1. [Misinformation](#): The spread of false or exaggerated claims about nanotechnology's risks and benefits. 2. [Ethical Concerns](#): Issues like [intellectual property](#) disputes, or the use of nanotechnology in controversial applications. 3. [Environmental Impact](#): Potential harm to ecosystems due to the release of [nanoparticles](#) into the environment. 4. [Health and Safety](#): Uncertainties or adverse effects related to human health from exposure to [nanomaterials](#).