Nanomaterial effects on C. elegans body size

Nanomaterial: SWNT: Single-walled carbon nanotubes
Concentration: 0.21 µg/cm² (dispersant: Tannic acid).
Control: Tannic acid (3.333 µg/mL Agar)
Test Method

Trial 1
  Worm length
average (normalized)
S.D. n p value
(Student's t-test)
Control 1 0.07 176 -
Nanomaterial 0.91 0.1 68 6.3e-10
Trial 2
  Worm length
average (normalized)
S.D. n p value
(Student's t-test)
Control 1 0.09 246 -
Nanomaterial 0.98 0.14 66 0.33