Water-Soluble Cannabinoid Nanoparticle Solid Dispersion
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Solution Overview
Problem
Current cannabinoid formulations face challenges with limited bioavailability and stability due to the hydrophobic nature of cannabinoids, leading to gastrointestinal side effects and high production costs.
Innovation Solution
A water-soluble solid dispersion formulation comprising a blend of retinyl palmitate and cannabinoids dispersed as nanoparticles in a biocompatible polymeric hydrophilic matrix, without the use of organic solvents, to enhance bioavailability and stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If vegetable oils, alcohol, or propylene glycol are used as dissolving media for cannabinoids, then the solubility of cannabinoids is improved, but the bioavailability is limited and gastrointestinal side effects occur
Solution Approach 1:
The patent introduces a water-soluble excipient as an intermediary substance that enables cannabinoids to dissolve in water-based formulations without requiring traditional organic solvents. This intermediary agent facilitates solubility while avoiding the gastrointestinal irritation caused by oils, alcohol, and propylene glycol, thus resolving the contradiction between achieving solubility and avoiding harmful effects
Solution Approach 2:
The invention changes the fundamental parameter of the formulation base from organic solvents to water, achieving solubility through molecular-level dispersion in a water-soluble excipient matrix. This parameter change eliminates the need for harmful dissolving media while maintaining or enhancing cannabinoid solubility and bioavailability
2Stability of the object's composition
If self-emulsifying formulations with lipid-based surfactants and oil carriers are used, then the stability of cannabinoid formulations is improved, but the emulsification capability is reduced in the gastro-intestinal track due to interaction with lipase enzymes
Solution Approach 1:
The patent extracts and eliminates lipid-based components (oils, lipid surfactants, and oil carriers) from the formulation, replacing them with a water-soluble excipient system. This extraction removes the source of the problem (lipid-enzyme interaction) while maintaining formulation stability through alternative water-based stabilization mechanisms
Solution Approach 2:
The invention creates a water-based copy of the self-emulsifying system that replicates the stability benefits without the harmful lipid components. The water-soluble excipient system mimics the emulsification and stabilization functions of lipid-based systems but uses water-compatible mechanisms that do not interfere with gastrointestinal enzyme function
3Stability of the object's composition
If high concentrations of surfactants and oil-based carriers are used to maintain formulation stability, then the stability is improved, but gastrointestinal unwanted side effects are caused
Solution Approach 1:
The water-soluble excipient acts as an intermediary that provides stabilization functionality without the harmful effects of high-concentration surfactants and oil carriers. It enables the formulation to achieve stability through water-based mechanisms, eliminating gastrointestinal irritation while maintaining compositional integrity
Solution Approach 2:
The patent replaces expensive, high-concentration surfactant systems with a more economical water-soluble excipient that provides equivalent or superior stabilization at lower concentrations, reducing both cost and gastrointestinal side effects
4Stability of the object's composition
If water miscible co-solvents are used to enhance stability of emulsions, then the stability is improved, but toxicity to the human body increases
Solution Approach 1:
The invention extracts and removes water-miscible co-solvents from the formulation, replacing them with a water-soluble excipient system that achieves stability without toxic additives. This extraction eliminates the source of toxicity while maintaining emulsion stability through water-compatible mechanisms
Solution Approach 2:
The patent creates a toxic-free copy of the stable emulsion system using water-soluble excipients that replicate the stabilizing function of co-solvents without the associated toxicity, achieving the same stability endpoint through safer mechanisms
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 significantly improves the bioavailability and stability of the cannabinoid/retinol blend, enabling effective transdermal and oral delivery while reducing gastrointestinal side effects and production costs.
Implementation Method 1
a water-soluble solid dispersion formulation comprising a blend of retinyl palmitate and cannabinoids dispersed as nanoparticles in a biocompatible polymeric hydrophilic matrix
Implementation Method 2
cannabinoid and retinyl palmitate are dispersed as nanoparticles in said polymeric hydrophilic matrix
Implementation Method 3
melting and effective stirring of a mixture of retinyl palmitate, a cannabinoid, and a polymeric hydrophilic matrix to obtain homogenic liquid melt via thermal fusion
Implementation Method 4
the melt is cooled to yield a solid composite containing highly dispersed cannabinoid/retinyl palmitate blend in the polymeric matrix
Data Source
AI summary
A composition containing a highly bioactive blend of cannabinoid with retinyl palmitate (or other retinyl derivative) in a form of dispersed nanoparticles in a solid biocompatible polymeric matrix. The resulting dispersion may be applied topically or administered orally in solid or liquid form to a subject to prevent and/or treat certain disorders.