1. Efficient Nanocarriers for Drug-Delivery Systems: Types and Fabrication2. Nanohybrid Filler-Based Drug-Delivery System3. Hydrogel Nanocomposite Systems: Characterization and Application for Drug-Delivery Systems4. Nanopharmaceuticals as Drug-Delivery Systems: For, Against, and Current Applications5. Nucleic Acid-Based Nanocarriers6. Protein Nanocarriers for Targeted Drug Delivery for Cancer Therapy7. TiO2-Based Nanocarriers for Drug Delivery8. Lipid-Based Nanoparticles for Drug-Delivery Systems9. Mesoporous Silica-Based Nano Drug-Delivery System Synthesis, Characterization, and Applications10. Hydrogel Nanocomposite Systems: Characterization and Application in Drug-Delivery Systems11. Mesoporous Silica as Carrier for Drug-Delivery Systems12. Cell-Line-Based Studies of Nanotechnology Drug-Delivery Systems: A Brief Review13. Nanoscale Drug-Delivery Systems: In Vitro and In Vivo Characterization14. Self-Nanoemulsifying Drug-Delivery System and Solidified Self-Nanoemulsifying Drug-Delivery System15. Carbon and Carbon Nanotube Drug Delivery and Its Characterization, Properties, and Applications16. Carbon Nanotubes: Synthesis, Characterization, and Applications in Drug-Delivery Systems17. Polymer-Based Nanomaterials for Drug-Delivery Carriers 18. Polymer-Based Nanomaterials for Drug-Delivery Carriers