Publications by authors named "E I Terenteva"

According to the World Health Organization, it is estimated that by 2050, drug-resistant infections could cause up to 10 million deaths annually. Therefore, finding a new generation of antibiotics is crucial. Natural compounds from endophytic fungi are considered a potential source of new-generation antibiotics.

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Article Synopsis
  • Two sesquiterpene lactones, 1 ,10,3,4-diepoxyguai-5,6,7-11(13)-en-6,12-olide and hanphyllin, were isolated from the plant Kovalevsk and characterized using advanced techniques like HR-ESI-MS, IR, and NMR.
  • The X-ray diffraction analysis provided precise spatial structures of both compounds.
  • The chloroform fraction containing these compounds showed stronger cytotoxic effects on HeLa (89.7%) and HEp-2 (63.0%) cancer cells compared to individual compounds and cisplatin, while being less toxic to liver cells.
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One of the possible ways for using silver nanoparticles (AgNPs) in spectrophotometry is their application for the determination of oxidizing agents, based on oxidative destruction of these nanoobjects. This process depends on the structure of AgNPs surface layer, which is essentially affected by the chosen stabilizer. To assess influence of the nanoparticle stabilizer and the nature of the analyte, possibilities of AgNPs covered with stabilizers of three types (citrate, polyvinylpyrrolidone, and polyhexamethylene guanidinium) for the spectrophotometric determination of hydrogen peroxide and differently substituted organic peroxides were studied.

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Positively charged polyhexamethylene guanidine hydrochloride-stabilized silver nanoparticles (PHMG-AgNPs) were prepared and applied as a colorimetric probe for single-step determination of pyrophosphate and sulfate. The approach is based on the nanoparticles aggregation leading to change in their absorption spectra and color of the solution. Due to both electrostatic and steric stabilization these nanoparticles show decreased sensitivity relatively to many common anions, which allows for simple and rapid direct single-step determination of pyrophosphate and sulfate.

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This work reports the complete plastid (pt) DNA sequence of Seseli montanum L. of the Apiaceae family, determined using next-generation sequencing technology. The complete genome sequence has been deposited in GenBank with accession No.

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