Copper Oxide Nanoparticles via Rhatany Root Extract

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Solution Overview

Problem

Conventional methods for synthesizing copper oxide nanoparticles are often toxic, uneconomical, and environmentally unfriendly, lacking a green and economical alternative for producing effective nanoparticles with novel properties.

Innovation Solution

Copper oxide nanoparticles are synthesized using Rhatany root extract by preparing an aqueous extract from powdered Rhatany roots, mixing it with copper sulfate, precipitating with sodium hydroxide, and calcining the resulting precipitate to produce nanoparticles effective in degrading wastewater dyes and exhibiting antibacterial and anticancer properties.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If conventional techniques are used to prepare copper oxide nanoparticles, then the nanoparticles can be produced, but toxic chemicals are employed and the process is not environmentally friendly

Engineering Contradiction:
Improvetoxicity of chemicalsVSAvoidsimplicity of synthesis method
Core Design Contradiction:
Object-affected harmful factorsVSEase of manufacture

Solution Approach 1:

Plant extracts serve as intermediary substances that replace toxic chemicals in the synthesis process. The extract contains natural reducing agents that convert copper ions to copper oxide nanoparticles without requiring hazardous chemicals, thus eliminating toxicity while maintaining synthesis effectiveness

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The invention uses inexpensive plant extracts as disposable reagents that can be easily obtained from natural sources. These extracts replace expensive and toxic chemical reagents, providing a cost-effective and environmentally friendly alternative that does not require complex purification or disposal procedures

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

2Ease of manufacture

If conventional techniques are used to prepare copper oxide nanoparticles, then the nanoparticles can be produced, but the process is uneconomical

Engineering Contradiction:
Improvecost-effectivenessVSAvoidsynthesis efficiency
Core Design Contradiction:
Ease of manufactureVSProductivity

Solution Approach 1:

The invention employs cheap plant extracts as reagents instead of expensive chemical precursors. These natural extracts are readily available, inexpensive to obtain, and effective in producing copper oxide nanoparticles, thereby improving the economic viability of the synthesis process without sacrificing productivity

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

Solution Approach 2:

Plant extracts contain natural reducing agents and stabilizing compounds that perform multiple functions simultaneously - reducing metal ions to nanoparticles and preventing aggregation. This self-service capability eliminates the need for additional reagents or complex process steps, improving both cost-effectiveness and synthesis efficiency

Inventive Principle:
Principle #25Self-service

3Ease of manufacture

If conventional techniques are used to prepare copper oxide nanoparticles, then the nanoparticles can be produced, but the methodology is complicated

Engineering Contradiction:
Improvesimplicity of processVSAvoidcontrol over nanoparticle properties
Core Design Contradiction:
Ease of manufactureVSManufacturing precision

Solution Approach 1:

Plant extracts act as multifunctional intermediaries that simplify the synthesis process. The natural compounds in the extract simultaneously perform reduction, stabilization, and size control functions, eliminating the need for multiple separate steps and complex parameter adjustments required in conventional methods

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The use of simple, inexpensive plant extracts as disposable reagents replaces complex chemical systems requiring precise control of multiple parameters. The natural variability in plant extracts is actually advantageous, providing a range of nanoparticle properties without requiring sophisticated process control

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

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 resulting nanoparticles demonstrate high degradation efficiency of wastewater dyes, significant antibacterial activity, and anticancer effects, showcasing a green and economical synthesis method that avoids toxic chemicals and enhances environmental sustainability.

Implementation Method 1

there has been increased interest in developing methods of using plant extracts to produce nanoparticles by oxidation or reduction of transition metals or heavy metals

Methodology Applied
Scientific EffectReduction: Reduction

Implementation Method 2

adding 1 M sodium hydroxide dropwise to the mixture to precipitate CuO

Methodology Applied
Scientific EffectPrecipitation: Precipitation

Implementation Method 3

dried, and calcined at 400° C. for 4 hours to obtain the copper oxide nanoparticles

Methodology Applied
Scientific EffectCalcination: Heat Treatment

Data Source

PatentUS11643334B2Copper oxide nanoparticles synthesized using <i>Rhatany </i>root extract
Publication Date: 2023.05.09 KING SAUD UNIVERSITY
  • US11643334B2 patent drawing
  • US11643334B2 patent drawing
  • US11643334B2 patent drawing

AI summary

The copper oxide nanoparticles synthesized using Rhatany root extract involves preparing the Rhatany root extract by adding powdered Rhatany roots to boiling water, allowing the mixture to soak overnight, and removing any solid residue by filtering to obtain the aqueous extract. The copper oxide nanoparticles are prepared by mixing equal volumes of the aqueous Rhatany root extract and 0.1 M aqueous copper sulfate, heating the mixture at 80° C. for 40 minutes, and adding 1 M sodium hydroxide dropwise to the mixture to precipitate CuO. The precipitate is removed by centrifuge, washed with ethanol, dried, and calcined at 400° C. for 4 hours to obtain the copper oxide nanoparticles. The resulting nanoparticles proved effective in degrading wastewater dyes, showed anticancer activity against human cervical cancer by cell viability assay, and showed antibacterial activity against various strains of bacteria by agar diffusion.