Aquatic Toxicology paper for Xiaolin Chen Dr. Xiaolin Chen has a first paper on her PhD research in plant toxicology accepted for publication in the journal â€œAquatic Toxicologyâ€. The title of Xiaolinâ€™s paper is â€œThe toxicity of Zinc-Oxide nanoparticles to
Lemna minor (L.) is predominantly caused by dissolved Zincâ€.
Xiaolinâ€™s PhD study, in the plant stress group of Professor Marcel Jansen, investigated the role that dissolved zinc plays in causing Zinc-oxide nanoparticles (nano-ZnO) toxicity to the aquatic plant
Lemna minor. Nano-ZnO dissolution was modulated by modifying the pH of the growth medium and/or the surface coating of nano-ZnO. It was concluded that dissolved zinc is primarily responsible for nano-ZnO toxicity, as phytotoxicity was either absent or reduced when dissolution of the nanoparticles was slowed down. One of the implications of this study is that the fate and toxicity of nano-ZnO released in the environment depends strongly on the pH of the water. Xiaolin's PhD project was jointly supervised by Prof. Marcel Jansen and Prof. John Oâ€™Halloran, and funded by the Chinese Scholarship Council. Xiaolin Chen graduated in the school of BEES, UCC, in 2015.