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101.
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Sofia Rangou Dimitrios Moschovas Ioannis Moutsios Gkreti-Maria Manesi Konstantina Tsitoni Polina V. Bovsunovskaya Dimitri A. Ivanov Edwin L. Thomas Apostolos Avgeropoulos 《Molecules (Basel, Switzerland)》2020,25(24)
To the best of our knowledge, this is the very first time that a thorough study of the synthetic procedures, molecular and thermal characterization, followed by structure/properties relationship for symmetric and non-symmetric second generation (2-G) dendritic terpolymers is reported. Actually, the synthesis of the non-symmetric materials is reported for the first time in the literature. Anionic polymerization enables the synthesis of well-defined polymers that, despite the architecture complexity, absolute control over the average molecular weight, as well as block composition, is achieved. The dendritic type macromolecular architecture affects the microphase separation, because different morphologies are obtained, which do not exhibit long range order, and various defects or dislocations are evident attributed to the increased number of junction points of the final material despite the satisfactory thermal annealing at temperatures above the highest glass transition temperature of all blocks. For comparison reasons, the initial dendrons (miktoarm star terpolymer precursors) which are connected to each other in order to synthesize the final dendritic terpolymers are characterized in solution and in bulk and their self-assembly is also studied. A major conclusion is that specific structures are adopted which depend on the type of the core connection between the ligand and the active sites of the dendrons. 相似文献
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Alexander Vladimirovich Ivanov Mariya Petrovna Kruglova Edward Danielevich Virus Polina Olegovna Bulgakova Sergei Vital'evich Grachev Aslan Amirkhanovich Kubatiev 《Electrophoresis》2020,41(3-4):209-214
A new approach for direct determination of S-adenosylmethionine (SAM), S-adenosylhomocysteine (SAH), and methylthioadenosine (MTA) in urine was developed based on MEKC by using SDS modified with isobutanol in the presence of PEG-300. Analytes were first extracted with grafted phenylborononic acid. Using a 50 µm internal diameter silica capillary of 32 cm total length filled with 0.05 M SDS, 0.05 M H3PO4, 5% (v/v) isobutanol, and 10% (v/v) PEG-300, LOQ of 0.15 µM for SAM and SAH, and 0.2 µM for MTA was reached. Accuracy was 92% for MTA, 109% for SAH, and 105% for SAM, intra- and interday imprecision were <2.5 and ≤3%, respectively. The total time of analysis for one sample was 10 min. Analysis of 30 urine samples from healthy volunteers showed that the median SAM and SAH levels were 12.1 and 0.73 µM, respectively. MTA levels, which were determined in urine for the first time (according to our data), were 0.43 µM, and these values correlated well with the SAM level (r = 0.748, p < 0.01). 相似文献
105.
Binding parameters of metal complexes with albumins and DNA since the middle of 1990s are considered and summarized. The most widespread spectroscopic methods of estimation of binding parameters are discussed – direct fluorescent methods, indirect fluorescent methods (by fluorescence quenching parameters), and ways of estimation of binding constants by other optical spectroscopic methods. The methods and approaches to calculations used for the determination of binding constants are discussed. The data on the already found binding constants and kinetic parameters is systematized. 相似文献
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Agarkova Ekaterina A. Borik Mikhail A. Volkova Tatiana V. Kulebyakin Alexey V. Kuritsyna Irina E. Lomonova Elena E. Milovich Filipp O. Myzina Valentina A. Ryabochkina Polina A. Tabachkova Nataliya Yu. 《Journal of Solid State Electrochemistry》2019,23(9):2619-2626
Journal of Solid State Electrochemistry - The crystalline structure, ionic conductivity, and local structure of ZrO2-Gd2O3solid solution crystals have been studied for a wide range of compositions.... 相似文献
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Anatoly A. Vaganov Tatiana E. Taranushenko Natalia A. Luzan Irina A. Shchugoreva Olga S. Kolovskaya Polina V. Artyushenko Tatiana N. Zamay Anna S. Kichkailo 《Molecules (Basel, Switzerland)》2022,27(23)
The hemostasis system is a complex structure that includes the fibrinolysis system, and Yes this is correct coagulation and anticoagulation parts. Due to the multicomponent nature, it becomes relevant to study the key changes in the functioning of signaling pathways, and develop new diagnostic methods and modern drugs with high selectivity. One of the ways to solve this problem is the development of molecular recognition elements capable of blocking one of the hemostasis systems and/or activating another. Aptamers can serve as ligands for targeting specific clinical needs, promising anticoagulants with minor side effects and significant biological activity. Aptamers with several clotting factors and platelet proteins are used for the treatment of thrombosis. This review is focused on the aptamers used for the correction of the hemostasis system, and their structural and functional features. G-rich nucleic acid aptamers, mostly versatile G-quadruplexes, recognize different components of the hemostasis system and are capable of correcting the functioning. 相似文献
110.
Niko S. Radulovi? Goran A. Bogdanovi? Polina D. Blagojevi? Vidosav S. Deki? Rastko D. Vuki?evi? 《Journal of chemical crystallography》2011,41(4):545-551