What question did this study set out to answer?

The aim is to evaluate how new binder materials with platinum nanoparticles improve infection control in ICUs.

April 10, 2026Open Access

Revolutionizing infection control in ICUs: photocatalytic binder materials with platinum nanoparticles

Key Points

The aim is to evaluate how new binder materials with platinum nanoparticles improve infection control in ICUs.
Development of spray-applied binder materials that uniformly distribute platinum nanoparticles.
Third-party evaluations conducted under ISO standards to assess viral reduction efficacy.
Testing against Influenza A, Feline Calicivirus, and SARS-CoV-2.
Achieved a 99.97% reduction of Influenza A in 15 seconds.
Demonstrated 99.9% reduction for Feline Calicivirus in the same time frame.
Confirmed a 99.94% reduction for SARS-CoV-2 in 2021.

Abstract

We present maintenance-free, spray-applied binder materials that photocatalytically form and permanently adhere uniformly distributed platinum nanoparticles on solid and textile surfaces, enabling instantaneous viral inactivation. Authorized third-party evaluations (Japan Textile Products Quality and Technology Center, September 2021 and April 2024) under ISO 18184: 2019 demonstrated 99. 97% (1–10^-3. 6) reduction for Influenza A and 99. 9% (1–10^-3. 0) for Feline Calicivirus in 15 s; 99. 94% (1–10^-3. 2) against SARS-CoV-2 was confirmed in 2021. The binder ensures even nanoparticle formation without agglomerates and durable adhesion, outperforming materials requiring frequent replacement. This approach targets contact surfaces, droplets, and aerosols, complementing but surpassing HEPA filters that lack instant inactivation and impose maintenance burdens. The technology promises improved infection control for ICUs and hospitals, with added benefits in sustainability, cost reduction, and straightforward deployment.

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