Abstract
Cadmium selenide nanoparticles (CdSe NPs) were synthesized by an easy and simple method and their properties were assessed by XRD, TEM and SEM techniques. The effects of CdSe NPs as well as Cd2+ ions on Lemna minor plants were investigated. The absorption of CdSe NPs by the plants had some adverse consequences that were assessed by a range of biological analyses. The results revealed that both CdSe NPs and the ionic form of cadmium noticeably caused toxicity in L. minor. Morphological parameters as well as peroxidase (POD) activity were deteriorated. In contrast, the activities of some other antioxidant enzymes (superoxide dismutase (SOD) and catalase (CAT)) as well as the contents of total phenol and flavonoids went up. Taken all together, it could be implied that CdSe NPs as well as Cd2+ were highly toxic to plants and stimulated the plant defense system in order to scavenge produced reactive oxygen species (ROS).
Highlights
Nanomaterials with at least one dimension of less than 100 nm are basically known as nanoparticles (NPs)
Considerable consumption of nanoparticles in various industries such as electronics, agriculture, medicine, and pharmacy let out abundant wastes, which find their way to ecosystems, including aquatic ones, and harm living organisms in water such as aquatic plants
The XRD pattern confirmed the successful administration of the hydrothermal method in this work
Summary
Nanomaterials with at least one dimension of less than 100 nm are basically known as nanoparticles (NPs). As nanomaterials show different properties compared to the bulk materials, potential risks made by their nanometer scale should be taken into consideration. Their availability to living organisms is higher due to the smaller size [1]. Nanoparticles exist in the environment, from the natural sources like volcanic activities, wild bushfire, and/or originating from human activities, like smoking, industrial emissions, and technological consumptions [2]. Considerable consumption of nanoparticles in various industries such as electronics, agriculture, medicine, and pharmacy let out abundant wastes, which find their way to ecosystems, including aquatic ones, and harm living organisms in water such as aquatic plants.
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