Nanomaterial effects on C. elegans lifespan

Nanomaterial: CB: Carbon Black
Concentration: 2.08 µg/cm² (dispersant: 0.0025% SDS).
Control: 0.0025% SDS
Date: 2013-07-01, by: Charles, Alma
Test Method

Worm survival curve.

  Worm lifespan
average (days)
S.D. n p value
(LogRank test)
Control 14.8 3.7 189 -
Nanomaterial 14 3.3 88 0.018

Raw Data.

  Well  Lifespan Number of living worms on each day
Avg. Median 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28
Control 1 15.5 15 0    
2 14.5 15
3 14.5 15      
Nanomaterial 1 13.9 14          
2 14.1 14