Bioavailability of zinc oxide nanoparticles by Maytilaster lineatus and Dressina polymorpha bivalves in short term

Subject Areas : New Technologies in Aquaculture Development

Received: 2020-06-04 Accepted : 2020-06-04 Published : 2019-05-22

Keywords: Zinc Oxide Nanoparticles, Dreissena polymorpha, Keywords: Biosorption, Maytilaster linearatus,

Abstract :

Abstract[1] In this study, the direct absorption of zinc oxide nanoparticles by M. linearatus and D. polymorpha was investigated over a short period of 96 hours. The number of D. polymorpha legs with a range of 2.52 ± 0.85 cm and M. linearatus with a range of 2.7 ± 0.5 cm was taken from the natural environment. The nanoparticles were spread using an ultrasonic device at 400 rpm. In order to phase together water reservoirs with nanoparticle solution by homogenizer device with 14000 rpm was used and Treatments were prepared at concentrations of 0.25, 25 and 50 ppm. The accumulation of nanoparticles in bivalve tissue mass with an ICP device and the distribution of nanoparticles in bivalve reservoirs were measured by DLS test. The results of ICP indicated that the highest accumulation of nanoparticles in the tissue mass of the bivalve was at the lowest concentration of exposure (P<0.05) and the lowest amount of adsorption at the highest concentration of exposure was significant (P<0.05) ratio Other treatments were observed and Also, D. polymorpha showed a higher absorption capacity during the exposure period than M. linearatus. The results of the DLS test showed that the particles were in the size range of 10-100 nm, indicating that the nanoparticles were non-trapped and homogeneous in The tanks contain ducts. Both bivalve species are suggested as very good indicators for monitoring the effects of zinc oxide nanoparticles in the aquatic ecosystem * Corresponding author; [e-mail]