Aarhus University Seal / Aarhus Universitets segl

Yuya Hayashi

Earthworm nano‐ecotoxicology: Towards an integrated approach in toxicity testing of metal nanoparticles

Research output: Contribution to conferencePosterResearch

Standard

Earthworm nano‐ecotoxicology: Towards an integrated approach in toxicity testing of metal nanoparticles. / Hayashi, Yuya; Pedersen, Henrik; Wang, Jing; Scott-Fordsmand, Janeck James; Sutherland, Duncan; Heckmann, Lars-Henrik.

2010. Poster session presented at SETAC Europe 20th Annual Meeting: Science and Technology for Environmental Protection, Seville, Spain.

Research output: Contribution to conferencePosterResearch

Harvard

Hayashi, Y, Pedersen, H, Wang, J, Scott-Fordsmand, JJ, Sutherland, D & Heckmann, L-H 2010, 'Earthworm nano‐ecotoxicology: Towards an integrated approach in toxicity testing of metal nanoparticles', SETAC Europe 20th Annual Meeting: Science and Technology for Environmental Protection, Seville, Spain, 23/05/2010 - 27/05/2010.

APA

Hayashi, Y., Pedersen, H., Wang, J., Scott-Fordsmand, J. J., Sutherland, D., & Heckmann, L-H. (2010). Earthworm nano‐ecotoxicology: Towards an integrated approach in toxicity testing of metal nanoparticles. Poster session presented at SETAC Europe 20th Annual Meeting: Science and Technology for Environmental Protection, Seville, Spain.

CBE

Hayashi Y, Pedersen H, Wang J, Scott-Fordsmand JJ, Sutherland D, Heckmann L-H. 2010. Earthworm nano‐ecotoxicology: Towards an integrated approach in toxicity testing of metal nanoparticles. Poster session presented at SETAC Europe 20th Annual Meeting: Science and Technology for Environmental Protection, Seville, Spain.

MLA

Hayashi, Yuya et al. Earthworm nano‐ecotoxicology: Towards an integrated approach in toxicity testing of metal nanoparticles. SETAC Europe 20th Annual Meeting: Science and Technology for Environmental Protection, 23 May 2010, Seville, Spain, Poster, 2010.

Vancouver

Hayashi Y, Pedersen H, Wang J, Scott-Fordsmand JJ, Sutherland D, Heckmann L-H. Earthworm nano‐ecotoxicology: Towards an integrated approach in toxicity testing of metal nanoparticles. 2010. Poster session presented at SETAC Europe 20th Annual Meeting: Science and Technology for Environmental Protection, Seville, Spain.

Author

Hayashi, Yuya ; Pedersen, Henrik ; Wang, Jing ; Scott-Fordsmand, Janeck James ; Sutherland, Duncan ; Heckmann, Lars-Henrik. / Earthworm nano‐ecotoxicology: Towards an integrated approach in toxicity testing of metal nanoparticles. Poster session presented at SETAC Europe 20th Annual Meeting: Science and Technology for Environmental Protection, Seville, Spain.

Bibtex

@conference{998853906afe11df8c1a000ea68e967b,
title = "Earthworm nano‐ecotoxicology: Towards an integrated approach in toxicity testing of metal nanoparticles",
abstract = "Manufactured nanoparticles (NPs) belong to an emerging class of potential environmental pollutants. Of particular interest are the characteristics of NP toxicity under different exposure conditions e.g. cell culture, aquatic or soil media. NPs are thought to behave differently depending on the media making it challenging to establish links between cause and effect. For example, natural organic matter such as humic acid is known to interact with inorganic NPs changing the surface properties and thus their colloidal stability, which cannot be seen in deionised water media. Earthworms are versatile indicator organisms that can be tested in a wide range of different exposure media providing the possibility for a mechanistic insight into exposure testing of NPs. Here we report characterisation of Ag-NPs and their toxicity to the earthworm Eisenia fetida based on soil and aquatic exposures as well as direct injection. The details of challenges regarding the methodology, including stabilisation of Ag-NPs in physiological salt solutions, are discussed. Common problems in discriminating release of free ion Ag+ from Ag-NP in environmental media and in vivo are also addressed.",
keywords = "Silver nanoparticle, Body burden, Surface modification, Injection",
author = "Yuya Hayashi and Henrik Pedersen and Jing Wang and Scott-Fordsmand, {Janeck James} and Duncan Sutherland and Lars-Henrik Heckmann",
year = "2010",
language = "English",
note = "null ; Conference date: 23-05-2010 Through 27-05-2010",

}

RIS

TY - CONF

T1 - Earthworm nano‐ecotoxicology: Towards an integrated approach in toxicity testing of metal nanoparticles

AU - Hayashi, Yuya

AU - Pedersen, Henrik

AU - Wang, Jing

AU - Scott-Fordsmand, Janeck James

AU - Sutherland, Duncan

AU - Heckmann, Lars-Henrik

PY - 2010

Y1 - 2010

N2 - Manufactured nanoparticles (NPs) belong to an emerging class of potential environmental pollutants. Of particular interest are the characteristics of NP toxicity under different exposure conditions e.g. cell culture, aquatic or soil media. NPs are thought to behave differently depending on the media making it challenging to establish links between cause and effect. For example, natural organic matter such as humic acid is known to interact with inorganic NPs changing the surface properties and thus their colloidal stability, which cannot be seen in deionised water media. Earthworms are versatile indicator organisms that can be tested in a wide range of different exposure media providing the possibility for a mechanistic insight into exposure testing of NPs. Here we report characterisation of Ag-NPs and their toxicity to the earthworm Eisenia fetida based on soil and aquatic exposures as well as direct injection. The details of challenges regarding the methodology, including stabilisation of Ag-NPs in physiological salt solutions, are discussed. Common problems in discriminating release of free ion Ag+ from Ag-NP in environmental media and in vivo are also addressed.

AB - Manufactured nanoparticles (NPs) belong to an emerging class of potential environmental pollutants. Of particular interest are the characteristics of NP toxicity under different exposure conditions e.g. cell culture, aquatic or soil media. NPs are thought to behave differently depending on the media making it challenging to establish links between cause and effect. For example, natural organic matter such as humic acid is known to interact with inorganic NPs changing the surface properties and thus their colloidal stability, which cannot be seen in deionised water media. Earthworms are versatile indicator organisms that can be tested in a wide range of different exposure media providing the possibility for a mechanistic insight into exposure testing of NPs. Here we report characterisation of Ag-NPs and their toxicity to the earthworm Eisenia fetida based on soil and aquatic exposures as well as direct injection. The details of challenges regarding the methodology, including stabilisation of Ag-NPs in physiological salt solutions, are discussed. Common problems in discriminating release of free ion Ag+ from Ag-NP in environmental media and in vivo are also addressed.

KW - Silver nanoparticle

KW - Body burden

KW - Surface modification

KW - Injection

M3 - Poster

Y2 - 23 May 2010 through 27 May 2010

ER -