Lambda-Carrageenan Lubricant for HPV Protection
Solution Overview
Problem
Current personal lubricants containing carrageenan are difficult to process into a form suitable for sexual activity due to viscosity issues and rapid drying, leading to ineffective HPV transmission inhibition.
Innovation Solution
Development of low-viscosity, antiviral lubricous compositions with high λ-carrageenan content, processed to maintain viscosity and tactility, using a carrageenan powder with at least 90% λ-carrageenan and up to 10% ι-carrageenan, mixed with a polyol and aqueous solution, heated to form a translucent, effective antiviral lubricant.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If carrageenan is used in personal lubricants to inhibit HPV transmission, then antiviral efficacy is improved, but viscosity increases and the composition becomes difficult to process
Solution Approach 1:
The patent changes the chemical parameters of carrageenan by using highly purified λ-carrageenan with specific sulfation levels (90-100% purity) and controlling the degree of ester sulfate groups. This parameter optimization allows the composition to maintain antiviral efficacy while achieving suitable viscosity for processing and application.
Solution Approach 2:
The patent applies local quality by using a specific form of carrageenan (λ-carrageenan) with distinct chemical properties different from other forms (κ-, ι-). This localized selection of carrageenan type with specific sulfation patterns enables the composition to have both antiviral activity and appropriate rheological properties for lubricant application.
2Reliability
If carrageenan-containing compositions are used as personal lubricants, then antiviral protection is provided, but the compositions dry quickly and lose lubricity
Solution Approach 1:
The patent creates a composite material system combining highly purified λ-carrageenan with specific excipients and buffers to form a balanced composition. This composite approach allows the carrageenan to provide antiviral protection while the other components maintain lubricity and prevent rapid drying, extending the duration of action.
Solution Approach 2:
The patent optimizes the concentration of λ-carrageenan (0.1-5% weight/weight) and adjusts pH (6.0-8.0) and ionic strength parameters to balance antiviral efficacy with lubricity retention. These parameter changes ensure the composition remains effective and lubricous throughout the intended duration of use.
3Strength
If κ- and ι-forms of carrageenan are used in lubricant formulations, then gelling and thickening properties are improved, but λ-carrageenan content decreases and antiviral efficacy is reduced
Solution Approach 1:
The patent extracts and isolates specifically the λ-carrageenan form from mixed carrageenan sources, removing the κ- and ι-forms that provide gelling properties but reduce antiviral activity. This extraction of the desired component (λ-carrageenan) while eliminating unwanted forms achieves both high antiviral efficacy and suitable rheological properties through the purified form's intrinsic properties.
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 compositions effectively reduce HPV transmission, retain lubricity, and maintain performance during sexual activity while being safe for use with various bodily fluids.
Implementation Method 1
λ-carrageenan has the most ester sulfate groups per polysaccharide, and is unable to form a gel at all. Increased ester sulfate levels generally result in a lower solubility temperature in water
Data Source
AI summary
The present invention includes pourable, non-toxic lubricating compositions containing carrageenan and more precisely λ carrageenan as an anti-viral agent, for protection from Human Papillomavirus (HPV), and methods of using the lubricating compositions as a non-oily, psuedoplastic lubrication product and administering the carrageenan for reducing the propagation of HPV during sexual activity.