Engineering Irrigation Drippers with Rechargeable N-Halamine Nanoparticles for Antifouling Applications

Michal Natan, Ori Gutman, Dekel Segev, Shlomo Margel, Ehud Banin

Research output: Contribution to journalArticlepeer-review

9 Scopus citations


The increased demand for water highlights the need to utilize reclaimed water of various types. In agriculture, for example, which is considered the largest consumer of freshwater, irrigation with treated wastewater can replace much of the need for freshwater. Wastewater is generally used for irrigation through drippers, releasing small amounts of water to the crops. The contaminants found in treated wastewater increase the accumulation of fouling on the drippers, ultimately culminating in blocking of water exit. Thus, there is a crucial need to develop novel approaches to limit biofilm formation on the dripper. Here, we describe the synthesis of N-halamine-derivatized cross-linked polymethacrylamide nanoparticles (NPs) by copolymerization of the monomer methacrylamide and the cross-linker monomer N,N-methylenebisacrylamide and their subsequent embedding in the polyethylene that is used to fabricate the drippers. The newly designed drip system was activated by chlorinating the incorporated NPs and then was fully characterized. The nanofunctionalized drippers were tested in the field, showing excellent antifouling activity for at least 5 months compared to the control. In addition, the inherent recharging capacity of the antifouling NPs constitutes yet another valuable advantage of the currently reported technology.

Original languageEnglish
Pages (from-to)23584-23590
Number of pages7
JournalACS applied materials & interfaces
Issue number26
StatePublished - 3 Jul 2019

Bibliographical note

Publisher Copyright:
© 2019 American Chemical Society.


  • antifouling
  • drippers
  • irrigation
  • nanoparticles
  • recharging


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