摘要

2-噻吩羧基醛对生物羟基磷灰石颗粒的表面改性

作者(年代):Bayram Kizilkaya, Nail Ucyol和A. Adem Tekinay

本研究探讨了生物羟基磷灰石是否适合化学改性。采用硅烷化和shiff碱反应，分两步对骨颗粒表面进行化学改性。鱼骨被用作生物羟基磷灰石，并被清洗，以便为化学过程做好准备。对鱼骨颗粒表面进行化学修饰。首先，用3-氨基丙基三乙基硅烷(S1)对鱼骨表面进行硅烷化，得到分子中游离胺(-NH2)基团。然后，将存在于骨表面的胺基与含有醛基的2-噻吩羧基醛(B4)反应。采用FT-IR、SEM-EDS、TGA和Zeta电位对材料进行了分析。在SEM-EDS分析中，S1和B4分子的硅(Si)和硫(S)元素带可以清晰地看到。研究了未改性骨磷灰石(H)、改性骨3-氨基丙基三乙氧基硅烷(HS1)和2-噻吩羧基醛(HS1B4)的零电荷点(Pzc)，分别为7.25、7.72和7.57。H、HS1和HS1B4中氮含量分别为8.031、8.291和0.916%。 2-thiophenecarboxaldehyde bonded on the surface of bone was calculated as 143.4 μmol g-1. The results showed that surface modification was performed successfully. BET surface area of the unprocessed apatite is 5.65 m2g-1 and the surface area of modified apatite HS1B4 is 2.95 m2 g-1. This study was shown that waste fish bones occurring waste and non-economic value as industrial is to be suitable for chemical modifications and it could be effectively converted to different materials.