Aerosol Production Assembly With Micro-Patterned Anti-Microbial Surfaces
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Solution Overview
Problem
Aerosol delivery devices, such as electronic cigarettes, are susceptible to microbial growth and condensation due to exposure to saliva and other biological matter during use, which can affect cleanliness and efficiency.
Innovation Solution
Incorporating a surface with a biomimicry micro-pattern, such as sharkskin or lotus leaf micro-pattern, that imparts anti-microbial and hydrophobic properties without the use of chemical coatings, to resist microbial growth and condensation on the device surfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If chemical coatings are used to prevent microbial growth and condensation, then anti-microbial and hydrophobic properties are achieved, but device complexity and potential user exposure to chemicals increase
Solution Approach 1:
The patent replaces chemical coatings with a physical micro-structured surface (protrusions and recesses) that provides anti-microbial and hydrophobic properties through mechanical/physical means rather than chemical substances. The micro-structure creates surface tension effects and physical barriers that prevent microbial adhesion and condensation without requiring chemical layers.
Solution Approach 2:
The patent changes the surface parameters by introducing micro-scale geometric features (protrusions and recesses) with specific dimensions and patterns. This transformation from a smooth surface to a micro-structured surface fundamentally alters the surface properties to achieve hydrophobicity and anti-microbial characteristics through physical topology rather than chemical composition.
2Reliability
If chemical coatings are used to prevent microbial growth, then anti-microbial properties are achieved, but user safety may be compromised due to exposure to chemical coatings
Solution Approach 1:
The patent eliminates chemical coatings entirely by using a physical micro-structured surface to provide anti-microbial protection. The micro-protrusions and recesses create a physical environment that prevents microbial adhesion and growth through mechanical/physical mechanisms, thereby removing the source of potential chemical exposure to users.
Solution Approach 2:
The micro-structured surface provides self-cleaning and self-protection properties through its physical structure. The hydrophobic micro-pattern causes liquids and contaminants to bead up and roll off, automatically removing themselves without requiring chemical treatments or user intervention, thus maintaining hygiene without chemical exposure.
3Ease of manufacture
If a smooth surface is used, then manufacturing is simpler, but microbial growth and condensation occur more readily
Solution Approach 1:
The patent transforms the surface parameter by introducing micro-scale geometric features (protrusions and recesses) with specific dimensions and patterns. This transformation from a smooth surface to a micro-structured surface fundamentally alters the surface properties to achieve hydrophobicity and anti-microbial characteristics through physical topology rather than chemical composition.
Solution Approach 2:
The patent adds a micro-scale dimensional layer to the surface by creating protrusions and recesses. This transitions the surface from a two-dimensional smooth plane to a three-dimensional micro-structured topology, enabling anti-microbial and hydrophobic properties through the added vertical dimension and surface complexity.
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 micro-patterned surfaces effectively prevent microbial growth and condensation, maintaining cleanliness and efficiency of aerosol delivery without the use of chemical coatings, thereby enhancing user experience.
Implementation Method 1
a surface of which at least a portion includes a micro-pattern imparting at least one of hydrophobic and anti-microbial properties
Implementation Method 2
a surface of which at least a portion includes a micro-pattern imparting at least one of hydrophobic and anti-microbial properties
Data Source
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AI summary
The present disclosure relates to an aerosol production assembly. The aerosol production assembly may include a reservoir that contains an aerosol precursor composition and an atomizer that receives the aerosol precursor composition from the reservoir and heats the aerosol precursor composition to produce an aerosol. The aerosol production assembly may additionally include a body that directs the aerosol through an outlet. The body may include a surface including a micro-pattern that defines at least one of hydrophobic and anti-microbial properties. The surface including the micro-pattern may not include a chemical coating that provides these properties. Rather, the surface may define a three-dimensional structure that provides hydrophobic and/or anti-microbial properties. A related assembly method is also provided.