1 January 2023. Volume 17. Number 1 Seyed Amir Ali Anvar 1 , *Bahareh Nowruzi 2 , Ghazal Afshari 3 1. Department of Food Hygiene, Science and Research Branch, Islamic Azad University, Tehran, Iran. 2. Department of Biotechnology, Faculty of Converging Sciences and Technologies, Islamic Azad University, Sciences and Research Branch, Tehran, Iran. 3. Department of Pharmacy, Ayatollah Amoli Branch, Islamic Azad University, Amol, Iran. * Corresponding Author: Bahareh Nowruzi, Assistant Professor. Address: Department of Biotechnology, Faculty of Converging Sciences and Technologies, Islamic Azad University, Science and Research Branch, Tehran, Iran. Phone: +98 (21) 22774639 E-mail: bahareh.nowruzi@srbiau.ac.ir Review Article A Review of the Application of Nanoparticles Biosynthesized by Microalgae and Cyanobacteria in Medical and Veterinary Sciences Green synthesis of nanoparticles is an environmentally friendly method to produce nanoparticles with unique biological, physical, and chemical properties. Today, biological synthesis methods have drawn signifcant attention because of the drawbacks of physical and chemical synthesis, such as poisonous side effects, time and power usage, and heavy price. Among different microorganisms, cyanobacteria are suitable candidates as regenerating and stabilizing agents because of their capability to collect heavy metals from the environment and produce various bioactive compounds such as colorants and enzymes. The green synthesis of nanoparticles by cyanobacteria has captivated extensive consideration as a secure, easy, stable, economical, and environmentally friendly resolution for biomedical and veterinary applications. Meanwhile, the secondary metabolites synthesized by cyanobacteria with the ability of extracellular and extracellular metals reduction and oxidation are very noteworthy and have antibacterial, antifungal, anti-algae, anticancer, and photocatalytic activities. This study considers the properties, as well as biomedical and veterinary applications of nanoparticles generated by cyanobacteria. Keywords: Biomedical and veterinary applications, Cyanobacteria, Green synthesis, Microalgae, Nanoparticles A B S T R A C T How to Site This Article Anvar, A. A., Nowruzi, B., and Afshari, G. (2023). A Review of the Application of Nanoparticles Biosynthesized by Microalgae and Cyanobacteria in Medical and Veterinary Sciences. Iranian Journal of Veterinary Medicine, 17(1): 1-18. http://dx.doi.org/10.32598/ijvm.17.1.1005309 http://dx.doi.org/10.32598/ijvm.17.1.1005309 Use your device to scan and read the article online Article info: Received: 10 Aug 2022 Accepted: 19 Oct 2022 Publish: 01 Jan 2023