Results 1 to 10 of about 1,807,540 (186)

Solution-Mediated Polymorphic Transformation of L-Carnosine from Form II to Form I

open access: yesCrystals, 2022
In this study, L-carnosine was chosen as the model compound to systematically study solution-mediated polymorphic transformation by online experiment and theoretical simulation.
Yanan Zhou   +4 more
doaj   +1 more source

Impact of extraction method on alkaloid content and antioxidant activity of Matricaria pubescens

open access: yesCroatian Journal of Food Science and Technology, 2023
Matricaria pubescens is a medicinal plant much appreciated by the people of the Saharan regions and widely used to treat many diseases. The present study was devoted to evaluate the effect of extraction technique, pH and nature of solvent on alkaloid ...
Hassiba Metrouh-Amir, Nadir Amir
doaj   +1 more source

Efficacy of Passive Ultrasonic Activation Assisted Hand vs. Rotary Retreatment Files in the Removal of Root Canal Filling Material: An In Vitro Study [PDF]

open access: yesJournal of Clinical and Diagnostic Research, 2020
Introduction: Endodontic treatment failures are caused by persistent or secondary intraradicular infection due to inefficient treatment or re-infection of the obturated root canal system because of coronal or apical leakage.
Sumanthini V Margasahayam   +4 more
doaj   +1 more source

Effect of GuttaClear on Postoperative Pain After Root Canal Retreatment: A Randomized Clinical Trial

open access: yesEuropean Endodontic Journal, 2023
Objective: The aim of this study was to evaluate postoperative pain after non-surgical root canal retreatment with or without GuttaClear. Methods: Sixty participants were randomly distributed in this non-inferiority trial into two parallel singleblinded ...
Duangrat Sirijindamai   +3 more
doaj   +1 more source

Study of the Influence of a Solvent on the Crystal Structure of an Ethyl-Substituted Bisthiosemicarbazone Ligand

open access: yesChemistry Proceedings, 2023
A potentially dianionic symmetric bisthiosemicarbazone ligand H2LEt has been prepared by a condensation reaction between two equivalents of 4-N-ethyl-3-thiosemicarbazide and one equivalent of 4,4′-methylenebis(acetophenone).
Sandra Fernández-Fariña   +3 more
doaj   +1 more source

How Sn(IV) Influences on the Reaction Mechanism of 11, tri-Butyl p-Coumarate and Its tri-Butyl-tin p-Coumarate Considering the Solvent Effect: A DFT Level Study

open access: yesComputation, 2023
Antioxidants are molecules that neutralize free radicals. In general, the reaction mechanisms of antioxidants are well known. The main reaction mechanisms of antioxidants are electron transfer (ET), hydrogen transfer (HT), and radical adduction formation
Rogelio A. Delgado-Alfaro   +1 more
doaj   +1 more source

Functions of Ionic Liquids in Preparing Membranes for Liquid Separations: A Review

open access: yesMembranes, 2020
Membranes are widely used for liquid separations such as removing solute components from solvents or liquid/liquid separations. Due to negligible vapor pressure, adjustable physical properties, and thermal stability, the application of ionic liquids (ILs)
Dayuan Zheng   +6 more
doaj   +1 more source

Phenol compound content and antibacterial activity of gaharu leaf extract products (Aquilaria malaccensis)

open access: yesBioscience Journal, 2022
Gaharu leaf extract produces yield extraction, phenol compound, and antibacterial activity in diverse quantities. The purpose of this research was to investigate the influence of the extraction method and type of solvent on the extractability of the ...
Budi Santoso   +3 more
doaj   +1 more source

Study of the sorption properties of solvents in thinlayer and column chromatography

open access: yesИзвестия высших учебных заведений: Проблемы энергетики, 2020
Much attention is paid to the consideration of the causes of transformer oil aging under the influence of technogenic and natural factors. The paper insulation destruction mechanism is considered, as a result of which furan compounds are formed that ...
Vu Ngoc Dan, V. F. Novikov
doaj   +1 more source

Preparation of 2-Arachidonoylglycerol by Enzymatic Alcoholysis: Effects of Solvent and Water Activity on Acyl Migration

open access: yesFoods, 2022
Enzymatic alcoholysis was performed in an organic medium to synthesize 2-monoacylglycerol (2-MAG) rich in arachidonic acid. The results showed that solvent type and water activity (aw) significantly affected the 2-MAG yield. Under the optimum conditions,
Xiaohan Wang   +4 more
doaj   +1 more source

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