<p>Part 1: BASICS and FUNDAMENTALS<br>1. A preface to the chitosan-biopolymer, its origin, and properties<br>2. Chitin and chitosan manufacturing and processing techniques<br>3. Chitosan-based nanomaterials, multiple forms, and characterization<br>4. Degradability of chitosan nanostructures in the natural environment<br>5. Functional properties of chitosan-based nanomaterial<br><br>Part 2: Emerging applications OF CHITOSAN-BASED NANOMATERIALS<br>6. Chitosan-based nanomaterials in decontamination of industrial products<br>7. Chitosan-based nanomaterials in decontamination of pharmaceutical products 8. Chitosan-based nanomaterials in decontamination of heavy metals<br>9. Chitosan-based nanomaterials in decontamination of inorganic species<br>10. Chitosan-based nanomaterials in decontamination of organic dyes<br>11. Chitosan-based nanomaterials in decontamination of pesticides<br>12. Chitosan-based nanomaterials in decontamination of hydrocarbons<br>13. Chitosan-based nanomaterials in decontamination of phenols and biphenyls<br>14. Chitosan-based nanomaterials in decontamination of detergents<br>15. Chitosan-based nanomaterials in decontamination of plasticizers<br><br>Part 3: CURRENT CHALLENGES AND FUTURE SCOPE<br>16. Safety, regulations, and economic impact of chitosan nanostructures<br>17. Eco- and toxicological impact of chitosan nanostructures<br>18. Current status of chitosan nanostructures in the field of environmental remediation<br>19. Challenges and Future prospects of chitosan nanostructures in environmental remediation</p>