Results 11 to 20 of about 1,017,462 (268)
Characterizing polygonality in biological structures [PDF]
Physical Review E, 2006 Several systems involve spatial arrangements of elements such as molecules or cells, the characterization of which bears important implications to biological and physical investigations. Traditional approaches to quantify spatial order and regularity have relied on nearest neighbor distances or the number of sides of cells.
Costa, Luciano da Fontoura +2 more
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Efficient Green Synthesis of Hollow Silica Nanoparticles
Nantong Daxue xuebao. Ziran kexue ban, 2021 The traditional acid-base etching method to prepare hollow silica nanoparticles often causes safety and environmental problems. Thus, an efficient green method to synthesize the hollow silica nanoparticles is proposed in this paper.
YANG Ruilu; SHI Jian; LI Chunjian
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Actuators, 2018 The demand of miniaturized, accurate and robust micro-tools for minimally invasive surgery or in general for micro-manipulation, has grown tremendously in recent years. To meet this need, a new-concept comb-driven microgripper was designed and fabricated.
Cristina Potrich +6 more
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A Structural Characterization of Human SCO2 [PDF]
Structure, 2007 Human Sco2 is a mitochondrial membrane-bound protein involved in copper supply for the assembly of cytochrome c oxidase in eukaryotes. Its precise action is not yet understood. We report here a structural and dynamic characterization by NMR of the apo and copper(I) forms of the soluble fragment.
BANCI, LUCIA +6 more
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Extraction, Acetylation Modification and Structure Characterization of Hemicelluloses from Corncob
Shipin gongye ke-ji, 2022 Hemicellulose was extracted from corncob and further modified by acetylation. Ultrasonic-assisted alkali method was employed for the extraction, in which sulfuric acid (H2SO4) and elemental iodine (I2) were used as co-catalyst for the acetylation of ...
Qiao PENG +4 more
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mBio, 2019 Monocytes arriving at the site of infection differentiate into functional effector macrophages to replenish the resident sentinel cells. Bordetella pertussis, the pertussis agent, secretes an adenylate cyclase toxin-hemolysin (CyaA) that binds myeloid ...
Jawid Nazir Ahmad +6 more
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Preparation of Nano-sized Ceria and Analysis of Its Peroxidase Activity
Shipin gongye ke-ji, 2022 In order to prepare mimetic enzyme with hydrogen peroxide catalytic activity, CeO2 was used as the research object in this paper, and nano-sized CeO2 particles with peroxidase activity were prepared by hydrothermal method.
Shiyou YU +4 more
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Structural Characterization of Nitrimyoglobin
Journal of Biological Chemistry, 1989 Nitrimyoglobin was formed in greater than 94% yield by a simple reaction between excess nitrite and horse heart metmyoglobin at pH 5.5. This dark green pigment was shown by 1H NMR spectroscopy to be a single, pure product with a well defined tertiary structure that is highly similar to the starting myoglobin.
L L, Bondoc, R, Timkovich
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Community Structure Characterization [PDF]
, 2017 This entry discusses the problem of describing some communities identified in a complex network of interest, in a way allowing to interpret them. We suppose the community structure has already been detected through one of the many methods proposed in the literature. The question is then to know how to extract valuable information from this first result,
Vincent Labatut, Günce Keziban Orman
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Giant dielectric properties of CaCu3Ti4O12 ceramics synthesized by solid state reaction route [PDF]
Processing and Application of Ceramics, 2023 CaCu3Ti4O12 (CCTO) ceramics were prepared by solid-state reaction route, calcination at 1050°C for 4 h and sintering at 1050 and 1100°C for 8 h. X-ray diffraction and Raman studies of the CCTO powders and sintered samples confirmed the formation of ...
Kajal Parida A.P., Kumar Pawan
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