Nanomaterial effects on C. elegans lifespan

Nanomaterial: MWNT-15-5: 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 0.89 0.18 212 9.9e-12
Trial 2
  Worm lifespan
average (normalized)
S.D. n p value
(LogRank test)
Control 1 0.32 1555 -
Nanomaterial 1 0.27 69 0.36
Trial 3
  Worm lifespan
average (normalized)
S.D. n p value
(LogRank test)
Control 1 0.33 893 -
Nanomaterial 1.01 0.22 117 0.20