Multi-layer true spherical chitosan encapsulation of absolute (essential) oils for use in pesticidal activity
AssigneeGroPro Corporation
InventorJeff Hill
Life of this patent
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Abstract
Some embodiments include a method of chitosan encapsulation of pesticidal active ingredients. The method includes adding a first active ingredient to a centrifuge, adding a solution containing chitosan into the centrifuge, centrifuging the chitosan-active ingredient mixture to create nanoparticle spheres of a first diameter, collecting the nanoparticle spheres of a first diameter, adding the nanoparticle spheres, a second active ingredient, and a chitosan solution into a centrifuge, and centrifuging to create nanoparticle spheres of a second diameter larger than the first diameter, and collecting the nanoparticle spheres of a second diameter.
Claims20
A method of chitosan encapsulation of pesticidal active ingredients, the method comprising:
- adding a first active ingredient to a centrifuge;
- adding a solution containing chitosan into the centrifuge;
- centrifuging the chitosan-active ingredient mixture to create nanoparticle spheres of a first diameter;
- collecting the nanoparticle spheres of a first diameter;
- adding the nanoparticle spheres, a second active ingredient, and a chitosan solution into a centrifuge, and centrifuging to create nanoparticle spheres of a second diameter larger than the first diameter;
- collecting the nanoparticle spheres of a second diameter.
A method of chitosan encapsulation of active ingredients, the method comprising:
- adding a first composition to a centrifuge, the composition including at least a first active ingredient;
- adding a solution containing chitosan into the centrifuge;
- centrifuging the chitosan-active ingredient mixture to create nanoparticle spheres of a first diameter;
- collecting the nanoparticle spheres of a first diameter;
- adding the nanoparticle spheres, a second composition including at least a second active ingredient, and a solution containing chitosan into a centrifuge, and centrifuging to create nanoparticle spheres of a second diameter larger than the first diameter;
- collecting the nanoparticle spheres of a second diameter.
A method of chitosan encapsulation of active ingredients, the method comprising:
- adding a first composition to a centrifuge, the composition including at least a first active ingredient;
- adding a solution containing chitosan into the centrifuge;
- centrifuging the chitosan-active ingredient mixture to create a first set of nanoparticle spheres including a core made from the first composition and a first layer containing chitosan;
- collecting the first set of nanoparticle spheres;
- adding the first set of nanoparticle spheres, a second composition including at least a second active ingredient, and a solution containing chitosan into a centrifuge, and centrifuging to create a second set nanoparticle spheres with a core made from the first composition, a first layer containing chitosan, a second layer made from the second composition, and a third layer containing chitosan;
- collecting the second set of nanoparticle spheres.
Dependencies are inferred from the claim text.