3D hierarchically aligned nanofiber scaffolds promote cell migration for tissue regeneration in ssalimpour

In order to manipulate the complex behavior of cells in a 3-dimensional (3D) environment, it is important to provide the microenvironment that can accurately portray the complexity of highly anisotropic tissue structures. However, it is technically challenging to generate a complex microenvironment using conventional biomaterials that are mostly isotropic with limited bioactivity. In this study, the gelatin-hyaluronic acid hydrogel incorporated with aqueous-dispersible, short nanofibers capable of in situ alignment is developed to emulate the native heterogeneous extracellular matrix consisting of fibrous and non-fibrous components. The gelatin nanofibers containing magnetic nanoparticles, 2024-05-01

Synthesis of polyaniline nanofiber has been carried out using interfacial polymerization method. Polyaniline nanofiber was a material of interest for biosensors because this material was capable and effective as a mediator for electron transfer in redox and enzymatic reactions. The surface morphology of polyaniline nanofiber was much wider than conventional polyaniline, resulting in the process of molecular diffusion into the polyaniline nanofiber structure being faster and the penetration of molecules deeper, thus having the potential to increase the sensitivity and responsiveness of a sensor. The interfacial polymerization method used includes a water phase (dopant, 2024-06-01

Green polymers and nanocomposites are noticed by researchers in the environmental fields. Among them, starch, polylactic acid, and cellulose nanofiber (CNF) are eco-friendly. In the present study, thermoplastic bio-nanocomposites of starch/cellulose nanofiber (SN), polylactic acid/cellulose nanofiber (PN), and starch/polylactic acid/cellulose nanofiber (SPN) are prepared by film casting. The effect of nanofibers is investigated by X-ray diffraction (XRD), scanning electron microscopy (SEM), mechanical properties, and water vapor permeability (WVP) of films. Results show that the mechanical properties of SN and PN improve with the addition of CNFs due to their uniform dispersion which are 2024-10-01

Field-effect transistors (FETs) based on indium oxide (In2O3) nanofibers demonstrate significant potential for applications in next-generation electronic devices. However, In2O3 nanofiber FETs typically exhibit deteriorated electrical performance and bias stability due to the disordered arrangement of nanofibers and a high concentration of oxygen vacancy defects. In this study, In2O3 nanofibers were prepared by electrospinning, and the effects of nanofiber orientation and Y2O3 passivation on FET electrical performance were systematically investigated. The results indicate that after Y2O3 passivation, the aligned In2O3 nanofiber FETs exhibit enhanced electrical performance and superior 2025-02-01

AbstractThe recent COVID-19 pandemic has amplified concerns about indoor air quality, emphasizing the need for effective air filtration solutions to... 2025-06-01