Results 61 to 70 of about 8,605 (221)
Journal of Raman Spectroscopy, EarlyView.Micrometer analysis of millimeter lines of Raman spectra concludes in the association of anatase and graphitized organic matter (graphogen). The photosynthetic microorganisms at the origin of the microbialites produce O2, which is transformed by TiO2 into reactive species that, in turn, decompose the organic matter of the microorganisms. ABSTRACT Raman
Marie‐Paule Bassez
wiley +1 more source
Artificial weathering pools of calcium-rich industrial waste for CO2 sequestration [PDF]
, 2011 Processes of carbonation of calcium-rich aqueous industrial wastes from acetylene production were performed mimicking rock weathering, using the atmospheric carbon dioxide as reactant.
Esquivias Fedriani, Luis María +3 more
core +1 more source
Polymer Engineering &Science, EarlyView.ABSTRACT This study investigated the effects of incorporating ionomer scraps and CaCO3 nanoparticles on the rheological, mechanical, thermal, and morphological properties of neat polyamide 6 (PA6) and a PA6/ionomer scraps (80/20) blend. The ionomer formed an immiscible dispersed phase within the PA6, acting as an impact modifier; however, it reduced ...
Roberto Alves Taveira Jr. +2 more
wiley +1 more source
Pharmaceutics, 2023 The widespread application of calcium carbonate is determined by its high availability in nature and simplicity of synthesis in laboratory conditions.
Yulia Svenskaya, Tatiana Pallaeva
doaj +1 more source
Advanced Functional Materials, Volume 36, Issue 36, 4 May 2026.ACC forms via aggregating prenucleation clusters that gatekeep its chemical composition. Ion identity steers the path: Ba and Sr substitute Ca in clusters, thereby inhibiting nucleation, with a dose‐dependent switch of Sr to induction. Mg partitions into Mg‐rich and Mg‐poor clusters; the latter form ACC, expelling Mg.
Qianyu Zhao +9 more
wiley +1 more source
Porous Alginate Scaffolds Assembled Using Vaterite CaCO3 Crystals [PDF]
Micromachines, 2019 Formulation of multifunctional biopolymer-based scaffolds is one of the major focuses in modern tissue engineering and regenerative medicine. Besides proper mechanical/chemical properties, an ideal scaffold should: (i) possess a well-tuned porous internal structure for cell seeding/growth and (ii) host bioactive molecules to be protected against ...
Sergeeva, A, Vikulina, AS, Volodkin, D
openaire +4 more sources
Reliable Estimation of Wavenumbers for Calcite Peaks
Journal of Raman Spectroscopy, Volume 57, Issue 5, Page 821-827, May 2026.The wavenumbers of the calcite peaks were accurately estimated using a combination of a He–Ne laser and Ne emission lines. The values following the ± symbol represent the expanded uncertainties, corresponding to an approximate 95% confidence interval. ABSTRACT The Raman‐shift wavenumber ( ∆ν~), which is calculated as the difference between the absolute
Nobuyasu Itoh
wiley +1 more source
Bone Scaffolds Based on Degradable Vaterite/PEG‐Composite Microgels [PDF]
Advanced Healthcare Materials, 2020 AbstractVaterite, a metastable modification of calcium carbonate, embedded in a flexible microgel packaging with adjustable mechanical properties, functionality, and biocompatibility, provides a powerful scaffolding for bone tissue regeneration, as it is easily convertible to bone‐like hydroxyapatite (HA).
Elena Stengelin +8 more
openaire +4 more sources
High-efficiency freezing-induced loading of inorganic nanoparticles and proteins into micron- and submicron-sized porous particles [PDF]
, 2018 We demonstrate a novel approach to the controlled loading of inorganic nanoparticles and proteins into submicron- and micron-sized porous particles. The approach is based on freezing/thawing cycles, which lead to high loading densities.
Atkin, Vsevolod S +9 more
core +2 more sources
From Waste to Value: Conversion of Calcium Sulfate to Vaterite via Carbon Capture and Storage
Advanced Functional Materials, Volume 36, Issue 34, 27 April 2026.This study introduces a new concept for carbon management that relies on the carbonation of industrial gypsum waste and yields phase‐pure vaterite at ambient conditions without any additives. The obtained vaterite is further shown to be a reactive material that develops compressive strength in aqueous suspensions like conventional cements.
Carlos Pimentel +4 more
wiley +1 more source