Potentiating toxicological interaction of single-walled carbon nanotubes with metals - Mark Hartl

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Centre for Marine Biodiversity and Biotechnology Away Day 2012. Presentation by Mark Hartl on ecotoxicological research into carbon nanotubes in the marine environment

Technology Education

Potentiating toxicological interaction of single-walled carbon
nanotubes with metals

Mark G J Hartl - Marine Ecotoxicology, CMBB, School of Life Sciences, Heriot-Watt University
http://markhartl.sls.hw.ac.uk

• Nanomaterials: <100nm in at least 1 dimension
• quantum mechanical effects often dominate
• surface area per unit volume increases
• materials that exhibit unique optical, mechanical, magnet conductive and sorption properties
•Nanotubes:

• will enter the environment at some stage
Questions:
• How do they behave in the environment
• How do they interact with marine organisms
• How to they interact with other contaminants

Mark G J Hartl - Marine Ecotoxicology, CMBB, School of Life Sciences, Heriot-Watt University
http://markhartl.sls.hw.ac.uk

Mark G J Hartl - Marine Ecotoxicology, CMBB, School of Life Sciences, Heriot-Watt University
http://markhartl.sls.hw.ac.uk

Sediments

Mark G J Hartl - Marine Ecotoxicology, CMBB, School of Life Sciences, Heriot-Watt University
5 http://markhartl.sls.hw.ac.uk

Active filter-feeders

Owen et al (1974)

Mark G J Hartl - Marine Ecotoxicology, CMBB, School of Life Sciences, Heriot-Watt University
http://markhartl.sls.hw.ac.uk

Particle sorting

Mark G J Hartl - Marine Ecotoxicology, CMBB, School of Life Sciences, Heriot-Watt University
http://markhartl.sls.hw.ac.uk

http://icbf2014.sls.hw.ac.uk
Mark G J Hartl - Marine Ecotoxicology, CMBB, School of Life Sciences, Heriot-Watt University
http://markhartl.sls.hw.ac.uk

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Potentiating toxicological interaction of single-walled carbon nanotubes with metals - Mark Hartl

1. Potentiating toxicological interaction of single-walled carbon nanotubes with metals Mark G J Hartl - Marine Ecotoxicology, CMBB, School of Life Sciences, Heriot-Watt University http://markhartl.sls.hw.ac.uk

2. • Nanomaterials: <100nm in at least 1 dimension • quantum mechanical effects often dominate • surface area per unit volume increases • materials that exhibit unique optical, mechanical, magnet conductive and sorption properties •Nanotubes: • will enter the environment at some stage Questions: • How do they behave in the environment • How do they interact with marine organisms • How to they interact with other contaminants Mark G J Hartl - Marine Ecotoxicology, CMBB, School of Life Sciences, Heriot-Watt University http://markhartl.sls.hw.ac.uk

3. Mark G J Hartl - Marine Ecotoxicology, CMBB, School of Life Sciences, Heriot-Watt University http://markhartl.sls.hw.ac.uk

4. Mark G J Hartl - Marine Ecotoxicology, CMBB, School of Life Sciences, Heriot-Watt University http://markhartl.sls.hw.ac.uk

5. Sediments Mark G J Hartl - Marine Ecotoxicology, CMBB, School of Life Sciences, Heriot-Watt University 5 http://markhartl.sls.hw.ac.uk

6. Mark G J Hartl - Marine Ecotoxicology, CMBB, School of Life Sciences, Heriot-Watt University http://markhartl.sls.hw.ac.uk

7. Mark G J Hartl - Marine Ecotoxicology, CMBB, School of Life Sciences, Heriot-Watt University http://markhartl.sls.hw.ac.uk

8. Active filter-feeders Owen et al (1974) Mark G J Hartl - Marine Ecotoxicology, CMBB, School of Life Sciences, Heriot-Watt University http://markhartl.sls.hw.ac.uk

9. Mark G J Hartl - Marine Ecotoxicology, CMBB, School of Life Sciences, Heriot-Watt University http://markhartl.sls.hw.ac.uk

10. Particle sorting Mark G J Hartl - Marine Ecotoxicology, CMBB, School of Life Sciences, Heriot-Watt University http://markhartl.sls.hw.ac.uk

11. Particle sorting Mark G J Hartl - Marine Ecotoxicology, CMBB, School of Life Sciences, Heriot-Watt University http://markhartl.sls.hw.ac.uk

12. Particle sorting Mark G J Hartl - Marine Ecotoxicology, CMBB, School of Life Sciences, Heriot-Watt University http://markhartl.sls.hw.ac.uk

13. Particle sorting Mark G J Hartl - Marine Ecotoxicology, CMBB, School of Life Sciences, Heriot-Watt University http://markhartl.sls.hw.ac.uk

14. Mark G J Hartl - Marine Ecotoxicology, CMBB, School of Life Sciences, Heriot-Watt University http://markhartl.sls.hw.ac.uk

15. http://icbf2014.sls.hw.ac.uk Mark G J Hartl - Marine Ecotoxicology, CMBB, School of Life Sciences, Heriot-Watt University http://markhartl.sls.hw.ac.uk

Editor's Notes

Apical end of the gill lamellae – cirri are clearly visible as hair-like structures (arrow)
Particles (black) caught in gill mesh; cilliar transport towards food groves (Dots on right hand diagramme)
Transport of particles incorporated in mucus across the surface of gill mesh
Transport of food particles along a food grove.

Potentiating toxicological interaction of single-walled carbon nanotubes with metals - Mark Hartl

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Potentiating toxicological interaction of single-walled carbon nanotubes with metals - Mark Hartl

Editor's Notes