Alveolar Stick Diffusion for Stable, Passive Semiochemical Release
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Solution Overview
Problem
Existing semiochemical distribution systems, such as electric diffusers and diffuser blocks, face limitations including the need for electrical outlets, potential toxicity from volatile compounds, and chemical instability of certain pheromone molecules, which affect their effectiveness and safety for companion animals.
Innovation Solution
A method involving a stick with an alveolar internal structure that utilizes capillary action to passively diffuse a semiochemical composition, particularly using a solvent like 3-methoxy-3-methyl-1-butanol, which is non-toxic and volatile, ensuring all active ingredients are released in an unaltered form over time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If electric diffusers are used to distribute semiochemicals, then the semiochemicals can be released in the environment, but electrical outlets are required and toxic volatile compounds may be released
Solution Approach 1:
The patent replaces the electric diffuser system (electrical/mechanical) with a passive diffusion system using capillary action. The stick structure absorbs semiochemicals from the composition and releases them through capillary action without requiring electrical power, thereby eliminating the source of toxic volatile compounds while maintaining effective semiochemical distribution.
Solution Approach 2:
The stick acts as an intermediary between the semiochemical composition and the environment. It absorbs the semiochemicals and controls their release through capillary action, providing a safe mediation that prevents direct release of potentially harmful compounds while ensuring effective distribution of the active semiochemical ingredients.
2Reliability
If diffuser blocks are used to release pheromones, then pheromones can be distributed in the air, but certain pheromone molecules become chemically unstable and disappear
Solution Approach 1:
The stick structure functions as a porous material that provides a suitable matrix for pheromone storage and release. The porous structure allows capillary action to distribute pheromones evenly while maintaining their chemical stability, preventing the degradation that occurs in diffuser blocks while ensuring continuous air distribution.
Solution Approach 2:
The patent changes the physical parameters of the release system from a dense block structure to a porous stick structure with specific capillary properties. This parameter change in the release medium's porosity and surface area enables stable pheromone molecules to be maintained while still achieving effective distribution in the air.
3Object-affected harmful factors
If passive diffusion sticks are used, then no electrical power is needed and toxic compounds are minimized, but the release duration and consistency must be maintained
Solution Approach 1:
The stick structure enables continuous passive diffusion of semiochemicals over an extended period. The capillary action mechanism maintains a steady release rate without interruption, ensuring prolonged effectiveness while keeping the system simple and free from electrical components that could introduce toxicity.
Solution Approach 2:
The system uses self-service passive diffusion where the stick automatically absorbs and releases semiochemicals through capillary action without external power or intervention. This self-regulating mechanism maintains consistent release duration while eliminating the need for electrical systems that could compromise safety.
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 provides a safe, effective, and prolonged release of semiochemicals, mimicking natural pheromonal diffusion, without the need for electrical power and minimizing chemical alteration, suitable for companion animals and indoor environments.
Implementation Method 1
A method involving a stick with an alveolar internal structure that utilizes capillary action to passively diffuse a semiochemical composition
Implementation Method 2
particularly using a solvent like 3-methoxy-3-methyl-1-butanol, which is non-toxic and volatile, ensuring all active ingredients are released in an unaltered form over time
Data Source
AI summary
The invention relates to a method of releasing a semiochemical in an environment by passive diffusion, wherein the method comprises contacting a stick presenting with an alveolar internal structure extending over its longitudinal section with a composition of semiochemical, where the composition of semiochemical comprises a solvent that is an alcohol or an ester, preferably an alcohol or an ester with a density inferior to 1, a kinematic viscosity inferior or equal to 15 mm2/s at 20° C. and/or a dynamic viscosity inferior or equal to 14 mPa/s at 20° C., and which is volatile at room temperature, and enabling the stick to be filled by capillary action with the said composition of semiochemical and to release the said composition of semiochemical in the environment over time. The stick can be made of the stem of a palm tree of the Calamus genus. The invention also relates to a kit for passive diffusion of a semiochemical, wherein said kit comprises one or more sticks and a composition of semiochemical, optionally with a further container for holding the composition of semiochemical and the sticks while used. The invention also relates to a stick or a set or a kit comprising a plurality of sticks filled with a composition of semiochemical or the use of a kit, or of a filled stick, for releasing a semiochemical in the environment.