We have developed a multi-material 3D printing platform that is high-resolution, low-cost, and extensible. The key part of our platform is an integrated machine vision system. This system allows for self-calibration of printheads, 3D scanning, and a closed-feedback loop to enable print corrections. The integration of machine vision with 3D printing simplifies the overall platform design and ena...

Advances in catheter-based interventions in structural and congenital heart disease have mandated an increased demand for three-dimensional (3D) visualisation of complex cardiac anatomy. Despite progress in 3D imaging modalities, the pre- and periprocedural visualisation of spatial anatomy is relegated to two-dimensional flat screen representations. 3D printing is an evolving technology based o...

Electroporation is one of the most widely used transfection methods because of its high efficiency and convenience among the various transfection methods. Previous micro-electroporation systems have some drawbacks such as limitations in height and design, time-consuming and an expensive fabrication process due to technical constraints. This study fabricates a three dimensional microelectrode us...

Meet us at Photonics West North Hall Booth 4320 In recent years, 3D printing has attracted increasing attention in many industries. From bioprinting of living organs to engine and airplane components, a variety of 3D printing techniques are already in use today, mainly differentiated by the additive or subtractive manufacturing approach. But what’s the application potentiality in the med-tech i...

This study evaluated the manufacturing of metal–polymer hybrid parts using a 3-axis desktop Fused Filament Fabrication (FFF) printer. Two printing strategies were employed: more trivial one, consisting 3D-printing polymer directly onto metal surface, and an alternative encasing with printed polymer. Materials used Ti-6Al-4V (both rolled/sandblasted 3D-printed by laser powder bed fusion) polyami...

Stem cell theranostics has received much attention for noninvasively monitoring and tracing transplanted therapeutic stem cells through imaging agents and imaging modalities. Despite the excellent regenerative capability of stem cells, their efficacy has been limited due to low cellular retention, low survival rate, and low engraftment after implantation. Three-dimensional (3D) cell printing pr...

Although 3D objects to be printed may have “natural direction” or intended direction for printing, most 3D printing methods slice and print them horizontally. This causes staircase effect on the surface and prevents expression of the natural or intended direction; that is, the natural direction and the printing direction contradict. This paper proposes a methodology for direction-specified 3D p...

The rapid development in additive manufacturing (AM), also known as 3D printing, has brought about potential risk and security issues along with significant benefits. In order to enhance the security level of the 3D printing process, the present research aims to detect and recognize illegal components using deep learning. In this work, we collected a dataset of 61,340 2D images (28×28 for each ...

Three-dimensional printing (3DP) is a unique prototyping technology that has advanced over the past 35 years and has the great potential to revolutionize the field of drug delivery with its inherent advantages of customizability and the ability to fabricate complex solid dosage forms with high accuracy and precision. 3DP can fabricate solid dosage forms with variable densities and diffusivities...

PURPOSE The major problem in producing artificial livers is that primary hepatocytes cannot be cultured for many days. Recently, 3-dimensional (3D) printing technology draws attention and this technology regarded as a useful tool for current cell biology. By using the 3D bio-printing, these problems can be resolved. METHODS To generate 3D bio-printed structures (25 mm × 25 mm), cells-alginate...