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基于鸡骨提取的生物相容的 dahllite/羟基磷灰石/胶原蛋白填充剂的聚砜膜用于透析。

Biocompatible chicken bone extracted dahllite/hydroxyapatite/collagen filler based polysulfone membrane for dialysis.

机构信息

Department of Chemical Engineering, COMSATS University Islamabad, Lahore Campus, Pakistan.

Department of Chemical Engineering, University of Gujrat, Punjab, Pakistan.

出版信息

Int J Artif Organs. 2022 Jan;45(1):14-26. doi: 10.1177/0391398821994119. Epub 2021 Mar 11.

Abstract

In the current study, dahllite/hydroxyapatite/collagen filler extracted via calcination of wasted chicken bone was blended with PSf polymer to obtain highly biocompatible, and antifoulant hemodialysis membranes. FTIR and Raman spectroscopic analysis was done to obtain information about the bonding chemistry of the obtained filler. The intermolecular interaction that existed between dahllite/hydroxyapatite/collagen filler and pristine PSf was confirmed by Raman spectroscopic study. The PSf polymer exhibited a sponge-like structure owing to its high thickness and slow exchange with non-solvent in coagulation bath whilst the instantaneous de-mixing course produced finger-like capillaries in dahllite/hydroxyapatite/collagen filler based PSf membranes as exposed by SEM photographs. The presence of different wt. % of filler composition in the PSf matrix improved the mechanical strength as revealed by fatigue analysis. The hydrophilic character improved by 78% while leaching consistency adjusted to 0%-4%. Pure water permeation (PWP) flux improved by nine times. The pore profile improved with the addition of filler as revealed by hydrophilicity experiment, PWP flux, and SEM micrographs. Fouling evaluation results disclosed that filler based membranes showed 36% less adsorption of protein (BSA) solution together with more than 84% flux recovery ratio. The biocompatibility valuation analysis unveiled that membranes composed of filler showed extended prothrombin and thrombin coagulation times, reduced activation of fibrinogen mass, and less adhesion of plasma proteins in comparison with pristine PSf membrane. The adsorption capacity of fabricated membranes for urea and creatinine improved by 31% (in the case of urea) and 34% (in the case of creatinine) in contrast with pristine PSf membrane. The overall results showed that the M-3 membrane was optimized in terms of surface properties, protein adhesion, anticoagulation activity, and adsorption amount of urea and creatinine.

摘要

在当前的研究中,通过煅烧废弃鸡骨提取的 dahllite/羟基磷灰石/胶原蛋白填充剂与 PSf 聚合物混合,获得了高度生物相容和抗污的血液透析膜。通过傅里叶变换红外光谱和拉曼光谱分析获得了所得填充剂的键合化学信息。通过拉曼光谱研究证实了 dahllite/羟基磷灰石/胶原蛋白填充剂与原始 PSf 之间存在的分子间相互作用。由于 PSf 聚合物的厚度较高,并且在凝固浴中的非溶剂交换缓慢,因此表现出海绵状结构,而在 dahllite/羟基磷灰石/胶原蛋白填充剂基 PSf 膜中,瞬间的去混合过程产生了手指状的毛细血管,如 SEM 照片所示。PSf 基质中存在不同重量%的填充剂成分提高了疲劳分析所揭示的机械强度。亲水性提高了 78%,同时浸出一致性调整为 0%-4%。纯水渗透(PWP)通量提高了九倍。通过亲水性实验、PWP 通量和 SEM 显微照片揭示了添加填充剂后孔道形态得到改善。污垢评估结果表明,与原始 PSf 膜相比,填充剂基膜的蛋白质(BSA)溶液吸附减少了 36%,通量恢复率超过 84%。生物相容性评估分析表明,与原始 PSf 膜相比,填充剂组成的膜显示出更长的凝血酶原和凝血酶凝固时间、减少的纤维蛋白原质量激活以及血浆蛋白的粘附减少。与原始 PSf 膜相比,制备的膜对尿素和肌酐的吸附能力分别提高了 31%(尿素)和 34%(肌酐)。总体结果表明,M-3 膜在表面性能、蛋白质粘附、抗凝血活性以及尿素和肌酐的吸附量方面得到了优化。

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