Polysaccharide Synergic Mixture for Mucous Membrane Adhesion

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Solution Overview

Problem

Polysaccharide gels used in cosmetic applications lack optimal adhesion and ease of application on mucous membranes due to their individual properties not fully meeting the requirements for oral and nasal applications, particularly in terms of adhesion and compliance with the complex anatomical structures and environmental conditions of the oral and nasal cavities.

Innovation Solution

A composition comprising a mixture of at least three polysaccharides from different classes (elastic, weak, viscoelastic, and viscous gels) is developed, specifically formulated to achieve enhanced viscoelastic and adhesive properties suitable for mucosal applications, with specific ratios and combinations of polysaccharides such as Sclerotium gum, Caesalpinia spinosa gum, Ceratonia siliqua gum, and Pectin, which are selected based on rheological and texture analysis to create a product with improved adhesion and compliance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If individual polysaccharides are used in cosmetic formulations, then the formulation is simple and cost-effective, but the adhesion and ease of application on mucous membranes are insufficient

Engineering Contradiction:
Improveformulation simplicityVSAvoidadhesion on mucous membranes
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

The patent applies composite materials by combining multiple polysaccharides (xanthan gum, sclerotium gum, and gellan gum) into a synergistic mixture. Each polysaccharide contributes different rheological properties, and their combination creates a gel formulation with enhanced adhesion and viscoelasticity specifically optimized for mucous membrane applications, resolving the contradiction between formulation simplicity and adhesion reliability.

Inventive Principle:
Principle #40Composite materials

Solution Approach 2:

The patent utilizes parameter changes by adjusting the concentration ratios of different polysaccharides in the mixture. By optimizing the specific proportions of xanthan gum, sclerotium gum, and gellan gum, the formulation achieves optimal adhesion and ease of application parameters for mucous membranes while maintaining manufacturing feasibility.

Inventive Principle:
Principle #35Parameter changes

2Reliability

If polysaccharide gels are formulated for mucosal application, then adhesion is improved, but the complexity of the formulation increases

Engineering Contradiction:
Improveadhesion on mucous membranesVSAvoidformulation complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent employs composite materials by creating a structured mixture of three specific polysaccharides with complementary properties. This composite approach achieves superior adhesion on mucous membranes through synergistic interactions while maintaining a relatively straightforward formulation process, thus managing the complexity trade-off.

Inventive Principle:
Principle #40Composite materials

Solution Approach 2:

The polysaccharide mixture serves multiple functions simultaneously: it provides adhesion to mucous membranes, ensures ease of application through optimal rheology, and maintains stability. This multi-functionality reduces the need for additional formulation components, thereby limiting the increase in formulation complexity while achieving reliable adhesion.

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

3Ease of operation

If a single polysaccharide is used, then the formulation is easy to apply, but it cannot provide optimal adhesion and protective film formation on mucous membranes

Engineering Contradiction:
Improveease of applicationVSAvoidprotective film formation
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent applies composite materials by combining xanthan gum (providing viscosity and ease of application), sclerotium gum (enhancing adhesion), and gellan gum (forming protective films). The synergistic interaction of these polysaccharides maintains ease of application while significantly improving protective film formation and adhesion reliability on mucous membranes.

Inventive Principle:
Principle #40Composite materials

Solution Approach 2:

The patent applies local quality by assigning specific functional roles to each polysaccharide component based on its inherent properties. Xanthan gum primarily provides ease of application through its rheological characteristics, while sclerotium gum and gellan gum contribute to adhesion and protective film formation, respectively. This functional differentiation optimizes both ease of operation and reliability.

Inventive Principle:
Principle #3Local quality

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 polysaccharide mixture demonstrates improved adhesion and ease of application on mucous membranes, providing a protective film that resists flushing by saliva and maintains therapeutic effectiveness for viral and bacterial infections, with specific formulations optimized for oral and nasal use.

Implementation Method 1

The polysaccharide mixture demonstrates improved adhesion and ease of application on mucous membranes, providing a protective film that resists flushing by saliva

Methodology Applied
Scientific EffectAdhesion: Adhesive

Implementation Method 2

A composition comprising a mixture of at least three polysaccharides from different classes (elastic, weak, viscoelastic, and viscous gels) is developed, specifically formulated to achieve enhanced viscoelastic and adhesive properties suitable for mucosal applications

Methodology Applied
Scientific EffectViscoelasticity: Viscoelasticity

Data Source

PatentEP4082529A1A polysaccharide synergic combination for the integrity of mucous membranes
Publication Date: 2022.11.02 UNIFARCO SPA
  • EP4082529A1 patent drawingFigure 1~2
  • EP4082529A1 patent drawingFigure 3~4
  • EP4082529A1 patent drawingFigure 5~6

AI summary

Mucosal composition containing a mixture comprising at least three polysaccharides belonging to at least two of the following classes 1, 2, 3 and 4, as classified in Table 1 below in combination with suitable excipients and/or diluents, in which said mixture has: a) at 1Hz: complex module G∗ comprised between 1 and 500 Pa and Tan δ comprised between 0.3 and 1 b) Adhesivity A- 0.08 - 5 N.mm and c) the relative polysaccharides are selected from Table 2 below This composition is ideal for application on mucous membranes, particularly oral or nasal, in terms of adhesion, ease of application and compliance and is particularly effective in preventing and treating viral and bacterial infections.