Results 91 to 100 of about 5,784 (223)
Synthesis of Cucurbit[6]uril Using 1-Hydroxyethylidene-1,1-Diphosphonic Acid as a “Green Catalyst” [PDF]
, 2022 Glycoluril (2,4,6,8-tetraazabicyclo[3.3.0]octane-3,7-dione) and its derivatives have a special place in chemis-try of heterocyclic compounds. The macrocyclic derivatives of glycoluril, namely cucurbit[n]urils have re-cently attracted the greatest ...
Bakibaev A.A. +3 more
core +1 more source
Meteoritic Abundances of Fatty Acids and Potential Reaction Pathways in Planetesimals [PDF]
Icarus, 2019, 319, 685-700, 2018 The origin of fatty acids on the prebiotic Earth is important as they likely formed the encapsulating membranes of the first protocells. Carbon-rich meteorites (i.e., carbonaceous chondrites) such as Murchison and Tagish Lake are well known to contain these molecules, and their delivery to the early planet by intense early meteorite bombardments ...
arxiv +1 more source
International Endodontic Journal, Volume 57, Issue 10, Page 1492-1504, October 2024.Abstract Background The dental pulp's environment is essential for the regulation of mesenchymal stem cells' homeostasis and thus, it is of great importance to evaluate the materials used in regenerative procedures. Aim To assess in vitro (i) the effect of chitosan nanoparticles, 0.2% chitosan irrigation solution, Dual Rinse®, 17% EDTA, 10% citric acid
Roumaissa Belkadi +3 more
wiley +1 more source
Advanced Science, Volume 11, Issue 5, February 2, 2024.A modified S‐scheme heterojunction B‐TiO2@Co2P‐X with in situ Metal‐Oxygen‐Hydrogen (M‐O‐H) is proposed to enhance hydrophilicity and capture capability of hexavalent uranium by overcoming competition from impurity ions in uranium mine wastewater. Additionally, the formation of an internal electric field at the heterojunction between B‐TiO2 and Co2P ...
Fucheng Zhang +11 more
wiley +1 more source
Desenvolupament d’una crema de mans desinfectant i hidratant i disseny preliminar del seu procés de fabricació [PDF]
, 2021 Treballs Finals de Màster d'Enginyeria Química, Facultat de Química, Universitat de Barcelona. Curs: 2020-2021. Tutora: Alicia Maestro GarrigaThe current health crisis that society is going through as a result of the COVID-19 pandemic caused by the SARS ...
Azzouz Louahabi, Samia
core
Evaluation of Smear Layer Dissolution by Alternative Chelating Solutions [PDF]
, 2020 Purpose: To evaluate in vitro smear layer dissolution using alternative chelating solutions in comparison to EDTA. Methods: Nine extracted human anterior teeth were sectioned into dentin discs.
Pandez, Raymond
core +1 more source
Geometric-algebraic approach to aqueous solutions of diprotic acids and its buffer mixtures [PDF]
arXiv, 2023 A closed-form analytical expression for $\ce{[H3O+]}$ has been obtained for aqueous solutions of diprotic acids and its soluble salts. This formula allows to calculate the pH of aqueous solutions of diprotic acids, their buffer solutions, and the titrations of these two by a strong base, from the values of p$K_1$, p$K_2$, and the effective ...
arxiv
Comparison of three endodontic irrigant regimens against dual-species interkingdom biofilms: considerations for maintaining the status quo [PDF]
, 2020 Endodontic infections are often interkingdom biofilms, though current clinical management rarely considers this phenomenon. This study aimed to evaluate new and standard endodontic antimicrobial regimens against simple and complex Candida albicans and ...
Albashaireh, Khawlah +5 more
core +1 more source
Large presence of carbonic acid in CO$_2$-rich aqueous fluids under Earth's mantle conditions [PDF]
Journal of Physical Chemistry Letters 10, 5135-5141 (2019), 2019 The chemistry of carbon in aqueous fluids at extreme pressure and temperature conditions is of great importance to Earth's deep carbon cycle, which substantially affects the carbon budget at Earth's surface and global climate change. At ambient conditions, the concentration of carbonic acid in water is negligible, so aqueous carbonic acid was simply ...
arxiv +1 more source
Carbon Doping of MgB2 by Toluene and Malic-Acid-in-Toluene [PDF]
, 2010 The decomposition of malic acid in the presence of Mg and B was studied using Differential Scanning Calorimetry (DSC) and Thermogravimetric Analysis (TGA) which revealed that malic acid reacted with Mg but not B. Also, the addition of toluene to dissolve malic acid followed by subsequent drying resulted in no reaction with Mg, indicating that the malic
arxiv +1 more source