Design and application of a tripodal on–off type chemosensor for discriminative and selective detection of Fe2+ ions

2018 ◽  
Vol 42 (8) ◽  
pp. 6161-6167 ◽  
Author(s):  
Atika Farhi ◽  
Farha Firdaus ◽  
Mohammad Shakir
Keyword(s):  
Cost Effective ◽  
Single Step ◽  
Selective Detection ◽  
Step Procedure ◽  
Ethyl Amine ◽  
Design And Application

A simple and cost effective tris 2(amino ethyl) amine based chemosensor is synthesized via a single-step procedure.

scholarly journals Facile Cost-Effective Rapid Single-Step Synthesis of Ag-Cu Decorated ZnO Nanoflower like composites (NFLC) for Electrochemical Sensing of Dopamine

2021 ◽  
Author(s):  
Srikanth Ponnada ◽  
Demudu Babu Gorle ◽  
Maryam Sadat Kiai ◽  
R. Saravanakumar ◽  
Rakesh Kumar Sharma ◽  
...  
Keyword(s):  
Neurological Disorders ◽  
Cost Effective ◽  
Single Step ◽  
Electrochemical Sensing ◽  
Selective Detection

The dopamine has serious concern with respect to neurological disorders like Alzheimer’s etc. hence there is a necessity for selective detection of dopamine concentrations in blood. In this work we...

scholarly journals 38 Using pooled data for single-step genomic prediction: Impact of within-pool variance and size

2020 ◽  
Vol 98 (Supplement_4) ◽  
pp. 9-9
Author(s):  
Johnna L Baller ◽  
Stephen D Kachman ◽  
Larry A Kuehn ◽  
Matthew L Spangler
Keyword(s):  
Phenotypic Variation ◽  
Equal Opportunity ◽  
Cost Effective ◽  
Single Step ◽  
Pool Size ◽  
Individual Data ◽  
Phenotypic Data ◽  
Breeding Values ◽  
Mean Values ◽  
Genetic Evaluations

Abstract Economically relevant traits (ERT) are routinely collected within commercial segments of the beef industry but are rarely included in genetic evaluations because of unknown pedigrees. Individual relationships could be resurrected with genomics, which would be costly; pooling DNA and phenotypic data provides a cost-effective solution. A simulated beef cattle population consisting of 15 generations was genotyped with approximately 50k markers (841 quantitative trait loci were located across the genome) and phenotyped for a moderately heritable trait. Individuals from generation 15 were included in pools (observed genotype and phenotype were mean values of a group). Estimated breeding values (EBV) were generated from a single-step GBLUP model. The effects of pooling strategy (random and minimizing or uniformly maximizing phenotypic variation), pool size (1, 2, 10, 20, 50, 100, or no data from generation 15), and generational gaps of genotyping on EBV accuracy (correlation of EBV with true breeding values) were quantified. Greatest EBV accuracies of sires and dams were observed when no gap between genotyped parents and pooled offspring occurred. The EBV accuracies resulting from pools were greater than no data from generation 15 regardless of sire or dam genotyping. Minimizing phenotypic variation increased EBV accuracy by 8% and 9% over random pooling and uniformly maximizing phenotypic variation, respectively. Pool size of 2 was the only scenario that did not significantly decrease EBV accuracy compared to individual data when pools were formed randomly or by uniformly maximizing phenotypic variation (P > 0.05). Pool sizes of 2, 10, 20, or 50 did not generally lead to EBV accuracies that were statistically different than individual data when pools were constructed to minimize phenotypic variation (P > 0.05). Pooled genotyping to garner commercial-level phenotypes for genetic evaluations seems plausible, although differences exist depending on pool size and pool formation strategy. The USDA is an equal opportunity employer.

Cost-effective diagnostic kits for selective detection of gaseous H2S

2021 ◽  
Author(s):  
Prabhpreet Singh ◽  
Navdeep Kaur
Keyword(s):  
Optical Properties ◽  
Cost Effective ◽  
Perylene Diimide ◽  
Selective Detection ◽  
Diagnostic Kits ◽  
Limited Scope

Bay-functionalization of perylene diimide (PDI) dye provide scope for modulating the optical properties of PDI. Symmetrical functionalization at 1,7-position of bay-region of PDI offered limited scope for tunability of photo...

An efficient solution for the single-step synthesis of 4CaO·Al2O3·Fe2O3 powders

2009 ◽  
Vol 24 (1) ◽  
pp. 245-252 ◽  
Author(s):  
Robert Ianoş
Keyword(s):  
Combustion Synthesis ◽  
Solution Combustion Synthesis ◽  
Cost Effective ◽  
Fuel Mixture ◽  
Single Step ◽  
Combustion Reaction ◽  
Exothermic Effect ◽  
Solution Combustion ◽  
Time Saving ◽  
X Ray

Single-phase nanocrystalline 4CaO·Al2O3·Fe2O3 powders were prepared directly from the combustion reaction using a new cost-effective, time-saving, and environmentally friendly version of solution combustion synthesis. Instead of a single fuel, a fuel mixture of urea and β-alanine was used. It was shown by x-ray diffraction, energy-dispersive x-ray analysis, thermogravimetric analysis, and optical microscopy that this new version of the solution combustion synthesis allows the maximization of the exothermic effect associated with the combustion reaction. On the other hand, it was shown that the traditional version of combustion synthesis involving the use of a single fuel, such as urea or β-alanine, does not ensure the formation of Ca4Al2Fe2O10 unless subsequent thermal treatments are applied. It was suggested that the occurrence of combustion reactions cannot be regarded only in terms of adiabatic temperature, as the kinetic aspects overrule the thermodynamic ones.

scholarly journals Interdisciplinary approach for full mouth rehabilitation: A Case Report

2016 ◽  
Vol 9 (6) ◽  
pp. 9 ◽  
Author(s):  
Jeaidi Al Zaid
Keyword(s):  
Case Reports ◽  
Interdisciplinary Approach ◽  
Cost Effective ◽  
Minimal Invasive ◽  
Missing Teeth ◽  
Step Procedure ◽  
Cost Effective Approach ◽  
Full Mouth Rehabilitation ◽  
Esthetic Dentistry ◽  
Front Tooth

The demand for esthetic dentistry is ever increasing. A beautiful smile is considered as a symbol of health and vitality is now looked upon as a status symbol. Discoloration of the front tooth may severely affect the confidence of the patient. The use of dental implant presents a conservative and esthetic method of replacing missing teeth. Bleaching is recommended as a minimal invasive and cost effective approach to change the color of the teeth. This case reports the step by step procedure for full mouth rehabilitation of an esthetically demanding patient.Keywords: Bleaching, Composites, Esthetics, Implant, Root canal treatment.

scholarly journals Green Chemical Synthesis of N-Cholyl-L-Cysteine Encapsulated Gold Nanoclusters For Fluorometric Detection of Mercury Ions

2021 ◽  
Author(s):  
Kasthuri Jayapalan ◽  
Sivasamy Arumugam ◽  
Rajendiran Nagappan
Keyword(s):  
Uv Light ◽  
Stokes Shift ◽  
Gold Nanoclusters ◽  
Green Emission ◽  
Fluorescence Analysis ◽  
Cost Effective ◽  
Single Step ◽  
Fluorometric Detection ◽  
Transmission Electron ◽  
Green Chemical Synthesis

Abstract Here we report a simple, single-step, cost-effective, environmentally friendly, and biocompatible approach using sodium salt of N-cholyl-L-cysteine (NaCysC) capped gold nanoclusters (AuNCs) with green emission properties at above the CMC in aqueous medium under UV-light irradiation. The primary and secondary CMC of NaCysC was found to be 4.6 and 10.7 mM respectively using pyrene as fluorescent probe. The synthesized AuNCs exhibit strong emission maxima at 520 nm upon excitation of 375 nm with a large Stokes shift of 145 nm. The surface functionality and morphology of NCs are studied by Fourier transform infrared spectroscopy, dymanic light scattering studies and transmission electron microscopy. The formation of AuNCs was completed within 5 h and exhibit high stability for more than 6 months. The NaCysC templated AuNCs selectively quenches the Hg2+ ions with higher sensitivity in aqueous solution over the other metal ions. The fluorescence analysis of Hg2+ showed a wide linear range from 15 to 120 µM and a detection limit was found to be 15 nM.

Multiple Boris solvers for particle-in-cell (PIC) simulation

2021 ◽  
Author(s):  
Seiji Zenitani ◽  
Tsunehiko Kato
Keyword(s):  
Plasma Physics ◽  
Particle Motion ◽  
Charged Particles ◽  
Single Step ◽  
Pic Simulation ◽  
Particle In Cell ◽  
Step Procedure ◽  
Cell Simulation ◽  
Continuous Demand

<div> <div> <div> <p> Particle-in-cell (PIC) simulation has long been used in theoretical plasma physics. In PIC simulation, the Boris solver is the de-facto standard for solving particle motion, and it has been used over a half century. Meanwhile, there is a continuous demand for better particle solvers. In this contribution, we introduce a family of Boris-type schemes for integrating the motion of charged particles. We call the new solvers the multiple Boris solvers. The new solvers essentially repeat the standard two-step procedure multiple times in the Lorentz-force part, and we derive a single-step form for arbitrary subcycle number <em>n</em>. The new solvers give <em>n<sup>2</sup></em> times smaller errors, allow larger timesteps, but they are computationally affordable for moderate <em>n</em>. The multiple Boris solvers also reduce a numerical error in long-term plasma motion in a relativistic magnetized flow.</p> </div> </div> </div><p>Reference:</p><ul><li>S. Zenitani & T. N. Kato, <em>Multiple Boris integrators for particle-in-cell simulation</em>, Comput. Phys. Commun. <strong>247</strong>, 106954, doi:10.1016/j.cpc.2019.106954 (2020)</li> </ul>

DESCRIPTION OF CHITOSANE GRAFTED ACRYLIC ACID BASED HYDROGEL SWELLING KINETICS AND THEIR USE IN NEW DESIGNED SYSTEM

2021 ◽  
Author(s):  
Tamara Erceg ◽  
◽  
Gaja Brakus ◽  
Dejan Kojić ◽  
Nevena Vukić ◽  
...  
Keyword(s):  
Acrylic Acid ◽  
Room Temperature ◽  
Cost Effective ◽  
Swelling Kinetics ◽  
Swelling Ratio ◽  
Empirical Dependence ◽  
Step Procedure ◽  
Dynamic Swelling ◽  
Hydrogel Swelling

Chitosan based hydrogel was synthesized via free-radical polymerization in a two-step procedure, after modification of chitosan by acrylic acid. Dynamic swelling test was carried out in distilled water at room temperature. Swelling kinetics was modeling using the principle of assuming the equation for a swelling ratio-time empirical dependence. Using regression analysis in this way gives the possibility for simpler determination of swelling ratio-time empirical dependence, knowing the graph functions. Obtained hydrogel was used for preparation of new bilayer hydrogel system which has potential application in wound dressing systems and other fields where pH sensitivity and improved mechanical properties of biopolymers are required in framework of green, cost-effective process.

Biological Synthesis of Silver Nanoparticles and their Biomedical Activity: A Review

2021 ◽  
Vol 09 ◽  
Author(s):  
Sarvat Zafar ◽  
Aiman Zafar ◽  
Fakhra Jabeen ◽  
Miad Ali Siddiq
Keyword(s):  
Silver Nanoparticles ◽  
Large Scale ◽  
Scale Up ◽  
Cost Effective ◽  
Biological Properties ◽  
Single Step ◽  
Biological Synthesis ◽  
Nanosized Particles ◽  
Environment Friendly ◽  
Physical And Chemical

: Nanotechnology studies the various phenomena of physio-chemical procedures and biological properties for the generation of nanosized particles, and their rising challenges in the various sectors, like medicine, engineering, agriculture, electronic, and environmental studies. The nanosized particles exhibit good anti-microbial, anti-inflammatory, cytotoxic, drug delivery, anti-parasitic, anti-coagulant and catalytic properties because of their unique dimensions with large surface area, chemical stability and higher binding density for the accumulation of various bio-constituents on their surfaces. Biological approaches for the synthesis of silver nanoparticles (AgNPs) have been reviewed because it is an easy and single-step protocol and a viable substitute for the synthetic chemical-based procedures. Physical and chemical approaches for the production of AgNPs are also mentioned herein. Biological synthesis has drawn attention because it is cost-effective, faster, non-pathogenic, environment-friendly, easy to scale-up for large-scale synthesis, and having no demand for usage of high pressure, energy, temperature, or noxious chemical ingredients, and safe for human therapeutic use. Therefore, the collaboration of nanomaterials with bio-green approaches could extend the utilization of biological and cytological properties compatible with AgNPs. In this perspective, there is an immediate need to develop ecofriendly and biocompatible techniques, which strengthen efficacy against microbes and minimize toxicity for human cells. The present study introduces the biological synthesis of silver nanoparticles, and their potential biomedical applications have also been reviewed.

scholarly journals From Waste to Multi-Hybrid Layering of High Carbon Steel to Improve Corrosion Resistance: An In-Depth Analysis Using EPMA and AFM Techniques

Surfaces ◽  
2019 ◽  
Vol 2 (3) ◽  
pp. 485-496 ◽  
Author(s):  
Wilson Handoko ◽  
Farshid Pahlevani ◽  
Yin Yao ◽  
Karen Privat ◽  
Veena Sahajwalla
Keyword(s):  
Corrosion Resistance ◽  
Environmental Sustainability ◽  
Steel Substrate ◽  
High Carbon Steel ◽  
Cost Effective ◽  
Integrated Approach ◽  
Single Step ◽  
Composition Analysis ◽  
Shredder Residue ◽  
Depth Analysis

Corrosion resistance of steel has attracted substantial interest for manufacturing applications to reduce costs corresponding to part failures, unexpected maintenance, and shortening lifespan. Meanwhile, millions of tonnes of slag, non-recyclable glass, and automotive shredder residue (ASR) are discarded into landfills every year, polluting the environment. Combining these two major issues, we delivered an alternative solution to enhance corrosion resistance of high-C steel. In this research, utilisation of these wastes (which were chemically bonded into steel substrate) as sources for production of multi-hybrid layering—including the multi-phase ceramic layer, the carbide layer, and the selective diffusion layer—was successfully achieved by single step surface modification technology. High-resolution topographical imaging by SEM and chemical composition analysis in micron-volume by electron probe micro analyser (EPMA) were performed. Nano-characterisation by atomic force microscopy (AFM) using the PeakForce quantitative nanomechanical mapping (PF-QNM) method was conducted to define Young’s modulus value of each phase in detail. Results revealed improvement of corrosion resistance by 39% and a significantly increased hardness of 13.58 GPa. This integrated approach is prominent for economic and environmental sustainability, consolidating industry demands for more profits, producing durable, steel components in a cost effective way to reduce dependency on new resources, and minimising negative impacts to the environment from disposal of wastes to the landfills.

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