Silver Titanium Dioxide Coating for Antimicrobial Face Masks

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Solution Overview

Problem

Existing lighting technologies, particularly those using incandescent bulbs, are inefficient in terms of energy consumption and do not effectively address air purification, especially in large area lighting applications like parking lots and warehouses, where they emit pollutants and do not provide antimicrobial properties.

Innovation Solution

The integration of silver titanium dioxide (AgTiO2) into lighting fixtures, which acts as a photocatalyst to degrade organic pollutants and microbes, combined with modular and replaceable components for LEDs, allowing flexible lighting solutions and improved heat dissipation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Illumination intensity

If incandescent bulbs are used for lighting, then illumination intensity is achieved, but energy consumption increases and air purification is not provided

Engineering Contradiction:
Improvelight outputVSAvoidenergy consumption
Core Design Contradiction:
Illumination intensityVSUse of energy by moving object

Solution Approach 1:

The patent transitions from incandescent to LED technology, fundamentally changing the operating parameters of the lighting system. LEDs operate at lower voltages and currents, converting electrical energy more efficiently into light, thereby reducing energy consumption while maintaining or improving illumination intensity.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent replaces the thermal radiation mechanism of incandescent bulbs with the electroluminescence mechanism of LEDs. This substitution eliminates the need to heat a filament to extreme temperatures, directly reducing energy consumption and eliminating harmful emissions associated with thermal radiation.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Illumination intensity

If traditional lighting fixtures are used, then lighting function is provided, but air purification and antimicrobial properties are not achieved

Engineering Contradiction:
Improvelighting functionVSAvoidpollutants and microbes
Core Design Contradiction:
Illumination intensityVSObject-affected harmful factors

Solution Approach 1:

The patent combines lighting functionality with air purification and antimicrobial properties into a single integrated system. The LED fixture incorporates photocatalytic materials and UV-C LEDs, allowing the same device to provide illumination while simultaneously degrading organic pollutants and eliminating microbes through photocatalysis and UV radiation.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The lighting fixture is designed to perform multiple functions: illumination, air purification through photocatalysis, and antimicrobial disinfection. This multi-functional design eliminates the need for separate air treatment devices, making the lighting system universally applicable for both lighting and air quality improvement.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Use of energy by moving object

If LED components are integrated into lighting fixtures, then energy efficiency is improved, but device complexity increases

Engineering Contradiction:
Improveenergy efficiencyVSAvoidfixture structure
Core Design Contradiction:
Use of energy by moving objectVSDevice complexity

Solution Approach 1:

The patent employs modular LED components that can be independently installed and maintained. The lighting fixture is divided into separate functional modules including LED light sources, photocatalytic filters, and UV-C modules, allowing for easier assembly, maintenance, and replacement without requiring complex integration of all components simultaneously.

Inventive Principle:
Principle #1Segmentation

4Object-affected harmful factors

If photocatalytic materials are added to lighting fixtures, then air purification is achieved, but manufacturing complexity increases

Engineering Contradiction:
Improvepollutant degradationVSAvoidmanufacturing process
Core Design Contradiction:
Object-affected harmful factorsVSEase of manufacture

Solution Approach 1:

The patent utilizes porous photocatalytic materials with high surface area to volume ratios, which enhance pollutant degradation efficiency. These porous structures can be manufactured using standard ceramic or polymer processing techniques, and the photocatalytic coating can be applied through conventional spray or dip-coating methods, maintaining manufacturing simplicity while achieving effective air purification.

Inventive Principle:
Principle #31Porous materials

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The solution provides high-efficiency lighting equivalent to traditional 100-watt bulbs while reducing energy consumption and purifying the air by degrading pollutants and microbes, with modular components enabling easy maintenance and adaptation to various lighting needs.

Implementation Method 1

Silver Titanium Dioxide is photocatalytic such that it is activated by light... In portions of the material exposed to the emitted visible light in the 400 nm range or higher, the Silver Titanium Dioxide acts as a photo catalyst for degradation of organic molecule pollutants, and microbes

Methodology Applied
Scientific EffectPhotocatalysis: Photo-oxidation

Implementation Method 2

The light emitting diode may emit light of a specific color (e.g., wavelength) or specific color temperature... In one embodiment, the light emitting diode emits a wavelength between 400 nm to 500 nm or higher

Methodology Applied
Scientific EffectLight emitting diode effect: Light Emitting Diode

Implementation Method 3

The heat sink may be formed of glass or reflective metal... The heat sink dissipates heat from the LED

Methodology Applied
Scientific EffectHeat conduction: Conduction (thermal)

Implementation Method 4

The heat sink may have a plurality of heat dissipating fins

Methodology Applied
Scientific EffectConvection: Convection

Data Source

PatentUS12453788B2Silver titanium dioxide coating material, atomized silver titanium dioxide solution for inhaling and photocatalytic titanium dioxide solution for tattoo removal
Publication Date: 2025.10.28 ANDERSON DELOREN E
  • US12453788B2 patent drawing
  • US12453788B2 patent drawing
  • US12453788B2 patent drawing

AI summary

A device includes a material and a silver titanium dioxide coating supported by the material. The material may be a face mask adapted to be worn by a user. The coating may be applied via a Silver Titanium Dioxide solution. The solution may also be atomized for inhaling. Silver Titanium Dioxide acts as a photocatalyst at least due to the Titanium Dioxide to degrade organic molecules and microorganisms. The silver acts as a Bacteria stat, Fungus stat, and a Virus stat with or without light exposure. A titanium dioxide solution may be applied to skin. Exposure of the solution imbibed skin to light may be performed to remove or reduce tattoos.