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      Calcium phosphate biomaterials from marine algae. Hydrothermal synthesis and characterisation

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          Abstract

          Calcium phosphate compounds such as Hydroxyapatite (HAp) were prepared by hydrothermal synthesis with phycogenic CaCO3 as starting material. Material obtained was characterised by usual methods (XRD, FTIR, TG, N2-adsorption, SEM and EDX) in order to study its physical-chemical characteristics. The prepared HAp showed that it may be suitable for use as a biomaterial.

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          Most cited references72

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          Infrared and Raman Spectra of Inorganic and Coordination Compounds

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            A robust molecular porous material with high CO2 uptake and selectivity.

            We report MPM-1-TIFSIX, a molecular porous material (MPM) based upon the neutral metal complex [Cu2(adenine)4(TiF6)2], that self-assembles through a hydrogen-bonding network. This MPM is amenable to room-temperature synthesis and activation. Gas adsorption measurements and ideal adsorbed solution theory selectivity predictions at 298 K revealed enhanced CO2 separation performance relative to a previously known variant as well as the highest CO2 uptake and isosteric heat of adsorption yet reported for an MPM. MPM-1-TIFSIX is thermally stable to 568 K and retains porosity and capacity even after immersion in water for 24 h.
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              Steroid control of longevity in Drosophila melanogaster.

              Ecdysone, the major steroid hormone of Drosophila melanogaster, is known for its role in development and reproduction. Flies that are heterozygous for mutations of the ecdysone receptor exhibit increases in life-span and resistance to various stresses, with no apparent deficit in fertility or activity. A mutant involved in the biosynthesis of ecdysone displays similar effects, which are suppressed by feeding ecdysone to the flies. These observations demonstrate the importance of the ecdysone hormonal pathway, a new player in regulating longevity.
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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Journal
                qn
                Química Nova
                Quím. Nova
                Sociedade Brasileira de Química (São Paulo )
                1678-7064
                August 2000
                : 23
                : 4
                : 441-446
                Affiliations
                [1 ] Universidade Federal de Santa Catarina Brazil
                Article
                S0100-40422000000400002
                10.1590/S0100-40422000000400002
                22091307-2174-4ffb-b8f1-05a11271cc34

                http://creativecommons.org/licenses/by/4.0/

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                SciELO Brazil

                Self URI (journal page): http://www.scielo.br/scielo.php?script=sci_serial&pid=0100-4042&lng=en
                Categories
                CHEMISTRY, MULTIDISCIPLINARY

                General chemistry
                hydroxyapatite,calcium phosphate ceramics,algae
                General chemistry
                hydroxyapatite, calcium phosphate ceramics, algae

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