While nanotechnology holds great promise, it also presents challenges and risks:
1. Health and Safety: The impact of nanomaterials on human health and the environment is not fully understood. There is a need for comprehensive [toxicological studies]() and regulations to ensure safe use.
2. Ethical and Social Issues: The rapid advancement of nanotechnology raises ethical questions regarding privacy, security, and the potential for misuse. Addressing these concerns requires transparent dialogue between scientists, policymakers, and the public.
3. Economic Barriers: The high cost of nanotechnology research and development can be a barrier to innovation. Ensuring that the benefits of nanotechnology are accessible to all requires strategic investments and policies that encourage cost-effective solutions.