Natural-Material Nanoparticle Compositions for Stable Agent Delivery
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current nanoparticle delivery systems for hydrophobic compounds face issues such as instability, uneven distribution, precipitation, and reliance on synthetic compounds, leading to poor bioavailability and unsuitability for human use.
Innovation Solution
Development of stable nanoparticle compositions using natural materials, comprising water, phospholipids, oils, and saponins, which can maintain stability and suspension over months, reduce degradation, and enhance compound concentration without requiring microfluidization or high-pressure homogenization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If current nanoparticle delivery systems are used for hydrophobic compounds, then delivery capability is provided, but stability deteriorates causing precipitation and separation
Solution Approach 1:
The patent uses a composite nanoparticle system combining phospholipids (forming the structural matrix), saponins (providing stabilization), and hydrophobic compounds (the payload). This multi-component composite approach creates a synergistic effect where each material contributes its unique properties to achieve both delivery capability and long-term stability without precipitation or separation.
Solution Approach 2:
The patent optimizes specific parameter ranges: phospholipid concentration (1-25 wt%), saponin concentration (0.001-5 wt%), and oil content (3-50 wt%). By precisely controlling these parameters, the formulation achieves a balance between maintaining nanoparticle integrity for stable suspension and providing sufficient capacity for hydrophobic compound delivery.
2Reliability
If current nanoparticle formulations are used, then active ingredient delivery is enabled, but distribution uniformity deteriorates causing uneven delivery
Solution Approach 1:
The patent achieves homogeneous distribution through the amphiphilic nature of phospholipids and saponins, which self-assemble into uniform nanoparticle structures with consistent hydrophobic cores and hydrophilic surfaces. This homogeneous structure ensures even distribution throughout the aqueous medium and uniform delivery of the active ingredient, eliminating aggregation and precipitation issues.
3Stability of the object's composition
If synthetic compounds are used for nanoparticle stability, then stability is improved, but safety deteriorates making nanoparticles unsuitable for human use
Solution Approach 1:
The patent replaces persistent synthetic stabilizers with naturally-derived phospholipids and saponins that are biocompatible and metabolizable. These natural components provide sufficient stability for the product shelf life without accumulating in the body or causing long-term harm, effectively using 'short-living' natural materials instead of permanent synthetic ones.
Solution Approach 2:
Saponins act as natural intermediary molecules between the hydrophobic active ingredients and the aqueous environment. These naturally-derived surfactants provide the necessary stabilization for human use, mediating the interface between oil and water phases without the safety concerns associated with synthetic surfactants.
4Quantity of substance
If hydrophobic compounds are used directly, then active ingredient potency is maintained, but bioavailability deteriorates due to low water solubility
Solution Approach 1:
The patent segments the hydrophobic active ingredient into nanoparticle-sized units (typically 50-500 nm diameter) with hydrophilic phospholipid and saponin exteriors. This segmentation allows the potent hydrophobic compound to be dispersed as numerous small particles throughout the aqueous medium, dramatically increasing the surface area available for absorption and thus improving bioavailability while maintaining potency.
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 provide stable nanoparticles capable of carrying a broad range of compounds, maintaining stability and suspension, reducing degradation, and achieving higher compound concentrations, suitable for both topical and internal use.
Implementation Method 1
the nanoparticles are made of only natural materials... comprising at least one phospholipid, at least one oil other than the phospholipid, and at least one saponin
Implementation Method 2
the nanoparticles may stay in suspension over months of storage, and/or may reduce degradation of the compounds of interest
Data Source
AI summary
Several embodiments pertain to nanoparticle-based compositions and their use in methods for the delivery of active agents to subjects and to products. In several embodiments, the compositions are stable for prolonged periods of time and provide enhanced bioavailability and/or dispersibility.