Porous bioceramics produced by inkjet 3D printing: Effect of printing ink formulation on the ceramic macro and micro porous architectures control

2018 ◽  
Vol 155 ◽  
pp. 112-121 ◽  
Author(s):  
Boqing Zhang ◽  
Xuan Pei ◽  
Ping Song ◽  
Huan Sun ◽  
Huiyong Li ◽  
...  
Keyword(s):  
3D Printing ◽  
Printing Ink ◽  
Porous Bioceramics ◽  
Ink Formulation

3 D printing technology and experimental study of chitosan gel using atomized solidification liquid-assisted extrusion molding

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Yangwei Wang ◽  
Peilun Lv ◽  
Jian Li ◽  
Liying Yu ◽  
Guodong Yuan ◽  
...  
Keyword(s):  
3D Printing ◽  
Three Dimensional ◽  
Theoretical Research ◽  
Error Sources ◽  
Printing Technology ◽  
Content Type ◽  
Printing Ink ◽  
Printing Parameters ◽  
Chitosan Gel ◽  
Printing Method

Purpose This paper aims to propose a suitable atomizing solidification chitosan (CS) gel liquid extrusion molding technology for the three dimensional (3D) printing method, and experiments verify the feasibility of this method. Design/methodology/approach This paper mainly uses experimental means, combined with theoretical research. The preparation method, solidification forming method and 3D printing method of CS gel solution were studied. The CS gel printing mechanism and printing error sources are analyzed on the basis of the CS gel ink printing results, printing performance with different ratios of components by constructing a gel print prototype, experiments evaluating the CS gel printing technology and the effects of the process parameters on the scaffold formation. Findings CS printing ink was prepared; the optimal formula was found; the 3 D printing experiment of CS was completed; the optimal printing parameters were obtained; and the reliability of the forming prototype, printing ink and gel printing process was verified, which allowed for the possibility to apply the 3 D printing technology to the manufacturing of a CS gel structure. Originality/value This study can provide theoretical and technical support for the potential application of CS 3 D printed gels in tissue engineering.

Materials for 3D Concrete Printing: Approach to Standardization in Russia

2021 ◽  
Vol 1043 ◽  
pp. 141-148
Author(s):  
Aleksey Adamtsevich ◽  
Andrey Pustovgar ◽  
Liubov Adamtsevich
Keyword(s):  
3D Printing ◽  
Test Methods ◽  
Standard Test ◽  
Material Consumption ◽  
Technical Base ◽  
Printing Ink ◽  
Ready Mixed Concrete ◽  
Mixed Concrete

3D Concrete Printing (3DCP) technology, compared to traditional monolithic construction, gives a possibility to increase the workspeed and reduce the manual laborproportion, reduce material consumption and also improve the architectural appearance of buildings being erected. At the same time, more stringent requirements are imposed on the material for 3D printing in terms of rheological characteristicscontrol, strength developmentkinetics, interplay adhesion and some other parameters than for conventional ready-mixed concrete. Therefore, to ensure the mass application of technologies for additive construction production using concrete as printing ink, it is necessary to develop a regulatory and technical base, including the development of standard test methods to determine the operational properties of this typeofmaterials. The article examines the main trends in the management of the materials’properties for construction 3D printing based on cement binders and describes the principles of building a system for standardizing materials for 3D printing construction in Russia, which was developed with the participation of the authors of this article.

Testing Procedures on Materials to Formulate the Ink for 3D Printing

2020 ◽  
Vol 2674 (2) ◽  
pp. 21-32 ◽  
Author(s):  
Malo Charrier ◽  
Claudiane Ouellet-Plamondon
Keyword(s):  
3D Printing ◽  
Yield Stress ◽  
Three Dimensional ◽  
Testing Procedure ◽  
Full Potential ◽  
Cement Pastes ◽  
Slump Test ◽  
Testing Procedures ◽  
Transportation Sector ◽  
Printing Ink

Three-dimensional (3D) printing has been used in various fields to tackle applications difficult for conventional manufacturing. To realize the full potential of this technology in the transportation sector, it is imperative to identify suitable tests and mixtures for printing “inks” made of mortar. In this study, several conventional and non-conventional tests on mortars and cement pastes were conducted. This work highlights the correlation between the results of slump test and the deformation test that indicates the comportment of the mixture under a stack of printed layers. Moreover, a strong connection between yield stress and mini-slump is observed, demonstrating a simplification of the testing procedure, and a link between the mortar and the cement paste is developed. In the printing ink design phase, this association enables the prediction of flowability. The yield stress and the final radius of the mini-slump tests were very well correlated for the admixture tested. The use of the mini-slump test simplifies the testing procedure and allows for quicker formulations of admixtures in the printing ink.

Vegetable-oil-based printing ink formulation and degradation

1995 ◽  
Vol 3 (4) ◽  
pp. 237-246 ◽  
Author(s):  
Sevim Z. Erhan ◽  
Marvin O. Bagby
Keyword(s):  
Vegetable Oil ◽  
Printing Ink ◽  
Ink Formulation

scholarly journals Recent Cell Printing Systems for Tissue Engineering

2017 ◽  
Vol 3 (1) ◽  
Author(s):  
Hyeongjin Lee ◽  
YoungWon Koo ◽  
Miji Yeo ◽  
SuHon Kim ◽  
Geun Hyung Kim
Keyword(s):  
Tissue Engineering ◽  
Growth Factors ◽  
3D Printing ◽  
Cell Damage ◽  
Three Dimensional ◽  
Human Tissues ◽  
Printing Process ◽  
Cell Printing ◽  
3D Space ◽  
Printing Ink

 Three-dimensional (3D) printing in tissue engineering has been studied for the bio mimicry of the structures of human tissues and organs. Now it is being applied to 3D cell printing, which can position cells and biomaterials, such as growth factors, at desired positions in the 3D space. However, there are some challenges of 3D cell printing, such as cell damage during the printing process and the inability to produce a porous 3D shape owing to the embedding of cells in the hydrogel-based printing ink, which should be biocompatible, biodegradable, and non-toxic, etc. Therefore, researchers have been studying ways to balance or enhance the post-print cell viability and the print-ability of 3D cell printing technologies by accommodating several mechanical, electrical, and chemical based systems. In this mini-review, several common 3D cell printing methods and their modified applications are introduced for overcoming deficiencies of the cell printing process.

scholarly journals 3D Printing of Bioceramic Scaffolds—Barriers to the Clinical Translation: From Promise to Reality, and Future Perspectives

Materials ◽  
2019 ◽  
Vol 12 (17) ◽  
pp. 2660 ◽  
Author(s):  
Kang Lin ◽  
Rakib Sheikh ◽  
Sara Romanazzo ◽  
Iman Roohani
Keyword(s):  
3D Printing ◽  
Polymer Matrix Composites ◽  
Three Dimensional ◽  
Processing Parameters ◽  
Matrix Composites ◽  
Large Area ◽  
Digital Light Processing ◽  
Increasing Demand ◽  
New Research ◽  
Porous Bioceramics

In this review, we summarize the challenges of the three-dimensional (3D) printing of porous bioceramics and their translational hurdles to clinical applications. The state-of-the-art of the major 3D printing techniques (powder-based and slurry-based), their limitations and key processing parameters are discussed in detail. The significant roadblocks that prevent implementation of 3D printed bioceramics in tissue engineering strategies, and medical applications are outlined, and the future directions where new research may overcome the limitations are proposed. In recent years, there has been an increasing demand for a nanoscale control in 3D fabrication of bioceramic scaffolds via emerging techniques such as digital light processing, two-photon polymerization, or large area maskless photopolymerization. However, these techniques are still in a developmental stage and not capable of fabrication of large-sized bioceramic scaffolds; thus, there is a lack of sufficient data to evaluate their contribution. This review will also not cover polymer matrix composites reinforced with particulate bioceramics, hydrogels reinforced with particulate bioceramics, polymers coated with bioceramics and non-porous bioceramics.

scholarly journals A Reactive Prodrug Ink Formulation Strategy for Inkjet 3D Printing of Controlled Release Dosage Forms and Implants

2020 ◽  
Vol 3 (6) ◽  
pp. 1900187
Author(s):  
Yinfeng He ◽  
Ruggero Foralosso ◽  
Gustavo F. Trindade ◽  
Alexander Ilchev ◽  
Laura Ruiz‐Cantu ◽  
...  
Keyword(s):  
Controlled Release ◽  
3D Printing ◽  
Dosage Forms ◽  
Ink Formulation
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