Environmental Engineering Reference
In-Depth Information
table . (Continued)
effects of nanomaterials on different species of aquatic organisms
species
size or diameter
exposure or dose
endpoint(s)
effect(s)
Commentary
Ref.
Rainbow.trout.
(
Oncorhynchus
mykiss
)
<5.nm.with.SDS;.50-
100.nm.“strands”.
without.SDS
0,.0.1,.0.25,.0.5.mg/L.
SWCNT.for.up.to.10.
days
Gill.ventilation.rate;.
gill.pathology;.gill.
mucus.secretion;.
blood.chemistry;.
tissue.metals.
No.change.in.tissue.metal.
concentrations.or.blood.
chemistry..Dose-dependent.
rise.in.gill.ventilation.rate,.
gill.pathology,.and.gill.
mucus.secretion..Increase.in.
GSH.in.gills.and.liver.
Conclude.SWCNT.are.
respiratory.toxicant.to.trout,.
but.stock.solutions.of.SWCNT.
dispersed.by.either.sonication.
or.SDS,.so.exposure.
concentrations.may.not.be.
environmentally.relevant.
[10]
Zebraish.(
Danio
rerio
.-.embryos)
MWCNT.not.cited..
Colloidal.nanosilver.
(5-20.nm)
MWCNT.(0.001-10.
mg/L.(series))..
Colloidal.Silver.(1,.
10,.100,.1000,.5000.
g/L)
Quantitative.RT-PCR.
to.analyze.
expression.patterns.
of.8.separate.
detoxiication.genes.
Nanosilver.had.“clear.effects.
on.the.expression.of.most.
genes.in.a.dose-dependent.
manner.”.Changes.induced.
by.MWCNTs.“were.much.
lower,”.suggesting.a.reduced.
toxicity.at.tested.
concentrations.
MWCNTs.were.“ground,.
suspended.in.an.aqueous.
solution.and.ultrasonicated.
for.6.hours.”.Colloidal.
nanosilver.purchased.directly.
from.Polytech.&.Net.Gmbh.
(10,000.ppm.stock.solution).
[15]
Largemouth.bass.
(
Micropterus
salmoides
)
30-100.nm
0.5-1.mg/L.BF
Lipid.peroxidation,.
protein.oxidation,.
and.total.GSH.
Increase.in.brain.lipid.
peroxidation.(but.no.dose/
response)..Slight.decrease.in.
gill.GSH.
Water.clarity.increased.in.the.
C60.dosed.aquaria,.putatively.
due.to.inhibition.of.bacteria.
[3]
