scholarly journals On the intrinsic sterility of 3D printing

PeerJ ◽  
2016 ◽  
Vol 4 ◽  
pp. e2661 ◽  
Author(s):  
Russell Y. Neches ◽  
Kaitlin J. Flynn ◽  
Luis Zaman ◽  
Emily Tung ◽  
Nicholas Pudlo
Keyword(s):  
Cell Culture ◽  
3D Printing ◽  
Fabrication Process ◽  
3D Printers ◽  
3D Printed

3D printers that build objects using extruded thermoplastic are quickly becoming commonplace tools in laboratories. We demonstrate that with appropriate handling, these devices are capable of producing sterile components from a non-sterile feedstock of thermoplastic without any treatment after fabrication. The fabrication process itself results in sterilization of the material. The resulting 3D printed components are suitable for a wide variety of applications, including experiments with bacteria and cell culture.

scholarly journals On the intrinsic sterility of 3D printing

2014 ◽  
Author(s):  
Russell Y Neches ◽  
Kaitlin J. Flynn ◽  
Luis Zaman ◽  
Emily Tung ◽  
Nicholas Pudlo
Keyword(s):  
Cell Culture ◽  
3D Printing ◽  
Fabrication Process ◽  
3D Printers ◽  
3D Printed

3D printers that build objects using extruded thermoplastic are quickly becoming common place tools in laboratories. We demonstrate that with appropriate handling, these devices are capable of producing sterile components from a non-sterile feedstock of thermoplastic without any treatment after fabrication. The fabrication process itself results in sterilization of the material. The resulting 3D printed components are suitable for a wide variety of applications, including experiments with bacteria and cell culture.

scholarly journals On the intrinsic sterility of 3D printing

2016 ◽  
Author(s):  
Russell Y Neches ◽  
Kaitlin J. Flynn ◽  
Luis Zaman ◽  
Emily Tung ◽  
Nicholas Pudlo
Keyword(s):  
Cell Culture ◽  
3D Printing ◽  
Fabrication Process ◽  
3D Printers ◽  
3D Printed

3D printers that build objects using extruded thermoplastic are quickly becoming common place tools in laboratories. We demonstrate that with appropriate handling, these devices are capable of producing sterile components from a non-sterile feedstock of thermoplastic without any treatment after fabrication. The fabrication process itself results in sterilization of the material. The resulting 3D printed components are suitable for a wide variety of applications, including experiments with bacteria and cell culture.

scholarly journals On the intrinsic sterility of 3D printing

2016 ◽  
Author(s):  
Russell Y Neches ◽  
Kaitlin J. Flynn ◽  
Luis Zaman ◽  
Emily Tung ◽  
Nicholas Pudlo
Keyword(s):  
Cell Culture ◽  
3D Printing ◽  
Fabrication Process ◽  
3D Printers ◽  
3D Printed

3D printers that build objects using extruded thermoplastic are quickly becoming common place tools in laboratories. We demonstrate that with appropriate handling, these devices are capable of producing sterile components from a non-sterile feedstock of thermoplastic without any treatment after fabrication. The fabrication process itself results in sterilization of the material. The resulting 3D printed components are suitable for a wide variety of applications, including experiments with bacteria and cell culture.

Designing Inclusion: Using 3D Printing to Maximize Adapted Physical Education Participation

2021 ◽  
pp. 004005992110101
Author(s):  
A. Chloe Simpson ◽  
Andrea Ruth Taliaferro
Keyword(s):  
3D Printing ◽  
Student Success ◽  
Assistive Technology ◽  
Adapted Physical Education ◽  
Physical Educators ◽  
Related Service ◽  
3D Printers ◽  
3D Printed ◽  
Education Participation ◽  
Individual Design

While assistive technology is often suggested as a way to increase, maintain, or improve functional ability for individuals with disabilities within physical activity (PA) settings, cost and availability of such items are often noted as barriers. In recent years, 3D printing has become available to the general public through the adoption of 3D printers in schools, libraries, and universities. Through individual design and rapid prototyping, 3D printing can support physical educators in accommodating student need for assistive technology through a multitude of modification possibilities. This article will highlight the capacity for 3D printed assistive technology within educational settings, and will illustrate how teachers, APE specialists, and other related service personnel can utilize this technology to support student success in PE and PA settings. This article will also assist practitioners with locating, uploading, and utilizing existing collections of 3D assistive technology models from open-source websites, such as Thingiverse.

scholarly journals Evaluation of the Ability to Accurately Produce Angular Details by 3D Printing of Plastic Parts

Machines ◽  
2021 ◽  
Vol 9 (8) ◽  
pp. 150
Author(s):  
Andrei Marius Mihalache ◽  
Gheorghe Nagîț ◽  
Laurențiu Slătineanu ◽  
Adelina Hrițuc ◽  
Angelos Markopoulos ◽  
...  
Keyword(s):  
3D Printing ◽  
Point Of View ◽  
Vertex Angle ◽  
Function Type ◽  
Constant Height ◽  
3D Printers ◽  
3D Printed ◽  
Mathematical Processing ◽  
Plastic Parts

3D printing is a process that has become widely used in recent years, allowing the production of parts with relatively complicated shapes from metallic and non-metallic materials. In some cases, it is challenging to evaluate the ability of 3D printers to make fine details of parts. For such an assessment, the printing of samples showing intersections of surfaces with low angle values was considered. An experimental plan was designed and materialized to highlight the influence of different factors, such as the thickness of the deposited material layer, the printing speed, the cooling and filling conditions of the 3D-printed part, and the thickness of the sample. Samples using areas in the form of isosceles triangles with constant height or bases with the same length, respectively, were used. The mathematical processing of the experimental results allowed the determination of empirical mathematical models of the power-function type. It allowed the detection of both the direction of actions and the intensity of the influence exerted by the input factors. It is concluded that the strongest influence on the printer’s ability to produce fine detail, from the point of view addressed in the paper, is exerted by the vertex angle, whose reduction leads to a decrease in printing accuracy.

scholarly journals Biocompatibility of Blank, Post-Processed and Coated 3D Printed Resin Structures with Electrogenic Cells

Biosensors ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. 152
Author(s):  
Cacie Hart ◽  
Charles M. Didier ◽  
Frank Sommerhage ◽  
Swaminathan Rajaraman
Keyword(s):  
Cell Culture ◽  
3D Printing ◽  
Culture Vessel ◽  
Standard Cell ◽  
Post Processing ◽  
3D Printed ◽  
Processing Techniques

The widespread adaptation of 3D printing in the microfluidic, bioelectronic, and Bio-MEMS communities has been stifled by the lack of investigation into the biocompatibility of commercially available printer resins. By introducing an in-depth post-printing treatment of these resins, their biocompatibility can be dramatically improved up to that of a standard cell culture vessel (99.99%). Additionally, encapsulating resins that are less biocompatible with materials that are common constituents in biosensors further enhances the biocompatibility of the material. This investigation provides a clear pathway toward developing fully functional and biocompatible 3D printed biosensor devices, especially for interfacing with electrogenic cells, utilizing benchtop-based microfabrication, and post-processing techniques.

scholarly journals 3D printing – a key technology for tailored biomedical cell culture lab ware

2016 ◽  
Vol 2 (1) ◽  
pp. 105-108 ◽  
Author(s):  
Florian Schmieder ◽  
Joachim Ströbel ◽  
Mechthild Rösler ◽  
Stefan Grünzner ◽  
Bernd Hohenstein ◽  
...  
Keyword(s):  
Cell Culture ◽  
3D Printing ◽  
Ex Vivo ◽  
Vascular Perfusion ◽  
Laboratory Equipment ◽  
Key Technology ◽  
Cell Culture Systems ◽  
First Results ◽  
3D Printed

AbstractToday’s 3D printing technologies offer great possibilities for biomedical researchers to create their own specific laboratory equipment. With respect to the generation of ex vivo vascular perfusion systems this will enable new types of products that will embed complex 3D structures possibly coupled with cell loaded scaffolds closely reflecting the in-vivo environment. Moreover this could lead to microfluidic devices that should be available in small numbers of pieces at moderate prices. Here, we will present first results of such 3D printed cell culture systems made from plastics and show their use for scaffold based applications.

scholarly journals Consumer vs. High-End 3D Printers for Guided Implant Surgery—An In Vitro Accuracy Assessment Study of Different 3D Printing Technologies

2021 ◽  
Vol 10 (21) ◽  
pp. 4894
Author(s):  
Lukas Wegmüller ◽  
Florian Halbeisen ◽  
Neha Sharma ◽  
Sebastian Kühl ◽  
Florian M. Thieringer
Keyword(s):  
3D Printing ◽  
Accuracy Assessment ◽  
Subjective Assessment ◽  
Fused Filament Fabrication ◽  
Digital Light Processing ◽  
Implant Surgery ◽  
Surgical Guides ◽  
3D Printers ◽  
3D Printed

This study evaluates the accuracy of drill guides fabricated in medical-grade, biocompatible materials for static, computer-aided implant surgery (sCAIS). The virtually planned drill guides of ten completed patient cases were printed (n = 40) using professional (Material Jetting (MJ)) and consumer-level three-dimensional (3D) printing technologies, namely, Stereolithography (SLA), Fused Filament Fabrication (FFF), and Digital Light Processing (DLP). After printing and post-processing, the drill guides were digitized using an optical scanner. Subsequently, the drill guide’s original (reference) data and the surface scans of the digitized 3D-printed drill guide were superimposed to evaluate their incongruencies. The accuracy of the 3D-printed drill guides was calculated by determining the root mean square (RMS) values. Additionally, cast models of the planned cases were used to check that the drill guides fitted manually. The RMS (mean ± SD) values for the accuracy of 3D-printed drill guides were—MJ (0.09 ± 0.01 mm), SLA (0.12 ± 0.02 mm), FFF (0.18 ± 0.04 mm), and DLP (0.25 ± 0.05 mm). Upon a subjective assessment, all drill guides could be mounted on the cast models without hindrance. The results revealed statistically significant differences (p < 0.01) in all except the MJ- and SLA-printed drill guides. Although the measured differences in accuracy were statistically significant, the deviations were negligible from a clinical point of view. Within the limits of this study, we conclude that consumer-level 3D printers can produce surgical guides with a similar accuracy to a high-end, professional 3D printer with reduced costs.

scholarly journals Dimensional Stability of 3D Printed Objects Made from Plastic Waste Using FDM: Potential Construction Applications

Buildings ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 516
Author(s):  
Essam Zaneldin ◽  
Waleed Ahmed ◽  
Aya Mansour ◽  
Amged El Hassan
Keyword(s):  
3D Printing ◽  
Construction Projects ◽  
Fused Deposition Modeling ◽  
Three Dimensional ◽  
Cost Effective ◽  
Plastic Waste ◽  
Fused Deposition ◽  
Feasible Option ◽  
3D Printers ◽  
3D Printed

Construction projects are often challenged by tight budgets and limited time and resources. Contractors are, therefore, looking for ways to become competitive by improving efficiency and using cost-effective materials. Using three-dimensional (3D) printing for shaping materials to produce cost-effective construction elements is becoming a feasible option to make contractors more competitive locally and globally. The process capabilities for 3D printers and related devices have been tightened in recent years with the booming of 3D printing industries and applications. Contractors are attempting to improve production skills to satisfy firm specifications and standards, while attempting to have costs within competitive ranges. The aim of this research is to investigate and test the production process capability (Cp) of 3D printers using fused deposition modeling (FDM) to manufacture 3D printed parts made from plastic waste for use in the construction of buildings with different infill structures and internal designs to reduce cost. This was accomplished by calculating the actual requirement capabilities of the 3D printers under consideration. The production capabilities and requirements of FDM printers are first examined to develop instructions and assumptions to assist in deciphering the characteristics of the 3D printers that will be used. Possible applications in construction are then presented. As an essential outcome of this study, it was noticed that the 3D printed parts made from plastic waste using FDM printers are less expensive than using traditional lightweight non-load bearing concrete hollow masonry blocks, hourdi slab hollow bocks, and concrete face bricks.

scholarly journals Design of 3D Printing Thermo-Sensored Medical Gear in Detecting COVID-19 Symptoms

2021 ◽  
Vol 11 (1) ◽  
pp. 419
Author(s):  
Milena Djukanović ◽  
Ardijan Mavrić ◽  
Jovana Jovanović ◽  
Milovan Roganović ◽  
Velibor Bošković
Keyword(s):  
3D Printing ◽  
Medical Staff ◽  
Medical Equipment ◽  
Protective Equipment ◽  
Body Temperatures ◽  
Medical Facilities ◽  
The World ◽  
3D Printers ◽  
3D Printed ◽  
Second Wave

Shortly after the outbreak of the COVID-19 pandemic, there was a need to provide protective equipment to the medical facilities whose supplies were threatened to be depleted. Just like many countries in Europe, Montenegro responded to the need for medical equipment by using the advantages of 3D printers while establishing a state network of production hubs, ensuring closed connectivity, communication, and the mutual fulfilment of personal protective equipment (PPE) demands whenever and wherever required. With the second wave of the pandemic, Montenegro rose to second place in the world with the number of coronavirus cases, which also led to an increasing number of infected medical staff. Since fever is a frequent symptom of SA+RS-CoV2 infection, a type of innovative 3D-printed thermo-sensored medical gear has been designed and tested in hospital conditions. This medical gear shaped like a bracelet, which changes color in the presence of high human body temperatures, proves to be efficient and easy to use for medical staff as well as patients.

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