nano products and applications · nano products and applications craig boljkovac unitar 2 march...

Nano Products and Applications

Craig Boljkovac UNITAR2 March 20102 March 2010Hiroshima, Japan

Manufactured nanomaterials: Definition

• manufactured versus unintentionally released (weldingmanufactured versus unintentionally released (welding fumes, diesel soot)

• nanosize: normally between 1 and 100 nm in at least one dimensiondimension

• new materials with new properties, old materials (carbon black)

• new chemicals (fullerenes), existing chemicals (TiO2)• problematic: nanofibers/tubes and nanoparticles (in two or

three dimensions less than 100 nm) aggregatesthree dimensions less than 100 nm), aggregates (definition/stability)

• little solubility (in solution loss of nano characteristics)

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Nanomaterials provide better functionalityNanomaterials provide better functionality

Food, Cosmetics Coatings Energy Cosmetics

Applications

Construction Nanotube IT

3© 2008 – All rights reserved to THE INNOVATION SOCIETY, St.Gallen / Christoph Meili

Materials AnalyticsMilitary Medicine

Nanotechnology in construction industryNanotechnology in construction industry

– Colour lacquers (photocatalyticallyColour lacquers (photocatalyticallyactive)

– Antimicrobial plastering (Ag)– Construction materials (CNT*-– Construction materials (CNT -

enhancement) – Anticorrosive (Poly-Siloxan Coating)

Functionalized surfaces for wood– Functionalized surfaces for wood, floor material, stone, glass, frontage, brick, roofs

– Integrierted sensors

CNT: carbon nanotubes

– Integrierted sensors– Flame protection


Nanotechnology in the automotive branchNanotechnology in the automotive branchApplication in the car industry

Stain resistant textilesAnti-reflection window coatings

Self cleaning tyresLaques anti-rayures

Scratch-resistant lacquers

q y

Carbon black tyres CNT in composite materials


Bild: www.mercedes-benz.de

Industrial production / hospitalsIndustrial production / hospitals

– Anticoating, antimicrobial (Ag) functionalised surfaces

– Antimicrobial activityAntimicrobial activity

– Improved hygiene

– Lower cleaning costsLower cleaning costs

– Insufficient stability against chemical cleaning agents

– Technical challenges for coating of large surfaces


Consumer product applications IConsumer product applications I

Products with NT

Nano-silver in textiles and toysTiO2 as UV protection in cosmetics and a o s e te t es a d toysO2 as U p otect o cos et cs a dsunscreens


Foto: HEROS Antibac

Consumer product applications IIConsumer product applications II

Products with NT

SiO as additive in scratch Silica Aerogel: highly efficient isolationSiO2 as additive in scratch resistant colours

Silica-Aerogel: highly efficient isolation

Foto: Stardust Mission NASA


Foto: Stardust Mission, NASA

Nanotechnology in consumer products (USA)Nanotechnology in consumer products (USA)(Woodrow-Wilson Database)

803 Produkte25 August 2009803 Produkte (21. August 08)

25 August 20091015 products


Source: www.nanotechproject.org

NanotextilesNanotextiles

– Surface modification of textiles (stain resistant)

Protective clothing– Protective clothing

– “Smart” textiles (wearable computing)p g)


Consumer products (major materials)

S t h j t


Source: www.nanotechproject.org

Some red flags ISome red flags I

“Magic Nano“

Bath sealent chemical

> 100 intoxications (oedema)

Product recall (Penny-Market)

Contained NO nanoparticlesnanoparticles


Some red flags IISome red flags II

Skin cream with fullerenes (C60) Skin cream with fullerenes (C60)

Cream with fullerenes (antiox.) (30 ml = 266 US$)

Fullerenes were found to be t i i fi h neurotoxic in fish

NGOs are calling for strict regulation of cosmetics


Some red flags IIISome red flags III

Nano Silver washing machine (SAMSUNG)Nano-Silver washing machine (SAMSUNG)

Antibacterial effect of silver ions in the washing machine

Silver lasts for over 3000 Silver lasts for over 3000 wash processes (10 years)

Environmental NGOs are calling for pest declaration of gsilver at the EPA


Nanoparticles: Exposure

Information on exposure for man and environment:Information on exposure for man and environment: • Which nanoparticles lead to relevant direct/indirect exposure

(production, use, life cycle)?(p , , y )

• How to measure relevant parameters (mass concentration, surface, volume, particle number)?

• How to estimate exposures?

• How to develop an easy and low-cost measurement technique including personal sampling?technique including personal sampling?

• What is an efficient measurement strategy?

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Nanoparticles: Hazard and risk

Information on hazard and risk:Information on hazard and risk:• What effects are induced by nanoparticles for example via

inhalation and dermal contact or in the environment?

• What is/are the relevant effect parameter(s) (mass, surface, volume, particle number)?

• Is the effect of nanoparticles comparable to fine dust, but different in potency?

• How to assess agglomerates and aggregates?• How to assess agglomerates and aggregates?

• What is an appropriate test and risk assessment strategy?

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Nanoparticles: Risk management

Information on risk management:Information on risk management:• Is the present framework for data generation, hazard and risk

assessment sufficient to manage nanoparticles safely? g p y

• Are the present protective measures for fine dust also effective for nanoparticles? What else is needed?

• How to develop good working practices while having insufficient information on effects (precaution)?

• What risk mitigation strategies are already applied?• What risk mitigation strategies are already applied?

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Nanoparticles: Communication

Information on communicaion:Information on communicaion:• How to involve all interested parties and stakeholders?

• How to inform the public about the technical economical and• How to inform the public about the technical, economical and social impact of nanotechnology?

• How to inform the user about the uses of nanomaterials, their ,benefits, their risks and the uncertainty of the risks?

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Regulation and Voluntary Measures

Information on regulation and voluntary measures:Information on regulation and voluntary measures: • Are nanomaterials in my country, Where, Which uses?

• How can I get this information (survey notification• How can I get this information (survey, notification requirement, nanospecific label)?

• How are developed countries adressing the problem of p g ppotential risks of nanoparticles?

• Is the present regulatory framework for chemicals sufficient?

• Is a specific regulatory framework needed for nanoparticles?

• What voluntary activities are in practice (advisory body, code of practice exposure/risk mitigation nanospecific SDS)?of practice, exposure/risk mitigation, nanospecific SDS)?

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Benefits of Nanomaterials

Information on benefits of nanomaterials:Information on benefits of nanomaterials: • Proven benefits for the man and/or environment (for example

less toxic, less waste, longer duration, energy efficient, , , g , gy ,resource/material efficient, cleaning of contaminated water, remediation efficient, environmental sensors)

P t i bilit f b d d t d t• Proven sustainability of nano based product compared to conventional products over the whole life cycle

• Competitive on the marketp

• Availability, accessibility

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Thank you!y

Chemicals and Waste Management ProgrammeU i d N i I i f T i i d R h United Nations Institute for Training and Research

(UNITAR)Palais des Nations

12-11 Geneva 10

Tel: +41 22 917 1234Fax: +41 22 917 8047

@ itEmail: [email protected]

nano products and applications · nano products and applications craig boljkovac unitar 2 march...

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