1. Toxic Effects of Nanomaterials on Environment [Rajeev Kumar, Moondeep Chauhan, Neha Sharma, and Ganga Ram Chaudhary] 2. Nanotoxicity: Impact on Health and Environment [Ponnala Vimal Mosahari, Deepika Singh, Jon Jyoti Kalita, Pragya Sharma, Hasnahana Chetia, Debajyoti Kabiraj, Chandan Mahanta, and Utpal Bora] 3. Nanotoxicological Evaluation in Marine Water Ecosystem: A Detailed Review [Anna Giulia Cattaneo] 4. Interaction of Carbon Nanomaterials with Biological Matrices [S. Gajalakshmi, A. Mukherjee, and N. Chandrasekaran] 5. Interaction of Inorganic Nanoparticles with Biological Matrices [Priya Sharma, Vineet Kumar, and Praveen Guleria] 6. Effects of Engineered Nanoparticles on Bacteria [Changjian Xie, Xiao He, and Zhiyong Zhang] 7. Comparative Risk Assessment of Copper Nanoparticles with Their Bulk Counterpart in the Indian Major Carp Labeo rohita [Kaliappan Krishnapriya and Mathan Ramesh] 8. Toxic Effects of Nanomaterials to Plants and Beneficial Soil Bacteria [Shiwani Guleria, Praveen Guleria, and Vineet Kumar] 9. Nanotoxicity of Silver Nanoparticles: From Environmental Spill to Effects on Organisms [Kevin Osterheld, Mathieu Millour, Émilien Pelletier, Adriano Magesky, Kim Doiron, Karine Lemarchand, and Jean-Pierre Gagné] 10. Nanotoxicity on Human and Plant Pathogenic Microbes and Aquatic Organisms [Akhilesh Dubey, Vishal Mishra, Sanjeev Kumar, Shahaj Uddin Ahmed, and Mukunda Goswami] 11. Methods of In Vitro and In Vivo Nanotoxicity Evaluation in Plants [Ilika Ghosh, Manosij Ghosh, and Anita Mukherjee] 12. In Vitro and In Vivo Nanotoxicity Evaluation in Plants [Homa Mahmoodzadeh] 13. Phytochemicals and Their Functionalized Nanoparticles as Quorum Sensing Inhibitor and Chemotherapeutic Agent [Brajesh Kumar and Kumari Smita] 14. Nanotoxicological Evaluation in Freshwater Organisms [Lindsey C. Felix and Greg G. Goss] 15. Guidelines and Protocols for Nanotoxicity Evaluation [Bindu Sadanandan, Vijayalakshmi V, and Mamta Kumari] 16. Regulations for Safety Assessment of Nanomaterials [Preetika Biswas and Ashutosh Yadav]