3D Bioprinting of Acellular Corneal Stromal Scaffolds with a Low Cost Modified 3D Printer: A Feasibility Study.

Purpose: Loss of corneal transparency is one of the major causes of visual loss, generating a considerable health and economic burden globally. Corneal transplantation is the leading treatment procedure, where the diseased cornea is replaced by donated corneal tissue. Despite the rise of cornea donations in the past decade, there is still a huge gap between cornea supply and demand worldwide.

Higher Computed Tomography (CT) Scan Resolution Improves Accuracy of Patient-specific Mandibular Models When Compared to Cadaveric Gold Standard.

Background: 3D-printed patient-specific anatomical models are becoming an increasingly popular tool for planning reconstructive surgeries to treat oral cancer. Currently there is a lack of information regarding model accuracy, and how the resolution of the computed tomography (CT) scan affects the accuracy of the final model.

Purpose: The primary objective of this study was to determine the CT z-axis resolution necessary in creating a patient specific mandibular model with clinically acceptable accuracy for global bony reconstruction.

Will periodic intravenous injections of conditioned bone marrow cells effectively reduce atherosclerosis?

Maintenance of healthy arteries requires a balance between injuries to the arterial wall and processes of intrinsic arterial repair. Such repair requires the availability of progenitor cells that are local to the wall itself. Progenitor cells from distant reservoirs like the bone marrow may also contribute to repair.

Chemically synthesized metal-oxide-metal segmented nanowires with high ferroelectric response.

A chemical synthesis method is presented for the fabrication of high-definition segmented metal-oxide-metal (MOM) nanowires in two different ferroelectric oxide systems: Au-BaTiO(3)-Au and Au-PbTiO(3)-Au. This method entails electrodeposition of segmented nanowires of Au-TiO(2)-Au inside anodic aluminum oxide (AAO) templates, followed by topotactic hydrothermal conversion of the TiO(2) segments into BaTiO(3) or PbTiO(3) segments. Two-terminal devices from individual MOM nanowires are fabricated, and their ferroelectric properties are measured directly, without the aid of scanning probe microscopy (SPM) methods.