Properties of nanoparticles can impact the environment in a negative way. The surface effects of nanoparticles are both favourable and unfavourable. When they are exposed to tissues or cell of the body they get adsorbed on to their surface, thus they are highly used in medicine field for drug delivery use(). By crossing cell membrane or entering the blood stream, the nanoparticles may target other organs. Other important property is high solubility which is advantageous and reduces its toxicity but there are certain nanoparticles which do not dissolve that readily or degrade which may lead to accumulation in body or the environment ()....
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...system and the chemicals impacts on the ecosystem.
() In aquatic ecosystem along with silver nanoparticle nanocopper also damages cell membrane and DNA at cellular level. Also affects fecundity, physiology and survival of many aquatic organisms including crustaceans, mussel and many fish species. ()Nanoparticle cause damages after chronic exposure.
(8) when AgNP is present in salt water the toxicity is reduced than fresh water. The high ionic strength of Ag+ ion a link is created between the ion and anion. This will reduced the interaction of Ag+ at the gill where the cause of toxicity begins. In freshwater due to reduced anion, Ag+ ion competes with other cations for gill binding sites. Silver ion inhibits the Sodium/Potassium ATPase activity, resulting in redcuced uptake of sodium and chlorine ions. Thus Gill is the main site of acute toxic action of Silver ion.
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