Results 1 to 10 of about 1,604 (165)

Assessment of the feed additive consisting of bentonite (dioctahedral montmorillonite) as an anticaking agent for all animal species and as a substance for reduction of the contamination of feed by mycotoxins for pigs, poultry and ruminants for the renewal of its authorisation (BASF SE) [PDF]

EFSA Journal
Following a request from the European Commission, EFSA was asked to deliver a scientific opinion on the renewal of bentonite as a technological feed additive in the functional groups of anticaking agents for all animal species and of substances for ...
EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP), Roberto Edoardo Villa, Giovanna Azimonti, Eleftherios Bonos, Henrik Christensen, Mojca Durjava, Birgit Dusemund, Ronette Gehring, Boet Glandorf, Maryline Kouba, Marta López‐Alonso, Francesca Marcon, Giovanna Martelli, Carlo Nebbia, Alena Pechová, Miguel Prieto‐Maradona, Katerina Theodoridou, Maria Dulak‐Lis, Jaume Galobart, Maria Vittoria Vettori, Orsolya Holczknecht, Matteo L. Innocenti, Alberto Navarro Villa, Fabiola Pizzo, Piera Valeri   +24 more
doaj   +3 more sources

Clays for Low-Carbon Cements: Overview, Progress, and Challenges. [PDF]

Glob Chall
This review provides a critical overview of recent developments of activated clays to function as artificial pozzolans. After a thorough description of the clays that yield good pozzolanic performances, selected examples are given on thermal and mechanical activations. Chiefly, general correlations are extracted from reported data despite its scattered
Koufany I, Santacruz I, De la Torre AG, Rodríguez-Ruiz MD, Aranda MAG.   +4 more
europepmc   +2 more sources

Protolysis Reaction on Pyrophyllite Surface Molecular Models: A DFT Study [PDF]

Molecules
Understanding the mechanisms of mineral dissolution at the atomic scale is crucial for interpreting geochemical processes in soils and sediments, particularly those involving clay minerals.
María Bentabol, Carlos Pérez del Valle, Alfonso Hernández-Laguna, F. Javier Huertas   +3 more
doaj   +2 more sources

Tunable Fabrication of 2D-Layered Magnesium Nanosilicates With Hemostatic Properties. [PDF]

Small Sci
Tunable 2D magnesium nanosilicates form bioactive protein coronas, support cellular internalization, and promote hemostatic activity. These nanoclays enable shear‐thinning gel formation and reduce clotting time and blood loss, highlighting their potential for wound‐management applications. Tunable fabrication of inorganic two‐dimensional (2D) nanoclays
Keller AL, Singh KA, Biswas S, Kadu K, Miller SE, Hua W, Conjeevaram S, Ramanuja V, Roy S, Foster S, Do C, Chen WR, Jin Y, Gaharwar AK.   +13 more
europepmc   +2 more sources

Effect of reactant ratio and nanofillers type on the microstructural properties, porosity fluctuations and heavy metal removal ability of chitosan-clay hybrid materials

Applied Surface Science Advances, 2023
The structure, porosity, and functionality of synthesized chitosan-clay nanocomposites (NCs) are examined throughout this work in relation to the initial stoichiometry and octahedral cavity occupation of the clay fraction.
Wael Albouchi, Mahdi Meftah, Abdesslem Ben Haj Amara, Walid Oueslati   +3 more
doaj   +1 more source

Structural features of mineral carriers of medicinal substances [PDF]

BIO Web of Conferences, 2021
The aim of the work is to investigation of the structural features of mineral carriers of medicinal substances. Tasks: conduct electron microscopy and study the structural features of mineral sorbents; develop a classification of sorption interaction ...
Bondarev Alexander, Zhilyakova Elena, Malyutina Anastasia, Kozubova Larissa, Avtina Natalia, Timoshenko Elena, Vasiliev Georgy   +6 more
doaj   +1 more source

Synthesis and structure of macrocyclic dinickel(II) complex with 5-(4-pyridyl)tetrazolate as coligand

Журнал Белорусского государственного университета: Химия, 2021
The dinuclear nickel(II) complex [Ni2LmClO4] + , where Lm represents a 24-membered macrocyclic hexaaza-dithiophenolate ligand, reacts with 5-(4-pyridyl)tetrazole (PyrCN4H) to give the dinuclear complex [Ni2Lm(PyrCN4)]+ . The new complex was both isolated
Sergei V. Voitekhovich, Berthold Kersting, Oleg A. Ivashkevich   +2 more
doaj   +1 more source

Diagenesis of the Sedimentary Fe–Ni Deposits of Euboea: Evidence Based on Phyllosilicate Mineralogy

Materials Proceedings, 2021
A set of samples with different textures from the sedimentary Fe–Ni deposits of Central Euboea, Greece, were studied with XRD and SEM-EDS to investigate the relationships between phyllosilicates present.
Spyros Cheliotis-Chatzidimitriou, Georgios E. Christidis, Ioannis Marantos   +2 more
doaj   +1 more source

Investigation of Plug Rolling with Stub Mandrel Using the Finite Element Method [PDF]

Archives of Metallurgy and Materials, 2018
The study proposed the model of “guide mark” defects formation on the internal surface of pipes, produced on PRM mills of PRP – 140. The research of pipe forming at plug rolling mill with stub mandrel has been carried out; regularities of the ...
D. Pavlov, A. Bogatov, E. Pavlova, H. Dyja   +3 more
doaj   +1 more source

AN INVESTIGATION OF POLYCHROME RELIEFS FROM PTOLEMAIC RUINS IN UPPER EGYPT [PDF]

European Journal of Materials Science and Engineering, 2019
Multiple analytical techniques were applied to testing inorganic pigments and renders on the surviving ruins of the temple of Ptolemy XII (117‒51 BC) at Tell Atrib, Upper Egypt.
Amany BAKR, Hussein MAREY MAHMOUD, Atef BRANIA   +2 more
doaj   +1 more source