On May 9th and 10th, 2025, the CosmoCaixa Barcelona hosted the tenth edition of the 10ALAMENOS9 Festival, the leading event in Ibero-America for the dissemination of nanoscience and nanotechnology. Born as an initiative launched by the Spanish Foundation for Science and Technology (FECYT) in 2016, the festival has evolved and grown, attracting more than 250,000 people since its inception and establishing itself as a key space for scientific outreach.

The festival brings together over 60 research centres from 16 countries and has the continued support of BASF, building a network that brings nanoscience to society in an innovative and accessible way.

More than just a science fair, 10ALAMENOS9 offers an immersive experience designed for all audiences. Its proposal focuses on providing a holistic experience where scientific rigour merges with surprising formats: interactive workshops, artistic performances, nanocomics, and augmented reality tools. As Jordi Díaz-Marcos, coordinator of the festival (UB, CCiTUB/IN2UB), explains: “We want the audience to marvel and understand that nanoscience is not science fiction, but a reality that is already transforming our lives.”

In this edition, several researchers from the Energy Storage, Harvesting, and Catalysis Department at IREC participated by offering interactive workshops for all audiences:

• Maximiliano Adrian Merlo and Maria Castellví Barnés presented the workshop titled “Nano batteries? For now, lemon batteries!” where attendees were able to discover how electrical batteries work using everyday materials like lemons, vinegar, screws, and coins.
• Amin Lwazzani, Rolando García and Karen Quintana Torres introduced younger audiences to sustainable fuels, such as hydrogen and biogas, with the interactive workshop “Nanomaterials for the fuels of the future.”