Green Synthesized Silver Nanoparticles for Red Palm Weevil Control
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Solution Overview
Problem
Current methods for synthesizing nanoparticles using plant extracts are costly, environmentally harmful, and lack controlled delivery of effective doses, compromising their therapeutic potential, especially in controlling insect infestations like the red palm weevil in date palms.
Innovation Solution
Green synthesis of silver nanoparticles using chlorophyll derivatives, where a solution of chlorophyllin is mixed with silver nitrate, heated, centrifuged, and lyophilized to produce spherical, crystalline nanoparticles with an average size of 10-40 nm, which can be applied directly to date palms without carriers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If conventional nanoparticle synthesis methods are used, then nanoparticles can be produced, but the process is costly and environmentally harmful
Solution Approach 1:
The patent converts harmful conventional synthesis methods into beneficial green chemistry approaches by using plant extracts (chlorophyll derivatives) as reducing agents. This transforms the environmental harm of traditional nanoparticle synthesis into an eco-friendly process that uses natural materials to produce the same functional nanoparticles, thereby eliminating harmful by-products and reducing manufacturing costs.
Solution Approach 2:
The patent changes the chemical parameters of the synthesis process by substituting conventional chemical reducing agents with chlorophyll derivatives. This parameter change maintains nanoparticle production capability while fundamentally altering the environmental impact and cost structure of the manufacturing process.
2Object-generated harmful factors
If plant extract methods are used for nanoparticle synthesis, then environmental friendliness is improved, but controlled delivery of effective doses is compromised
Solution Approach 1:
The patent applies local quality by functionalizing the surface of chlorophyll-derived nanoparticles with specific ligands or coatings that enable targeted delivery to pest locations. This allows the nanoparticles to concentrate at the site of action (insect body) while maintaining the environmentally friendly synthesis process, thereby achieving both ecological benignity and delivery precision.
Solution Approach 2:
The patent uses chlorophyll derivatives as intermediary substances that serve dual functions: as green reducing agents during synthesis and as carriers for controlled delivery. This intermediary approach bridges the gap between environmentally friendly synthesis and precise dose delivery by incorporating the delivery mechanism into the nanoparticle structure itself.
3Object-generated harmful factors
If chlorophyll derivatives are used as insecticides, then eco-friendly control is achieved, but bioavailability and metabolism are insufficient
Solution Approach 1:
The patent creates composite nanoparticles where chlorophyll derivatives are combined with silver or other metallic cores. This composite structure enhances bioavailability by improving the nanoparticle's ability to penetrate insect cuticles and undergo metabolism, while maintaining the eco-friendly profile of the chlorophyll-based material. The composite approach synergistically combines the environmental benefits of chlorophyll with the enhanced biological activity of metal nanoparticles.
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 method provides an eco-friendly, effective, and targeted control of insect infestations, including red palm weevils, without causing side effects to the date palms or the environment, as evidenced by the nanoparticles' spherical structure and crystalline nature, verified by UV-Vis, TEM, and XRD analysis.
Implementation Method 1
mixing a solution of chlorophyllin with a solution of silver nitrate to provide a silver solution; heating the silver solution at a temperature of about 80° C. for about 3 hours to obtain a heated solution containing silver nanoparticles
Implementation Method 2
heating the silver solution at a temperature of about 80° C. for about 3 hours to obtain a heated solution containing silver nanoparticles
Implementation Method 3
centrifuging the heated solution containing silver nanoparticles to separate initial silver nanoparticles from the heated solution
Implementation Method 4
lyophilizing the silver nanoparticles to obtain lyophilized silver nanoparticles (L-AgNPs) powder
Data Source
AI summary
Silver nanoparticles made by a green synthesis method using silver nitrate and a chlorophyll derivative, such as a chlorophyllin are provided. The thus produced silver nanoparticles can have a crystalline structure and an average particle size ranging from about 10 nm to about 40 nm. The disclosed silver nanoparticles may be useful in treating, preventing, and/or reducing insect infestation of a variety of plants, particularly date palms.