Trace-Element Ce-Mo Oxide Ceramic for Antibacterial and Antiviral Activity
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Solution Overview
Problem
Existing studies have not explored the influence of elements other than cerium and molybdenum on the antibacterial and antiviral properties of Ce—Mo-based composite oxide ceramics.
Innovation Solution
Incorporating trace elements such as Al, Zr, or Si into the Ce—Mo-based composite oxide ceramic, specifically in a crystalline phase, enhances the elution of metal ions, thereby improving the antibacterial and antiviral properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If trace elements (Al, Zr, Si) are added to Ce-Mo-based composite oxide ceramic, then metal ion elution increases and antibacterial/antiviral properties improve, but material composition complexity increases
Solution Approach 1:
The invention changes the compositional parameters of the Ce-Mo-based composite oxide ceramic by introducing trace elements (Al, Zr, or Si) at controlled concentrations (270 ppm or larger). This parameter modification enhances metal ion elution properties, thereby improving antibacterial and antiviral effectiveness without requiring fundamental changes to the base material structure.
Solution Approach 2:
The invention creates a composite material system by combining Ce-Mo-based composite oxide ceramic with trace elements (Al, Zr, or Si). This composite approach leverages the synergistic effects of multiple elements, where the trace elements modify the host ceramic structure to enhance ion elution and biological activity while maintaining the fundamental ceramic matrix.
2Reliability
If trace elements (Al, Zr, Si) are added to Ce-Mo-based composite oxide ceramic, then metal ion elution increases and antiviral property improves, but manufacturing process complexity increases
Solution Approach 1:
The invention modifies manufacturing parameters by specifying trace element concentrations (270 ppm or larger) and incorporating them during the ceramic synthesis process. This approach integrates the functional enhancement into the existing manufacturing workflow rather than requiring separate post-processing steps.
Solution Approach 2:
The trace elements are incorporated into the ceramic structure during the initial synthesis and sintering processes, rather than being added as a separate post-manufacturing step. This preliminary incorporation ensures uniform distribution and activates the antiviral properties from the outset, streamlining the overall manufacturing process.
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 addition of trace elements like Al, Zr, or Si results in a Ce—Mo-based composite oxide ceramic with enhanced antibacterial and antiviral properties, demonstrated by a higher virus reduction rate and decreased pH in water immersion tests.
Implementation Method 1
when a Ce—Mo-based composite oxide ceramic containing a composite oxide of cerium (Ce) and molybdenum (Mo) contains at least one type of trace element selected from the group consisting of Al, Zr, and Si, metal ions become easy to elute so that an excellent antibacterial property and an excellent antiviral property can be exhibited
Data Source
AI summary
A Ce—Mo-based composite oxide ceramic contains: cerium; molybdenum; and at least one type of trace element selected from the group consisting of Al, Zr, and Si.