Metalchemy, a UK-based nanotech startup, won the PITCH competition at Web Summit Qatar 2025 with its innovative antibacterial silver nanoparticle solution that extends food shelf life, addressing the food waste crisis. The company, led by CEO Federico Trotta, plans to expand into healthcare applications while gaining recognition and investment opportunities from the event. With a focus on sustainable food preservation and future growth, Metalchemy is poised to make a significant impact across industries.