Currently, the widespread use of TiO2 and ZrO2 nanoparticles (NPs) in various industries poses a risk in terms of their potential toxicity. A number of experimental studies provide evidence of the ...toxic effect of TiO2 and ZrO2 NPs on biological objects. In order to supplement the level of knowledge and assess the risks of toxicity and danger of TiO2 and ZrO2 NPs, we decided to conduct a comprehensive experiment to study the embryonic toxicity of TiO2 and ZrO2 NPs in pregnant rats. For the experiment, mongrel white rats during pregnancy received aqueous dispersions of powders of TiO2 and ZrO2 NPs at a dose of 100 mg/kg/day. To characterize the effect of TiO2 and ZrO2 NPs on females and the postnatal ontogenesis of offspring, a complex of physiological and biochemical research methods was used. The results of the experiment showed that TiO2 NPs as ZrO2 NPs (100 mg/kg per os) cause few shifts of similar orientation in the maternal body. Neither TiO2 NPs nor ZrO2 NPs have an embryonic and teratogenic effect on the offspring in utero, but both modify its postnatal development.
Abstract
The article explores the history of breeding hogweed Sosnovsky “Severyanin”, its cultivation for preparing silage and feeding cattle in the Soviet Union, the reasons for the refusal to grow ...it and its rapid spread in many regions of Russia, its capture of free spaces and the displacement of other plants. The scale of advancement of cow parsnip has become threatening in the European part of the country. As a result, it was deleted from the Russian State Register of Breeding Achievements and classified as a weed. The article emphasizes that an active fight against wild-growing hogweed is currently being carried out using various methods and means. But it does not give significant results. Since the measures taken to eradicate the hogweed turned out to be untenable, the question arises: what to do with Sosnowsky’s hogweed? The article proposes to solve this problem by cultivating it, mowing it and producing biofuel from it. The potential of hogweed as a useful plant is revealed, the technological scheme of its processing is given. The most important requirement is the creation of a closed, environmentally friendly production in order to prevent the uncontrolled spread of hogweed and protect people from skin burns caused by oils contained in it. The article formulates the tasks that consist in using Sosnowsky’s hogweed in solving the energy problem.
Currently, the widespread use of TiO
and ZrO
nanoparticles (NPs) in various industries poses a risk in terms of their potential toxicity. A number of experimental studies provide evidence of the ...toxic effect of TiO
and ZrO
NPs on biological objects. In order to supplement the level of knowledge and assess the risks of toxicity and danger of TiO
and ZrO
NPs, we decided to conduct a comprehensive experiment to study the embryonic toxicity of TiO
and ZrO
NPs in pregnant rats. For the experiment, mongrel white rats during pregnancy received aqueous dispersions of powders of TiO
and ZrO
NPs at a dose of 100 mg/kg/day. To characterize the effect of TiO
and ZrO
NPs on females and the postnatal ontogenesis of offspring, a complex of physiological and biochemical research methods was used. The results of the experiment showed that TiO
NPs as ZrO
NPs (100 mg/kg per os) cause few shifts of similar orientation in the maternal body. Neither TiO
NPs nor ZrO
NPs have an embryonic and teratogenic effect on the offspring in utero, but both modify its postnatal development.
Currently, the widespread use of TiOsub.2 and ZrOsub.2 nanoparticles (NPs) in various industries poses a risk in terms of their potential toxicity. A number of experimental studies provide evidence ...of the toxic effect of TiOsub.2 and ZrOsub.2 NPs on biological objects. In order to supplement the level of knowledge and assess the risks of toxicity and danger of TiOsub.2 and ZrOsub.2 NPs, we decided to conduct a comprehensive experiment to study the embryonic toxicity of TiOsub.2 and ZrOsub.2 NPs in pregnant rats. For the experiment, mongrel white rats during pregnancy received aqueous dispersions of powders of TiOsub.2 and ZrOsub.2 NPs at a dose of 100 mg/kg/day. To characterize the effect of TiOsub.2 and ZrOsub.2 NPs on females and the postnatal ontogenesis of offspring, a complex of physiological and biochemical research methods was used. The results of the experiment showed that TiOsub.2 NPs as ZrOsub.2 NPs (100 mg/kg per os) cause few shifts of similar orientation in the maternal body. Neither TiOsub.2 NPs nor ZrOsub.2 NPs have an embryonic and teratogenic effect on the offspring in utero, but both modify its postnatal development.
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