Nanomaterial effects on C. elegans body size

Nanomaterial: MWNT-OH: Hydroxylated multi-walled carbon nanotubes
Concentration: 1 ppm (dispersant: Tannic acid).
Control: Tannic acid
Test Method

Trial 1
  Worm length
average (normalized)
S.D. n p value
(Student's t-test)
Control 1 0.15 180 -
Nanomaterial 1.13 0.09 83 9.9e-17
Trial 2
  Worm length
average (normalized)
S.D. n p value
(Student's t-test)
Control 1 0.1 407 -
Nanomaterial 0.98 0.15 108 0.12