3D-Printed Ion Sensors Using Multi-Fluid Fusing Agents
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Solution Overview
Problem
Three-dimensional printing systems are limited by the range of materials used, making it difficult to produce functional parts with desired properties such as mechanical strength and visual appearance, and there is a need for systems that can rapidly prototype and customize parts for commercial sectors like aviation and medical industries.
Innovation Solution
The use of multi-fluid kits for three-dimensional printing that include a fusing agent with an electromagnetic radiation absorber and an ion-sensing agent with a redox-active inorganic salt, which reacts with target metal cations to form a colored pigment, allowing for the creation of custom-shaped sensors that can detect metal ions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If traditional three-dimensional printing materials are used, then the printing process is simple, but the mechanical strength and visual appearance of the printed parts are insufficient
Solution Approach 1:
The patent uses composite materials by combining polymer particles with metal cations and redox-active inorganic salts to create multi-functional printed parts that achieve both mechanical strength and sensing capabilities
Solution Approach 2:
The printed parts serve multiple functions simultaneously: structural support from polymer particles and ion sensing from redox-active inorganic salts, eliminating the need for separate sensing components
2Adaptability or versatility
If a wide range of materials are used to achieve desired properties, then the functional properties are improved, but the system complexity and cost increase
Solution Approach 1:
The patent merges multiple materials (polymer particles, metal cations, redox-active inorganic salts) into a single integrated printing system that can produce multi-functional parts without requiring separate systems for each function
3Adaptability or versatility
If conventional printing materials are used, then the production process is straightforward, but the ability to create functional sensors is limited
Solution Approach 1:
The patent incorporates redox-active inorganic salts and metal cations into the printing materials beforehand, so that the sensing functionality is built-in during the printing process itself, eliminating the need for post-processing or separate sensor assembly steps
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 the production of affordable, customizable three-dimensional printed sensors that can detect metal ions, useful for applications like corrosion monitoring and water quality testing, with the ability to change color upon exposure to target metal cations.
Implementation Method 1
The electromagnetic radiation absorber absorbs radiation energy and converts the radiation energy to heat
Implementation Method 2
The redox-active inorganic salt can be reactive with a target metal cation to form a water-insoluble colored pigment
Data Source
AI summary
This disclosure describes multi-fluid kits for three-dimensional printing, three-dimensional printing kits, and methods of sensing metal ions using three-dimensional printed ion sensors. In one example, a multi-fluid kit for three-dimensional printing can include a fusing agent and an ion-sensing agent. The fusing agent can include water and an electromagnetic radiation absorber. The electromagnetic radiation absorber can absorb radiation energy and convert the radiation energy to heat. The ion-sensing agent can include water and a redox-active inorganic salt.