Article
Polymer Science
Akanksha Rastogi, Sumita Sahoo, Tapas Kumar Bandyopadhyay, Rabibrata Mukherjee, Rintu Banerjee
Summary: This study investigates the kinetics and morphology of bacterial cellulose production by Leifsonia soli. The cellulose layer formation was observed to increase until the 7th day of incubation. X-ray diffraction analysis confirmed the semi crystalline nature of cellulose and identified its structure as allomorphs of I alpha and I beta. The study provides insights into the mechanism of cellulose formation and predicts the maximum cellulose synthesis.
Article
Nanoscience & Nanotechnology
Ivan S. Pavlov, Anna G. Ivanova, Vladimir P. Filonenko, Igor P. Zibrov, Alexei E. Voloshin, Pavel V. Zinin, Alexander L. Vasiliev
Summary: This study investigates the formation of boron carbide superhard particles through a liquid-phase reaction at high pressure and high temperature. The synthesized particles exhibit a rhombic hexecontahedron morphology with twelve five-vertex stars. Electron microscopy and X-ray diffraction were used to analyze the crystal structure of these particles, revealing multiple cycling twinning rather than quasi-crystalline symptoms. The specific shape of the particles is explained by the decrease of surface energy during formation at high pressure and high temperature.
SCRIPTA MATERIALIA
(2023)
Article
Plant Sciences
Ana Carolina Mendes Hacke, Fernanda D'Avila da Silva, Dhesmon Lima, Jose Carlos Rebuglio Vellosa, Joao Batista Teixeira Rocha, Jacqueline Aparecida Marques, Romaiana Picada Pereira
Summary: This study aimed to investigate the toxicity of different fractions and constituents of Cymbopogon citratus. The results demonstrated that the fractions and compounds tested exhibited varying levels of toxicity. The study also found that the removal of essential oil from the plant leaves facilitated the extraction of cytotoxic compounds. Further investigation is needed to identify the specific phytochemicals responsible for the observed cytotoxic effects and to explore the potential biomedical applications of these fractions.
JOURNAL OF ETHNOPHARMACOLOGY
(2022)
Article
Pharmacology & Pharmacy
Shakeeb Ahmed, Syed Mahmood, Mohd Danish Ansari, Azka Gull, Nitin Sharma, Yasmin Sultana
Summary: This work successfully achieved bypassing hepatic metabolism, controlled release, and enhanced brain distribution of agomelatine by loading it into nanostructured lipid carriers (NLC) and administering via transdermal route. The optimized AG-NLC showed improved solubility and skin permeation, suggesting the NLC-gel system may offer a promising strategy for enhancing brain delivery of agomelatine.
INTERNATIONAL JOURNAL OF PHARMACEUTICS
(2021)
Article
Food Science & Technology
Zongmin Liu, Lingzhi Li, ZhiFeng Fang, Yuankun Lee, Jianxin Zhao, Hao Zhang, Wei Chen, Haitao Li, Wenwei Lu
Summary: The study found that different strains of Bifidobacterium exhibit varying abilities to form biofilms on grape seed flour, with some strains forming strong biofilms while others only form weak biofilms. Biofilms improve bacterial survival and provide a theoretical basis for producing highly resistant probiotics in the food industry.
LWT-FOOD SCIENCE AND TECHNOLOGY
(2021)
Article
Multidisciplinary Sciences
Kun Xu, Luo Zhang, Andy Godfrey, Dongsheng Song, Wenlong Si, Yawen Zhao, Yi Liu, Yiheng Rao, Huaiwu Zhang, Heng-An Zhou, Wanjun Jiang, Wenbin Wang, Zhiying Cheng, Jing Zhu
Summary: This study demonstrates how advanced electron microscopy techniques combined with theoretical calculations can determine the interactions between a range of quantum-order parameters in Bi-substituted iron garnet, revealing insights into hidden coupling effects and contributing to enhanced magneto-optical response in complex functional materials.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2021)
Article
Chemistry, Physical
Vilko Mandic, Stanislav Kurajica, Ivana Panzic, Arijeta Bafti, Juraj Sipusic, Katarina Muzina, Filip Brlekovic, Lara Gigli, Mattia Gaboardi
Summary: In this study, a conventional PXRD device was used to measure X-ray reflectivity of a thin-film without technical specifications. Modified equations were used to assess the thin-film parameters, and the results were compared with other methods. The PXRD setup was found to be a precise method, but has limitations for complex multilayer thin-film configurations with similar refraction properties.
SURFACES AND INTERFACES
(2023)
Article
Chemistry, Physical
Masaki Tahara, Kazuya Hasunuma, Hideki Hosoda
Summary: This study investigated the decomposition process of the isothermal alpha '' phase in beta-Ti alloys, and found that the resulting alpha + beta dual phase inherited the microstructural characteristics of the alpha ''(iso) phase. The research results indicate the existence of a strict variant selection rule between the decomposed alpha and beta phases, with a specific variant combination observed.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Biochemical Research Methods
Tong Xin, Yanan Lv, Haoran Chen, Linlin Li, Lijun Shen, Guangcun Shan, Xi Chen, Hua Han
Summary: This article proposes a new method for serial section registration using an unsupervised optical flow network to measure feature similarity and eliminate nonlinear deformation. The optical flow network is also used to estimate and compensate for cumulative registration error, enabling the reconstruction of biological tissue structures. Experimental results demonstrate that this method effectively improves the spatial continuity of serial sections and enhances the accuracy of registration and reconstruction for biological tissue structures.
Article
Physics, Applied
Yang Zhou, Peng Zhang
Summary: This paper presents an analytical quantum model for photoemission from metal surfaces coated with an ultrathin dielectric. The effects of dielectric properties on photoemission are systematically investigated, and it is found that a flat metal surface with dielectric coating can achieve higher photoemission performance under certain conditions. The resonant peaks in the photoemission probability and current are observed as a function of dielectric thickness or electron affinity.
JOURNAL OF APPLIED PHYSICS
(2022)
Article
Materials Science, Multidisciplinary
A. S. Anu, A. S. Rao
Summary: In this study, Pr3+-doped LBW phosphors were synthesized using a conventional solid-state method. The structure, optical properties, and thermal stability of the phosphors were investigated, and it was found that the Pr3+-doped LBW phosphors exhibited strong visible blue and reddish emissions and showed potential for solid-state lighting and optical thermometry applications.
Article
Meteorology & Atmospheric Sciences
T. Siciliano, R. Giua, M. Siciliano, S. Di Giulio, A. Genga
Summary: PM10 samples were collected near a steel plant in the Apulia region of South-East Italy to study aerosol particles and attribute them to emission sources. Analysis revealed that particles mainly originate from soil, soot, and anthropogenic sources, with specific morphology and chemical composition enabling better identification of emission sources.
ATMOSPHERIC RESEARCH
(2021)
Article
Chemistry, Physical
Aneta Wardak, Witold Chrominski, Anna Reszka, Dominika Kochanowska, Marta Witkowska-Baran, Malgorzata Lewandowska, Andrzej Mycielski
Summary: This study presents a defect analysis in Cd and Te inclusion regions within Bridgman-grown Cd0.95Mn0.05Te crystals for nuclear detectors. Contrary to Cd inclusions causing microcracks, Te inclusions do not generate defects but induce higher stresses. The higher stress from Te inclusions has a smaller impact on charge carrier transport in detectors compared to Cd inclusions, as confirmed by mu tau product measurements.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Microscopy
Michal Bodik, Christopher Walker, Maksym Demydenko, Thomas Michlmayr, Thomas Bahler, Urs Ramsperger, Ann-Katrin Thamm, Steve Tear, Andrew Pratt, Mohamed El-Gomati, Danilo Pescia
Summary: Electron spectroscopy is an important tool in material science and can be combined with scanning probe microscopy through SFEM. Experimental and simulation data demonstrate that spectroscopic information can be understood without significantly compromising the spatial resolution of the microscope. SPELS measurements on different surfaces provide insights into the origin of spectral features, and a new model is developed to explain these features.
Article
Pharmacology & Pharmacy
E. Meziu, M. Koch, J. Fleddermann, K. Schwarzkopf, M. Schneider, A. Kraegeloh
Summary: Dehydration affects the structure of mucus, transforming it from a non-porous to porous network. Various microscopy techniques revealed the structural organization of mucus components and successfully visualized the major gel forming mucin in its hydrated state.
INTERNATIONAL JOURNAL OF PHARMACEUTICS
(2021)
