ISSN:
1013-9826
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Calcium phosphate (CaP) biomaterials containing Chinese medicine, Danshen (SalviaMiltiorrhiza Bunge, SMB), have been synthesized in our previous study via the wet chemicalmethod. However, CaP biomaterials were generally synthesized in the alkaline solution. Thepurpose of the present study was to investigate the effect of pH on SMB and the influence of SMBon the synthesis of CaP biomaterials. The SMB solutions of different pH from 5.0 to 10.0, werescanned with the UV-VIS spectrophotometer (UV-VIS) in the wavelength ranged from 200.00 to400.00 nm. CaP biomaterials containing SMB were synthesized from (NH4)2HPO4, Ca(NO3)2,NH4OH and SMB. The filtrates of the wet synthesis of CaP biomaterials containing SMB weremeasured by UV-VIS. The synthesized CaP biomaterials containing SMB were characterized by theX-ray diffraction (XRD) and Fourier-transform infrared spectroscopy (FTIR). The results showedthat the maximum absorption peak appeared at 281.00 nm for solutions of pH 5.0, 6.0 and 7.0.Although there were a new absorption peaks as the pH were 8.0 and 9.0, the absorption curves ofSMB became similar to that of SMB as pH at 7.0 after the pH were readjusted to 7.0. Theabsorption peak appeared an Einstein shift to 347.00 nm at pH 10.0, which did not return to 281.00nm when the pH of SMB solution was readjusted to 7.0. The absorption peak of filtrates containingSMB of CaP biomaterials reaction system was still at 281.00 nm when their pH was 7.0 and 8.0.Moreover, SMB had no obvious effect on the phase component and functional groups of products.Hence, it could be predicted that calcium phosphate biomaterials containing SMB, such as DCPDand TCP containing SMB, which could be prepared at the pH ranged from 5.0 to 9.0
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/53/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.330-332.1033.pdf
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