Chapter title |
Transmucosal Nanoparticles: Toxicological Overview
|
---|---|
Chapter number | 3 |
Book title |
Cellular and Molecular Toxicology of Nanoparticles
|
Published in |
Advances in experimental medicine and biology, January 2018
|
DOI | 10.1007/978-3-319-72041-8_3 |
Pubmed ID | |
Book ISBNs |
978-3-31-972040-1, 978-3-31-972041-8
|
Authors |
Swapnil Talkar, Sagar Dhoble, Anuradha Majumdar, Vandana Patravale |
Abstract |
Nanoparticles have specific physicochemical properties different to bulk materials of the same composition and such properties make them very attractive for commercial and medical applications. Mucoadhesive nanoparticulate dosage forms are designed to enable prolonged retention of these nanoparticles at the site of application, providing a controlled drug release for improved therapeutic outcome. Moreover, drug delivery across the mucosa bypasses the first-pass hepatic metabolism and avoids the degradation by gastrointestinal enzymes. However, like most new technologies, there is a rising debate concerning the possible transmucosal side effects resulting from the use of particles at the nano level. In fact, these nanoparticles on entering the body, deposit in several organs and may cause adverse biological reactions by modifying the physiochemical properties of living matter. Several investigators have found nanoparticles responsible for toxicity in different organs. In addition, the toxicity of nanoparticles also depends on whether they are persistent or cleared from the different organs of entry and whether the host can raise an effective response to sequester or dispose of the particles. In contrast to many efforts aimed at exploiting desirable properties of nanoparticles for medicine, there are limited attempts to evaluate potentially undesirable effects of these particles when administered intentionally for medical purposes. This chapter focuses on the overview of the mucosal systems, fate of nanoparticles, mechanism of nanoparticle's toxicity and the various toxicity issues associated with nanoparticles through mucosal routes. |
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