PURIFIED POLLEN PARTICLES AND USE THEREOF FOR ADMINISTERING NANOSYSTEMS
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Abstract
The present invention relates to a purified pollen particle that retains its intine and of exine layer and comprises nanosystems, to compositions including same, and to uses thereof.
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Citations
55 Claims
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1-35. -35. (canceled)
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36. A delivery system comprising:
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a purified pollen particle comprising an intine layer and an exine layer, wherein said purified pollen particle lacks a lipid layer (pollenkitt); and a colloidal particle. - View Dependent Claims (37, 38, 39, 40, 41, 42, 43, 44, 50, 51, 52, 53, 54, 55)
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45. A process for the preparation of a purified pollen particle, comprising the steps of:
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(a) providing a pollen particle; (b) washing the pollen particle in a buffered aqueous medium at a pH between 4.5 and 9; and (c) washing the pollen particle with an organic solvent, to thereby obtain a purified pollen particle comprising the intine layer and the exine layer, but lacking the lipid layer (pollenkitt), wherein step (c) can be performed before or after step (b). - View Dependent Claims (46, 47, 48, 49)
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Specification