With reference to the use of nano-technology in health sector, which of the following statements is/are correct? 1. Targeted drug delivery is made possible by nanotechnology. 2. Nanotechnology can largely contribute to gene therapy. Select the correct answer using the code given below.

1. Nanotechnology involves manipulating matter on an atomic and molecular scale. In the health sector, nanoparticles can be engineered to encapsulate drugs and deliver them specifically to targeted cells or tissues (e.g., cancer cells), minimizing side effects on healthy tissues. This is known as targeted drug delivery. Hence, statement 1 is correct. 2. Gene therapy involves introducing genetic material into cells to correct genetic disorders. Nanotechnology provides novel tools, such as nano-vectors or nanoparticles, for efficiently and safely delivering genes or gene-editing tools (like CRISPR-Cas9) into target cells, overcoming biological barriers. Thus, nanotechnology can largely contribute to gene therapy. Hence, statement 2 is correct. 3. Therefore, both statements 1 and 2 are correct.