Antimicrobial Gel Formulation Using Boric Acid and Acrylic Polymers

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Solution Overview

Problem

Current topical treatments for microbial infections, such as fungal and bacterial infections, are often expensive and have limited efficacy due to reliance on complex organic compounds, and existing polymers like Noveon AA-1 are typically used within a narrow pH range, limiting their application in treating infections effectively at lower pH levels.

Innovation Solution

Formulating a gel-like composition using cross-linked acrylic acid polymers like Carbopol and Noveon AA-1 in combination with boric acid at a pH between 2 and 5, which is outside the conventional range, to create a stable and effective antimicrobial treatment that can be applied topically for infections like onychomycosis and acne vulgaris.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If complex organic compounds like efinaconazole and tavaborole are used as active ingredients, then antimicrobial efficacy is improved, but manufacturing cost increases significantly

Engineering Contradiction:
Improveantimicrobial efficacyVSAvoidmanufacturing cost
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The patent replaces expensive complex organic compounds with inexpensive inorganic compounds (boric acid, zinc oxide, sulfur) that can be easily manufactured. The formulation uses simple, readily available materials instead of costly proprietary drugs, achieving cost-effective antimicrobial treatment while maintaining therapeutic efficacy through synergistic combinations of basic ingredients.

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

Solution Approach 2:

The patent changes the chemical composition parameters by substituting organic active ingredients with inorganic compounds. This parameter change transforms the formulation from expensive proprietary medications to affordable generic alternatives, reducing manufacturing costs while preserving antimicrobial effectiveness through proven inorganic agents.

Inventive Principle:
Principle #35Parameter changes

2Stability of the object's composition

If cross-linked acrylic acid polymers like Noveon AA-1 are used within the recommended pH range of 6-8, then gel stability is maintained, but antimicrobial efficacy against certain infections is limited

Engineering Contradiction:
Improvegel stabilityVSAvoidantimicrobial efficacy
Core Design Contradiction:
Stability of the object's compositionVSReliability

Solution Approach 1:

The patent deliberately changes the pH parameter from the conventional range of 6-8 to an acidic range of 3-5. This parameter change enhances antimicrobial efficacy by creating an environment more favorable for treating fungal and bacterial infections, while the gel maintains sufficient stability for topical application. The acidic pH also synergizes with the inorganic active ingredients to improve therapeutic effect.

Inventive Principle:
Principle #35Parameter changes

3Stability of the object's composition

If neutralization procedures using chemical bases are followed to formulate polycarbophil, then gel formation is achieved, but the pH remains above the optimal range for treating certain infections

Engineering Contradiction:
Improvegel formationVSAvoidpH range adaptability
Core Design Contradiction:
Stability of the object's compositionVSAdaptability or versatility

Solution Approach 1:

Instead of following the conventional neutralization procedure that raises pH to 6-8 using chemical bases, the patent inverts the approach by intentionally maintaining or adjusting the pH to the acidic range of 3-5. This inversion of the standard formulation method allows the gel to achieve both stability and enhanced adaptability for treating infections that respond better to acidic environments, expanding the versatility of the formulation.

Inventive Principle:
Principle #13The other way round (Inversion)

4Reliability

If existing topical products are used to treat severe infections, then treatment coverage is provided, but side effects such as dry skin, rash and irritation occur

Engineering Contradiction:
Improvetreatment coverageVSAvoidside effects
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent uses simple, inexpensive inorganic compounds instead of complex organic medications that cause side effects. The formulation employs basic ingredients like boric acid, zinc oxide, and sulfur that have long histories of safe use, avoiding the harsh side effects associated with proprietary drugs while maintaining effective treatment coverage for various infections.

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

Solution Approach 2:

The patent creates a composite formulation combining multiple inorganic ingredients (boric acid, zinc oxide, sulfur, and other antimicrobial minerals) that work synergistically together. This composite approach provides broad-spectrum treatment coverage while the natural compatibility of inorganic materials minimizes adverse reactions, reducing side effects compared to single-component organic drugs.

Inventive Principle:
Principle #40Composite 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 formulation provides enhanced antimicrobial and anti-inflammatory effects, with improved patient compliance due to its rapid drying time and retention on the skin, achieving significant improvements in treating fungal and bacterial infections while being more cost-effective than existing treatments.

Implementation Method 1

cross-linked acrylic acid polymers like Carbopol and Noveon AA-1 in combination with boric acid at a pH between 2 and 5, which is outside the conventional range, to create a stable and effective antimicrobial treatment

Methodology Applied
Scientific EffectGel formation: Gel

Implementation Method 2

Boric acid and borate compounds have known anti-microbial characteristics

Methodology Applied
Scientific EffectAntimicrobial action:

Implementation Method 3

Noveon AA-1 Polycarbophil provides excellent bioadhesive properties and has been used extensively to enhance the delivery of active ingredients to various mucous membranes

Methodology Applied
Scientific EffectBioadhesion: Adhesive

Data Source

PatentUS10004683B2Antimicrobial formulations
Publication Date: 2018.06.26 COMMON PHARMA INC

AI summary

A pharmaceutical formulation is disclosed which includes an acrylic acid polymer and boric acid at a pH of less then about 5.0 and more than about 2.0.