Single-Pot Cationic Nanoparticle Formulation for Dermal Care
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Solution Overview
Problem
Current skin care products often fail to provide comprehensive benefits such as moisturizing, protection from environmental pollutants, and anti-aging in a single product, and the preparation of nanoparticles for these products is often complex and costly.
Innovation Solution
A composition comprising cationic nanoparticles, a film-forming ingredient, and a positively charged component that creates a protective, tightening film on the skin, which includes active ingredients like Bakuchiol, Pullulan, and Polyquaternium-22, allowing for improved absorption and long-lasting benefits without lengthy purification steps.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple ingredients are combined to achieve multiple benefits (moisturizing, protection, anti-aging), then the functional versatility is improved, but the formulation complexity and ingredient incompatibility increase
Solution Approach 1:
The patent combines multiple functional ingredients (film-forming agents, cationic ingredients, antioxidants, moisturizers) into a single integrated nanoparticle formulation. The nanoparticles serve as a carrier system that delivers multiple active ingredients simultaneously, merging protection, anti-aging, and moisturizing functions into one product without requiring separate applications of incompatible ingredients.
Solution Approach 2:
The nanoparticle formulation is designed to perform multiple functions: it forms a protective film on the skin, delivers anti-aging ingredients (like retinol or bakuchiol), provides moisturizing benefits, and creates an electrostatic field to attract pollutants. This multi-functional nanoparticle system eliminates the need for multiple separate products and avoids ingredient incompatibility issues.
2Reliability
If nanoparticles are prepared separately and then added to the final product, then the nanoparticle delivery function is improved, but the manufacturing process complexity and cost increase due to purification steps
Solution Approach 1:
The patent merges the nanoparticle preparation step with the final product formulation step. The nanoparticles are synthesized directly in the presence of all other formulation ingredients (film-forming agents, cationic ingredients, active ingredients) in a single pot, eliminating the need for separate purification steps like centrifugation or filtration that would otherwise be required to remove stabilizers or byproducts.
Solution Approach 2:
The formulation ingredients themselves serve dual purposes: they are both the final product components and the nanoparticle stabilizers during synthesis. The film-forming agents and cationic ingredients automatically stabilize the nanoparticles during formation, eliminating the need for additional purification to remove stabilizing agents, as the stabilizers are desired final product ingredients.
3Shape
If tensioning agents are used to provide immediate tightening effect, then the cosmetic improvement is improved, but the user comfort and skin flexibility deteriorate due to stiff film formation
Solution Approach 1:
The patent changes the physical parameters of the film-forming ingredients by incorporating them into nanoparticle structures. This transforms the film properties from stiff and rigid to flexible and elastic. The nanoparticles create a film that can dynamically adapt to skin movements and expressions while maintaining the tightening effect, resolving the contradiction between immediate cosmetic improvement and skin flexibility.
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 composition effectively delivers anti-aging benefits, protects against pollutants, and moisturizes the skin by forming a durable film that adheres well, absorbs active ingredients, and provides immediate and long-term improvements in skin health.
Implementation Method 1
They can change the natural charge of your skin and create an electrostatic field to protect it from pollutants
Implementation Method 2
Many skin products also include ingredients that form a film on your skin when they dry. This film acts like a barrier. It protects your skin from foreign materials and also helps keep your skin hydrated by stopping water from evaporating
Implementation Method 3
Nanoparticles smaller than 10 nanometers can actually move between skin cells
Data Source
AI summary
The present invention is a method of conditioning and treating a person's skin with a novel dermal care formulation characterized by the combination of (a) a cationic nanoparticle composition; (b) a film-forming ingredient; and (c) at least one cationic ingredient not encapsulated within the nanoparticle composition. The formulation may or may not contain a pharmacologically active ingredient. This three-fold system provides a comprehensive approach to dermal care, offering anti-aging, environmental protection, moisturizing and rejuvenating properties. As described and claimed herein, the invention consists of the method of conditioning and treating the skin, the formulations that are applied to skin, and methods of preparing those formulations.