02.National Laboratory Astana: Recent submissions

Now showing items 21-40 of 861

CYTOPROTECTIVE ACTIVITY OF NEWLY SYNTHESIZED 3-(ARYLMETHYLAMINO)-6-METHYL-4-PHENYLPYRIDIN-2(1H)-ONES DERIVATIVES

Sergazy, Shynggys; Shulgau, Zarina; Zhulikeyeva, Aigerim; Ramankulov, Yerlan; Palamarchuk, Irina V.; Kulakov, Ivan V. (Molecules, 2022-08-23)

Currently, studies are being conducted on the possible role of the cytoprotective effect of biologically active substances in conditions of cerebral hypoxia or cardiomyopathies. At the same time, oxidative stress is ...
THE CLINICAL COURSE OF RHEUMATOID ARTHRITIS IN KAZAKHSTANI PATIENTS

Issilbayeva, Argul; Meiramova, Assel; Kushugulova, Almagul R.; Akhmetova, Zhanar B.; Biktashev, Damir; Abdakhina, Baglan B.; Aituganova, Aliya T.; Zueva, Yekaterina; Karlygash, Karina; Ainabekova, Bayan A. (Open Access Macedonian Journal of Medical Sciences, 2021)

BACKGROUND: Rheumatoid arthritis (RA) prevalence according to the worldwide epidemiological data varies from 0.4% to 1.3%. The disability and mortality rate in RA is high. RA clinic is various, and compiles from articular ...
GENOMIC ANALYSIS OF MULTIDRUG-RESISTANT MYCOBACTERIUM TUBERCULOSIS STRAINS FROM PATIENTS IN KAZAKHSTAN

Daniyarov, Asset; Molkenov, Askhat; Rakhimova, Saule; Akhmetova, Ainur; Yerezhepov, Dauren; Chingissova, Lyailya; Bismilda, Venera; Toksanbayeva, Bekzat; Rakisheva, Anar; Akilzhanova, Ainur; Kozhamkulov, Ulan; Kairov, Ulykbek (Frontiers in Genetics, 2021-11-09)

Tuberculosis (TB) is an infectious disease that remains an essential public health problem in many countries. Despite decreasing numbers of new cases worldwide, the incidence of antibiotic-resistant forms (multidrug ...
STUDY OF GUT MICROBIOTA ALTERATIONS IN ALZHEIMER’S DEMENTIA PATIENTS FROM KAZAKHSTAN

Kaiyrlykyzy, Aiym; Kozhakhmetov, Samat; Babenko, Dmitriy; Zholdasbekova, Gulnaz; Alzhanova, Dinara; Olzhayev, Farkhad; Baibulatova, Aida; Kushugulova, Almagul R.; Askarova, Sholpan (Scientific Reports, 2022)

We have investigated the diversity and composition of gut microbiotas isolated from AD (Alzheimer’s disease) patients (n = 41) and healthy seniors (n = 43) from Nur-Sultan city (Kazakhstan). The composition of the gut ...
RE-SEARCHER: GUI-BASED BIOINFORMATICS TOOL FOR SIMPLIFIED GENOMICS DATA MINING OF VCF FILES

Karabayev, Daniyar; Molkenov, Askhat; Yerulanuly, Kaiyrgali; Kabimoldayev, Ilyas; Daniyarov, Asset; Sharip, Aigul; Seisenova, Ainur; Zhumadilov, Zhaxybay; Kairov, Ulykbek (PeerJ, 2021-05-03)

High-throughput sequencing platforms generate a massive amount of high-dimensional genomic datasets that are available for analysis. Modern and userfriendly bioinformatics tools for analysis and interpretation of genomics ...
FABRICATION OF UV-CROSSLINKED FLEXIBLE SOLID POLYMER ELECTROLYTE WITH PDMS FOR LI-ION BATTERIES

Kalybekkyzy, Sandugash; Kopzhassar, Al-Farabi; Kahraman, Memet Vezir; Mentbayeva, Almagul; Bakenov, Zhumabay (Polymers, 2020-12-23)

Conventional carbonate-based liquid electrolytes have safety issues related to their high flammability and easy leakage. Therefore, it is essential to develop alternative electrolytes for lithium-ion batteries (LIBs). As ...
EPIDEMIOLOGY SURVEY OF MEASLES IN KAZAKHSTAN

Zhuzzhasarova, Aygerim; Baesheva, Dinagul; Turdalina, Bayan; Seidullaeva, Aliya; Altynbekova, Alena; Nurgaziev, Madiyar; Abdullaev, Bakhytzhan; Kushugulova, Almagul (Open Access Macedonian Journal of Medical Sciences, 2021-07-21)

BACKGROUND: Measles (rubella) is a highly contagious disease that is caused by a virus in the Paramyxoviridae family. The measles virus is directly responsible for more than 100,000 deaths each year. Epidemiological ...
PLANT EXTRACT OF LIMONIUM GMELINII ATTENUATES OXIDATIVE RESPONSES IN NEURONS, ASTROCYTES, AND CEREBRAL ENDOTHELIAL CELLS IN VITRO AND IMPROVES MOTOR FUNCTIONS OF RATS AFTER MIDDLE CEREBRAL ARTERY OCCLUSION

Nurkenov, Tulendy; Tsoy, Andrey; Olzhayev, Farkhad; Abzhanova, Elvira; Turgambayeva, Anel; Zhussupova, Aizhan; Avula, Bharathi; Ross, Samir; Aituarova, Aigerim; Kassymova, Dariya; Zhusupova, Galiya; Shalakhmetova, Tamara; Tokay, Tursonjan; Lee, James C.; Askarova, Sholpan (Antioxidants, 2021)

There are numerous publications demonstrating that plant polyphenols can reduce oxidative stress and inflammatory processes in the brain. In the present study we have investigated the neuroprotective effect of plant extract ...
BIOMASS-DERIVED POROUS CARBON FROM AGAR AS AN ANODE MATERIAL FOR LITHIUM-ION BATTERIES

Issatayev, Nurbolat; Kalimuldina, Gulnur; Nurpeissova, Arailym; Bakenov, Zhumabay (Nanomaterials, 2021-12-22)

New porous activated carbons with a high surface area as an anode material for lithium-ion batteries (LIBs) were synthesized by a one-step, sustainable, and environmentally friendly method. Four chemical activators—H2SO4, ...
DETERMINATION OF OPTIMAL SYNTHESIS CONDITIONS OF THE CU@PET COMPOSITES USING TAGUCHI ROBUST EXPERIMENT DESIGN

Mashentseva, Anastassiya; Zdorovets, Maxim (National Laboratory Astana, 2022-08)

In this task the Taguchi robust design was applied to optimize experimental parameters as well as to determine the optimal conditions for the electroless copper plating. Taguchi robust planning is widely used in the ...
LIMITATIONS AND CAPABILITIES OF MICRO-RAMAN SPECTROSCOPY. ELECTRODE MATERIALS FOR LITHIUM BATTERY

Ryabin, Alexander; Nikiforov, Alexei; Pelegov, Dmitry (National Laboratory Astana, 2022-08)

Raman spectroscopy is an inexpensive and convenient tool for prompt structural characterization. Most research groups have access to confocal Raman microscopes with claimed submicron spatial and subsecond temporal resolutions. ...
SOLUTION-PROCESSED SNO2 QUANTUM DOTS ELECTRON TRANSPORT LAYER FOR FLEXIBLE PRINTED PEROVSKITE SOLAR CELLS

Kakimov, Alibek G.; Kiani, Muhammad Salman; Sadirkhanov, Zhandos T.; Ng, Annie; Jumabekov, Askhat N. (National Laboratory Astana, 2022-08)

Flexible perovskite solar cells (PSCs) fabricated on lightweight plastic substrates have many excellent potential applications in emerging new technologies including wearable and portable electronics, the internet of things, ...
BIOMASS-BASED BIOCHAR OBTAINED BY LOW-TEMPERATURE PYROLYSIS IN THE PRESENCE OF METAL OXIDES: PREPARATION, CHARACTERIZATION AND FUTURE APPLICATIONS

Aitbayeva, Aigerim; Uali, Aitolkyn; Shlyapov, Rustam; Vishnyakov, Alexey; Amerkhanova, Shamshiya (National Laboratory Astana, 2022-08)

Biochar, which is material obtained from biomass by thermochemical decomposition, is an environmentally friendly replacement for carbon materials. Its applications range from heat and energy production, agriculture and ...
THE SOH AND THE SOC ASSESSMENT OF NCR18650 PANASONIC CYLINDRICAL BATTERY THROUGH THE ENTROPYMETRY

Serik, Yerkin; Adair, Desmond; Bakenov, Zhumabay; Uzakbaiuly, Berik (National Laboratory Astana, 2022-08)

As the demand for the li-ion batteries increases in various areas, the precise and reliable assessment of the state of health (SOH) and the state of charge (SOC) of the battery become more important in the battery management ...
EFFECT OF ACID ETCHING OF STAINLESS-STEEL FOILS IN RECHARGEABLE LITHIUM-ION BATTERIES

Maratova, Kamila; Konarov, Aishuak; Umirov, Nurzhan; Bakenov, Zhumabay (National Laboratory Astana, 2022-08)

Research into rechargeable aqueous batteries is driven by the need for low-cost, high-safety batteries for large-scale energy storage applications. The effect of current collectors on battery performance is frequently ...
INVESTIGATION OF SURFACE CARBIDE LAYERS OF TUNGSTEN UNDER THE INFLUENCE OF HELIUM PLASMA

Miniyazov, Arman; Skakov, Mazhyn; Tulenbergenov, Timur; Sokolov, Igor; Stepanova, Olga (National Laboratory Astana, 2022-08)

The relevance of the research is caused by development of a fusion energy, where issues of surface modification of plasma-facing materials of the first wall and divertor of a fusion reactor are of great importance. Therefore, ...
SOL-GEL SYNTHESIS OF LIFEPO4 FOR LIB BASED ON LITHIUM CARBONATE FROM KAZAKHSTANI SPODUMENE FEEDSTOCKS

Zhanabayeva, Assem; Nalibayeva, Arailym; Zhumabayeva, Dinara; Abdykhalykov, Erlan (National Laboratory Astana, 2022-08)

LiFePO4 (LFP) cathode material with an olivine structure, in comparison with other cathode materials, has a number of positive properties, such as: high theoretical capacity and stability, low cost and environmental ...
FACTORS AFFECTING THE DESIGN OF HYDROGEN SEPARATORS BASED ON DENSEMETALLIC MEMBRANES

Pişkin, Fatih; Akyıldız, Hasan; Öztürk, Tayfur (National Laboratory Astana, 2022-08)

Pure hydrogen is needed for a number of applications; annealing furnaces, semiconductor processing, LED, photovoltaic manufacturing etc. Perhaps the most important in this respect is power generation via PEM fuel cells..
EFFECT OF DOPING WITH CATIONS AND ANIONIC GROUPS ON THE IONIC CONDUCTIVITY PROPERTIES OF LATP SOLID ELECTROLYTES FOR LI-ION BATTERIES

Baltash, Yelnury; Mashekova, A.; Yegamkulov, M.; Trussov, I.; Mukanova, A. (National Laboratory Astana, 2022-08)

The good energy capacity of lithium-ion batteries (LIBs) makes them promising electrochemical energy storage devices. Existing commercial batteries use flammable liquid electrolytes, which are unsafe, toxic and environmentally ...
3D PRINTING OF HIGH-PERFORMANCE ELECTRODES FOR ALL-SOLID-STATE RECHARGEABLE LITHIUM-ION BATTERIES

Nnwaogu, Emmanuel Chisom; Nurpeissova, Arailym; Kalimuldina, Gulnur; Bakenov, Zhumabay (National Laboratory Astana, 2022-08)

Three-Dimensional (3D) electrode architecture of lithium-ion batteries (LIBs) is a new generation energy storage system with high energy and high-power capacity to satisfy high consumer demands, especially for its application ...