Over the past decades, the use of silver nanomaterials has grown significantly, predominantly due to the favorable properties that they can impart upon new and existing products (e.g. effects may include antimicrobial, optical, electronic). However, due to the increased use, concerns have arisen over increased silver nanomaterial presence in the environment and their potential toxicological impacts. To investigate an aspect of these concerns, we have developed a study to investigate the impact of silver nanomaterial shape on the growth of the agriculturally relevant plant species Lolium multiflorum (ryegrass), Lactuca sativa (lettuce), and Solanum lycopersicum (tomato) in a soil medium. Results from our growth assay will be presented which investigated the impact of silver nanomaterial exposure on the root and shoot length as a function of silver shape (quasi-spheres, cubes, and wires) and silver dosing concentration. Furthermore, Raman spectroscopy will be employed to evaluate the uptake and retention of silver nanomaterials into the plants.

Long-term toxicity and uptake of silver nanomaterials to agriculturally relevant plant species

254th National Meeting (2017)

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