Nanomaterial effects on C. elegans lifespan

Nanomaterial: MWNT-15-5: Multi-walled carbon nanotubes
Concentration: 1.04 µg/cm² (dispersant: Tannic acid).
Control: Tannic acid (3.333 µg/mL Agar)
Date: 2013-07-14, by: Charles, Alma
Test Method

Worm survival curve.

  Worm lifespan
average (days)
S.D. n p value
(LogRank test)
Control 14.7 4.9 893 -
Nanomaterial 16.3 4.5 64 0.11

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 29 30
Control 1 14.8 13    
2 13.3 12        
3 15.3 14      
4 15 13 0            
5 13.3 13    
6 15.4 15    
7 15.5 14    
8 14.1 13        
9 14.2 13
10 15.8 16    
11 15.7 15  
12 14.5 14    
Nanomaterial 1 16.3 16 64 64