Nanomaterial effects on C. elegans lifespan

Nanomaterial: MWNT-COOH: Carboxylated multi-walled carbon nanotubes
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 1.01 0.25 198 0.73
Trial 2
  Worm lifespan
average (normalized)
S.D. n p value
(LogRank test)
Control 1 0.43 602 -
Nanomaterial 1.14 0.43 20 0.16
Trial 3
  Worm lifespan
average (normalized)
S.D. n p value
(LogRank test)
Control 1 0.36 2811 -
Nanomaterial 1.11 0.28 27 0.64