Nanomaterial effects on C. elegans lifespan

Nanomaterial: SiO2
Concentration: 2.08 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 0.28 160 -
Nanomaterial 0.88 0.33 56 0.043
Trial 2
  Worm lifespan
average (normalized)
S.D. n p value
(LogRank test)
Control 1 0.29 1564 -
Nanomaterial 1.09 0.18 46 0.32
Trial 3
  Worm lifespan
average (normalized)
S.D. n p value
(LogRank test)
Control 1 0.31 1090 -
Nanomaterial 1.04 0.27 93 0.66