Adhesion Peptide‐Functionalized Biobased Microgels for Controlled Delivery of Pesticides

Author:

Yayci Abdulkadir1ORCID,Sassmann Tim21ORCID,Boes Alexander1ORCID,Jakob Felix1ORCID,Töpel Alexander21ORCID,Loreth Anne3,Rauch Carolin3ORCID,Pich Andrij21ORCID,Schwaneberg Ulrich41ORCID

Affiliation:

1. DWI - Leibniz-Institute for Interactive Materials Forckenbeckstrasse 50 52056 Aachen Germany

2. Institute of Technical and Macromolecular Chemistry RWTH Aachen University Worringerweg 2 52074 Aachen Germany

3. Julius-Kühn-Institute Institute for Plant Protection in Fruit Crops and Viticulture Geilweilerhof 76833 Siebeldingen Germany

4. Institute of Biotechnology RWTH Aachen University Worringerweg 3 52074 Aachen Germany

Abstract

AbstractWidespread use of plant protection agents in agriculture is a major cause of pollution. Apart from active ingredients, the environmental impact of auxiliary synthetic polymers should be minimized if they are highly persistent. An alternative to synthetic polymers is the use of natural polysaccharides, which are abundant and biodegradable. In this study, we explore pectin microgels functionalized with anchor peptides (P‐MAPs) to be used as an alternative biobased pesticide delivery system. Using copper as the active ingredient, P‐MAPs effectively prevented infection of grapevine plants with downy mildew under semi‐field conditions on par with commercial copper pesticides. By using anchor peptides, the microgels tightly bind to the leaf surface, exhibiting excellent rain fastness and prolonged fungicidal activity. Finally, P‐MAPs are shown to be easily degradable by enzymes found in nature, demonstrating their negligible long‐term impact on the environment.

Funder

Bundesministerium für Bildung und Forschung

Bundesministerium für Ernährung und Landwirtschaft

Deutsche Forschungsgemeinschaft

Leibniz-Gemeinschaft

Ministerium für Wirtschaft, Innovation, Digitalisierung und Energie des Landes Nordrhein-Westfalen

Publisher

Wiley

Reference68 articles.

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