New Non Phyto‐ and Eco‐Toxic Alumina‐Stabilized Silver and Praseodymium Nanoparticles

Abstract

In the present study, we examined how the active aluminum nano‐oxide in the gamma form used as a neutral carrier for the nanoparticles of various metals (as Ag, Pr) affected their toxic behavior. Our experiments have shown that exposure to metal nanoparticles can be reduced by binding the nanoparticles to alumina nanoparticles and the aluminum nano‐oxide is suitable to function as the nano‐stabilizer for the Ag and Pr nanoparticles. We have managed to manufacture new alumina‐stabilized silver and praseodymium nanoparticles using dry sol‐gel method that are not phyto‐ and eco‐toxic.

The ecotoxicity of graphene family materials: current status, knowledge gaps and future needs

“…Synthetic nanomaterials are released into the environment with industrial and household wastes, and their release can be expected to increase constantly with their increasing use in industry and increasing share in various consumer products (Jastrzębska et al 2013a). The functioning of natural ecosystems such as water, soil or air and changes in their bio-composition may be seriously disturbed as a result of penetration of GFMs.…”

“…Synthetic nanoparticles are released into the environment with industrial and household wastes, and their release can be expected to increase constantly with increasing use of nanoparticles in industry and their increasing share in various consumer products (Jastrzębska et al 2013a).…”

Selective antibacterial effects of mixed ZnMgO nanoparticles

“…Nano-Ag 2 O 3 of 50–80 nm size penetrates fibroblast cells without affecting cell viability or inducing apoptosis. Similarly, when nano-Ag 2 O 3 was used to stabilize nano-Ag or nano-Pr, no phyto- or eco-toxicity was observed (Jastrzębska et al 2012). Our cytotoxic analysis suggests no toxic effect of ZnMgO, and thus potentially its good biocompatibility.…”

Influence of bacteria adsorption on zeta potential of Al2O3 and Al2O3/Ag nanoparticles in electrolyte and drinking water environment studied by means of zeta potential

“…Many investigation results were reported in the literature concerning bioactivity of the nanomaterials [29][30][31][32]. They have shown that metal oxide nanoparticles were very effective biocides against gram-positive and gram-negative bacteria.…”

“…They have shown that metal oxide nanoparticles were very effective biocides against gram-positive and gram-negative bacteria. Many research groups were exploring the different metal oxide nanoparticles for example: aluminum oxide (Al 2 O 3 ) [31,32], iron oxide (Fe 2 O 3 ) [23], titanium oxide (TiO 2 ) [6,17,[33][34][35], zinc oxide (ZnO) [36,37], copper oxide (CuO) [37,38], magnesium oxide (MgO) [39] tin oxide (SnO 2 ) [37], cerium oxide (CeO 2 ) [40] lanthanum oxide (La 2 O 3 ) [37], and zeolites [35] toxicity against bacteria. Most of the tested nanoparticles exhibited relative bactericidal properties against E. coli which is already widely used as a model strain in various toxicity testing.…”