Results 21 to 30 of about 7,738,696 (141)

ADSORPTION OF PROTAMINE AND PAPAIN PROTEINS ON SAPONITE [PDF]

open access: yes, 2008
Due to the increased importance of bionanocomposites, protamine and papain proteins were adsorbed on Na+ and on Cs+-exchanged saponite from aqueous solution.
Dekany, Imre   +10 more
core   +1 more source

N-[3-(Trimethoxysilyl)propyl] ethylenediamine Functionalized Saponite as Adsorbent of Nickel from Aqueous Solution [PDF]

open access: yes, 2017
Surface modification of saponite clay by surface functionalization using N-[3-(Trimethoxysilyl)propyl]ethylenediamine was performed. This study of the physicochemical characteristics of modified saponite as a function of its functional compound content ...
Yudha, Septian Perwira   +3 more
core   +1 more source

The evolution of saponite: An experimental study based on crystal chemistry and crystal growth

open access: yes, 2021
Element incorporation and partitioning during the evolution of clay minerals have significant implications for element cycling in geochemical processes. The main aim of this experimental study is to further our understanding of element redistribution and
Zhu, Jianxi   +9 more
core   +1 more source

Functionalization of synthetic saponite: identification of grafting sites and application for anions sequestration [PDF]

open access: yes, 2021
The present work reports the study of the mechanism of grafting of an alkoxysilane on the surface of a synthetic saponite. XRD and SEM/EDX characterizations confirmed the effective synthesis of the clay mineral with structural formula INTNa0.50TET[Si3 ...
Dzene, Liva   +14 more
core   +1 more source

Lichen‐Derived Mineral Residue as a Renewable Particulate Filler in Polylactic Acid Biocomposites: Structure, Melt Rheology, Viscoelastic, and Flexural Behavior

open access: yesPolymer Composites, EarlyView.
Lichen residue, a renewable mineral‐organic material, was melt compounded with polylactic acid and triacetin in a twin‐screw extruder. ABSTRACT A lichen‐derived natural material, known as “höllük” in southeastern Turkey, is introduced as a renewable filler for polylactic acid (PLA).
Huseyin Esen   +3 more
wiley   +1 more source

Synthesis and characterization of saponite clays: Part 2. Thermal stability

open access: yes, 2005
Synthetic saponites prepared at atmospheric pressure and at 90 °C within 20 hours with Mg, Zn, Ni, Cu, and/or Co in the octahedral sheets have been thermally treated under reducing and non-reducing conditions with or without the presence of steam.
Vogels, R. J M J   +3 more
core   +1 more source

Nonhydrothermal Synthesis and Properties of Saponite-Like Materials [PDF]

open access: yes, 2020
-Main features of nonhydrothermal synthesis of saponite-like materials containing Zn(II) and Mg(II) cations in octahedral networks were studied. Optimal conditions for the synthesis were determined.
Santen   +10 more
core  

Post‐flight assessment of the OSIRIS‐REx Sample Return Capsule (SRC) for organic and other potential contaminants

open access: yesMeteoritics &Planetary Science, EarlyView.
Abstract Regolith samples from the carbonaceous asteroid Bennu were stowed and delivered to Earth in the OSIRIS‐REx spacecraft's Sample Return Capsule (SRC). We applied multiple analytical techniques to study the components of the post‐flight SRC, with a focus on assessing the conditions and any contaminants to which the Bennu samples were exposed ...
Scott A. Sandford   +35 more
wiley   +1 more source

Xenoliths in meteorites: Insights into the dynamics of material exchange between asteroids

open access: yesMeteoritics &Planetary Science, EarlyView.
Abstract A minor fraction of meteorites contains xenoliths, that is, clasts that were formed on a different parent body than that of the host lithology. The occurrence of xenoliths is direct evidence for the exchange of material between asteroids, including exchanges between asteroids from the carbonaceous (CC) and non‐carbonaceous (NC) reservoirs ...
J. Gattacceca   +17 more
wiley   +1 more source

Distribution and rare earth element abundances of apatite in Bennu samples determined by synchrotron X‐ray fluorescence spectroscopy

open access: yesMeteoritics &Planetary Science, EarlyView.
Abstract Apatite is often the most rare earth element (REE)‐enriched mineral in chondritic meteorites. REE enrichment and fractionation levels in apatite grains can give insight into the aqueous fluids in which they formed and the conditions prevailing within the host body. In this study, we applied synchrotron X‐ray fluorescence (SXRF) spectroscopy to
B. J. Tkalcec   +17 more
wiley   +1 more source

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