PDF(Pubmed)
Abstract：
The structural biopolymer spongin in the form of a 3D scaffold resembles in shape and size numerous species of industrially useful marine keratosan demosponges. Due to the large-scale aquaculture of these sponges worldwide, it represents a unique renewable source of biological material, which has already been successfully applied in biomedicine and bioinspired materials science. In the present study, spongin from the demosponge Hippospongia communis was used as a microporous template for the development of a new 3D composite containing goethite [α-FeO(OH)]. For this purpose, an extreme biomimetic technique using iron powder, crystalline iodine, and fibrous spongin was applied under laboratory conditions for the first time. The product was characterized using SEM and digital light microscopy, infrared and Raman spectroscopy, XRD, thermogravimetry (TG/DTG), and confocal micro X-ray fluorescence spectroscopy (CMXRF). A potential application of the obtained goethite-spongin composite in the electrochemical sensing of dopamine (DA) in human urine samples was investigated, with satisfactory recoveries (96% to 116%) being obtained.
摘要：
3D支架形式的结构生物聚合物海绵体在形状和大小上类似于许多工业上有用的海洋角蛋白脱毛海绵。由于这些海绵在全球范围内的大规模水产养殖，它代表了生物材料的独特可再生来源，已成功应用于生物医学和生物启发材料科学。在本研究中,来自DemospongeHippospongiacommunis的海绵被用作微孔模板，用于开发包含针铁矿[α-FeO（OH）]的新型3D复合材料。为此,使用铁粉的极端仿生技术，结晶碘，纤维海绵首次在实验室条件下应用。使用SEM和数字光学显微镜对产品进行了表征，红外和拉曼光谱，XRD,热重法（TG/DTG），和共聚焦显微X射线荧光光谱(CMXRF)。研究了所获得的针铁矿-海绵复合物在人尿液样品中多巴胺（DA）的电化学传感中的潜在应用，获得了令人满意的回收率(96%至116%)。
