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Keyword:'calcium carbonate'
Showing 1-30 of 1273 results for "calcium carbonate" within Papers
Juan Antonio Nieto et al.
Food chemistry, 348, 128740-128740 (2021-01-26)
The bioaccessibility and bioavailability of a functionalized Calcium (Ca) salt as food ingredient, based on modified Ca carbonate and hydroxyapatite (FCC), was determined and compared with frequently used Ca sources (Ca citrate tetrahydrate (CCT), tri-Ca phosphate (triCP) and Ca carbonate
Mostafa Seifan et al.
Applied microbiology and biotechnology, 100(23), 9895-9906 (2016-07-10)
Microbially induced calcium carbonate precipitation is an emerging process for the production of self-healing concrete. This study was aimed to investigate the effects and optimum conditions on calcium carbonate biosynthesis. Bacillus licheniformis, Bacillus sphaericus, yeast extract, urea, calcium chloride and
Jani Holopainen et al.
Materials science & engineering. C, Materials for biological applications, 45, 469-476 (2014-12-11)
Calcium carbonate (CaCO3) fibers were prepared by electrospinning followed by annealing. Solutions consisting of calcium nitrate tetrahydrate (Ca(NO3)2·4H2O) and polyvinylpyrrolidone (PVP) dissolved in ethanol or 2-methoxyethanol were used for the fiber preparation. By varying the precursor concentrations in the electrospinning
Anne Handrini Dewi et al.
Journal of biomedical materials research. Part A, 103(10), 3273-3283 (2015-03-27)
Gypsum or calcium sulfate (CS) or plaster of Paris (POP) is considered as a fast degradable material that usually resorbs before the bone defect area is completely filled by new bone. In this study, the incorporation of CaCO3 hydrogel into
Fadwa Jroundi et al.
Acta biomaterialia, 10(9), 3844-3854 (2014-03-25)
Gypsum plasterworks and decorative surfaces are easily degraded, especially when exposed to humidity, and thus they require protection and/or consolidation. However, the conservation of historical gypsum-based structural and decorative materials by conventional organic and inorganic consolidants shows limited efficacy. Here
Alejandro B Rodríguez-Navarro et al.
Journal of structural biology, 190(3), 291-303 (2015-05-03)
Avian eggshell mineralization is the fastest biogenic calcification process known in nature. How this is achieved while producing a highly crystalline material composed of large calcite columnar single crystals remains largely unknown. Here we report that eggshell mineral originates from
Juan Song et al.
Poultry science, 94(3), 402-407 (2015-02-15)
Previous experiments have proved that thermodynamically unstable calcium carbonate vaterite can exist for long periods in the yolk sac of a pigeon embryo. The aim of this article was to demonstrate the effect of in vitro mineralization of yolk sac
A Gonzalez-Martinez et al.
Biofouling, 31(4), 333-348 (2015-05-23)
A bench-scale pure moving bed bioreactor-membrane bioreactor (MBBR-MBR) used for the treatment of urban wastewater was analyzed for the identification of bacterial strains with the potential capacity for calcium carbonate and struvite biomineral formation. Isolation of mineral-forming strains on calcium
Cheng Wang et al.
International journal of nanomedicine, 15, 4049-4062 (2020-07-02)
Calcium carbonate (CC) nanoparticles have broad biomedical utilizations, owing to their multiple intrinsic merits. However, bare CC nanoparticles do not allow for the development of multifunctional devices suitable for advanced drug delivery in cancer therapy. Phospholipid-modified phospholipid-CC hybrid nanoparticles were
Chan Hee Lee et al.
International journal of biological macromolecules, 175, 341-350 (2021-02-09)
Enzyme immobilization using inorganic materials has been shown to preserve enzyme activity improving and improve their practical applications in biocatalytic process designs. Proper immobilization methods have been used to obtain high recycling and storage stability. In this study, we compared
Lucas F B Nogueira et al.
Materials science & engineering. C, Materials for biological applications, 58, 1-6 (2015-10-20)
The high biocompatibility and resorbability of polymeric membranes have encouraged their use to manufacture medical devices. Here, we report on the preparation of membranes consisting of carrageenan, a naturally occurring sulfated polysaccharide that forms helical structures in the presence of
Chun-Chen Yang et al.
International journal of molecular sciences, 20(5) (2019-03-09)
Conventional photodynamic therapy (PDT) is limited by its penetration depth due to the photosensitizer and light source. In this study, we developed X-ray induced photodynamic therapy that applied X-ray as the light source to activate Ce-doped CaCO₃ (CaCO₃:Ce) to generate
Daniel Preisig et al.
European journal of pharmaceutics and biopharmaceutics : official journal of Arbeitsgemeinschaft fur Pharmazeutische Verfahrenstechnik e.V, 87(3), 548-558 (2014-02-27)
Drug loading into porous carriers may improve drug release of poorly water-soluble drugs. However, the widely used impregnation method based on adsorption lacks reproducibility and efficiency for certain compounds. The aim of this study was to evaluate a drug-loading method
Shinya Yamada et al.
Bio-medical materials and engineering, 28(1), 47-56 (2017-03-09)
Inorganic ions released from bioceramics and bioactive glasses have been reported to influence osteogenic cell functions. Cell responses depend on types of the ions provided, for example, silicate ion has been found to up-regulate their proliferation, differentiation and mineralization. Mouse
Melany Gilis et al.
Journal of morphology, 275(12), 1349-1365 (2014-06-27)
Calcium carbonate biomineralization of scleractinian coral recruits is fundamental to the construction of reefs and their survival under stress from global and local environmental change. Establishing a baseline for how normal, healthy coral recruits initiate skeletal formation is, therefore, warranted.
Cheng Wang et al.
International journal of nanomedicine, 14, 1503-1517 (2019-03-19)
The application of mitoxantrone (MIT) in cancer therapy has been severely limited by its inherent drawbacks. In addition, effective cancer therapy calls for drug release systems capable of enforcing drug release within cancer cells in response to infinite stimulant with
Jack Campbell et al.
ACS applied materials & interfaces, 13(2), 3259-3269 (2021-01-08)
The polymer layer-by-layer assembly is accounted among the most attractive approaches for the design of advanced drug delivery platforms and biomimetic materials in 2D and 3D. The multilayer capsules can be made of synthetic or biologically relevant (e.g., natural) polymers.
H J M Henk-Marijn de Jonge et al.
Nederlands tijdschrift voor geneeskunde, 156(34), A4343-A4343 (2012-08-24)
Various calcium supplements are available for patients who have an indication for calcium suppletion. American guidelines and UpToDate recommend prescribing calcium citrate to patients who use antacids The rationale for this advice is that water-insoluble calcium carbonate needs acid for
Ofelia Maniti et al.
Journal of liposome research, 25(2), 122-130 (2014-09-16)
Conventional liposomes have a short life-time in blood, unless they are protected by a polymer envelope, most often polyethylene glycol. However, these stabilizing polymers frequently interfere with cellular uptake, impede liposome-membrane fusion and inhibit escape of liposome content from endosomes.
Yukiko Nakao et al.
International journal of biological macromolecules, 141, 783-791 (2019-09-10)
CaCO3 mineralization was carried out using cellulose nanocrystal (CNC)/polymer composites wherein a chiral nematic structure of CNC assembly was immobilized in advance via a polymerization process of the precursory aqueous CNC/vinyl monomer lyotropics (7-11 wt% CNC in feed). Two series of
Munlika Bootklad et al.
Carbohydrate polymers, 97(2), 315-320 (2013-08-06)
Thermoplastic starch (TPS) was prepared using compression molding and chicken eggshell was used as a filler. The effect of the eggshell powder (EP) on the properties of TPS was compared with the effect of commercial calcium carbonate (CC). The organic
Dongni Ren et al.
Micron (Oxford, England : 1993), 42(3), 228-245 (2010-10-19)
The review focuses on the effects of several important additives and templates controlling the calcium carbonate crystals formation and the complexity of the crystal morphologies in vitro. Additives include soluble matrices extracted from shells and pearls, amino-acids, magnesium ions and
Anthony J Giuffre et al.
Proceedings of the National Academy of Sciences of the United States of America, 110(23), 9261-9266 (2013-05-22)
Calcified skeletons are produced within complex assemblages of proteins and polysaccharides whose roles in mineralization are not well understood. Here we quantify the kinetics of calcite nucleation onto a suite of high-purity polysaccharide (PS) substrates under controlled conditions. The energy
Julyan H E Cartwright et al.
Angewandte Chemie (International ed. in English), 51(48), 11960-11970 (2012-11-06)
Although the polymorphism of calcium carbonate is well known, and its polymorphs--calcite, aragonite, and vaterite--have been highly studied in the context of biomineralization, polyamorphism is a much more recently discovered phenomenon, and the existence of more than one amorphous phase
Andrónico Neira-Carrillo et al.
Journal of structural biology, 199(1), 46-56 (2017-05-17)
Gastroliths are highly calcified structures formed in the cardiac stomach wall of crustaceans for the temporary storage of amorphous CaCO
Denis Gebauer et al.
Nanoscale, 3(9), 3563-3566 (2011-08-19)
Nanocellulose hybrids are promising candidates for biodegradable multifunctional materials. Hybrids of nanocrystalline cellulose (NCC) and amorphous calcium carbonate (ACC) nanoparticles were obtained through a facile chemical approach over a wide range of compositions. Controlling the interactions between NCC and ACC
Emad Tolba et al.
Biotechnology journal, 15(12), e2000101-e2000101 (2020-06-05)
Cement is used both as a construction material and for medical applications. Previously, it has been shown that the physiological polymer inorganic polyphosphate (polyP) is morphogenetically active in regeneration of skin, bone, and cartilage. The present study investigates the question
Depeng Liu et al.
Materials science & engineering. C, Materials for biological applications, 90, 180-188 (2018-06-02)
Dissolving microneedles (MNs) display high efficiency, safety and painless in transdermal delivery for poorly permeable drugs. Here, a dissolving composite MNs prepared from insulin-loaded CaCO3 microparticles (INS-CaCO3 MPs) and poly(vinyl pyrrolidone) (PVP) as matrix were fabricated with two-step centrifuging and
Rezvan Yazdian-Robati et al.
Drug development and industrial pharmacy, 45(4), 603-610 (2019-01-12)
To explore the effect of combination therapy of epirubicin (Epi) and melittin (Mel) to cancer cells, calcium carbonate nanoparticles (CCN), as carriers, were developed which were modified with MUC1-Dimer aptamers as targeting agents. Both Epi and Mel were delivered at
Giulia Magnabosco et al.
Advanced healthcare materials, 4(10), 1510-1516 (2015-06-03)
Doxorubicin (DOX)/CaCO3 single crystals act as pH responsive drug carrier. A biomimetic approach demonstrates that calcite single crystals are able, during their growth in the presence of doxorubicin, to entrap drug molecules inside their lattice along specific crystallographic directions. Alterations
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