scholarly journals Biogenesis of Prism-Like Silver Oxide Nanoparticles Using Nappa Cabbage Extract and Their p-Nitrophenol Sensing Activity

Molecules ◽  
2020 ◽  
Vol 25 (10) ◽  
pp. 2298
Author(s):  
Jomaris Banua ◽  
Jeong In Han
Keyword(s):  
High Performance ◽  
Silver Oxide ◽  
Nickel Foam ◽  
Oxide Nanoparticles ◽  
Face Centered Cubic ◽  
Wide Range ◽  
Silver Oxide Nanoparticles ◽  
Face Centered ◽  
Scanning Spectroscopy ◽  
Cabbage Extract

The present study aimed to explore the eco-friendly synthesis of prism-like silver oxide nanoparticles (Ag2ONPs) from nappa cabbage extract and its p-nitrophenol sensing activity. The prepared Ag2ONPs were characterized by X-ray diffraction (XRD), field-emission scanning spectroscopy (FESEM), energy-dispersive spectroscopy (EDS), transmission electron microscopy (TEM), and ultraviolet (UV)–visible light spectral analysis (UV–Vis). p-Nitrophenol sensing properties of the prepared nanoparticles were also determined using a simple I–V method. The results showed that the as-prepared Ag2ONPs have a face-centered cubic (fcc) crystalline nature and a prism-like morphology with particle size in the range 21.61–92.26 nm. The result also showed a high intensity of the (111) facet, making the Ag2ONP–carbon black/nickel foam electrode (Ag2ONP–C/NFE) exhibit a high-performance response to p-nitrophenol spanning a wide range of concentrations from 1.0 mM to 0.1 pM and a response time of around 5 s, indicating a high potential for water treatment applications.

scholarly journals Eccentricity based topological indices of face centered cubic lattice FCC(n)

2020 ◽  
Vol 44 (1) ◽  
pp. 32-38
Author(s):  
Hani Shaker ◽  
Muhammad Imran ◽  
Wasim Sajjad
Keyword(s):  
Wiener Index ◽  
Face Centered Cubic ◽  
Eccentric Connectivity Index ◽  
Zagreb Index ◽  
Cubic Lattice ◽  
Chemical Graph ◽  
Chemical Graph Theory ◽  
Wide Range ◽  
Unit Cells ◽  
Face Centered

Abstract Chemical graph theory has become a prime gadget for mathematical chemistry due to its wide range of graph theoretical applications for solving molecular problems. A numerical quantity is named as topological index which explains the topological characteristics of a chemical graph. Recently face centered cubic lattice FCC(n) attracted large attention due to its prominent and distinguished properties. Mujahed and Nagy (2016, 2018) calculated the precise expression for Wiener index and hyper-Wiener index on rows of unit cells of FCC(n). In this paper, we present the ECI (eccentric-connectivity index), TCI (total-eccentricity index), CEI (connective eccentric index), and first eccentric Zagreb index of face centered cubic lattice.

Silver oxide nanoparticles alleviate indomethacin-induced gastric injury: a novel antiulcer agent

2017 ◽  
Vol 26 (4) ◽  
pp. 1025-1035 ◽  
Author(s):  
Neveen A. Salem ◽  
Mohammed A. Wahba ◽  
Wael H. Eisa ◽  
Marwa El-Shamarka ◽  
Wagdy Khalil
Keyword(s):  
Silver Oxide ◽  
Gastric Injury ◽  
Oxide Nanoparticles ◽  
Antiulcer Agent ◽  
Silver Oxide Nanoparticles

The effects of titania nanotubes with embedded silver oxide nanoparticles on bacteria and osteoblasts

Biomaterials ◽  
2014 ◽  
Vol 35 (13) ◽  
pp. 4223-4235 ◽  
Author(s):  
Ang Gao ◽  
Ruiqiang Hang ◽  
Xiaobo Huang ◽  
Lingzhou Zhao ◽  
Xiangyu Zhang ◽  
...  
Keyword(s):  
Silver Oxide ◽  
Titania Nanotubes ◽  
Oxide Nanoparticles ◽  
Silver Oxide Nanoparticles

The Influence of the Synthesis Method on the Formation of Phase Composition and Catalytic Centers Gd2Zr2O7

2020 ◽  
Vol 1009 ◽  
pp. 69-74
Author(s):  
Ekaterina Borisovna Markova ◽  
Alexander Genrihovich Cherednichenko ◽  
V.V. Kurilkin ◽  
J.M. Serov
Keyword(s):  
Crystal Structure ◽  
Synthesis Method ◽  
Nanocrystalline Powders ◽  
Face Centered Cubic ◽  
Cubic Crystal ◽  
Wide Range ◽  
Physicochemical Methods ◽  
Degradation Reaction ◽  
Cubic Structure ◽  
Face Centered

The influence of the type of crystal structure of complex gadolinium oxides on their catalytic activity was studied using a wide range of physicochemical methods. It was shown that the synthesized nanocrystalline powders Gd2Zr2O7 form highly symmetric face-centered cubic crystal structures. In the course of catalytic experiments, it was found that the formation of a cubic structure increases the degree of conversion of propane and the shift of cracking temperatures to a lower area. The formation of various defects contributes to the course of the dehydrogenation or degradation reaction due to the different number of catalytic centers.

scholarly journals Synthesis in Silica Nanoreactor: Copper Pyrophosphate Quantum Dots and Silver Oxide Nanocrystallites Inside Silica Mezochannels

Materials ◽  
2020 ◽  
Vol 13 (9) ◽  
pp. 2009 ◽  
Author(s):  
Łukasz Laskowski ◽  
Anna Majtyka-Piłat ◽  
Krzysztof Cpałka ◽  
Maciej Zubko ◽  
Magdalena Laskowska
Keyword(s):  
Thermal Decomposition ◽  
Quantum Dots ◽  
Chemical Composition ◽  
Functional Group ◽  
Silver Oxide ◽  
Oxide Nanoparticles ◽  
Silver Oxide Nanoparticles ◽  
Synthesis Routes ◽  
Functional Units

The synthesis routes are presented for the preparation of nanocomposites composed of nanocrystals placed inside SBA-15 silica pores. The procedures assume treating the silica channels as nanoreactors, where nanocrystals are created as a result of thermal decomposition of internal functional units. Its sizes and chemical composition can be modified by the change of functional group types and density inside silica channels. The procedure is demonstrated by the example of copper pyrophosphate quantum dots and silver oxide nanoparticles inside silica mezochannels. The method can be easily adopted to other types of nanocrystals that can be synthesized inside silica nanoreactors.

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