Stopping mosquitos and red ants with polyurethane coatings made from algae oil

Larvicides play a vital role in controlling mosquitoes in their breeding sites. A study was carried out to establish the activity of polyesteramide based polyurethane coatings from algae oil against mosquitos’ larvae and red ants responsible for diseases of public health importance.

Polyesteramide based polyurethane coatings from algae oil and their larvicidal -

The polyesteramide synthesised by N, N-bis (2-hydroxy ethyl) algae oil fatty amide and ethylene diamine tetra acetic acid through condensation polymerisation. After that resin cured with MDI to obtained polyurethane coatings. Coating performance was tested.

Recommended in mosquitos practices

Larval mortality of mosquito’s larvae was observed at 12, 24 and 48 h of exposure to different weight of PU films. The efficacy of polyurethane coating films against mosquitos’ larvae (LC50 and LC90; 5.35 and 17.15 mg/mL) respectively were observed by probit analysis while the mortality of ants also observed at 2, 4, 6 and 12 h of exposure to PU coatings. Polyurethane coatings can be recommended effectively in mosquitos and ants controlling practices. The cytocompatibility study was also carried out and study shows good results.

The study is published in: Progress in Organic Coatings, Volume 107, June 2017, Pages 43–47

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