Nanobiology — DU B.Sc. (Hons.) Zoology Previous Year Question Papers

Attempt four questions in all including 1. (a) Fill in the blanks : 1×5=5 (i) The intersection of nanotechnology and biology is defined as ........................ . (ii) Nobel Prize-winning scientist ........................ is known as the “Father of Indian Nanotechnology”. (iii) The prefix “nano” is derived from the Greek word nanos, which literally means ........................ . (iv) DNA molecules are considered a “natural” ........................ (u) Scientist ... synthesized colloidal "ruby" gold nanoparticles in 1857, demonstrating that nanomaterials have different optical properties. (b) Define the following (any six) : 1x6=6 (iii) Active targeting (u) Metal nanoparticles (vi) Point of care diagnostics (c) Differentiate between : 2x2=4 (i) Bulk material and Nano materials (i) Drug delivery and Gene delivery. (a) Explain the different types of materials to synthesize the nanoparticles. How one can control the size, shape and surface properties with examples ? 10 (b) Write applications of nanoscale assembly. 5 3. (a) Why nanomedicines are transformative ? Write the applications of nanomedicines. Write the different types of materials used in nanomedicines. 9 (b) What is drug encapsulation ? Explain the different techniques of drug encapsulations. 6 4. (a) What is Advanced (Novel) Drug Delivery Systems (NDDS) ? Define the types of NDDS and write characteristics. 9 (b) Explain gene delivery and write different types of methods with its applications. 6 5. Explain the effect of nanomaterials on human health. Write the factors affecting nanotoxicity and mechanism of toxicity. 15 6. Write short notes (any three) : 5×3=15 (b) Biogenic Synthesis (c) Applications of Microorganism-Based Nanoscale Assembly (d) The Enhanced Permeability and Retention (EPR) effect (e) Nanoparticles release of nutrients and pesticides.