Determining the Role of Inorganic Inhibitors on the Strength and Corrosion Resistive Properties of Quarry Dust Concrete | Chapter 4 | Novel Aspects on Chemistry and Biochemistry Vol. 6

This episode highlights the role of not organic inhibitors on the strength and disintegration resistive properties of goal dust concrete. Concrete plays a very main role in the construction manufacturing. It is widely used in the general due to its staying power, versatility and cheap. Now a days the utilization and devouring of natural aggregates and cement as best concrete component is rapidly and uniformly increasing in the result of concrete. Quarry dust is in high demand for actual production because natural sand is more and more scarce and high-priced. Experimental work has been carried out accompanying Calcium Nitrite, Calcium Nitrate and Sodium Nitrate as corrosion inhibitors at the portion of drug or other consumable of 1%, 2%, 3% and 4% by weight of cement. The effectiveness of these not organic inhibitors was studied utilizing various electrochemical techniques to a degree Rapid Chloride Penetration Test (RCPT), Accelerated corrosion test, A.C. resistance measurement and Gravimetric weight misfortune measurement. Quarry dust actual can perform better by including not organic corrosion inhibitors, that can help to alleviate this problem. Several benefits can be earned by incorporating inorganic disintegration inhibitors into the concrete combination or by coating the surface of the hardened hardened with ruling class. In addition to water absorption, mechanical limits such as compressive substance, flexural strength, spilt stiffness, and bond strength were examined, and the optimum percentage adding of each inhibitor was recognized. The results show that replacing sand accompanying quarry dust increases the substance of the concrete; with the adding of an inhibitor, it offers lower permeability and more bulk, allowing it to give revised corrosion fighting and endurance in harsh surroundings.

Author(s) Details:

M. Devi,
Vivekanandha College of Technology for Women, Namakkal-637205, Tamilnadu, India.

Please see the link here: https://stm.bookpi.org/NACB-V6/article/view/11716

Synthesis and Evaluation of Imidazolium Based Ionic liquIds as Corrosion Inhibitor for Mild Steel in Hydrochloric Acid Medium: Electrochemical, Thermodynamic and Theoretical Studies| Chapter 4 | Research Aspects in Chemical and Materials Sciences Vol. 3

 Iimidazolium based ionic fluids (ILs, for example, 3-hexadecyl-1-methyl-1H-imidazol-3-ium bromide [C16M1Im] [Br] and 3-hexadecyl-1,2-dimethyl-1H-imidazol-3-ium bromide [C16M2Im] [Br] were combined and assessed for erosion obstruction on gentle steel in 1M HCl arrangement by weight reduction and electrochemical strategies. The outcomes uncovered that the restraint proficiency, upgraded with an ascent in the centralization of inhibitor. Furthermore, [C16M2Im] [Br] showed more noteworthy inhibitory viability than [C16M1Im] [Br] because of the expansion of more alkyl substituents. As per a polarization examination, the used inhibitors display blended type conduct however basically make anodic inhibitory impacts. The Langmuir adsorption isotherm is trailed by the inhibitors adsorbed on the gentle steel surface. Nuclear power microscopy (AFM) and filtering electron microscopy (SEM) with EDAX examination were utilized to break down the surface geography. The improvement of the Fe-inhibitor complex on the outer layer of gentle steel has been checked by UV-apparent spectroscopy. Quantum substance boundaries determined for [C16M1Im] [Br] and [C16M2Im] [Br] support the outcomes acquired from trial techniques.

Author(s) Details:

N. Subasree,
Department of Chemistry, SRM Institute of Science and Technology, Kattankulathur - 603203, India.

Renjith Sasimohanan Pillai,
Department of Chemistry, CHRIST (Deemed to be University), Bengaluru - 560029, India.

J. Arockia Selvi,
Department of Chemistry, CHRIST (Deemed to be University), Bengaluru - 560029, India.

Please see the link here: https://stm.bookpi.org/RACMS-V3/article/view/8232

In silico Evaluation of Antimalarial from Bioactive Compounds of Bitter Melon (Momordica charantia L.) and Its Toxicity with Plasmodium falciparum Lactate Dehydrogenase (PfLDH) and Plasmepsin (Plm) Enzymes as Targets | Chapter 8 | Current Research and Development in Chemistry Vol. 2

Malaria is one of the important health problems in the world caused by intracellular obligate protozoa of the genus plasmodium. P. falciparum causes the most severe infections and the highest mortality rate. The previous in vivo and in vitro research of crude alkaloid on bitter melon fruit (Momordica charantia L.) can prove antimalarial activity in P. Falciparum but the active compound which suitable for this activity is unknown yet. This study aims to evaluate in silico of twenty-five (25) bioactive compounds of bitter melon (Momordica charantia L.) as an inhibitor of the PfLDH and Plasmepsin enzymes. The PfLDH enzyme catalyzes the conversion of pyruvate to lactate which is a source of energy for P. falciparum and the enzyme plasmepsin works by degrading hemoglobin to be a food source.  The method used is molecular docking with software PLANTS, YASARA, MarvinSketch, and visualization using VMD, PyMOL and YASARA. As a positive control, Hoslundal is used as a PfLDH inhibitor and Pepstatin as a Plasmepsin inhibitor. The results obtained five (5) candidates for active compounds as PfLDH inhibitors, namely cucurbitine, α-elaeostearic acid, gentisic acid, galacturonic acid and momordol with very low toxicity and there is no active compound candidates as Plasmepsin inhibitors.

Author(s) Details

Prof. Dr. Syamsudin Abdillah
Faculty of Pharmacy, Universitas Pancasila, Jakarta, Indonesia.

Esti Mumpuni
 Faculty of Pharmacy, Universitas Pancasila, Jakarta, Indonesia.

Rima Melati
Faculty of Pharmacy, Universitas Pancasila, Jakarta, Indonesia.

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