Home | My Profile | Contact Us
Research Trends Products  |   order gateway  |   author gateway  |   editor gateway  
Register | Forgot Password

Author Resources
 Author Gateway
 Article submission guidelines

Editor Resources
 Editor/Referee Gateway

 Regional Subscription Agents/Distributors
Current Topics in Toxicology   Volumes    Volume 18 
Freshwater clam as a potential bioindicator for ZnO-agar nanocomposite toxicity
Tahani Younis Omar, Elizabeth Samir Sadek, Manar Ahmed Bahaaeldine, Aya Ramadan Rashed, Abdeljalil Mohamed Al Shawoush, Ayman S. Mohamed, Dalia Y. Saad
Pages: 123 - 133
Number of pages: 11
Current Topics in Toxicology
Volume 18 

Copyright © 2022 Research Trends. All rights reserved

ZnO nanoparticles (ZnO NPs) are widely used in medicine, food preservation, and other industres. The current study aims to evaluate the toxic effect of zinc oxide-agar nanocomposites on Coelatura aegyptiaca which is considered as a sensitive bioindicator for environmental pollution. Following the synthesis and characterization of zinc oxide nanoparticles (ZnO NPs) and ZnO-agar, different doses (12.5, 25, 50 mg/L) were tested. In addition to histology investigation, oxidative stress indicators were examined after seven days. ZnO NPs and ZnO-agar nanocomposite (NC) caused a significant increase in malonaldehyde and nitric oxide concentrations, while they decreased glutathione and catalase levels. Furthermore, bivalves treated with ZnO NPs and ZnO-agar NC showed structural alterations in their gills and mantle. In general, using agar in the synthesis of ZnO NPs results in synergistic effects such as cellular and structural damage and a more prominent alteration in biochemical parameters. In addition, we found that Coelatura aegyptiaca is an effective bioindicator for nanoparticle toxicity and water pollution.
View Full Article  


Buy this article
Buy this volume
Subscribe to this title
Shopping Cart

Quick Links
Search Products
Browse in Alphabetical Order : Journals
Browse by Subject Classification : Journals

Ordering Information Ordering Information
Downloadable forms Downloadable Forms