“…At around 500 °C, the PVP calcinates as it was determined by differential scanning calorimeter test results, leaving a network of “fibers” similar to the CuO fibers shown in Figure 9 from reference [ 40 ]. However, these “fibers” were made of WO 3 crystals in contact with CuO crystals [ 41 ]. This network of metal oxide fibers, or “nanogrid”, exhibits photocatalytic properties.…”
This perspective involves two types of functional nanomaterials, amyloid fibrils and metal oxide nanowires and nanogrids. Both the protein and the inorganic nanomaterials rely on their polymorphism to exhibit diverse properties that are important to sensing and catalysis. Several examples of novel functionalities are provided from biomarker sensing and filtration applications to smart scaffolds for energy and sustainability applications.
“…At around 500 °C, the PVP calcinates as it was determined by differential scanning calorimeter test results, leaving a network of “fibers” similar to the CuO fibers shown in Figure 9 from reference [ 40 ]. However, these “fibers” were made of WO 3 crystals in contact with CuO crystals [ 41 ]. This network of metal oxide fibers, or “nanogrid”, exhibits photocatalytic properties.…”
This perspective involves two types of functional nanomaterials, amyloid fibrils and metal oxide nanowires and nanogrids. Both the protein and the inorganic nanomaterials rely on their polymorphism to exhibit diverse properties that are important to sensing and catalysis. Several examples of novel functionalities are provided from biomarker sensing and filtration applications to smart scaffolds for energy and sustainability applications.
“…The uncommon process of electrospinning involves the electrostatic drawing of continuous fibers that can be collected in an aligned state or as nonwoven mats. 17,18 While this technique was originally developed for polymer systems, significant and relatively simply adaptations to well-established sol-gel processes have made electrospinning available to ceramics processing. Both single crystal and polycrystalline ceramic fiber configurations, as well as 3D self-supported mats, have been reported.…”
Section: Electrospun Fibers and Preforms Of High Temperature Ceramicsmentioning
This document summarizes key research directions as they emerged during the proceedings of the Inaugural Orton Workshop that aimed to define scientific areas of current interest to the ceramics community around the theme of: "High Temperature Ceramics and Composites for Extreme Environments." The topic was selected due to the timely interest in such materials to meet the needs of hypersonic aviation and space exploration and habitation. Experts from funding agencies supporting ceramics research, thought-leaders from academia with expertise spanning materials processing, characterization, and modeling, as well as research and development leaders from key (aviation-related) industries, gathered to evaluate the state-of-the-art in this field and to address key questions with the intent of accelerating research and development efforts on all fronts. Highlights of the work presented and of the discussion and brainstorming sessions are provided here. It was the purpose of the organizers (The Orton Ceramic Foundation and the Orton Chair in Ceramic Engineering at OSU) to establish this event as a service to the Ceramics community in the spirit the founder of the field of Ceramic Engineering, Dr. Edward Orton Jr.
“…Not only may the collector shape be changed in the electrospinning set up, there is a wide range of spinneret configurations currently used to achieve different objectives such as hollow and core-shell nanofibers. 49 In the coaxial electrospinning setup a multiple solution feed system is used, which allows the injection of one solution into another at the tip of the spinneret. Here, the outer fluid acts as a carrier which draws in the inner fluid at the Taylor cone of the electrospinning jet.…”
Electrospinning is a versatile technique for generating a mat of continuous fibers with diameters from a few nanometers to several micrometers. The diversity of electrospinnable materials, and the unique features associated with electrospun fibers make this technique and its resultant structures attractive for applications in the biomedical field. This article presents an overview of this technique focusing on its application for tissue engineering. In particular, the advantages and disadvantages of using an electrospinning mat for biomedical applications are discussed. It reviews the different available electrospinning configurations, detailing how the different process variables and material types determine the obtained fibers characteristics. Then a description of how nanofiber based scaffolds offer great promise in the regeneration or function restoration of damaged or diseased bones, muscles or nervous tissue is reported. Different methods for incorporating active agents on nanofibers and controlling their release mechanisms are also reviewed. The review concludes with some personal perspectives on the future work to be done in order to include electrospinning technique in the industrial development of biomedical materials.
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