Method of delivery of bio-active agents to plant cells by using nano-sized materials as carriers

摘要

A method for regulating properties of a plant, includes: providing a nanoagent having at least one nanocomposite; and delivering the nanoagent to the plant. The nanocomposite has at least one gold nanorod, a silver layer coated on an outer surface of the gold nanorod, a pegylated layer coated on the silver layer, and an active layer conjugated to the pegylated layer. The silver layer includes silver nanoparticles. The pegylated layer includes at least one of thiolated polyethylene glycol (HS-PEG), thiolated polyethylene glycol acid (HS-PEG-COOH) and HS-PEG-NHx. The active layer includes at least one bio-active agent configured to interact with the plant. The bio-active agent can be 2,4-dichlorophenoxyacetic acid (2,4-D).