Three-Dimensional Zirconia-Based Scaffolds for Load-Bearing Bone-Regeneration Applications: Prospects and Challenges

The design of zirconia-based scaffolds using conventional techniques for bone-regeneration applications has been studied extensively. Similar to dental applications, the use of three-dimensional (3D) zirconia-based ceramics for bone tissue engineering (BTE) has recently attracted considerable attention because of their high mechanical strength and biocompatibility. However, techniques to fabricate zirconia-based scaffolds for bone regeneration are in a stage of infancy. Hence, the biological activities of zirconia-based ceramics for bone-regeneration applications have not been fully investigated, in contrast to the well-established calcium phosphate-based ceramics for bone-regeneration applications. This paper outlines recent research developments and challenges concerning numerous three-dimensional (3D) zirconia-based scaffolds and reviews the associated fundamental fabrication techniques, key 3D fabrication developments and practical encounters to identify the optimal 3D fabrication technique for obtaining 3D zirconia-based scaffolds suitable for real-world applications. This review mainly summarized the articles that focused on in vitro and in vivo studies along with the fundamental mechanical characterizations on the 3D zirconia-based scaffolds.

Augmented Virtuality Using Touch-Sensitive 3D-Printed Objects

Virtual reality (VR) technologies have become more and more affordable and popular in the last five years thanks to hardware and software advancements. A critical issue for these technologies is finding paradigms that allow user interactions in ways that are as similar as possible to the real world, bringing physicality into the experience. Current literature has shown, with different experiments, that the mapping of real objects in virtual reality alongside haptic feedback significantly increases the realism of the experience and user engagement, leading to augmented virtuality. In this paper, we present a system to improve engagement in a VR experience using inexpensive, physical, and sensorized copies of real artefacts made with cheap 3D fabrication technologies. Based on a combination of hardware and software components, the proposed system gives the user the possibility to interact with the physical replica in the virtual environment and to see the appearance of the original cultural heritage artefact. In this way, we overcome one of the main limitations of mainstream 3D fabrication technologies: a faithful appearance reproduction. Using a consumer device for the real-time hand tracking and a custom electronic controller for the capacitive touch sensing, the system permits the creation of augmented experiences where the user with their hands can change the virtual appearance of the real replica object using a set of personalization actions selectable from a physical 3D-printed palette.

Anatomy Of A Dress: Constructing A Narrative Within A Museum Setting

Anatomy of a Dress utilises object-based research to explore exhibition design and display. The goal of this project is to challenge the static nature of garment display in a museum or a gallery setting. This investigation materialises in the form of a small exhibition pavilion, using a 1950s ballgown by Julian Rose from the Ryerson Fashion Research Collection as its primary subject matter. The dress was analysed through a series of explorations, including technical drawings, x-rays, and 3D fabrication, all of which informed the design of the exhibition.

Anatomy Of A Dress: Constructing A Narrative Within A Museum Setting

Anatomy of a Dress utilises object-based research to explore exhibition design and display. The goal of this project is to challenge the static nature of garment display in a museum or a gallery setting. This investigation materialises in the form of a small exhibition pavilion, using a 1950s ballgown by Julian Rose from the Ryerson Fashion Research Collection as its primary subject matter. The dress was analysed through a series of explorations, including technical drawings, x-rays, and 3D fabrication, all of which informed the design of the exhibition.