Nanomaterial effects on C. elegans body size

Nanomaterial: MWNT-15-5: Multi-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 0.9 0.05 67 5.1e-23
Trial 2
  Worm length
average (normalized)
S.D. n p value
(Student's t-test)
Control 1 0.09 246 -
Nanomaterial 1.01 0.05 104 0.41