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Study on the use of 3‐aminopropyltriethoxysilane and 3‐chloropropyltriethoxysilane to surface biochemical modification of a novel low elastic modulus Ti–Nb–Hf alloy
Journal of Biomedical Materials Research Part B: Applied Biomaterials ( IF 3.2 ) Pub Date : 2014-06-09 , DOI: 10.1002/jbm.b.33226
V. Paredes 1, 2 , E. Salvagni 1, 2 , E. Rodríguez‐Castellon 3 , F. J. Gil 1, 4 , J. M. Manero 1, 2, 4
Affiliation  

A biocompatible new titanium alloy Ti–16Hf–25Nb with low elastic modulus (45 GPa) and the use of short bioadhesive peptides derived from the extracellular matrix have been studied. In terms of cell adhesion, a comparative study with mixtures of short peptides as RGD (Arg‐Gly‐Asp)/PHSRN (Pro‐His‐Ser‐Arg‐Asn) and RGD (Arg‐Gly‐Asp)/FHRRIKA (Phe‐His‐Arg‐Arg‐Ile‐Lys‐Ala) have been carried out with rat mesenchymal cells. The effect of these mixtures of short peptides have already been studied but there are no comparative studies between them. Despite the wide variety of silane precursors available for surface modification in pure titanium, the majority of studies have used aminosilanes, in particular 3‐minopropyltriethoxysilane (APTES). Nevertheless, the 3‐chloropropyltriethoxysilane (CPTES) is, recently, proposed by other authors. Unlike APTES, CPTES does not require an activation step and offers the potential to directly bind the nucleophilic groups present on the biomolecule (e.g., amines or thiols). Since the chemical surface composition of this new alloy could be different to that pure titanium, both organosilanes have been compared and characterized by means of a complete surface characterization using contact angle goniometry and X‐ray photoelectron spectroscopy. © 2014 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 103B:495–502, 2015.

中文翻译:

使用3-氨基丙基三乙氧基硅烷和3-氯丙基三乙氧基硅烷对新型低弹性模量Ti–Nb–Hf合金进行表面生化改性的研究

已经研究了具有低弹性模量(45 GPa)的生物相容性新型钛合金Ti–16Hf–25Nb,并使用了源自细胞外基质的短生物粘附肽。在细胞粘附方面,一项比较研究包括RGD(Arg-Gly-Asp)/ PHSRN(Pro-His-Ser-Arg-Asn)和RGD(Arg-Gly-Asp)/ FHRRIKA(Phe- His-Arg-Arg-Ile-Lys-Ala)已用大鼠间充质细胞进行。已经研究了这些短肽混合物的作用,但是它们之间没有比较研究。尽管在纯钛中可用于表面改性的硅烷前体种类繁多,但大多数研究都使用了氨基硅烷,尤其是3-氨基丙基三乙氧基硅烷(APTES)。然而,最近,其他作者提出了3-氯丙基三乙氧基硅烷(CPTES)。与APTES不同,CPTES不需要激活步骤,并且具有直接结合生物分子上存在的亲核基团(例如胺或硫醇)的潜力。由于这种新合金的化学表面成分可能不同于纯钛,因此已经对两种有机硅烷进行了比较和表征,方法是使用接触角测角法和X射线光电子能谱对它们进行完整的表面表征。©2014 Wiley Periodicals,Inc. J Biomed Mater Res B部分:Appl Biomater,103B:495-502,2015年。两种有机硅烷均已进行了比较,并通过使用接触角测角法和X射线光电子能谱进行了完整的表面表征来表征。©2014 Wiley Periodicals,Inc. J Biomed Mater Res B部分:Appl Biomater,103B:495-502,2015年。两种有机硅烷均已进行了比较,并通过使用接触角测角法和X射线光电子能谱进行了完整的表面表征来表征。©2014 Wiley Periodicals,Inc. J Biomed Mater Res B部分:Appl Biomater,103B:495-502,2015年。
更新日期:2014-06-09
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