WHO has undertaken several initiatives to address these challenges: - International Guidelines: WHO develops and promotes international guidelines for the safe use of nanomaterials in healthcare. - Research Funding: WHO funds research projects that investigate the safety, efficacy, and ethical implications of nanotechnology. - Capacity Building: WHO works to build capacity in low- and middle-income countries to ensure they can benefit from and regulate nanotechnology. - Public Engagement: WHO engages with the public to raise awareness about the benefits and risks of nanotechnology.