“…Following a detailed review of the literature, 13 studies were identified relating to the toxicity testing of graphene materials using fish (Table 3). The materials tested included large sized (15 μm) graphene platelets (Al-Rudainy, 2019), both large (~500 nm) and small sized (~30 nm) FLG sheets (Lu et al, 2015), single layer GO (Souza et al, 2017(Souza et al, , 2019Jia et al, 2019;Sun et al, 2019;Martínez-Álvarez et al, 2021;Chen et al, 2016;Qiang et al, 2016), bi-layer rGO (Audira et al, 2021), as well as quantum dots (5-15 nm) modified through reduction, hydroxylation and amination (r-GQDs, OH-GQDs, NH 2 -GQD) (Hu et al, 2019). In 9 out of the 11 studies the fish species used was the zebrafish Danio rerio (2-8 months), while both a juvenile and adult common carp Cyprinus carpio were also used by Qiang et al (2016) and Al-Rudainy (2019), respectively.…”