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Alginate derivative was prepared to be coated on titanium surface for improving osseointegration. It was modified by reaction of alginate and 3-aminopropylphosphonic acid. The phosphonate group of P-alginate was identified by 31P NMR. There was a specific peak derived from phosphonate group at about 24 ppm form external standard. X-Ray photoelectron spectroscopy (XPS) and water contact angle measurement...
For improving cell adhesion on titanium surface, phosphonated low-molecular-weight chitosan (P-LMC) was prepared by introducing a phosphonate group of 4-phosphonobutyric acid to low-molecular-weight chitosan (3,000<MW<10,000). The phosphonate group of P-LMC was identified by 31P NMR. At about 30 ppm from external standard, there was a specific peak derived from phosphonate group. X-Ray Photoelectron...
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