Nano Silver Deodorizing Formula With Stabilized Oxygen Release

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing deodorants and antiperspirants provide temporary relief, cause irritation, and lack long-term efficacy due to instability of reactive ingredients and insufficient penetration of nano-scale silver particles, often relying on masking agents and aluminum-based compounds.

Innovation Solution

A formulation comprising sodium or potassium percarbonate, carbonate, and nano-sized silver colloids coated with PVP or natural polymers, which release and stabilize oxygen to neutralize odor-causing compounds and penetrate skin pores to eliminate bacteria.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional deodorants use masking agents and aluminum-based compounds, then odor control is achieved, but skin irritation and pore clogging occur

Engineering Contradiction:
Improveodor control effectivenessVSAvoidskin irritation
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent employs sodium percarbonate as a strong oxidizing agent that releases active oxygen to chemically neutralize odor-causing compounds through oxidation. This approach directly destroys the odor molecules rather than masking them, while being gentler on skin compared to traditional aluminum-based compounds and alcohol-based bactericides.

Inventive Principle:
Principle #38Strong oxidants (Accelerated oxidation)

Solution Approach 2:

The patent converts the typically harmful effect of reactive oxygen species into a beneficial deodorizing mechanism. The percarbonate decomposition produces oxygen that oxidizes and eliminates odorants and bacteria, transforming what could be a destabilizing factor into the core active ingredient for odor neutralization.

Inventive Principle:
Principle #22Blessing in disguise (Convert harm into benefit)

2Reliability

If nano-scale silver particles are used for antibacterial action, then bacterial elimination is improved, but particle stability and penetration efficacy are insufficient

Engineering Contradiction:
Improvebacterial elimination effectivenessVSAvoidsilver particle stability
Core Design Contradiction:
ReliabilityVSStability of the object's composition

Solution Approach 1:

The patent creates a composite system where silver particles are integrated into a percarbonate-based formulation. The percarbonate acts as both an independent antibacterial agent and a stabilizing matrix for the silver particles, preventing aggregation and enhancing their penetration into skin pores while maintaining colloidal stability.

Inventive Principle:
Principle #40Composite materials

Solution Approach 2:

The percarbonate formulation serves as an intermediary carrier for the silver particles, facilitating their delivery to the skin surface and into pores. The decomposition products of percarbonate may also act as intermediaries that enhance silver particle stability and prevent premature aggregation.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Speed

If percarbonate is used as oxidant, then deodorizing action is rapid, but ingredient stability in aqueous environment is poor

Engineering Contradiction:
Improvedeodorizing action speedVSAvoidpercarbonate stability
Core Design Contradiction:
SpeedVSStability of the object's composition

Solution Approach 1:

The patent formulates percarbonate in a way that maintains stability during storage (preventing premature decomposition) while enabling rapid activation upon application to skin. The controlled release mechanism ensures that the oxidizing action occurs at the appropriate time and location for maximum deodorizing effectiveness.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent optimizes parameters such as pH, concentration, and formulation composition to balance percarbonate stability and reactivity. By adjusting these parameters, the formulation maintains stability in the bottle but activates rapidly when applied to skin, achieving both storage stability and fast action.

Inventive Principle:
Principle #35Parameter changes

4Quantity of substance

If aluminum-based compounds are used to block sweat ducts, then sweat reduction is achieved, but long-term safety concerns arise

Engineering Contradiction:
Improvesweat output reductionVSAvoidlong-term safety
Core Design Contradiction:
Quantity of substanceVSReliability

Solution Approach 1:

The patent replaces the mechanical blocking approach of aluminum compounds with a chemical oxidation approach using percarbonate. Instead of physically blocking sweat ducts, the formulation chemically neutralizes odor-causing compounds and bacteria, achieving deodorizing effects without the safety concerns associated with aluminum-based antiperspirants.

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

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

Provides rapid, long-lasting odor neutralization with minimal irritation, effective against both skin surface and pore-resident bacteria, and enhances stability and penetration.

Implementation Method 1

sodium percarbonate readily decomposes in water, releasing oxygen

Methodology Applied
Scientific EffectDecomposition: Decomposition (biological)

Implementation Method 2

the oxidation is transient and ineffective for long-term odor control

Methodology Applied
Scientific EffectOxidation: Oxidation

Implementation Method 3

The carbonate component helps retain the oxygen in solution, enhancing longevity and stability

Methodology Applied
Scientific EffectStabilization:

Implementation Method 4

nano-sized silver particles small enough (2-100 nm) to penetrate into skin pores (typically 250-500 nm)

Methodology Applied
Scientific EffectPenetration: Permeation

Implementation Method 5

Many commercial formulations also rely on aluminum-based compounds to block sweat ducts or incorporate strong synthetic fragrances to mask odor

Methodology Applied
Scientific EffectAntimicrobial action:

Data Source

PatentUS20250387308A1Deodorizing Formula and Methods of Production of the Same
Publication Date: 2025.12.25 WHELAN DAVID JOHN
  • US20250387308A1 patent drawing
  • US20250387308A1 patent drawing
  • US20250387308A1 patent drawing

AI summary

A deodorizing formula including water, a first solute selected from sodium or potassium percarbonate, a second solute selected from sodium or potassium carbonate, and silver nano-particles wherein said silver particles may be selected from silver colloid particles, silver colloid particles coated with polyvinylpyrrolidone (PVP), and silver colloid particles comprising coated with a natural polymer. The first solute releases oxygen upon decomposition in water, while the second solute stabilizes the released oxygen. The silver nanoparticles penetrate skin pores to eliminate odor-causing bacteria and neutralize odor compounds. The method includes sequential mixing of components, aging the solution, and packaging into sprayable or topical forms for immediate and long-lasting deodorizing effects.