Cellulose Nanofiber Plant Growth Agent for Insect Control
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Solution Overview
Problem
Conventional spray agents have high environmental burdens and potential safety risks, particularly for infants, and lack effective insecticidal efficacy.
Innovation Solution
A plant growth promoting agent comprising cellulose nanofibers with an average thickness of 3 to 200 nm, prepared by fibrillating cellulose using a highly pressurized water jet, which exhibits insecticidal efficacy and plant growth promotion without the need for additional adhesives or surfactants, and is safe for domestic use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional spray agents are used, then insecticidal efficacy is achieved, but environmental burden increases and safety risks arise
Solution Approach 1:
The patent uses cellulose nanofibers as a biodegradable, naturally decomposable alternative to persistent chemical insecticides. The nanofibers provide temporary physical occlusion of insect spiracles without leaving long-term environmental contamination, aligning with the principle of using short-living, disposable materials that fulfill their function and then naturally decompose.
Solution Approach 2:
The patent replaces chemical toxicological mechanisms with a physical mechanical mechanism. Cellulose nanofibers physically block and occlude insect spiracles through mechanical means rather than chemical poisoning, substituting a mechanical action (physical occlusion) for a chemical system (toxic insecticides).
2Reliability
If natural enemy mites are sprinkled for pest control, then predation effect is achieved, but application frequency requires multiple treatments over months
Solution Approach 1:
The cellulose nanofiber spray provides continuous protective action by forming a persistent physical barrier on plant surfaces that continuously occludes insect spiracles. Unlike periodic biological control applications, the nanofiber coating maintains its insecticidal function continuously until degradation, eliminating the need for repeated monthly applications.
3Object-affected harmful factors
If cellulose nanofibers are used as spray agent, then low environmental burden and high safety are achieved, but insecticidal efficacy must be maintained
Solution Approach 1:
The patent achieves effective insect control through parameter optimization of the cellulose nanofibers, specifically controlling fiber diameter (3-200 nm), crystallinity (30-70%), and surface properties. These parameter changes enable the nanofibers to effectively occlude insect spiracles while maintaining biodegradability and low environmental impact.
Solution Approach 2:
The patent creates a composite functional material by combining cellulose nanofibers with specific physical and chemical properties. The composite structure integrates the biodegradability of cellulose with enhanced mechanical properties and surface characteristics that improve insecticidal efficacy through optimized spiracle occlusion.
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 cellulose nanofiber-based agent demonstrates excellent insecticidal activity with low environmental impact and high safety, promoting plant growth while effectively controlling mites and other insect pests without harming the environment.
Implementation Method 1
cellulose nanofibers that have an average thickness of 3 to 200 nm and that are prepared by fibrillating cellulose by means of a highly pressurized water jet
Data Source
AI summary
A plant growth promoting agent which contains cellulose nanofibers and which is directly or indirectly applied to, sprinkled on, or sprayed on a plant. By using cellulose nanofibers having a specific average fiber diameter and a specific average fiber length, agglomeration of the cellulose fibers is thereby suppressed. This enables efficient insecticidal effect to be realized, wherein the insecticidally active ingredient is a non-chemosynthetic material.