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Abstrakty
We have prepared carboxymethyl cellulose fibers (CMC) by chemically modifying cotton cellulose with monochloroacetic acid and calcium chloride solution. This modification favored the growth of hydroxyapatite (HAP) on the surface of the CMC fibers in contact with simulated body fluid solutions (SBF). After soaking in SBF for periods of 7, 14 and 21 days, formation of HAP was observed. Analysis by scanning electron microscopy and X-ray diffraction showed that crystallinity, crystallite size, and growth of HAP increased with the soaking time. The amount of HAP deposited on CMC fibers increased greatly after 21 days of immersion in the SBF, while the substrate surface was totally covered with hemispherical aggregates with the size of the order of 2 microns. Elemental analysis showed the presence of calcium and phosphate, with calcium/phosphate atomic ratio of 1.54. Fourier transform infrared spectroscopy bands confirmed the presence of HAP. The results suggest that cotton modified by calcium treatment has a nucleating ability and can accelerate the nucleation of HAP crystals.
Słowa kluczowe
Wydawca
Czasopismo
Rocznik
Tom
Strony
436—441
Opis fizyczny
Bibliogr. 33 poz., rys., wykr.
Twórcy
autor
- Centro Universitario de Vinculacion y Transferencia de Tecnologıa, Benemerita Universidad Autonoma de Puebla, Prolongacion de la 24 Sury Av. San Claudio. Col. San Manuel. Ciudad Universitaria. C.P. 72570, Puebla, Puebla. Mexico
autor
- Centro Universitario de Vinculacion y Transferencia de Tecnologıa, Benemerita Universidad Autonoma de Puebla, Prolongacion de la 24 Sury Av. San Claudio. Col. San Manuel. Ciudad Universitaria. C.P. 72570, Puebla, Puebla. Mexico
autor
- Centro Universitario de Vinculacion y Transferencia de Tecnologıa, Benemerita Universidad Autonoma de Puebla, Prolongacion de la 24 Sury Av. San Claudio. Col. San Manuel. Ciudad Universitaria. C.P. 72570, Puebla, Puebla. Mexico
autor
- Centro Universitario de Vinculacion y Transferencia de Tecnologıa, Benemerita Universidad Autonoma de Puebla, Prolongacion de la 24 Sury Av. San Claudio. Col. San Manuel. Ciudad Universitaria. C.P. 72570, Puebla, Puebla. Mexico
autor
- Centro Universitario de Vinculacion y Transferencia de Tecnologıa, Benemerita Universidad Autonoma de Puebla, Prolongacion de la 24 Sury Av. San Claudio. Col. San Manuel. Ciudad Universitaria. C.P. 72570, Puebla, Puebla. Mexico
Bibliografia
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Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-86617e72-2081-48ce-9123-bea722fd5cc8