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首页> 外文期刊>RSC Advances >Synthesis of peptide nanofibers decorated with palladium nanoparticles and its application as an efficient catalyst for the synthesis of sulfides via reaction of aryl halides with thiourea or 2-mercaptobenzothiazole
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Synthesis of peptide nanofibers decorated with palladium nanoparticles and its application as an efficient catalyst for the synthesis of sulfides via reaction of aryl halides with thiourea or 2-mercaptobenzothiazole

机译：用钯纳米粒子装饰的肽纳米纤维的合成及其作为硫酸芳基或2-巯基苯唑的反应合成硫化硫化物的有效催化剂

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In this work supported Pd nanoparticles on a peptide nanofiber (PdNP-PNF) have been prepared via fabrication of self-assembled woven nanofiber from peptide, subsequently immobilization of palladium nanoparticles on this nanostructural compound. To obtain self-assembled woven nanofiber, we designed and synthesized a peptide using arginine as building block. The C-terminus of amino acid was protected as ethylester. Coupling was mediated by dicyclohexylecarbodiimide-1-hydroxybenzotriazole (DCC-HOBT). TEM, SEM, XRD, ICP and FT-IR techniques were employed to characterize prepared nanofiber materials. In this work, the effect of phosphate buffer solutions pH 8 and pH 11 (isoelectric point of arginine amino acid) on the structure of peptide nanofiber was investigated. Supported Pd nanoparticles on the peptide nanofiber (PdNP-PNF) were applied for the C-S coupling reaction using two different sulfur transfer reagents (thiourea and 2-mercaptobenzothiazole).
机译：在该工作中，通过制造来自肽的自组装编织纳米纤维的肽纳米纤维（PDNP-PNF）的支持的Pd纳米颗粒，随后在该纳米结构化合物上固定钯纳米颗粒。 为了获得自组装的编织纳米纤维，我们使用精氨酸作为构建块设计和合成肽。 氨基酸的C-末端被保护为乙酯。 偶联由二环己酰基二酰亚胺-1-羟基苯并三唑（DCC-HOBT）介导。 采用TEM，SEM，XRD，ICP和FT-IR技术表征制备的纳米纤维材料。 在这项工作中，研究了研究磷酸盐缓冲溶液pH8和pH11（精氨酸氨基酸的等电点）对肽纳米纤维结构的影响。 使用两种不同的硫转移试剂（Thiourea和2-巯基噻唑）施加肽纳米纤维（PDNP-PNF）上的C-S偶联反应的支持的PD纳米颗粒。

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