Article
Agriculture, Dairy & Animal Science
Qianqian Xu, Sasa Miao, Huafeng Jian, Xiaoting Zou, Xinyang Dong
Summary: This study aimed to evaluate the development of the morphology and immune function in the jejunum and ileum of squab pigeons. The results showed that the enterocyte circumference and villus morphology changed with age, and there were alterations in the levels of secretory IgA and cytokines. Overall, the changes in the intestine persisted throughout the entire period and differed between the jejunum and ileum.
Article
Chemistry, Multidisciplinary
Mei Wang, Asher C. Leff, Yue Li, Taylor J. Woehl
Summary: This study successfully demonstrated the in situ controlled synthesis of alloyed AuCu nanocrystals under LP-TEM, while maintaining the molecular structure of metal thiolate complexes. The research revealed that polymer capping ligands not only have known functions during LP-TEM synthesis, but also prevent copper oxidation and facilitate the formation of prenucleation cluster intermediates.
Article
Chemistry, Physical
Alejandra Romero-Moran, Jose L. Sanchez-Salas, Joel Molina-Reyes
Summary: The study established the influence of the crystalline phase and agglomeration degree of TiO2 nanoparticles on photocatalytic hydroxyl radical formation and bacterial inactivation in TiO2/SiO2 composite coatings. A relationship between hydroxyl radicals' formation and charge carrier transfer mechanism between defect levels in SiO2 and TiO2 embedded nanoparticles was established through a simple spectroscopic method. This correlation complements the lack of mechanisms behind the photocatalytic activity in TiO2/SiO2 composites.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Physics, Condensed Matter
Anatoly Ye Yermakov, Vadim R. Galakhov, Artem S. Minin, Vitaly V. Mesilov, Mikhail A. Uimin, Karsten Kuepper, Stefan Bartkowski, Leonid S. Molochnikov, Aleksandr S. Konev, Vasiliy S. Gaviko, Galina S. Zakharova
Summary: In this study, various characterization techniques were applied to investigate Al-doped TiO2 nanopowders with Fe impurities, synthesized by the autoclave-assisted hydrothermal method and annealed in vacuum or hydrogen. The results suggest that these nanopowders display both intrinsic and extrinsic ferromagnetic properties, with particle sizes estimated to be around 10-20 nm.
PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS
(2021)
Article
Materials Science, Multidisciplinary
Zhichun Zhou, Binbin Jiang, Jianke Qiu, Linglei Zhang, Jiafeng Lei, Rui Yang, Kui Du
Summary: This study investigates the mechanism of crack formation in titanium alloys with lamellar microstructure under low-cycle dwell fatigue. The accumulation of residual dislocations and local tensile stress at the α/β interfaces are found to be the key factors leading to the formation of dwell fatigue cracks.
SCIENCE CHINA-MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Pavel Cizek, Sitarama R. Kada, Jiangting Wang, Nicholas Armstrong, Ross A. Antoniou, Peter A. Lynch
Summary: The study revealed that in the early stage of cyclic deformation in a Ti-6Al-4V alloy, dislocation structures mainly occurred through dislocation glide, with no evidence of deformation twinning. Prismatic and basal slip were the dominant deformation modes in the alpha phase. Dislocations in the beta phase after deformation mainly displayed a large screw component.
MATERIALS CHARACTERIZATION
(2021)
Article
Materials Science, Multidisciplinary
Yoon-Oh Jung, Min-Sik Kim, Jisung Park, Guang Yang, Dong Won Lee, Seong-Woong Kim
Summary: An improved step heat treatment method was developed to refine the microstructure of a cast TiAl alloy without hot working. The phase transformation behavior was identified and the heat treatment temperature and process were determined through a pseudo-phase diagram. The as-cast structure was eliminated through homogenization heat treatment before the heat treatment of each phase in the (alpha + gamma) region. Nucleation mainly occurred at the grain boundaries and the lamellar structure thickened during the (alpha + gamma) heat treatment. The step heat treatment effectively controlled the microstructure and improved the mechanical properties of the cast TiAl alloy at high temperatures.
MATERIALS CHARACTERIZATION
(2023)
Article
Chemistry, Physical
Jin-Hu Dou, Maxx Q. Arguilla, Yi Luo, Jian Li, Weizhe Zhang, Lei Sun, Jenna L. Mancuso, Luming Yang, Tianyang Chen, Lucas R. Parent, Grigorii Skorupskii, Nicole J. Libretto, Chenyue Sun, Min Chieh Yang, Phat Vinh Dip, Edward J. Brignole, Jeffrey T. Miller, Jing Kong, Christopher H. Hendon, Junliang Sun, Mircea Dinca
Summary: Researchers have successfully grown single crystals of 2D metal-organic frameworks up to 200 µm in size by balancing in-plane and out-of-plane interactions, revealing anisotropic transport and a clear correlation between conductivity and the nature of the metal cation in the sheets.
Article
Computer Science, Information Systems
Markus Otsus, Joonas Merisalu, Aivar Tarre, Anna-Liisa Peikolainen, Jekaterina Kozlova, Kaupo Kukli, Aile Tamm
Summary: This study evaluated the effects of chemically presynthesised nickel nanoparticles embedded in a dielectric layer on the structure and resistive switching properties. The results showed that the addition of nickel nanoparticles improved the resistive switching properties.
Article
Materials Science, Multidisciplinary
Lin Song, Fritz Appel, Florian Pyczak, Zhanbing He, Junpin Lin, Tiebang Zhang
Summary: This study revealed a novel internal twinning mechanism of the alpha(2) phase in a TiAl alloy deformed at high temperature, showing three generations of twins. The findings shed light on the ductility of the alloy and provide important information on the complex twinning mechanisms in hexagonal structures.
Article
Engineering, Environmental
Zhiming Zhang, Benhur K. Asefaw, Yi Xiong, Huan Chen, Youneng Tang
Summary: This study found that extracellular selenium nanoparticles (SeNPs) production on the biocathode was significantly higher compared to conventional reactors. Analysis of the microbial community on the cathode revealed an enrichment of Ospira oryzae, Desulfovibrio, Stenotrophomonas, and Rhodocyclaceae, which are known to produce both intracellular and extracellular SeNPs in conventional biofilm reactors. The observation suggests that microbes prefer to produce extracellular SeNPs on the cathode due to energy considerations.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Raquel Aymerich Armengol, Joohyun Lim, Marc Ledendecker, Katharina Hengge, Christina Scheu
Summary: Supported metal catalysts with partial encapsulation due to strong metal-support interactions exhibit distinctive structural features that significantly impact their functionalities. The synthesis and characterization of two Pt/TiO2 models revealed differences in morphology and local structure, which influenced their electrochemical activity and stability. Encapsulation by TiO2 resulted in enhanced particle stability but decreased Pt activity due to increased H+ intercalation on titania.
NANOSCALE ADVANCES
(2021)
Article
Nanoscience & Nanotechnology
Jun Cao, Zhichao Guo, Tielong Sun, Fuqiang Zhang, Yongfeng Liang, Xianfei Ding, Hai Nan, Junpin Lin
Summary: This paper presents a method for refinement of carbide precipitates in a cast Ti-45Al-8Nb-0.9C (at%) alloy through solution treatment and cyclic aging treatments. The coarse primary carbides that formed during casting were eliminated, while numerous submicron secondary carbides were precipitated. The crystallographic orientation relationship between the submicron secondary carbides and the high-Nb TiAl matrix was determined through various transmission electron microscopy characterization methods. This refinement method offers a potential approach for refining other precipitates in TiAl alloys.
SCRIPTA MATERIALIA
(2023)
Article
Chemistry, Physical
Zonglin Li, Mingxin Xie, Guozheng Nie, Junhui Wang, Lujun Huang
Summary: In this study, we developed an optical biosensor based on an all-dielectric metasurface with broken symmetry. The biosensor exhibited excellent performance, thanks to the high-Q quasi-bound states in the continuum (qBICs) and the efficient field confinement. It has potential applications in extreme biochemical sensing, such as COVID-19 detection at ultralow concentrations.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Article
Nanoscience & Nanotechnology
J. F. Xiao, Z. H. Nie, B. B. He, C. W. Tan
Summary: The mechanical response of ? precipitations in a Ti-15Mo alloy during compression test was examined using transmission electron microscopy (TEM) observation. The interaction between dislocation slips and ? precipitations was investigated, revealing the absence of certain ? variants and the presence of others in deformation bands. Two mechanisms, shear and disordering, were proposed to explain the mechanical responses of ? precipitations. This understanding will contribute to the strengthening strategy and alloy design of titanium.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2023)
Article
Behavioral Sciences
Kristina Mzhelskaya, Vladimir A. Shipelin, Antonina A. Shumakova, Anna D. Musaeva, Jorge S. Soto, Nikolay A. Riger, Nikita Trusov, Natalya Kirbaeva, Sergey A. Apryatin, Ivan Gmoshinski
BEHAVIOURAL BRAIN RESEARCH
(2020)
Article
Medicine, Research & Experimental
Yu S. Sidorova, S. N. Zorin, N. A. Petrov, A. A. Shumakova, Yu Frolova, V. K. Mazo
BULLETIN OF EXPERIMENTAL BIOLOGY AND MEDICINE
(2020)
Article
Chemistry, Multidisciplinary
Ivan V. Gmoshinski, Vladimir A. Shipelin, Antonina A. Shumakova, Eleonora N. Trushina, Oksana K. Mustafina, Irina V. Safenkova, Sergey A. Khotimchenko, Dmitry B. Nikityuk, Viktor A. Tutelyan
Article
Biochemistry & Molecular Biology
Antonina A. Shumakova, Vladimir A. Shipelin, E. V. Leontyeva, Ivan V. Gmoshinski
Summary: The study found that resveratrol, l-carnitine, tyrosine, and tryptophan have different effects on the content of trace elements in the organs of mice, with significant impacts on manganese, aluminum, and lead levels.
BIOLOGICAL TRACE ELEMENT RESEARCH
(2022)
Article
Biochemistry & Molecular Biology
Vladimir A. Shipelin, Nikita V. Trusov, Sergey A. Apryatin, Antonina A. Shumakova, Anastasia S. Balakina, Nikolay A. Riger, Ivan V. Gmoshinski, Dmitry B. Nikityuk
Summary: Tyrosine and tryptophan play significant roles in regulating energy metabolism, locomotor activity, and eating behavior in obesity models. Tryptophan can normalize body weight but increase anxiety-like behaviors and decrease long-term memory, while tyrosine can enhance grip strength but impair short-term memory.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)
Article
Biochemistry & Molecular Biology
Antonina A. Shumakova, Vladimir A. Shipelin, Nikita Trusov, Ivan Gmoshinski
Summary: The study investigated the mineral content in organs of Wistar and Z rats under different dietary conditions, revealing significant differences influenced by obesity and diet composition. The addition of quercetin may reduce the levels of certain elements, highlighting potential implications for nutrition and health interventions.
JOURNAL OF TRACE ELEMENTS IN MEDICINE AND BIOLOGY
(2021)
Article
Biochemistry & Molecular Biology
Ivan V. Gmoshinski, Vladimir A. Shipelin, Nikita V. Trusov, Sergey A. Apryatin, Kristina V. Mzhelskaya, Antonina A. Shumakova, Andrey N. Timonin, Nikolay A. Riger, Dmitry B. Nikityuk
Summary: The addition of tyrosine increased anxiety in mice and contributed to increased muscle tone, decreased liver fatty degeneration, and reduced ALT in mice that were sensitive to obesity. Tryptophan supplementation caused an increase in muscle tone, exacerbated anxiety with age, and had toxic effects on the livers of mice.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)
Article
Genetics & Heredity
N. V. Trusov, S. A. Apryatin, V. A. Shipelin, A. A. Shumakova, I. V. Gmoshinski, D. B. Nikityuk, V. A. Tutelyan
Summary: In this study, differential gene expression in the livers of male Wistar rats fed with high-fat high-fructose diet supplemented with L-carnitine, resveratrol, tyrosine, or tryptophan was investigated using the method of whole-transcriptome gene expression profiling. Bioinformatics analysis revealed that despite differences in the primary targets and phenotypic consequences, the intermediate stages of treatment engaged a complex of genes with similar functions related to cell cycle regulation, proliferation, apoptosis, intercellular interactions, immune response, and inflammation. Additionally, a differentiated effect on the metabolic pathway of arachidonic acid, including the formation of oxylipins, prostaglandins, and thromboxanes, was observed between L-carnitine, resveratrol, and tyrosine compared to tryptophan.
RUSSIAN JOURNAL OF GENETICS
(2021)
Article
Nutrition & Dietetics
Vladimir A. Shipelin, Nikita V. Trusov, Sergey A. Apryatin, Antonina A. Shumakova, Andrey N. Timonin, Nikolay A. Riger, Ivan V. Gmoshinski, Dmintry B. Nikityuk
Summary: This study investigated the effects of resveratrol and l-carnitine on diet-induced obese rats. The results showed that both supplements can reduce dyslipidemia and inflammation, and potentially have favorable effects on behavioral responses.
Article
Chemistry, Multidisciplinary
Vladimir A. Shipelin, Antonina A. Shumakova, Eleonora N. Trushina, Oksana K. Mustafina, Alexander G. Masyutin, Alexey Kolobanov, Ilya E. Sokolov, Ivan Gmoshinski, Sergey A. Khotimchenko, Dmitry B. Nikityuk
Summary: Nickel nanoparticles are widely used in various industries, but their toxicity when orally ingested is not well understood. This study investigated the acute and subchronic oral toxicity of nickel nanoparticles in rats. It was found that the toxicity of nickel nanoparticles depended on the dosage, and they had effects on the brain and immune system. Compared to equivalent doses of soluble nickel salts, nickel nanoparticles may pose additional health risks.
Meeting Abstract
Toxicology
N. V. Tyshko, S. I. Shestakova, A. A. Shumakova, N. S. Nikitin
TOXICOLOGY LETTERS
(2021)
Article
Nanoscience & Nanotechnology
I. V. Gmoshinski, N. A. Riger, V. A. Shipelin, A. A. Shumakova, E. N. Trushina, O. K. Mustafina, S. A. Khotimchenko
NANOTECHNOLOGIES IN RUSSIA
(2020)
Article
Nanoscience & Nanotechnology
I. V. Gmoshinski, A. A. Shumakova, V. A. Shipelin, A. D. Musaeva, A. A. Antsiferova, S. A. Tikhomirov, S. A. Khotimchenko
NANOTECHNOLOGIES IN RUSSIA
(2019)
Article
Nanoscience & Nanotechnology
A. A. Shumakova, I. V. Gmoshinsky, V. A. Shipelin, D. M. Rezaeva, S. A. Khotimchenko
NANOTECHNOLOGIES IN RUSSIA
(2018)