Results 1 to 10 of about 154,019 (297)
Siliceous zeolite-derived topology of amorphous silica. [PDF]
Commun Chem, 2023 Abstract The topology of amorphous materials can be affected by mechanical forces during compression or milling, which can induce material densification. Here, we show that densified amorphous silica (SiO2) fabricated by cold compression of siliceous zeolite (SZ) is permanently densified, unlike densified glassy SiO2 (GS) fabricated by cold ...
Masai H +14 more
europepmc +5 more sources
The phagocytosis and toxicity of amorphous silica. [PDF]
PLoS ONE, 2011 BACKGROUND: Inhalation of crystalline silica is known to cause an inflammatory reaction and chronic exposure leads to lung fibrosis and can progress into the disease, silicosis.
Lindsey M Costantini +2 more
doaj +3 more sources
A Systematic Review on the Hazard Assessment of Amorphous Silica Based on the Literature From 2013 to 2018 [PDF]
Frontiers in Public Health, 2022 BackgroundNanomaterials are suspected of causing health problems, as published studies on nanotoxicology indicate. On the other hand, some of these materials, such as nanostructured pyrogenic and precipitated synthetic amorphous silica (SAS) and silica ...
Harald F. Krug +2 more
doaj +2 more sources
Amorphous silica fiber matrix biomaterials: An analysis of material synthesis and characterization for tissue engineering [PDF]
Bioactive Materials, 2023 Silica biomaterials including Bioglass offer great biocompatibility and bioactivity but fail to provide pore and degradation features needed for tissue engineering.
Hyun S. Kim +2 more
doaj +2 more sources
Structure and Dynamics of amorphous Silica Surfaces [PDF]
The Journal of Chemical Physics, 2000 We use molecular dynamics computer simulations to study the equilibrium properties of the surface of amorphous silica. Two types of geometries are investigated: i) clusters with different diameters (13.5\AA, 19\AA, and 26.5\AA) and ii) a thin film with ...
Alexandra Roder +5 more
core +2 more sources
Disordered hyperuniformity in two-dimensional amorphous silica. [PDF]
Sci Adv, 2020 Two-dimensional amorphous silica exhibits a novel state of matter, disordered hyperuniformity, and enhanced electronic transport.
Zheng Y +10 more
europepmc +4 more sources
Journal of Materials Research and Technology, 2023 In order to improve the output value of microsilica produced during the ferrosilicon production process as well as to reduce pollution, amorphous silica was prepared from microsilica by calcination, alkali leaching and acid precipitation.
Yu Liang +6 more
doaj +1 more source
Characteristics of Lake Sediment from Southwestern Mongolia and Comparison with Meteorological Data
Geosciences, 2021 To understand how the climate system works in the continental interior, sediment cores that are approximately 30-cm long were taken from Olgoy, Boontsagaan, and Orog lakes, Mongolia.
Uyangaa Udaanjargal +9 more
doaj +1 more source
JCIS Open, 2022 Fluid-rock interactions may differ in mesopores (2–50 nm diameter) compared to macropores (>50 nm diameter). This study evaluates the influence of nano-confinement and pore geometry on point of zero charge (PZC) and hence surface charge and adsorption.
Andrew T. Jacobson +11 more
doaj +1 more source
Nanomaterials, 2022 Silicon dioxide (SiO2) is a mineral compound present in the Earth’s crust in two mineral forms: crystalline and amorphous. Based on epidemiological and/or biological evidence, the pulmonary effects of crystalline silica are considered well understood ...
Vanessa Marques Da Silva +5 more
doaj +1 more source