Nanomaterial effects on C. elegans lifespan

Nanomaterial: CeO2: Cerium oxide nanopowder
Concentration: 0.21 µg/cm² (dispersant: DI water).
Control: DI Water
Test Method

Trial 1
  Worm lifespan
average (normalized)
S.D. n p value
(LogRank test)
Control 1 0.29 1564 -
Nanomaterial 1.03 0.22 50 0.97
Trial 2
  Worm lifespan
average (normalized)
S.D. n p value
(LogRank test)
Control 1 0.31 1090 -
Nanomaterial 1.1 0.37 117 0.00019