?
▪ Where do we see things going?
▪ What role can SOT play?
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The way we work, how we operate the workplace, and the makeup of the workforce, and are all changing…..… and fast!
These changes will impact Occupational Safety and Health and Challenge the Risk Community!
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Emerging/Innovative Technologies
• Advanced Materials• Advanced Manufacturing• Biomanufacturing• Industrial Internet of Things• Smart Sensors• AI/AR/VR• Wearable Technology• Digital Supply Chain• Robotics• Big Data Analytics• Human-Machine Interface• Work organization• Worker demographicsWhat is the impact on OS&H?
What is different this time?
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Drawn from “Top Technologies” lists
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Influence of Advanced Materials
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‘Advanced Materials’ and Manufacturing
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The Big Shift: “Nano to Advanced”
• Nano manufacturing: focus on commercialization (not new)
• Nano is mainstream and not always a separate theme
• “Advanced Materials” quickly displacing “Nanomaterial”
• Advanced Manufacturing seen as direct outlet for Nano
• Growth of Advanced Manufacturing
• Nanotech, Biotech, Emerging Tech, Manufacturing Tech
CLGeraci-11/17
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Material, Process, and Product Life Cycle
Economic
Activity
‘Material Science’
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“Because material properties drive performance, the definition of advanced materials depends on the intended application for the materials. “
Develop World-Leading Materials and Processing Technologies
U. S. Interest
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Global Interest
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Advanced (Nano) Materials refers to all new materials and modifications to existing materials that are specifically engineered (in the 1 to 100 nm scale) to have novel or enhanced properties that result in superior performance, relative to conventional materials (their bulk counterparts), that are critical for the application under consideration (that allow for novel applications).
Advanced (Nano) Material
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Particle Size
“Hazard”
10 nm 50 nm 100 nm 500 nm 1,000 nm 5 um 10 um
Nanomaterial
Advanced Material Extend our NanoTox Experience
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Advanced Materials• Materials designed for a specific function or application
• More active and efficient with new or improved properties
• Examples– Functional textiles, advanced composites
– Biomaterials
– Next Gen metal catalysts
– 2D: Graphene, Nanoclays, ceramics
Does more ‘active’ = higher hazard?
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From ‘Nano to Advanced’
“We often use nanomaterials, but we are by no means a nanomaterials company. We are an advanced materials company focusing on electrically conductive materials and non-metallic heating solutions”
Joe Sprengard, CEO of Veelo Technologies(9/2019 CompositesWorld)
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The Advanced Materials and Manufacturing Landscape
BioFabrication BioPharma Manufacturing
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Products not Lab Concepts
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Advanced Manufacturing
BioFabrication BioPharma Manufacturing
Focus area
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Examples of Advanced Materials
Metal Oxide Frameworks (MOF)
Cage like structuresLarge internal and external surface areaReactiveManufactured as fine powdersFormed into solids for applications
Applications3D Printing ‘ink’Gas storageDrug deliverySensorsNutrient detection and delivery
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Examples of Advanced Materials
Metamaterials: Nanocomposite materials engineered to have properties not found in naturally occurring materials
Metals: Shape memory, super elastic alloys, strength, hardness
Ceramics: Carbides, borides, oxides, nitrides: strength, temperature, wear resistance
Composites: Metal-Metal, Metal Ceramic, Metal-Plastic
“It is all about the shape and not the elemental composition”.
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Examples of Advanced Materials
The quest for a better Li Ion battery through more efficient electrode materials
Carbon/LiFePO4 material research. “Reducing the size of the particles to create morphologies which could provide a path for better ion diffusion’
Caban-Huertas, Scientific Reports, 2016
If manufactured and processed in high volumes, would this material require special handling?
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Advanced Manufacturing
BioFabrication BioPharma ManufacturingNext focus area
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Bio-Based Manufacturing
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Guo et al, 2017
Where does Toxicology and EHS fit in this view of Biomanufacturing?
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Role of the Toxicologist?
▪ Hazard information is still needed
▪ Will a ‘familiar material in a new form’ be the norm?
▪ Ongoing challenge of determining ‘safe’
▪ Guidance for policy makers and regulators
▪ Risk, risk, and risk.
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For more information, contact CDC1-800-CDC-INFO (232-4636)TTY: 1-888-232-6348 www.cdc.gov
The findings and conclusions in this report are those of the authors and do not necessarily represent the official position of the Centers for Disease Control and Prevention.
Charles Geraci, PhD, CIHAssociate Director, Emerging TechnologiesNational Institute for Occupational Safety and [email protected]