Caffeine Transdermal Delivery Using Helper Esters
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Solution Overview
Problem
Oral administration of caffeine is limited by its bitter taste and the need for masking with sweeteners, and alternative methods have their own drawbacks, necessitating a more effective delivery method.
Innovation Solution
A caffeine-containing composition with increased solubility and skin penetration rate, utilizing helper esters such as amino acid esters and other acid esters, for transdermal delivery via sprays, roll-on applicators, or cotton swabs, using non-toxic solvents like water and ethanol, to enhance bioavailability and avoid taste issues.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If caffeine is administered orally, then it provides psychoactive effects and therapeutic benefits, but it has an intensely bitter taste and requires masking with sweeteners and additives
Solution Approach 1:
The patent extracts caffeine from the oral administration route and delivers it through the transdermal route, eliminating the need for masking bitter taste while maintaining therapeutic effectiveness. The caffeine is delivered in a non-toxic solvent system through the skin, bypassing the taste issue entirely.
Solution Approach 2:
The patent uses non-toxic solvents (water, ethanol, isopropanol) as intermediaries to deliver caffeine transdermally. These solvents enable caffeine delivery without requiring bitter-tasting oral formulations, and the solvents themselves are safe for skin contact and absorption.
2Quantity of substance
If organic solvents are used to increase caffeine solubility, then solubility improves, but the solvents may damage the skin and be toxic to humans and animals
Solution Approach 1:
The patent changes the parameters of the solvent system by using non-toxic solvents (water, ethanol, isopropanol) at controlled concentrations. This allows sufficient caffeine solubility while maintaining safety for transdermal application, avoiding the toxicity issues of traditional organic solvents.
Solution Approach 2:
The patent creates a composite solvent system combining multiple non-toxic solvents (water, ethanol, isopropanol) with caffeine and helper esters. This composite formulation achieves the required solubility and skin penetration properties while maintaining non-toxicity, as each component is safe for skin contact.
3Object-affected harmful factors
If water or non-toxic solvents are used for transdermal delivery, then safety improves, but caffeine solubility remains low at room temperature
Solution Approach 1:
The patent introduces helper esters (amino acid esters and other acid esters) as intermediaries to enhance caffeine solubility in non-toxic solvents. These esters act as solubilizing agents that allow caffeine to dissolve adequately in water, ethanol, or isopropanol without requiring toxic organic solvents.
Solution Approach 2:
The patent formulates a composite system combining caffeine with helper esters and non-toxic solvents. This composite approach enables sufficient solubility and skin penetration while maintaining the safety profile of non-toxic components, resolving the contradiction between solubility and toxicity.
4Object-affected harmful factors
If transdermal delivery is implemented, then bitter taste and additive requirements are eliminated, but caffeine solubility and skin penetration rate are initially low
Solution Approach 1:
The patent uses helper esters as intermediary substances to enhance both solubility and skin penetration rate of caffeine in transdermal formulations. These esters facilitate caffeine's passage through the skin barrier while maintaining solubility in non-toxic solvents, enabling effective transdermal delivery without taste or additive issues.
Solution Approach 2:
The patent optimizes parameters including solvent composition, helper ester selection, and caffeine concentration to achieve adequate solubility and penetration rate. By adjusting these parameters within the non-toxic solvent system, the formulation achieves effective transdermal delivery while eliminating the need for bitter-tasting oral formulations.
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 caffeine composition allows for efficient transdermal absorption, providing mental stimulation, wakefulness, and cardiovascular benefits without the bitter taste and additive requirements of oral administration, with a controlled release and reduced risk of overdose.
Implementation Method 1
the solubility of caffeine in water at room temperature and the skin penetration rate of caffeine have been increased significantly
Implementation Method 2
enhance its skin penetration rate
Implementation Method 3
Methods and compositions for transdermal delivery of caffeine
Data Source
AI summary
One aspect of the invention relates to caffeine-containing compositions comprising caffeine and one or more esters. The caffeine-containing compositions disclosed herein can be used for effective transdermal delivery of caffeine to a subject. Another aspect of the invention relates to applications and preparations of the caffeine-containing compositions.