pH-Responsive Enteric Capsules for Black Seed Oil Delivery
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing black seed oil administration methods cause negative gastric side effects due to dissolution in the stomach, necessitating a new formulation that maintains integrity in gastric acid and releases effectively in the intestines.
Innovation Solution
An enteric capsule formulation with a coating or incorporated enteric component, using polymers like HPMCP, ensures the black seed oil remains intact in gastric acid and dissolves at higher pH in the duodenum, jejunum, or ileum and colon, targeting specific regions of the digestive tract.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If black seed oil is administered in conventional formulations, then it provides beneficial health effects, but it causes negative gastric side effects due to dissolution in the stomach
Solution Approach 1:
The capsule shell is segmented into distinct functional layers: an enteric coating layer that resists gastric acid, a substrate layer providing structural integrity, and a banding solution layer that seals the capsule. This segmentation allows each layer to perform its specific function in protecting and delivering the black seed oil content.
Solution Approach 2:
The enteric coating acts as an intermediary barrier between the black seed oil content and the gastric environment. This coating layer mediates the interaction by preventing direct contact between the oil and stomach acid, thereby eliminating gastric side effects while allowing the content to reach the intestine intact.
2Stability of the object's composition
If the capsule uses an enteric coating to protect against gastric acid, then it maintains integrity in the stomach, but it requires specific polymer materials and coating processes
Solution Approach 1:
The capsule employs composite material structure with an enteric coating layer made of acid-insoluble polymers (such as HPMCP) over a substrate layer. This composite structure combines materials with different properties: the enteric coating provides acid resistance while the substrate provides mechanical strength, achieving both protection and structural integrity.
Solution Approach 2:
The enteric coating utilizes parameter changes in polymer solubility with respect to pH. The coating remains intact at low pH (gastric environment) and dissolves at higher pH (intestinal environment), automatically responding to environmental changes to release the content at the appropriate location.
3Ease of operation
If the capsule is designed to dissolve at higher pH in the intestine, then it targets the desired region, but it requires pH-sensitive polymer properties
Solution Approach 1:
The capsule employs self-service dissolution behavior where the enteric coating automatically responds to pH changes in the digestive tract. No external control or activation is needed - the coating dissolves on its own when it encounters the higher pH environment of the intestine, enabling targeted delivery through inherent material properties.
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 avoids gastric discomfort by maintaining integrity in the stomach and effectively delivers black seed oil to the desired intestinal regions, enhancing bioavailability and reducing side effects.
Implementation Method 1
the enteric capsule includes an acid-insoluble polymer... the black seed oil formulation remains intact in gastric acid (e.g., endogenous or simulated gastric acid) having a pH 3 or lower
Implementation Method 2
the black seed oil formulation dissolves or disintegrates at a pH greater than about 5.5... dissolves or disintegrates at a pH of about 6 to about 7, while remaining intact at a pH under about 5.5 to target the jejunum
Data Source
AI summary
A black seed oil formulation that includes an enteric capsule and black seed oil contained therein for administration to a subject.