Multifunctional FFP2 Face Mask for White Light Disinfection and Pathogens Detection using Hybrid Nanostructures and Optical Metasurfaces

A new generation of an FFP2 (Filtering Face Piece of type 2) smart face mask is achieved by integrating broadband hybrid nanomaterials and a self‐assembled optical metasurface. The multifunctional FFP2 face mask shows simultaneously white light‐assisted on‐demand disinfection properties and versatil...

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Bibliographic Details
Published in:Small (Weinheim an der Bergstrasse, Germany) Germany), 2024-09, Vol.20 (38), p.e2400531-n/a
Main Authors: Zaccagnini, Federica, De Biase, Daniela, Bovieri, Francesca, Perotto, Giovanni, Quagliarini, Erica, Bavasso, Irene, Mangino, Giorgio, Iuliano, Marco, Calogero, Antonella, Romeo, Giovanna, Singh, Dharmendra Pratap, Pierini, Filippo, Caracciolo, Giulio, Petronella, Francesca, De Sio, Luciano
Format: Article
Language:English
Subjects:
biosensing
Biosensing Techniques - methods
Biosensors
Broadband
Disinfection
Disinfection - methods
Environmental monitoring
face masks
heterostructures
Humans
Light
Masks
Metasurfaces
Nanomaterials
Nanostructures - chemistry
Optical properties
Pathogens
Self-assembly
White light
white light disinfection
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Summary:A new generation of an FFP2 (Filtering Face Piece of type 2) smart face mask is achieved by integrating broadband hybrid nanomaterials and a self‐assembled optical metasurface. The multifunctional FFP2 face mask shows simultaneously white light‐assisted on‐demand disinfection properties and versatile biosensing capabilities. These properties are achieved by a powerful combination of white light thermoplasmonic responsive hybrid nanomaterials, which provide excellent photo‐thermal disinfection properties, and optical metasurface‐based colorimetric biosensors, with a very low limit of pathogens detection. The realized system is studied in optical, morphological, spectroscopic, and cell viability assay experiments and environmental monitoring of harmful pathogens, thus highlighting the extraordinary properties in reusability and pathogens detection of the innovative face mask. A cutting‐edge generation of FFP2 face masks is developed by synergizing the photo‐thermal disinfection properties of Ag@Au NPs heterostructures with the environmental biosensing capabilities of an optical metasurface. This biocompatible device is engineered for reusability through on‐demand white light disinfection. Simultaneously, the integrated biosensor metasurface enables the selective and versatile detection of environmentally harmful pathogens using a color change mechanism.
ISSN:1613-6810
1613-6829
1613-6829
DOI:10.1002/smll.202400531