Nanomaterial effects on C. elegans lifespan

Nanomaterial: Graphene
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 0.9 0.28 97 0.0012
Trial 2
  Worm lifespan
average (normalized)
S.D. n p value
(LogRank test)
Control 1 0.36 134 -
Nanomaterial 0.9 0.26 60 0.024
Trial 3
  Worm lifespan
average (normalized)
S.D. n p value
(LogRank test)
Control 1 0.32 1555 -
Nanomaterial 1.05 0.31 61 0.32
Trial 4
  Worm lifespan
average (normalized)
S.D. n p value
(LogRank test)
Control 1 0.33 893 -
Nanomaterial 1.06 0.26 74 0.83