Light-Activated Self-Disinfecting Fabric to Fight Hospital Pathogens

Researchers in the Valencian Community have developed an autodisinfecting cotton fabric that eliminates bacteria, fungi, and viruses—including adenovirus—when exposed to visible light such as ordinary LED lamps. Developed through a collaboration involving the Universitat Politècnica de València, the Instituto de Tecnología Química, the Instituto Agroforestal del Mediterráneo, and the Unidad Mixta de Investigación entre la UPV y el Instituto de Investigación Sanitaria del Hospital La Fe, the material successfully reduced microbial presence by 75 percent in real patient rooms during initial testing, media reports indicated.

Multidisciplinary Collaboration Behind the Antimicrobial Textile

The innovation stems from a joint effort uniting academic and clinical institutions across the region.

Marilés Bonet, leading the GITEX research group at the UPV Alcoy campus, explained that the primary engineering hurdle involved anchoring specific photoactive colorants permanently to the textile matrix so they would not leach out during standard hospital use. “If we want this for hospitals, we have to make sure that this dye stays fixed there and does not come out,” Bonet stated in an interview, cited by cope.es.

Laboratory Inactivation Rates Across Multiple Pathogens

Prior to clinical placement, the textile underwent rigorous pathogen exposure assays in controlled laboratory environments. The material inactivated Escherichia coli entirely within 60 minutes of illumination, while Enterococcus faecalis succumbed in just 20 minutes under identical light exposure, diariodealicante.net reported. Furthermore, trials involving the fungus Candida albicans showed significant population declines over a three-hour window.

Expanding the spectrum of targeted pathogens to include viral vectors presented a notable technical challenge. Bonet confirmed that the specific molecular anchoring protocols successfully broadened the antimicrobial activity beyond bacteria and fungi to encompass resilient viral structures. “The advantage we have is that by the mechanisms of action we have used to anchor these dyes to the fabrics, what we have done is broaden the spectrum of microorganisms, and it is no longer only against bacteria and fungi, but it also disinfects certain types of virus,” Bonet told cope.es.

Industrial scaling partnerships were established alongside textile firms including Mila Rosa, which focused on mask applications, and Pascual y Bernabéu, which managed the industrial scaling of the process, sources reported.

Clinical Validation inside Hospital La Fe Patient Rooms

To assess real-world efficacy beyond controlled laboratory settings, researchers deployed the treated cotton in twelve patient rooms at the Hospital La Fe de València. Test swatches were placed for 48 hours on bed guardrails—areas receiving direct ambient illumination—and on mattresses, which experience lower light exposure levels.

Inmaculada Andreu of the Unidad Mixta de Investigación UPV-IIS La Fe noted that fabrics exposed to room lighting accumulated 75 percent fewer microorganisms than standard cotton controls subjected to the same environmental conditions, sources reported.

Research Focuses on Production Costs and Material Durability

Mass production capabilities remain under active development following the successful extrusion of several meters of material for the Hospital La Fe trials.

While the initial twenty-wash benchmark has been met, investigators have not yet published definitive data regarding dye retention stability past twenty cycles or the exact economic cost per square meter of industrial production. Ongoing laboratory work focuses on refining chemical cross-linking techniques to achieve the desired fifty-to-one-hundred-cycle durability target necessary for widespread institutional adoption.

Disclaimer: The information provided in this article is for educational and scientific communication purposes only and does not constitute medical advice. Always consult with a qualified healthcare provider regarding any medical condition, diagnosis, or treatment plan.