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Development of a Neutron Activation Analysis Method for Studying the Elemental Composition of Atherosclerotic Plaques 开发用于研究动脉粥样硬化斑块元素组成的中子活化分析方法
IF 0.9
Radiochemistry Pub Date : 2024-07-16 DOI: 10.1134/S1066362224030081
E. A. Danilova, N. S. Osinskaya, B. I. Kurbanov, S. K. Khudoynazarov, S. H. Khusniddinova
{"title":"Development of a Neutron Activation Analysis Method for Studying the Elemental Composition of Atherosclerotic Plaques","authors":"E. A. Danilova,&nbsp;N. S. Osinskaya,&nbsp;B. I. Kurbanov,&nbsp;S. K. Khudoynazarov,&nbsp;S. H. Khusniddinova","doi":"10.1134/S1066362224030081","DOIUrl":"10.1134/S1066362224030081","url":null,"abstract":"<p>Atherosclerosis is one of the most important problems of modern medicine. It involves changes in the structure and inner lining of the arteries. Studying chemical elements directly in vascular tissues allows understanding the mechanisms of evolvement of cardiovascular diseases, in particular, atherosclerosis. This study is aimed at developing the neutron activation technique for the analysis of atherosclerotic plaques formed at various stages of the atherosclerosis and studying their composition. The content of 13 elements in lipid, fibrous, ulcerated, and calcific plaques was determined using the developed method. It was established that upon evolving atherosclerosis, the content of a number of essential elements changes, the content of calcium, strontium, selenium, zinc and iron increases, and the bromine content decreases. Also, it was suggested that iron plays a role in the evolution of atherosclerotic vascular lesions.</p>","PeriodicalId":747,"journal":{"name":"Radiochemistry","volume":"66 3","pages":"351 - 355"},"PeriodicalIF":0.9,"publicationDate":"2024-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141719661","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Disproportionation of Plutonium(V) in EDTA Solutions EDTA 溶液中钚（V）的歧化反应
IF 0.9
Radiochemistry Pub Date : 2024-07-16 DOI: 10.1134/S1066362224030044
A. M. Fedoseev, V. P. Shilov
{"title":"Disproportionation of Plutonium(V) in EDTA Solutions","authors":"A. M. Fedoseev,&nbsp;V. P. Shilov","doi":"10.1134/S1066362224030044","DOIUrl":"10.1134/S1066362224030044","url":null,"abstract":"<p>The kinetics of disproportionation of Pu(V) in EDTA solutions with pH 2.5–4.8 at a temperature of 45°C was studied using the spectrophotometric method. Pu(V) was obtained by reduction of Pu(VI) with EDTA ions. The rate of disproportionation in the pH range 2.9–4.8 is described by the equation d[Pu(V)]/d<i>t</i> = 2<i>k</i>[Pu(V)]<sup>2</sup>. With increasing pH the value of 2<i>k</i> decreases. In a solution of 28 mM EDTA at pH 2.91, 45°С, and an ionic strength of 0.09 and 1.0 M, 2<i>k</i> is 0.064 and 0.040 M<sup>–1</sup> s<sup>–1</sup>, respectively. A dimer formed from PuO<sub>2</sub><sup>+</sup>·5H<sub>2</sub>O and the PuO<sub>2</sub>HY<sup>2–</sup>·<i>n</i>H<sub>2</sub>O complex becomes an activated complex. Its decomposition leads to the appearance of Pu(IV) and Pu(VI). The latter, being bound to Y, is reduced intramolecularly to Pu(V). The activation energy is 86 kJ/mol (25–45°C).</p>","PeriodicalId":747,"journal":{"name":"Radiochemistry","volume":"66 3","pages":"321 - 325"},"PeriodicalIF":0.9,"publicationDate":"2024-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141719663","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Pathways for Activating Isotope Exchange of Dopamine with D2O 用 D2O 激活多巴胺同位素交换的途径
IF 0.9
Radiochemistry Pub Date : 2024-07-16 DOI: 10.1134/S1066362224030111
V. P. Shevchenko, I. Yu. Nagaev, N. F. Myasoedov
{"title":"Pathways for Activating Isotope Exchange of Dopamine with D2O","authors":"V. P. Shevchenko,&nbsp;I. Yu. Nagaev,&nbsp;N. F. Myasoedov","doi":"10.1134/S1066362224030111","DOIUrl":"10.1134/S1066362224030111","url":null,"abstract":"<p>Various methods of introducing deuterium into dopamine using isotope exchange are considered. The best result is achieved by isotope exchange with deuterated water at 190°C for 30 min using (a) trifluoroacetic acid as a catalyst and (b) 5% Pd/Al<sub>2</sub>O<sub>3</sub> catalyst presaturated with deuterium gas. In the first case, the yield of deuterated dopamine was 65–70%, and the average deuterium content was 2.4–2.5 at./molecule. In the second case, the yield decreased to 35–40%, but the deuterium content increased to 3.50–3.60 at./molecule. The obtained result highlights the effectiveness of an integrated approach to introducing hydrogen isotopes into organic molecules, when activated hydrogen isotope species are formed on the catalyst and the substance deposited on it, which contribute to increasing the efficiency of isotope exchange with deuterated water at heating.</p>","PeriodicalId":747,"journal":{"name":"Radiochemistry","volume":"66 3","pages":"372 - 376"},"PeriodicalIF":0.9,"publicationDate":"2024-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141722295","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Study of the Activation Process of Isotope Exchange between Boc-Trp-Pro-Pro-Trp, Trp-Pro-Pro-Trp and Deuterated Water 研究 Boc-Trp-Pro-Pro-Trp、Trp-Pro-Pro-Trp 和氘化水之间同位素交换的活化过程
IF 0.9
Radiochemistry Pub Date : 2024-07-16 DOI: 10.1134/S1066362224030123
V. P. Shevchenko, K. V. Shevchenko, I. Yu. Nagaev, L. A. Andreeva
{"title":"Study of the Activation Process of Isotope Exchange between Boc-Trp-Pro-Pro-Trp, Trp-Pro-Pro-Trp and Deuterated Water","authors":"V. P. Shevchenko,&nbsp;K. V. Shevchenko,&nbsp;I. Yu. Nagaev,&nbsp;L. A. Andreeva","doi":"10.1134/S1066362224030123","DOIUrl":"10.1134/S1066362224030123","url":null,"abstract":"<p>The conditions for introducing deuterium into Trp-Pro-Pro-Trp and Boc-Trp-Pro-Pro-Trp by isotope exchange with D<sub>2</sub>O in the presence of a 5% Pd/Al<sub>2</sub>O<sub>3</sub> catalyst were developed. The thermal stability of Trp-Pro-Pro-Trp upon introduction of deuterium was significantly lower than that of the Boc-protected peptide. The yield of deuterated Trp-Pro-Pro-Trp did not exceed 10–15%, and the inclusion of deuterium was about 0.9–1.1 at./molecule at 125°C. The introduction of deuterium into Boc-Trp-Pro-Pro-Trp was possible at 150°C, which increased the deuterium content to 3.75 at./molecule. It was found that the tryptophan fragment of the molecule contains approximately 2 times more deuterium than the proline fragment. It was found that pretreatment of Boc-Trp-Pro-Pro-Trp with deuterium gas not only activates isotope exchange, but also promotes the removal of Boc protection. The data obtained indicate that the reason for this phenomenon is associated with the generation of deuterium cations on Boc-Trp-Pro-Pro-Trp molecules by the catalyst.</p>","PeriodicalId":747,"journal":{"name":"Radiochemistry","volume":"66 3","pages":"377 - 382"},"PeriodicalIF":0.9,"publicationDate":"2024-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141722296","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Erratum to: Statistical Evaluation of the Tritium Content of Aquatic Ecosystems at NPP Sites 勘误：国家核电厂厂址水生生态系统氚含量的统计评估
IF 0.9
Radiochemistry Pub Date : 2024-07-16 DOI: 10.1134/S1066362224030147
L. G. Bondarenko, V. N. Dushin, A. D. Sadykin, S. I. Shabalev
{"title":"Erratum to: Statistical Evaluation of the Tritium Content of Aquatic Ecosystems at NPP Sites","authors":"L. G. Bondarenko,&nbsp;V. N. Dushin,&nbsp;A. D. Sadykin,&nbsp;S. I. Shabalev","doi":"10.1134/S1066362224030147","DOIUrl":"10.1134/S1066362224030147","url":null,"abstract":"","PeriodicalId":747,"journal":{"name":"Radiochemistry","volume":"66 3","pages":"894 - 894"},"PeriodicalIF":0.9,"publicationDate":"2024-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142412067","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Thermal Stability of Irradiated VP-1AP Anion Exchange Resin 辐照 VP-1AP 阴离子交换树脂的热稳定性
IF 0.9
Radiochemistry Pub Date : 2024-07-16 DOI: 10.1134/S1066362224030056
V. V. Kalistratova, E. V. Belova, V. V. Milyutin, E. R. Nazin
{"title":"Thermal Stability of Irradiated VP-1AP Anion Exchange Resin","authors":"V. V. Kalistratova,&nbsp;E. V. Belova,&nbsp;V. V. Milyutin,&nbsp;E. R. Nazin","doi":"10.1134/S1066362224030056","DOIUrl":"10.1134/S1066362224030056","url":null,"abstract":"<p>The effect of irradiation of a strongly basic vinylpyridine anion exchange resin of the VP-1AP grade in nitrate form on the onset temperatures of exothermic reactions, thermal effects and the composition of gaseous thermolysis products of VP-1AP was studied. It was established that the onset temperatures of exothermic reactions for an irradiated anion exchange resin are reduced by 59–100°C. The total thermal effect of thermolysis of the irradiated sorbent is 67% less than that of the non-irradiated one. An analysis of the composition of the gaseous thermolysis products of the VP-1AP irradiated anion exchange resin showed that at the first stage of thermolysis, the functional groups of the sorbent are predominantly decomposed. At higher temperatures, the process of degradation of the styrene-divinylbenzene anion exchange resin matrix was ​detected. The significant influence of irradiation on the conditions for the safe use of anion exchange resins during separation of radionuclides from nitric acid solutions was demonstrated.</p>","PeriodicalId":747,"journal":{"name":"Radiochemistry","volume":"66 3","pages":"326 - 333"},"PeriodicalIF":0.9,"publicationDate":"2024-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141719660","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Development of Immunoradiometric Assay Technique for Measurement of Luteinizing Hormone in Human Serum 开发测定人血清中促黄体素的免疫放射测定技术
IF 0.9
Radiochemistry Pub Date : 2024-07-16 DOI: 10.1134/S1066362224030135
N. H. Ebeid, H. M. Shafik
{"title":"Development of Immunoradiometric Assay Technique for Measurement of Luteinizing Hormone in Human Serum","authors":"N. H. Ebeid,&nbsp;H. M. Shafik","doi":"10.1134/S1066362224030135","DOIUrl":"10.1134/S1066362224030135","url":null,"abstract":"<p>This study was aimed to prepare immunoradiometric (IRMA) system using solid-phase magnetizable cellulose particles coupled with luteinizing hormone (LH) to determine LH in human serum. The LH-IRMA system was designed through preparation of LH polyclonal antibody (anti-LH), <sup>125</sup>I-LH tracer, and LH standards. Production of anti-LH was carried out through immunization of three Balb/C mice with LH-BSA immunogen. Magnetizable cellulose particles were activated using 1,1’-carbonyldiimidazole (CDI) and coupled with purified anti-LH. Optimization and validation of LH-IRMA were undertaken. The results obtained show that the local solid-phase magnetic particle LH-IRMA is a sensitive, specific, precise, and accurate method for measuring the LH concentration in human serum and can be used as a diagnostic tool for some disorders such as infertility in females and impotence in males.</p>","PeriodicalId":747,"journal":{"name":"Radiochemistry","volume":"66 3","pages":"383 - 393"},"PeriodicalIF":0.9,"publicationDate":"2024-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141719666","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Erratum to: Nanodiamonds as Lutetium-177 Carriers for Nuclear Medicine 勘误：纳米金刚石作为核医学中的镥-177 载体
IF 0.9
Radiochemistry Pub Date : 2024-07-16 DOI: 10.1134/S1066362224030160
A. G. Kazakov, J. S. Babenya, T. Y. Ekatova, S. E. Vinokurov, E. Y. Khvorostinin, I. A. Ushakov, V. V. Zukau, E. S. Stasyuk, E. A. Nesterov, V. L. Sadkin, A. S. Rogov, B. F. Myasoedov
{"title":"Erratum to: Nanodiamonds as Lutetium-177 Carriers for Nuclear Medicine","authors":"A. G. Kazakov,&nbsp;J. S. Babenya,&nbsp;T. Y. Ekatova,&nbsp;S. E. Vinokurov,&nbsp;E. Y. Khvorostinin,&nbsp;I. A. Ushakov,&nbsp;V. V. Zukau,&nbsp;E. S. Stasyuk,&nbsp;E. A. Nesterov,&nbsp;V. L. Sadkin,&nbsp;A. S. Rogov,&nbsp;B. F. Myasoedov","doi":"10.1134/S1066362224030160","DOIUrl":"10.1134/S1066362224030160","url":null,"abstract":"","PeriodicalId":747,"journal":{"name":"Radiochemistry","volume":"66 3","pages":"896 - 896"},"PeriodicalIF":0.9,"publicationDate":"2024-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1134/S1066362224030160.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142412039","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Erratum to: Preparation of High-Labeled Graphene Oxide by Tritium Thermal Activation Method for Application in the Betavoltaic Cell of a Nuclear Battery 勘误：用氚热活化法制备高标记氧化石墨烯并将其应用于核电池的光伏电池中
IF 0.9
Radiochemistry Pub Date : 2024-07-16 DOI: 10.1134/S1066362224030159
G. A. Badun, V. A. Bunyaev, M. G. Chernysheva
{"title":"Erratum to: Preparation of High-Labeled Graphene Oxide by Tritium Thermal Activation Method for Application in the Betavoltaic Cell of a Nuclear Battery","authors":"G. A. Badun,&nbsp;V. A. Bunyaev,&nbsp;M. G. Chernysheva","doi":"10.1134/S1066362224030159","DOIUrl":"10.1134/S1066362224030159","url":null,"abstract":"","PeriodicalId":747,"journal":{"name":"Radiochemistry","volume":"66 3","pages":"895 - 895"},"PeriodicalIF":0.9,"publicationDate":"2024-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1134/S1066362224030159.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142412068","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Sorption Recovery of Cesium from High Level Alkaline Waste from Mayak Production Association 从玛雅克生产协会的高浓度碱性废物中吸附回收铯
IF 0.9
Radiochemistry Pub Date : 2024-07-16 DOI: 10.1134/S106636222403007X
K. A. Feoktistov, D. V. Markova, P. V. Kozlov, S. M. Shaydullin, V. V. Milyutin, N. A. Nekrasova, M. V. Tutov, A. M. Yegorin
{"title":"Sorption Recovery of Cesium from High Level Alkaline Waste from Mayak Production Association","authors":"K. A. Feoktistov,&nbsp;D. V. Markova,&nbsp;P. V. Kozlov,&nbsp;S. M. Shaydullin,&nbsp;V. V. Milyutin,&nbsp;N. A. Nekrasova,&nbsp;M. V. Tutov,&nbsp;A. M. Yegorin","doi":"10.1134/S106636222403007X","DOIUrl":"10.1134/S106636222403007X","url":null,"abstract":"<p>The results of the sorption of <sup>137</sup>Cs from the clarified phase of accumulated high-level alkaline radioactive waste of the Mayak Production Association with sorbents based on modified nickel ferrocyanide (Fersal) and resorcinol–formaldehyde resin (RFS-I) in batch and flow conditions are presented. In batch mode, the distribution coefficient of <sup>137</sup>Cs on Fersal and RFS-I sorbents is 2300 and 730 cm<sup>3</sup>/g, respectively. In flow mode, the volume of the passed solution before the <sup>137</sup>Cs breakthrough for Fersal and RFS-I sorbents is 140 and 85 column volumes, and the maximum purification factor is 10<sup>4</sup> and 10<sup>3</sup>, respectively. To desorb cesium from the Fersal and the RFS-I, 8 M HNO<sub>3</sub> and 1 M HNO<sub>3</sub> solutions, respectively, were used. A decrease in the sorption characteristics of the RFS-I sorbent during the sorption of cesium from high-level alkaline radioactive waste was discovered. A conclusion was made about the possibility of using the Fersal sorbent for the recovery of <sup>137</sup>Cs from high-level alkaline radioactive waste of the Mayak Production Association.</p>","PeriodicalId":747,"journal":{"name":"Radiochemistry","volume":"66 3","pages":"344 - 350"},"PeriodicalIF":0.9,"publicationDate":"2024-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141722293","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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