Botanical Insect Repellent Composition Multi-Receptor Inhibition
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Solution Overview
Problem
Current mosquito repellents, such as DEET, IR3535, and Picaridin, are limited in effectiveness as they only target a single chemosensory receptor in mosquitoes, allowing other receptors to still detect human prey, and many botanical extracts used for repellency have toxic side effects.
Innovation Solution
A composition incorporating specific botanical fragrances and their active chemicals that inhibit multiple mosquito chemosensory receptors, including Or47a, Or83b, AgOr65, cpA carbon dioxide, and AaegOr4/AaegOr103 receptors, to create a more effective and safer repellent.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If DEET, IR3535, or Picaridin are used to repel mosquitoes, then repellency is achieved by stimulating the Or47a and Or83b DEET-Like receptor, but effectiveness is limited because only this single receptor is affected while other chemosensory receptors remain active
Solution Approach 1:
The patent segments the mosquito chemosensory system into multiple distinct receptor targets (Or47a, Or83b, AgOr65, cpA, AaegOr4, AaegOr103) and assigns specific botanical chemicals to inhibit each receptor type. This multi-target approach ensures comprehensive coverage of the mosquito's chemosensory array, preventing them from relying on alternative receptors to locate prey.
Solution Approach 2:
The invention combines multiple botanical extracts and their active chemicals into a composite formulation that simultaneously targets multiple mosquito receptors. The synergistic combination of chemicals from different botanical sources creates a repellent that addresses the limitations of single-chemical approaches by engaging multiple chemosensory pathways concurrently.
2Object-affected harmful factors
If botanical extracts are used to repel mosquitoes, then the repellent is perceived as safer and more natural, but toxic side effects from chemicals like methyl eugenol, citral, and d-limonene reduce effectiveness and cause skin irritation
Solution Approach 1:
The patent extracts only the specific active chemicals from botanical sources that demonstrate mosquito repellent activity, while deliberately excluding toxic components. By isolating and formulating only the beneficial repellent chemicals at optimized concentrations, the invention eliminates skin irritation and toxicity issues associated with whole botanical extracts while preserving repellency effectiveness.
Solution Approach 2:
The invention optimizes the concentration parameters of individual chemical constituents within the formulation. By controlling the amounts of each botanical chemical and excluding toxic substances, the formulation achieves effective repellency while maintaining safety for human use, resolving the contradiction between natural safety and effectiveness.
Data Source
AI summary
A composition and method for insect repellent is provided. The composition in one form has on a weight percentage basis 2-4% α-pinene; 2-4% borneol; 8-10% geraniol; 28-35% linalool; 25-38% linalyl acetate; 1-4% methyl salicylate; 2-4% myrcene; 2-4% para-cymene; 4-8% phellandrene; 1-4% thymol; and 2-4% vanillin. The composition has insect repellent properties.