Docking Molecular Simulation Of Secondary Metabolic Compounds Annona Muricata As Anti-Cancer

This study aims to test and determine the affinity and molecular mechanism of Annona muricata to COX-2 target protein, which can be used to test the potential of Annona muricata as an anticancer drug using the molecular docking in silico method (computer modeling). By identifying and optimizing guide molecules in the drug discovery process, this computational chemical technique can be utilized to accelerate the selection of compounds to be isolated and synthesized. The research use descriptive quantitative as a research design and the experimental factorial design as an approach. The results of this study indicate that curcumin and its analogues have potential to became anticancer, and can be used for further drug development related to anticancer.

L-Proline as a Green Corrosion Inhibitor in Aqueous Solutions for Carbon Steel

The chemical technique was used to investigate the inhibition and adsorption properties of L-proline for steel corrosion (weight loss method). As the concentration of L-proline increased, the inhibition efficiency increased, but decreased as the temperature increased, according to the findings. The inhibitor’s adsorption to the steel surface has been shown to be random, involving both electrostatic and chemisorptions. The Temkin adsorption isotherm governs the adsorption of L-proline to the steel surface. Thermodynamic parameters have been determined in some cases.

A Compact Analytical Profile of Aripiprazole: Analytical Methodologies

Aripiprazole (APZ) is an antipsychotic drug that belongs to benzisoxazole derivatives and is used to treat schizophrenia as well as acute manic or mixed effects in patients with bipolar 1 disorder. APZ is used to treat certain mental, mood disorders such as bipolar disorder, Schizophrenia, Tourette's syndrome, and irritability associated with autistic disorder. It may also be used in combination with other medication to treat depression. The present review article would be useful for prospective studies for researchers interested in APZ formulation production and quality management. Using a thorough computer assisted literature survey; this review touches upon the various reported analytical methods for the quantification of APZ both in API (Active Pharmaceutical Ingredient) and pharmaceutical dosage forms. The present write-up also encompasses the various published research articles like Spectroscopy techniques, X- Ray Diffraction (XRD), Electro Chemical Technique, Differential Scanning Calorimeter (DSC) and Capillary Electrophoresis. This is the first review article in this series with focus on the analytical profile of APZ. Although, several methods were reported in the literature, HPLC stands out first for the quantification of APZ.

HASIL PEMANTAPAN MUTU INTERNAL PEMERIKSAAN HbA1c

HbA1c is a small component of hemoglobin that binds to blood sugar. Quality Control is usually done by examining the control material that has known the range value and comparing the results of the inspection tool with the range of the control material. HPLC (High Performance Liquid Chromatography) is an analytical chemical technique used to separate components in a mixture. The purpose of this study was to determine the Internal Quality Stabilization on HbA1c examination using Hb Analyzer. The method used is descriptive. The technique of collecting data uses primary data. Data is obtained by conducting control material checks during the control period which is carried out for 26 days and the data is processed computerically then plotted into the graph. Based on research in May-June 2019 good results were obtained, where not deviant.

Chemical Authentication of Botanical Ingredients: A Review of Commercial Herbal Products

Chemical methods are the most important and widely used traditional plant identification techniques recommended by national and international pharmacopoeias. We have reviewed the successful use of different chemical methods for the botanical authentication of 2,386 commercial herbal products, sold in 37 countries spread over six continents. The majority of the analyzed products were reported to be authentic (73%) but more than a quarter proved to be adulterated (27%). At a national level, the number of products and the adulteration proportions varied very widely. Yet, the adulteration reported for the four countries, from which more than 100 commercial products were purchased and their botanical ingredients chemically authenticated, was 37% (United Kingdom), 31% (Italy), 27% (United States), and 21% (China). Simple or hyphenated chemical analytical techniques have identified the total absence of labeled botanical ingredients, substitution with closely related or unrelated species, the use of biological filler material, and the hidden presence of regulated, forbidden or allergenic species. Additionally, affecting the safety and efficacy of the commercial herbal products, other low quality aspects were reported: considerable variability of the labeled metabolic profile and/or phytochemical content, significant product-to-product variation of botanical ingredients or even between batches by the same manufacturer, and misleading quality and quantity label claims. Choosing an appropriate chemical technique can be the only possibility for assessing the botanical authenticity of samples which have lost their diagnostic microscopic characteristics or were processed so that DNA cannot be adequately recovered.

Drop Solution Calorimetric Studies of Interface Enthalpy of Cubic Silver (I) Oxide (Ag2O) Nanocrystals

The nanoscale, cubic silver (I) oxide (Ag2O.nH2O) with different particles sizes and surface areas were synthesized by a wet chemical technique. The prepared crystallite size ranges were from (33.3±0.3 to 39.4±0.4 nm). Interface areas were estimated by comparing the surface areas measured by N2 adsorption to the crystallite sizes refined from X-ray diffraction data. The interface enthalpy of Ag2O.nH2O nanocrystal was measured using isothermal acid solution calorimetry in 25%HNO3 at 26°C. The interface enthalpy was verified by utilizing thermodynamic cycle. The enthalpies of drop solution (ΔHds) for Ag2O.nH2O are exothermic and range from (-62.228±0.197) to (-64.025±0.434 kJ/mol), while its interface enthalpy is (0.842±0.508 J/m2). This work provides the first calorimetric measurement of the interface enthalpy of nanocrystalline silver (I) oxide (Ag2O.nH2O).