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Ð”Ð°Ð½Ð½Ð°Ñ Ñ€Ð°Ð±Ð¾Ñ‚Ð° поÑвÑщена отработке и уÑовершенÑтвованию метода моди- фикации МÐЛДИ мишени металл-аффинными Ñорбентами на оÑнове моноÑлоев Ленгмюра, Ñодержащими новые объекты иÑÑледованиÑ, такие как редкоземель- ные металлы (лантан, церий, европий, иттербий) Ð´Ð»Ñ Ñпецифичного Ð²Ñ‹Ð´ÐµÐ»ÐµÐ½Ð¸Ñ Ñ…Ð»Ð¾Ñ€Ñодержащих аддуктов белков крови. Цель работы: иÑÑледование возможноÑти модификации МÐЛДИ мишени Ñорбентами на оÑнове Ñтеаратов лантана, цериÑ, ÐµÐ²Ñ€Ð¾Ð¿Ð¸Ñ Ð¸ Ð¸Ñ‚Ñ‚ÐµÑ€Ð±Ð¸Ñ Ð´Ð»Ñ Ñпецифичной ÑкÑтракции хлорÑодержащих аддуктов белков. Задачи, которые решалиÑÑŒ в ходе иÑÑледованиÑ: 1. Модифицировать МÐЛДИ мишень металл-аффинными Ñорбентами на оÑ- нове Ñтеаратов лантана, цериÑ, ÐµÐ²Ñ€Ð¾Ð¿Ð¸Ñ Ð¸ иттербиÑ; 2. ИÑÑледовать полученные Ñорбенты Ñ Ð¸Ñпользованием различных физико- химичеÑких методов; 3. ПровеÑти металл-аффинную ÑкÑтракцию модифицированных пептидов глобина из его гидролизата. Работа была проведена на базе ФГБУРИТ ФМБРРоÑÑии. Был доказан Ñо- Ñтав каждого из полученных Ñорбентов, проведено иÑÑледование полученных Ñорбентов Ñ Ð¿Ð¾Ð¼Ð¾Ñ‰ÑŒÑŽ Ñканирующей Ñлектронной микроÑкопии, ÑнергодиÑперÑионной рентгеновÑкой ÑпектроÑкопии и маÑÑ-Ñпектрометрии. Разработан новый подход Ð´Ð»Ñ Ñпецифичного Ð²Ñ‹Ð´ÐµÐ»ÐµÐ½Ð¸Ñ Ð¸Ð· биологичеÑкого образца аддуктов глобина Ñ 2,4-дихлор-N-хлорацетанилидом.
This work is devoted to the development and improvement of the method for modifying a MALDI target with metal affinity sorbents based on Langmuir monolayers containing new research objects, such as rare-earth metals (lanthanum, cerium, europium, ytterbium) for the specific isolation of chlorine-containing adducts of blood proteins. Objective: to study the possibility of modifying the MALDI target with sorbents based on lanthanum, cerium, europium, and ytterbium stearates for specific extraction of chlorine-containing protein adducts. Tasks that were solved during the study: 1. Modify the MALDI target with metal affinity sorbents based on lanthanum, cerium, europium and ytterbium stearates; 2. Investigate the resulting sorbents using various physicochemical methods; 3. Carry out metal-affinity extraction of modified globin peptides from its hydrolyzate. The work was fulfilled on the basis of Institute of Toxicology, Federal Medical-Biological Agency of Russia. The composition of each of the obtained sorbents was proved, a study of the obtained sorbents was carried out using scanning electron microscopy, energy dispersive x-ray spectroscopy and mass spectrometry. A new approach has been developed for the specific isolation of the globin adducts from 2,4- dichloro-N-chloroacetanilide from a biological sample.
ÑÑеаÑаÑÑ ÑедкоземелÑнÑÑ Ð¼ÐµÑаллов, MALDI mass spectrometry, коллапÑиÑованнÑе моноÑлои, меÑалл-аÑÑÐ¸Ð½Ð½Ð°Ñ Ñ ÑомаÑогÑаÑиÑ, rare-earth stearates, MALDI target, ÐÐÐÐРмиÑенÑ, metal affinity chromatography, ÐÐÐÐРмаÑÑ-ÑпекÑÑомеÑÑиÑ, Langmuir technology, collapsed monolayers, ÑÐµÑ Ð½Ð¾Ð»Ð¾Ð³Ð¸Ñ ÐенгмÑÑа
ÑÑеаÑаÑÑ ÑедкоземелÑнÑÑ Ð¼ÐµÑаллов, MALDI mass spectrometry, коллапÑиÑованнÑе моноÑлои, меÑалл-аÑÑÐ¸Ð½Ð½Ð°Ñ Ñ ÑомаÑогÑаÑиÑ, rare-earth stearates, MALDI target, ÐÐÐÐРмиÑенÑ, metal affinity chromatography, ÐÐÐÐРмаÑÑ-ÑпекÑÑомеÑÑиÑ, Langmuir technology, collapsed monolayers, ÑÐµÑ Ð½Ð¾Ð»Ð¾Ð³Ð¸Ñ ÐенгмÑÑа
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