Anisotropic Fluid Release via Elastic Force Manipulation
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Solution Overview
Problem
Existing technologies for controlled release of compositions from anisotropic fluids require complex procedures and instrumentation, and elastic repulsion forces within these fluids trap guest compositions, preventing their release into the surrounding environment.
Innovation Solution
Manipulation of elastic repulsion forces and introduction of counter forces, such as temperature changes, shear stresses, and electrostatic interactions, to overcome the elastic repulsion and facilitate controlled release of guest compositions from anisotropic fluids into the surrounding environment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If elastic repulsion forces are used to trap guest compositions within anisotropic fluids, then the guest compositions remain sequestered for extended periods, but the release of guest compositions requires complex procedures and instrumentation
Solution Approach 1:
The patent applies parameter changes by modifying physical conditions (temperature, pressure, pH, ionic strength) to alter the elastic repulsion forces between guest compositions and the anisotropic fluid interface. These parameter changes enable controlled release without complex instrumentation, resolving the contradiction between stable sequestration and simple release mechanisms
Solution Approach 2:
The patent replaces complex mechanical release systems (pumps, valves, micrometer-scale chips) with field-based approaches (thermal, electrical, magnetic, chemical fields) that can overcome elastic repulsion forces. This substitution eliminates the need for complex instrumentation while maintaining reliable sequestration during storage
2Reliability
If elastic repulsion forces are increased to prevent release of guest compositions, then the guest compositions remain trapped, but the forces required for release become more difficult to overcome
Solution Approach 1:
The patent employs dynamic control of elastic repulsion forces by making the fluid properties time-dependent through external field application. The elastic forces can be strengthened during storage to prevent unwanted release, then dynamically weakened during release phases through temperature, pressure, or chemical changes, allowing easy overcoming of the forces when needed
Solution Approach 2:
The patent applies preliminary anti-action by pre-establishing conditions that strengthen elastic repulsion forces during storage to prevent unwanted release, then using complementary forces (thermal energy, chemical reactions, field applications) to counteract these forces when release is desired. This resolves the contradiction by preparing the system in advance for both stable storage and easy release
3Manufacturing precision
If complex instrumentation is used for controlled release, then precise delivery can be achieved, but the system becomes less suitable for practical applications
Solution Approach 1:
The patent implements self-service by designing systems where the anisotropic fluid itself responds to environmental changes (temperature, pH, ionic strength) to automatically control the release of guest compositions. The fluid's inherent properties and the elastic repulsion forces work together to provide precise delivery without requiring external complex instrumentation, thereby achieving both precision and ease of operation
Solution Approach 2:
The patent uses environmental parameters (temperature, pH, ionic strength) as intermediaries that mediate between the stored guest compositions and the surrounding environment. These intermediaries trigger and control the release process through their effect on elastic repulsion forces, enabling precise delivery while maintaining simple operation without complex instrumentation
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
Enables on-demand and controlled release of guest compositions by spatially and temporally managing the elastic repulsion forces, eliminating the need for complex instrumentation and allowing for precise delivery of pharmaceuticals, antimicrobials, and other materials.
Implementation Method 1
Manipulation of elastic repulsion forces can occur by changing the molecular orientation or composition of the anisotropic fluid or by changing the surrounding environment (e.g., by changing the temperature)
Implementation Method 2
Exemplary counter forces that may be used to overcome the elastic repulsion forces preventing release include, e.g., elastic forces generated with an internal interface, interfacial tension force, buoyant forces, magnetic forces, osmotic forces, hydrodynamic forces, Marangoni stresses, interfacial shear stresses
Implementation Method 3
exemplary counter forces that may be used to overcome the elastic repulsion forces preventing release include, e.g., elastic forces generated with an internal interface, interfacial tension force, buoyant forces, magnetic forces, osmotic forces, hydrodynamic forces, Marangoni stresses, interfacial shear stresses, optical forces, electrical forces and electrostatic attractions induced by the presence of charged substances
Data Source
AI summary
Systems and methods for the controlled release of a guest composition that is sequestered within a host composition made up of an anisotropic fluid are disclosed. The guest composition is immiscible in the host composition, thus forming an interface between the compositions upon which elastic repulsion forces act to prevent the release of the guest composition from the host composition. The disclosed systems and methods work by changing the elastic repulsion forces and/or introducing one or more counter forces such that the elastic repulsion forces are no longer sufficient to prevent release of the guest composition. Exemplary methods include mechanically changing the host material (e.g., changing its temperature) or inducing a chemical (e.g., electrostatic) attraction sufficient to overcome the elastic repulsion forces. The disclosed systems and methods can be used for a variety of applications requiring “on-demand” delivery of a chemical composition.