Zaca Moran Orlando, García Suastegui Wendy Argelia, Cruz San Juan Jonathan Hillel, López Méndez Lawrence Christopher, López Gayou Valentin
Laboratorio de Bionanotecnología, Centro de Investigación en Biotecnología Aplicada, Instituto Politécnico Nacional (IPN-CIBA), Tlaxcala 90700, Mexico.
Instituto de Ciencias, Benemérita Universidad Autónoma de Puebla, Puebla 72570, Mexico.
Polymers (Basel). 2023 Dec 15;15(24):4720. doi: 10.3390/polym15244720.
In the present work, electrospun membranes of polyvinylpyrrolidone (PVP) nanofibers were manufactured using extracts and phenolic fractions of (epazote), (nopal), and (chicken grass). The characterization of the membranes was carried out by scanning electron microscopy and Fourier transform infrared spectroscopy. The membranes synthesized through the use of the extracts generally showed a slight decrease in the diameter of the fibers but an increase in the size of the pores due to the presence of nanoparticles (rosaries) on the surface of the fibers, while the membranes synthesized using the phenolic fraction demonstrated an inversely proportional relationship between the compounds of this family with the diameter of the fibers and the size of the pore, allowing to elucidate part of the polymerization mechanisms of PVP nanofibers, in addition to proposing a reaction mechanism in the interaction between PVP and phenolic compounds for surface functionalization. Likewise, we demonstrate that the generation of reaction seeds through functionalization allows the addition of other compounds to the fibers in the membranes synthesized using the complete extract.
在本研究中，使用土荆芥、仙人掌和繁缕的提取物及酚类组分制备了聚乙烯吡咯烷酮（PVP）纳米纤维的电纺膜。通过扫描电子显微镜和傅里叶变换红外光谱对膜进行了表征。使用提取物合成的膜通常显示纤维直径略有减小，但由于纤维表面存在纳米颗粒（念珠），孔隙尺寸增大，而使用酚类组分合成的膜表明该家族化合物与纤维直径和孔隙尺寸之间呈反比关系，这有助于阐明PVP纳米纤维的部分聚合机制，此外还提出了PVP与酚类化合物表面功能化相互作用的反应机制。同样，我们证明通过功能化产生反应种子能够在使用完整提取物合成的膜中向纤维添加其他化合物。
