Multivesicular Lipid Nanoparticle SNIPR for Room-Temperature Stability

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Solution Overview

Problem

Current lipid nanoparticle vaccines are unstable at room temperature, requiring complex and expensive logistical chains for storage and use, and they cannot effectively deliver multiple payloads to immune cells to induce antigen-specific immune tolerance.

Innovation Solution

The development of multivesicular lipid nanoparticle composition, known as SNIPR, which includes a carrier micelle and sub-chamber inverse micelles, physically cross-linked to enhance stability and release kinetics, allowing for the delivery of multiple payloads to immune cells.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If current lipid nanoparticle vaccines are used, then delivery of payloads to immune cells can be achieved, but stability at room temperature is poor requiring refrigeration

Engineering Contradiction:

Improvestability at room temperatureVSAvoidlogistical chain complexity

Core Design Contradiction:

Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The patent modifies the chemical parameters of the lipid nanoparticle components, specifically using cholesterol-modified PEG-lipids with particular molecular weights and compositions to enhance thermal stability. This allows the vaccine to maintain stability at room temperature without requiring complex refrigeration logistics

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The invention creates a composite lipid nanoparticle system combining multiple lipid components including ionizable lipids, PEG-lipids, and cholesterol in specific ratios. This composite structure provides both the payload delivery capability and the thermal stability needed to eliminate refrigeration requirements

Inventive Principle:

Principle #40Composite materials

2Stability of the object's composition

If standard lipid nanoparticle vaccines are used, then storage and transportation require refrigeration, but the multivesicular structure enables extreme stability at high ambient temperatures

Engineering Contradiction:

Improvestability at high ambient temperaturesVSAvoidmanufacturing complexity

Core Design Contradiction:

Stability of the object's compositionVSEase of manufacture

Solution Approach 1:

The patent employs a multivesicular structure where smaller vesicles are encapsulated within a larger carrier vesicle. This segmentation provides multiple protective barriers that enhance thermal stability and payload protection, allowing storage at high ambient temperatures while maintaining manufacturability through scalable formulation approaches

Inventive Principle:

Principle #1Segmentation

3Adaptability or versatility

If single-payload delivery systems are used, then simplicity is maintained, but multiple payloads cannot be delivered to induce antigen-specific immune tolerance

Engineering Contradiction:

Improvemulti-payload delivery capabilityVSAvoidnanoparticle structure complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The multivesicular lipid nanoparticle is designed as a universal delivery platform that can accommodate multiple different payloads including antigens, adjuvants, and immune modulators. The carrier vesicle and internal vesicles can each be loaded with different therapeutic agents, enabling simultaneous delivery of multiple components to induce antigen-specific immune tolerance

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent implements a nested structure where smaller functional vesicles are contained within a larger carrier vesicle. This nested architecture allows each vesicle to carry specific payloads while the overall structure remains manageable in size for cellular uptake, achieving multi-payload delivery without excessive complexity

Inventive Principle:

Principle #7Nested doll (Nesting)

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

SNIPR nanoparticles achieve extreme stability at high ambient temperatures, enabling prolonged storage and transportation without refrigeration, while effectively inducing antigen-specific immune tolerance by delivering multiple payloads to immune cells.

Implementation Method 1

physically cross-linked to enhance stability and release kinetics

Methodology Applied

Scientific EffectPhysical cross-linking: Chemical Bonding

Data Source

PatentUS20250064740A1Multi-vesicular lipid nanoparticle tolerogenic vaccines for induction of systemic immune tolerance in vivo

Publication Date: 2025.02.27 KARMA BIOTECHNOLOGIES

AI summary

A multivesicular lipid nanoparticle composition includes a plurality of multivesicular lipids. Each multivesicular lipid nanoparticle includes a carrier phospholipid micelle including a carrier phospholipid layer and having an average diameter less than 1 micron; and at least one sub-chamber phospholipid inverse micelle including a sub-chamber phospholipid layer and having an average diameter less than 100 nm. The carrier micelle nanoparticle encapsulates the at least one sub-chamber inverse micelle nanoparticle. Characteristically, phospholipid tail groups of the carrier micelle are covalently linked to the phospholipid tail groups of at least one sub-chamber inverse micelle nanoparticle.