Antimicrobial surfaces and method of making same
EP4757599A1Pending Publication Date: 2026-06-17THALES SA
Patent Information
- Authority / Receiving Office
- EP · EP
- Patent Type
- Applications
- Current Assignee / Owner
- THALES SA
- Filing Date
- 2024-08-06
- Publication Date
- 2026-06-17
AI Technical Summary
Technical Problem
Existing antimicrobial surfaces on cards and other items are temporary and prone to losing effectiveness over time due to degradation and uneven distribution of antimicrobial agents, leading to potential microbial transfer and illness.
Method used
The development of antimicrobial deformable elements with a core layer, a piezoelectric surface layer, and a doped diamond layer forming rough nanostructured electrodes and counter-electrodes, which generate a voltage upon deformation, providing long-lasting antimicrobial effects.
Benefits of technology
This solution achieves long-lasting antimicrobial properties and self-cleaning capabilities, effectively reducing microbial transfer and enhancing the durability of antimicrobial surfaces on items like cards.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure EP2024072252_20022025_PF_FP_ABST
Abstract
An antimicrobial deformable element (500) and method (800) of making same can include a core layer (508), at least a first surface layer (507) made of piezoelectric materials applied above the core layer, and a doped diamond layer (501a) applied to at least the first surface layer, where the doped diamond layer forms a plurality of rough nanostructured structures forming a plurality of electrodes (504) and counter-electrodes (502) on at least the first surface layer to provide antimicrobial effects from the material structure itself and from a voltage (or current) generated from a deformation of the antimicrobial deformable element. The voltage difference will typically occur between different rough nanostructured structures having different polarity upon deformation of the deformable element. Such deformation can be bending of a card, but other deformation causing a current or voltage is within contemplation of the embodiments.
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