Chromium-Substituted Copper Ferrite Nanoparticles With Lower MIC
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
There is a lack of effective methods for preventing or reducing microbial growth on surfaces using spinel ferrite nanoparticles, particularly with chromium-substituted copper ferrite, which are not well-documented in existing literature.
Innovation Solution
A method involving the synthesis of spinel ferrite nanoparticles with a chromium-substituted copper ferrite formula (CuCrxFe2-xO4) is developed, where x is greater than 0 and smaller than 2, by mixing copper(II) salt, chromium(III) salt, iron(III) salt, and an inorganic base, followed by heating and drying to produce nanoparticles with specific properties for surface application.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If chromium substitution is applied in copper ferrite nanoparticles, then antimicrobial activity is improved, but synthesis complexity increases
Solution Approach 1:
The patent applies parameter changes by systematically varying the chromium substitution level (x in CuCrxFe2-xO4) to optimize antimicrobial activity. Different chromium concentrations are tested to find the optimal balance between activity enhancement and synthesis complexity, demonstrating how parameter optimization resolves the technical contradiction.
Solution Approach 2:
The patent creates composite spinel ferrite nanoparticles with chromium substitution in the copper ferrite matrix. This composite approach combines the benefits of copper ferrite's magnetic properties with chromium's antimicrobial effects, achieving enhanced reliability while managing synthesis complexity through a structured composite material design.
2Reliability
If chromium-substituted copper ferrite nanoparticles are synthesized, then minimum inhibitory concentration is reduced, but manufacturing precision requirements increase
Solution Approach 1:
The patent uses parameter changes by controlling synthesis conditions (temperature, pH, precursor ratios) to achieve precise nanoparticle formation with desired chromium substitution levels. This systematic parameter optimization allows reduction of minimum inhibitory concentration while managing the increasing manufacturing precision requirements through methodical condition control.
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 synthesized nanoparticles effectively inhibit microbial growth on surfaces, demonstrating antibacterial activity against gram-negative bacteria like Escherichia coli, with reduced minimum inhibitory and bactericidal concentrations compared to similar nanoparticles lacking chromium substitution.
Implementation Method 1
The synthesized nanoparticles effectively inhibit microbial growth on surfaces, demonstrating antibacterial activity against gram-negative bacteria like Escherichia coli
Implementation Method 2
A method involving the synthesis of spinel ferrite nanoparticles with a chromium-substituted copper ferrite formula (CuCrxFe2-xO4) is developed, by mixing copper(II) salt, chromium(III) salt, iron(III) salt, and an inorganic base, followed by heating and drying to produce nanoparticles
Data Source
AI summary
Methods of forming spinel ferrite nanoparticles containing a chromium-substituted copper ferrite as well as properties (e.g. particle size, crystallite size, pore size, surface area) of these spinel ferrite nanoparticles are described. Methods of preventing or reducing microbe growth on a surface by applying these spinel ferrite nanoparticles onto the surface in the form of a suspension or an antimicrobial product are also described.