Ecotoxicity study of titania (TiO2) NPs on two microalgae species: Scenedesmus sp. and Chlorella sp.

Behavior and chronic toxicity of two differently stabilized silver nanoparticles to Daphnia magna

“…Attachment of nanoparticles to algae has been shown for several NPs (Bouldin et al, 2008;Röhder et al, 2014;Sadiq et al, 2011;Van Hoecke et al, 2008), but only one study has investigated whether surface charge affected attachment to algae (Ma and Lin, 2013).…”

Silver nanoparticle toxicity effect on growth and cellular viability of the aquatic plant Lemna gibba

“…Similar agglomeration was previously reported in toxicological studies for others nanoparticles in aqueous solution. For example, it was reported that the agglomerated form of SiO 2 and TiO 2 nanoparticles was able to interact directly with the algal cells surface through adsorption to the cell walls [10,11]. It was also noticed that the agglomeration of nanoparticles could alter the acquisition of essential nutrients by clogging the cell wall, causing the inhibition of algal cell growth [12,13].…”

Application of Biosynthesized Silver Nanoparticles Against a Cancer Promoter Cyanobacterium, Microcystis aeruginosa

“…Large aggregates were observed in the algal cultures under the stress of 10 mgL -1 after administration of all biosynthesized silver NPs. In this respect, it was reported that metal nanoparticles like TiO 2 NPs were adsorption to the cell walls (Sadiq et al, 2011). The pores across the cell wall have diameters ranging from 5 to20 nm that determines its sieving properties, the biosynthesized silver NPs have diameters within the mentioned range.…”