Nanomaterial effects on C. elegans body size

Nanomaterial: MWNT-30-5: Multi-walled carbon nanotubes
Concentration: 2.08 µg/cm² (dispersant: Tannic acid).
Control: Tannic acid (6.667 µg/mL Agar)
Test Method

Trial 1
  Worm length
average (normalized)
S.D. n p value
(Student's t-test)
Control 1 0.06 140 -
Nanomaterial 0.98 0.04 37 0.0097
Trial 2
  Worm length
average (normalized)
S.D. n p value
(Student's t-test)
Control 1 0.07 176 -
Nanomaterial 0.88 0.15 32 0.000067
Trial 3
  Worm length
average (normalized)
S.D. n p value
(Student's t-test)
Control 1 0.09 246 -
Nanomaterial 0.98 0.1 62 0.22