carbon quantum dots from organic waste as a pest repellant

·         Scientists developed carbon quantum dots from biomass waste that repel adult sweet potato whiteflies.

·         The dots were made from wood, plant, and food waste for sustainable quantum dot applications.

Quantum dots are tiny artificial nanoparticles, usually 1 to 9 nanometers wide. Quantum confinement gives them distinct electronic and light-emitting properties based on their composition, size, and shape.

Repellents offer an alternative by discouraging pests rather than killing them, which may reduce resistance and residual toxicity.

Repellents include synthetic and naturally derived ingredients, with natural options preferred for safety and environmental reasons.

Because the materials are low-cost waste and the process is industrially feasible, these eco-friendly repellents could be cheaper and potentially safer than petroleum-derived synthetic products, though rigorous safety testing is still needed.

Scientists do not yet know why biomass-derived quantum dots repel insects. Possible explanations include cell and DNA damage, light emission at disliked wavelengths, or photocatalytic effects under sunlight.

Quantum-dot pest repellents could benefit pest control.

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