Alginate Encapsulation for Cost-Effective Liquid Delivery

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Solution Overview

Problem

Current methods for producing encapsulated liquid products are costly and require specialized equipment, limiting their accessibility and application in industries such as pharmaceuticals and wildlife management.

Innovation Solution

A method for encapsulating hydrophilic liquid materials by crosslinking alginic acid monomers with calcium lactate, forming a gel-like outer membrane that is edible, biodegradable, and mucoadhesive, allowing for the production of encapsulated liquid products without expensive machinery.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If commercial liquid encapsulation methods are used, then encapsulated liquid products can be produced, but the production cost is high and specialized equipment is required

Engineering Contradiction:

Improveencapsulation qualityVSAvoidproduction cost and equipment requirement

Core Design Contradiction:

ReliabilityVSEase of manufacture

Solution Approach 1:

The patent replaces expensive, specialized encapsulation equipment with simple, disposable materials such as droppers, petri dishes, and basic laboratory glassware. The encapsulation process uses readily available reagents (calcium chloride solution, sodium alginate solution) that can be prepared in advance and discarded after use, eliminating the need for costly specialized machinery while maintaining reliable encapsulation results.

Inventive Principle:

Principle #27Cheap short-living objects (Disposable)

Solution Approach 2:

The patent substitutes complex mechanical encapsulation systems with a simple chemical crosslinking reaction. Instead of using specialized extrusion or coating equipment, the encapsulation is achieved through the spontaneous gelation reaction between sodium alginate and calcium chloride, forming a stable capsule wall through ionic crosslinking. This chemical approach replaces elaborate mechanical systems with a straightforward chemical process.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Adaptability or versatility

If encapsulated liquid products are produced for pharmaceutical and wildlife management applications, then delivery effectiveness is improved, but manufacturing complexity increases

Engineering Contradiction:

Improveapplication rangeVSAvoidmanufacturing process complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent develops a universal encapsulation platform that can deliver various liquid formulations across multiple applications including pharmaceuticals, wildlife management, and agriculture. The same basic encapsulation protocol using sodium alginate and calcium chloride can encapsulate different active ingredients (vaccines, attractants, repellents, pesticides) without requiring different equipment or complex process modifications, enabling one system to serve multiple functions.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent simplifies manufacturing by adjusting key parameters such as the concentration of sodium alginate (0.5-2% w/v), calcium chloride concentration (1-5% w/v), and droplet size (1-5 mm diameter) to optimize encapsulation for different applications. These parameter adjustments allow the same basic process to produce capsules suitable for oral administration to livestock, wildlife bait stations, or pharmaceutical delivery without fundamentally changing the manufacturing approach.

Inventive Principle:

Principle #35Parameter changes

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 method enables the cost-effective production of encapsulated liquid products that are suitable for various applications, including pharmaceutical delivery and wildlife management, offering improved mucoadhesion and ease of administration.

Implementation Method 1

crosslinking an alginic acid monomer with calcium lactate

Methodology Applied

Scientific EffectIonic bonding: Chemical Bonding

Implementation Method 2

enhancing mucoadhesion for improved uptake

Methodology Applied

Scientific EffectMucoadhesion: Adhesive

Data Source

PatentUS20250032422A1Encapsulated liquid product and process for encapsulating hydrophilic material

Publication Date: 2025.01.30 US SEC AGRI

AI summary

An encapsulated liquid product and method for encapsulating hydrophilic liquid formulation prepared by crosslinking an alginic acid monomer with calcium lactate for use in administering liquid vaccines, attractants, repellents, toxicants, pesticides, and/or biomarkers to wildlife and livestock. The encapsulated liquid product is edible and biodegradable. Formulations can be produced without expensive machinery. Sublingual or buccal delivery of drugs encapsulating liquid products serves a dual purpose of enhancing mucoadhesion for improved uptake as well as containment prior to ingestion by the target organism. The ability to produce formulations without expensive machinery is currently lacking in the encapsulated liquid materials industry.