Nanomaterial effects on C. elegans lifespan

Nanomaterial: MWNT-15-20: Multi-walled carbon nanotubes
Concentration: 2.08 µg/cm² (dispersant: Tannic acid).
Control: Tannic acid (3.333 µg/mL Agar)
Test Method

Trial 1
  Worm lifespan
average (normalized)
S.D. n p value
(LogRank test)
Control 1 0.3 439 -
Nanomaterial 0.73 0.1 61 1.0e-14
Trial 2
  Worm lifespan
average (normalized)
S.D. n p value
(LogRank test)
Control 1 0.18 86 -
Nanomaterial 0.81 0.21 81 3.1e-8
Trial 3
  Worm lifespan
average (normalized)
S.D. n p value
(LogRank test)
Control 1 0.36 134 -
Nanomaterial 0.91 0.23 63 0.0074
Trial 4
  Worm lifespan
average (normalized)
S.D. n p value
(LogRank test)
Control 1 0.32 1555 -
Nanomaterial 0.79 0.24 42 1.4e-7