A stick-on gel for plants could one day offer a simple, safe and targeted way to treat diseases and pests. Engineers at the University of California San Diego have developed an adhesive gel that can be loaded with substances, such as small molecule drugs or nanoparticles, and applied directly onto a plant to deliver those materials into its tissues. In tests, a gel loaded with antibiotics cleared a bacterial infection in a plant within about 48 hours.

A stick-on gel for plants could one day offer a simple, safe and targeted way to treat diseases and pests. Engineers at the University of California San Diego have developed an adhesive gel that can be loaded with substances, such as small molecule drugs or nanoparticles, and applied directly onto a plant to deliver those materials into its tissues. In tests, a gel loaded with antibiotics cleared a bacterial infection in a plant within about 48 hours.

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