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Current Pharmaceutical Design

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ISSN (Print): 1381-6128
ISSN (Online): 1873-4286

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Perspective

A Perspective on Therapeutic Applications and Strategies to Mitigate Toxicity of Metallic Nanoparticles

Author(s): Arjunan Karuppaiah*, Divakar Selvaraj, Mohan Sellappan, Arumugam Nagarajan, Dinesh Babu, Habibur Rahman, Thiagarajan Madheswaran, Bharadhan Bose and Tamilselvan Natrajan

Volume 29, Issue 4, 2023

Published on: 13 January, 2023

Page: [239 - 245] Pages: 7

DOI: 10.2174/1381612829666230109111635

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Abstract

Metallic nanoparticles (MNPs) have been widely used for diagnostic and therapeutic purposes in clinical practice. A number of MNP formulations are being investigated in clinical trials for various applications. This increase in the use of NPs results in higher exposure to humans, leading to toxicity issues. Hence, it is necessary to determine the possible undesirable effects of the MNPs after in-vivo application and exposure. One of the main reasons for the toxicity of MNPs is the release of their respective metallic ions throughout the body. Many research studies are in progress investigating the various strategies to reduce the toxicity of MNPs. These research studies aim to change the size, dose, agglomeration, release, and excretion rates of MNPs. In this perspective review, we discussed the possible strategies to improve the therapeutic effects of MNPs through various processes, with lessons learned from the studies involving silver nanoparticles (AgNPs). We also discussed the ways to manage the toxicity of MNPs by purification, surface functionalization, synergistic effect, and targeted therapy approach. All these strategies could reduce the dose of the MNPs without compromising their therapeutic benefits, which could decrease the toxicity of MNPs. Additionally, we briefly discussed the market and toxicology testing for FDA-regulated MNPs.

Keywords: Metallic nanoparticles, metal toxicity, drug delivery, site-specific targeting, nanotoxicology, silver nanoparticles.

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