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The ecotoxicological and environmental behaviour and transformations of silver nanoparticles

Romer Roche, Isabella (2013)
Ph.D. thesis, University of Birmingham.

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Abstract

Silver nanoparticles (AgNPs) are currently widely used and of special interest due to their anti-microbial properties. They have been used extensively in commercial applications and might be the most worrying of the manufactured nanoparticles because of their inherent toxicity. In this work, stable citrate and PEG stabilized AgNPs of three different core size (7, 10 and 20nm) were synthesized, the stability of citrate capped NPs was assessed in ecotoxicology media (used for OECD for Daphnia magna toxicity testing) and the stability of 20nm NPs in environmentally relevant conditions (like presence of humic substances, sunlight, different types of synthetic water, amongst other). The particles were fully characterized before and during the stability tests with a multimethod approach. The methods used were DLS, UV-vis, TEM, AFM, FI-FFF, HR-STEM, EELS, EDX. Not all methods were used for all the samples.

Type of Work:Ph.D. thesis.
Supervisor(s):Lead, Jamie R. and Viant, Mark
School/Faculty:Colleges (2008 onwards) > College of Life & Environmental Sciences
Department:School of Geography, Earth and Environmental Sciences
Subjects:GB Physical geography
GE Environmental Sciences
Institution:University of Birmingham
ID Code:4021
This unpublished thesis/dissertation is copyright of the author and/or third parties. The intellectual property rights of the author or third parties in respect of this work are as defined by The Copyright Designs and Patents Act 1988 or as modified by any successor legislation. Any use made of information contained in this thesis/dissertation must be in accordance with that legislation and must be properly acknowledged. Further distribution or reproduction in any format is prohibited without the permission of the copyright holder.
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