chitosan-graft-polyethylenimine (chi-g-pei) copolymer has been used for theimprovement of low transfection efficiency of chitosan. the present study aims to test thepulmonary toxicity and efficiency of chi-g-pei as an aerosol gene carrier. mice were exposedto aerosol containing green-fluorescent protein (gfp)-polyethylenimine (pei) or gfp-chig-pei complexes for 30 min during the development of ...

Chitosan-graft-polyethylenimine (CHI-g-PEI) copolymer has been used for theimprovement of low transfection efficiency of chitosan. The present study aims to test thepulmonary toxicity and efficiency of CHI-g-PEI as an aerosol gene carrier. Mice were exposedto aerosol containing green-fluorescent protein (GFP)-polyethylenimine (PEI) or GFP-CHIg-PEI complexes for 30 min during the development of ...

New extension of nanoparticles used in the last two decades and hence, entrance of them to industrialand non-industrial sewage necessitate study of probable effects of these materials in aquatic ecosystems.This research was performed in order to determine the toxicity effect of silica dioxide (SiO2</spa...

The toxic effects of Lindane (γ-BHC) on Microcystis aeruginosa were studied under lab culture conditions. Total protein levels, as well malondialdehyde (MDA) levels and superoxide dismutase (SOD) enzyme activity, in algal cells, determined after exposure to different concentrations Lindane. bioaccumulation Lindane, the influence pH dissolved organic matter (DOM) effects, was also evaluated cell...

Every second, 0.8 litres of sunscreen enters ocean waters, which corresponds to the release 25.000 tons per year. UV filters may present substantial threats marine fauna and flora have an impact similar that other contaminants. Coral reefs play a major role in biodiversity, some publications suggest they are threatened by into environment, should cause bleaching. The aim this study was evaluate...

In Korea, for heavy metal-contaminated soil, there are insufficient basic data as well field application cases soil washing. This study was conducted to suggest the significant factors and optimal operation conditions maximum metal removal efficiency. Five types of washing solution [acid (HCl), citric acid, oxalic EDTA, CaCl2], time (10–360 min), solid-solution ratio (1:2–1:100) were selected o...

El presente estudio tuvo como objetivo investigar los efectos de metales pesados Níquel (Ni), Zinc (Zn) y Cadmio (Cd) sobre diferentes parámetros morfométricos pigmentos la macrófita acuática Lemna gibba. Ni produjo una disminución del área ejes longitudinal transversal las frondes, a partir 0.37 mg/L 0.92 respectivamente. Zn en estos concentraciones exposición 4.6 mg/L. Cd, por su parte, ejerc...

Due to the potential hazard of diclofenac on aquatic organisms and lack higher-tier ecotoxicological studies, a long-term freshwater mesocosm experiment was set up study effects this substance primary producers consumers at environmentally realistic nominal concentrations 0.1, 1 10 µg/L (average effective 0.041, 0.44 3.82 µg/L). During six-month exposure period, biovolume two macrophyte species...