E-Cigarette Liquid Composition Reducing Respiratory Toxicity
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Solution Overview
Problem
Existing electronic cigarette compositions are toxic to the respiratory tract and have limitations in nicotine delivery efficiency, which hinders their effectiveness as a smoking cessation tool due to incorrect perception of danger, unsatisfactory sensory experience, and suboptimal nicotine release profile compared to traditional cigarettes.
Innovation Solution
A liquid composition for electronic cigarettes comprising water (25-40% by weight), 1,3-propanediol (30-50% by weight), glycerol (20-30% by weight), a preservative (0.1-5% by weight), optionally nicotine (0.2-6% by weight), flavoring (0-10% by weight), and cyclodextrin (0.1-5% by weight), which replaces propylene glycol to reduce toxicity and enhance nicotine bioavailability and sensory perception.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If propylene glycol and glycerol are used as base components in electronic cigarette compositions, then the composition provides sufficient vapor density and body, but the composition exhibits toxicity to respiratory tract cells
Solution Approach 1:
The patent changes the chemical composition parameters by replacing propylene glycol with water and 1,3-propanediol, maintaining the base component function while reducing toxicity. This parameter change resolves the contradiction by finding alternative substances that provide similar vapor density without the harmful toxic effects on respiratory cells.
Solution Approach 2:
The patent uses a composite base composition consisting of water, 1,3-propanediol, and glycerol in specific proportions. This composite material approach allows the formulation to achieve the desired vapor density and body while the combination of components reduces overall toxicity compared to traditional propylene glycol-based formulations.
2Ease of manufacture
If traditional electronic cigarette formulations are used, then the composition is simpler to manufacture, but the nicotine release profile and delivery efficiency are suboptimal compared to traditional cigarettes
Solution Approach 1:
The patent optimizes multiple formulation parameters including the ratio of water to 1,3-propanediol to glycerol, pH level, and nicotine concentration to enhance nicotine release kinetics. These parameter changes improve nicotine delivery efficiency and release profile while maintaining a relatively simple manufacturing process, resolving the contradiction between ease of manufacture and productivity.
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 composition significantly reduces toxicity, improves nicotine bioavailability, and enhances the sensory experience, making it safer and more effective in delivering nicotine compared to conventional electronic cigarette compositions, approaching the performance of traditional cigarettes in nicotine delivery and user satisfaction.
Implementation Method 1
heating element configured to heat the liquid composition to a temperature sufficient to vaporize the liquid composition
Data Source
AI summary
A liquid composition is for inhalation for electronic cigarettes. A composition for inhalation by electronic cigarette includes the following components: a) water 25-40% by weight, b) 1,3-propanediol 30-50% by weight, c) glycerol 20-30% by weight, d) a preservative 0.1-5% by weight, e) optionally, nicotine 0.2-6% by weight, 0 optionally, a flavouring 0-10% by weight, g) optionally, at least a cycl ° dextrin 0.1-5% by weight.