PHA Test Strip Housing for Biodegradable Burial Disposal
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Solution Overview
Problem
Conventional test kits used for chemical and biological testing are non-biodegradable, leading to disposal challenges as they cannot be buried at the point of use and require collection and transportation to disposal areas.
Innovation Solution
Development of biodegradable test kits using polyhydroxyalkanoate-based molded body sections that can be disposed of by burial, comprising a first and second molded body section holding a test strip, with optional additional biodegradable polymers like polycaprolactone and polylactic acid.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If conventional plastic materials are used to make test kits, then the test kits have sufficient structural strength and durability, but they are non-biodegradable and require collection and transportation to disposal areas
Solution Approach 1:
The patent changes the material composition parameter by using polyhydroxyalkanoate (PHA) biodegradable polymers instead of conventional plastics, while maintaining structural integrity through specific polymer formulations and molding techniques
Solution Approach 2:
The patent employs composite material structures combining PHA biodegradable polymers with other materials to achieve both biodegradability and sufficient mechanical strength for test kit functionality
2Reliability
If non-biodegradable materials are used, then the test kits maintain structural integrity during use, but they cannot be disposed of by burial and require waste management infrastructure
Solution Approach 1:
The patent modifies the material parameters by selecting PHA biodegradable polymers that maintain structural integrity during the test kit's service life but decompose under burial conditions, enabling direct disposal at the point of use
Solution Approach 2:
The patent creates a disposable test kit designed for single-use and burial disposal, eliminating the need for collection and transportation infrastructure by making the entire kit biodegradable
3Object-generated harmful factors
If biodegradable materials are used, then the test kits can be disposed of by burial, but the structural strength may be reduced compared to conventional plastics
Solution Approach 1:
The patent optimizes the PHA polymer composition and processing parameters to achieve the right balance between biodegradability and structural strength, ensuring the test kit functions properly while remaining disposeable by burial
Solution Approach 2:
The patent uses composite material formulations combining PHA with other biodegradable polymers or additives to enhance structural properties while maintaining biodegradability
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-site disposal and degradation of test kits within 90-120 days, reducing waste management costs and environmental impact by eliminating the need for collection and transportation.
Implementation Method 1
the test kit may be disposed of by burying the test kit in the ground after use so that it decomposes over time
Data Source
AI summary
A biodegradable test kit and a method for making a biodegradable test kit. The biodegradable test kit includes a first molded body section and a second molded body section configured to be attached to the first molded body section for holding a test strip between the first molded body section and second molded body section, wherein the first and second molded body sections comprise from about 50 to about 99.5 weight percent poly hydroxyalkanoate.