scholarly journals 2-D organization of silica nanoparticles on gold surfaces: CO2 marker detection and storage

RSC Advances ◽  
2020 ◽  
Vol 10 (53) ◽  
pp. 31758-31764
Author(s):  
Eduardo José Cueto Díaz ◽  
Santos Gálvez-Martínez ◽  
Ma Carmen Torquemada Vico ◽  
María Pilar Valles González ◽  
Eva Mateo-Martí
Keyword(s):  
Silica Nanoparticles ◽  
Single Layer ◽  
Gold Surfaces ◽  
Average Size ◽  
And Storage ◽  
Marker Detection

A single layer of silica nanoparticles with an average size of ∼200 nm was deposited over the surface of pristine gold wafers, aided by (3-mercaptopropyl)trimethoxysilane.

Fluorescence immunosensor based on p-acid-encapsulated silica nanoparticles for tumor marker detection

The Analyst ◽  
2012 ◽  
Vol 137 (12) ◽  
pp. 2834 ◽  
Author(s):  
Mei Yan ◽  
Shenguang Ge ◽  
Weiqiang Gao ◽  
Chengchao Chu ◽  
Jinghua Yu ◽  
...  
Keyword(s):  
Tumor Marker ◽  
Silica Nanoparticles ◽  
Marker Detection

scholarly journals Multi-Bale Handling Unit for Efficient Logistics

2020 ◽  
Vol 2 (2) ◽  
pp. 336-349 ◽  
Author(s):  
Robert “Bobby” Grisso ◽  
John Cundiff ◽  
Kevin Comer
Keyword(s):  
New Technology ◽  
Perennial Grass ◽  
Single Layer ◽  
Logistics System ◽  
Unit Operations ◽  
Bioenergy Plant ◽  
Ambient Storage ◽  
Proper Design ◽  
And Storage ◽  
Plant Handling

This paper presents a design for a feedstock logistics system to supply a bioenergy plant located in the Southeast USA, specifically Piedmont, a physiographic region covering part of five states (VA, NC, SC, GA, and AL). The design uses a perennial grass (switchgrass) as the feedstock. Harvest is done with a round baler, and round bales are stored in single-layer ambient storage in satellite storage locations. New technology, 20-bale racks, was designed as the multi-bale handling unit. The analysis shows how proper design of the interactions between the several unit operations in a “logistics chain” can be used to minimize average delivered cost for the feedstock required for 24/7 operation. Racks are loaded at the satellite storage and delivered by hauling contractors hired by the plant and controlled by a “Feedstock Manager” at the plant to insure approximately the same number of loads are received each day. Single-bale handling at the plant is eliminated, thus the truck unload time is reduced and truck productivity (tons/day) is increased. At-plant handling and storage in 20-bale racks increases plant receiving facility productivity, and gives a reduction in plant cost to supply a continuous steam of material for 24/7 operation.

scholarly journals MODEL OF OPTIMIZATION OF FUNCTIONING OF MODERN POLYGRAPHIC AND PUBLISHING COMPLEXES

2020 ◽  
pp. 90-99
Author(s):  
Ivan Sevostyanov ◽  
Maryna Pidlypna
Keyword(s):  
High Performance ◽  
Additional Data ◽  
Single Layer ◽  
Digital Printing ◽  
Complex Equipment ◽  
Production Capacities ◽  
Automated Optimization ◽  
And Storage ◽  
Selection Of

Analysis of known methods and modern equipment for printing and publishing (sheet rotary machines, roll machines, flat-printing and platen machines for flat impression block, relief, intaglio and digital printing) is conducted in this article. In a result of the analysis article authors have to make a conclusion, that most prospective equipment for automated printing and publishing complexes are: high-performance sheet and roll machines, in that number crucible, flatbed and rotary three-cylinder machines and also single-layer and multi-layer sectional machines, digital laser and inkjet machines. Authors propose a mathematical model of an automated optimization system of functioning of modern printing and publishing companies. In the model are used databases with information about orders (quantity, volumes, content, terms of orders fulfillment, admissible prime value and characteristics of quality of finished products), production capacities of printing and publishing enterprises of the region (destination, quantity and productivity of equipment, its technological capabilities, loading with other orders, service life), as well as additional data about value of transportation and storage of ready products, the possibility and feasibility of transferring orders to other enterprises and more. The elaborated model can be used as a basis for creation of a computer program for automated synthesis and analysis of functioning optimization of modern printing and publishing companies in the region to improve their efficiency, as well as for help customers of printing products in selection of optimal variants of orders fulfillment. The modeling results will allow to rationalize the utilization of enterprises capacity, to reduce the value of finished products, to ensure their proper quality, to avoid of disruptions during of peak periods of enterprises loading, to reduce the value of repair and maintenance of the complex equipment.

Phyllantus Emblica Mediated Silica Nanomaterials: Biosynthesis, Structural and Stability Analysis

2021 ◽  
Author(s):  
M Sankareswaran ◽  
M Vanitha ◽  
P. Rajiv ◽  
A. Anbukumaran
Keyword(s):  
Silica Nanoparticles ◽  
Research Work ◽  
Xrd Analysis ◽  
Sem Analysis ◽  
Weight Percentage ◽  
Ir Studies ◽  
Silica Nanomaterials ◽  
Crystalline Nature ◽  
Size Of Particles ◽  
Average Size

Abstract The current investigation reports on a green route, simple and eco-friendly method for synthesis of silica nanoparticles from Phyllantus emblica. Appropriate characterization techniques were employed to assess the crystalline nature, microstructure, size, purity, elemental composition and stability of as-biosynthesized silica nanoparticles. The XRD analysis showed a wide-ranging peak at 22∘ of 2θ value and proved that the nanoparticles were crystalline nature with 32 nm average size of particles. FT-IR studies confirmed the occurrence of metal oxide group and presence of phyto-molecules namely hydroxyl, amide, and carboxyl functional groups, which were responsible for formation and stabilization of silica nanomaterials. TGA and Zeta potential analysis determined that silica nanoparticles are highly thermostable. EDX analysis revealed the purity of nanomaterials and spectra confirmed that formation of silica nanomaterials (72.97 weight percentage of SiO2 content) with low impurities. SEM analysis shows that the particles are spherical in shape with low agglomeration. This research work concluded that the P. emblica was an excellent and reliable green resource for production of highly stable and potential silica nanoparticles.

High-Performance, Single-Layer Antireflective Optical Coatings Comprising Mesoporous Silica Nanoparticles

2012 ◽  
Vol 4 (2) ◽  
pp. 854-859 ◽  
Author(s):  
Jonathan Moghal ◽  
Johannes Kobler ◽  
Jürgen Sauer ◽  
James Best ◽  
Martin Gardener ◽  
...  
Keyword(s):  
Mesoporous Silica ◽  
Silica Nanoparticles ◽  
High Performance ◽  
Mesoporous Silica Nanoparticles ◽  
Single Layer ◽  
Optical Coatings

scholarly journals Silica Nanoparticles from Coir Pith Synthesized by Acidic Sol-Gel Method Improve Germination Economics

Polymers ◽  
2022 ◽  
Vol 14 (2) ◽  
pp. 266
Author(s):  
Josef Maroušek ◽  
Anna Maroušková ◽  
Rajiv Periakaruppan ◽  
G. M. Gokul ◽  
Ananthan Anbukumaran ◽  
...  
Keyword(s):  
Light Scattering ◽  
Dynamic Light Scattering ◽  
Silica Nanoparticles ◽  
Sol Gel ◽  
Soft Template ◽  
X Ray ◽  
Stabilizing Agents ◽  
Coir Pith ◽  
Agricultural Applications ◽  
Average Size

Lignin is a natural biopolymer. A vibrant and rapid process in the synthesis of silica nanoparticles by consuming the lignin as a soft template was carefully studied. The extracted biopolymer from coir pith was employed as capping and stabilizing agents to fabricate the silica nanoparticles (nSi). The synthesized silica nanoparticles (nSi) were characterized by ultraviolet–visible (UV–Vis) spectrophotometry, X-ray diffraction analysis (XRD), Scanning Electron Microscope (SEM), Energy-Dispersive X-ray Analysis (EDAX), Dynamic Light Scattering (DLS) and Fourier-Transform Infrared Spectroscopy (FTIR). All the results obtained jointly and independently verified the formation of silica nanoparticles. In addition, EDAX analysis confirmed the high purity of the nSi composed only of Si and O, with no other impurities. XRD spectroscopy showed the characteristic diffraction peaks for nSi and confirmed the formation of an amorphous nature. The average size of nSi obtained is 18 nm. The surface charge and stability of nSi were analyzed by using the dynamic light scattering (DLS) and thus revealed that the nSi samples have a negative charge (−20.3 mV). In addition, the seed germination and the shoot and root formation on Vigna unguiculata were investigated by using the nSi. The results revealed that the application of nSi enhanced the germination in V. unguiculata. However, further research studies must be performed in order to determine the toxic effect of biogenic nSi before mass production and use of agricultural applications.

scholarly journals A Severe Microsporidian Disease in Cultured Atlantic Bluefin Tuna (Thunnus thynnus L.)

2021 ◽  
Author(s):  
Alejandro López-Verdejo ◽  
Francisco E. Montero ◽  
Fernando De la Gándara ◽  
Miguel A. Gallego ◽  
Aurelio Ortega ◽  
...  
Keyword(s):  
Polar Filament ◽  
Morphological Characteristics ◽  
Single Layer ◽  
Bluefin Tuna ◽  
Thunnus Thynnus ◽  
Atlantic Bluefin Tuna ◽  
Microsporidian Species ◽  
Molecular Comparison ◽  
Severe Pathology ◽  
Average Size

Abstract One of the most promising aquaculture species is the Atlantic bluefin tuna ( Thunnus thynnus ) with high market value; disease control is crucial to prevent and reduce mortality and monetary losses. Microsporidia Balbiani, 1882 (Fungi) are a potential source of damage to bluefin tuna aquaculture. A new microsporidian species is described from farmed bluefin tunas from the Spanish Mediterranean. This new pathogen is described in a juvenile associated with a highly severe pathology of the visceral cavity. Whitish xenomes from this microsporidian species were mostly located at the caecal mass and ranged from 0.2 to 7.5 mm. Light and transmission electron microscopy of the spores revealed mature spores with an average size of 2.2 × 3.9 μm in size and a polar filament with 13–14 coils arranged in one single layer. Phylogenetic analysis clustered this species with the Glugea spp. clade. The morphological characteristics and molecular comparison confirm that this is a novel microsporidian species, Glugea thunni sp. nov. The direct life cycle and the severe pathologies observed makes this parasite a hard risk for bluefin tuna cultures.

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