scholarly journals REVIEW OF CURRENT RESEARCH ON CHITOSAN AS A RAW MATERIAL IN THREE-DIMENSIONAL PRINTING TECHNOLOGY IN BIOMEDICAL APPLICATIONS

2020 ◽  
Vol XXV ◽  
pp. 37-50
Author(s):  
Szymon Mania ◽  
Adrianna Banach ◽  
Robert Tylingo
Keyword(s):  
Selective Laser Sintering ◽  
Three Dimensional ◽  
Raw Material ◽  
Fused Deposition Modelling ◽  
Digital Light Processing ◽  
Three Dimensional Printing ◽  
Fused Deposition ◽  
Potential Applications ◽  
3D Printers ◽  
Dimensional Printing

Three-dimensional (3D) biomaterial manufacturing strategies show an extraordinary driving force for the development of innovative solutions in the biomedical sector, including drug delivery systems, disease modelling and tissue and organ engineering. Due to its remarkable and promising biological and structural properties, chitosan has been widely studied for decades in several potential applications in the biomedical field. However, tools in the form of 3D printers have created new possibilities for the production of chitosan models, implants and scaffolds for cell cultures that are much more precise than existing ones. The article presents current achievements related to the possibility of using chitosan to create new materials for 3D printing in the form of chitosan bioinks, filaments, resins and powders dedicated for bioprinting, fused deposition modelling, stereolithography/digital light processing and selective laser sintering methods, respectively

scholarly journals Rapid Prototyping: Technologies, Materials and Advances

2016 ◽  
Vol 61 (2) ◽  
pp. 891-896 ◽  
Author(s):  
P. Dudek ◽  
A. Rapacz-Kmita
Keyword(s):  
Rapid Prototyping ◽  
Selective Laser Sintering ◽  
Three Dimensional ◽  
Digital Data ◽  
Fused Deposition Modelling ◽  
Three Dimensional Printing ◽  
Fused Deposition ◽  
Composite Fabrication ◽  
Materials Used ◽  
Dimensional Printing

AbstractIn the context of product development, the term rapid prototyping (RP) is widely used to describe technologies which create physical prototypes directly from digital data. Recently, this technology has become one of the fastest-growing methods of manufacturing parts. The paper provides brief notes on the creation of composites using RP methods, such as stereolithography, selective laser sintering or melting, laminated object modelling, fused deposition modelling or three-dimensional printing. The emphasis of this work is on the methodology of composite fabrication and the variety of materials used in these technologies.

scholarly journals Influence of the Infill Geometry of 3D-Printed Tablets on Drug Dissolution

2021 ◽  
Vol 5 (1) ◽  
pp. 15
Author(s):  
Nuno Venâncio ◽  
Gabriela G. Pereira ◽  
João F. Pinto ◽  
Ana I. Fernandes
Keyword(s):  
Three Dimensional ◽  
Drug Dissolution ◽  
Fused Deposition Modelling ◽  
Three Dimensional Printing ◽  
Preliminary Results ◽  
Fused Deposition ◽  
3D Printed ◽  
Dimensional Printing ◽  
Hot Melt ◽  
Patient Centric

Patient-centric therapy is especially important in pediatrics and may be attained by three-dimensional printing. Filaments containing 30% w/w of theophylline were produced by hot-melt extrusion and printed using fused deposition modelling to produce tablets. Here, preliminary results evaluating the effect of infill geometry (cross, star, grid) on drug content and release are reported.

scholarly journals SISTEM KONTROL MESIN FUSED DEPOSITION MODELLING

POROS ◽  
2017 ◽  
Vol 14 (2) ◽  
pp. 107
Author(s):  
Cristian Awi ◽  
Gatot Soeharsono ◽  
Didi Widya Utama
Keyword(s):  
Control System ◽  
Fused Deposition Modeling ◽  
Three Dimensional ◽  
Fused Deposition Modelling ◽  
Three Dimensional Printing ◽  
Engine Control System ◽  
Fused Deposition ◽  
Modeling Process ◽  
Deposition Modeling ◽  
Dimensional Printing

Abstract: Fused deposition modeling is a rapid prototyping process that is very popular. Fused deposition modeling is actually one method of Three -dimensional printing. Fused deposition modeling process , namely by heating the thermoplastic material and then do the printing . Our focus is to learn, the engine control system fused deposition modeling with software arduino 1.6.8 with firmware marlin and other software 3d printer. experimental control system is done by testing the direction of motion and measuring the distance and then test the form . Making fused deposition modeling is intended as a prototype in order to understand the control system and how to innovate in the development of fused deposition modeling. The results of the control system in the form of a fused depositon modeling engine capable of running as expected and can create a physical model. 

scholarly journals Testing thermoplastic elastomers selected as flexible three-dimensional printing materials for functional garment and technical textile applications

2020 ◽  
Vol 15 ◽  
pp. 155892502092459 ◽  
Author(s):  
Michael Korger ◽  
Alexandra Glogowsky ◽  
Silke Sanduloff ◽  
Christine Steinem ◽  
Sofie Huysman ◽  
...  
Keyword(s):  
Thermoplastic Polyurethane ◽  
Three Dimensional ◽  
Thermoplastic Elastomers ◽  
Polymer Processing ◽  
Fused Deposition Modelling ◽  
Shore Hardness ◽  
Three Dimensional Printing ◽  
Thermoplastic Polyurethanes ◽  
Fused Deposition ◽  
Dimensional Printing

Three-dimensional printing has already been shown to be beneficial to the fabrication of custom-fit and functional products in different industry sectors such as orthopaedics, implantology and dental technology. Especially in personal protective equipment and sportswear, three-dimensional printing offers opportunities to produce functional garments fitted to body contours by directly printing protective and (posture) supporting elements on textiles. In this article, different flexible thermoplastic elastomers, namely, thermoplastic polyurethanes and thermoplastic styrene block copolymers with a Shore hardness range of 67A–86A are tested as suitable printing materials by means of extrusion-based fused deposition modelling. For this, adhesion force, abrasion and wash resistance tests are conducted using various knitted and woven workwear and sportswear fabrics primarily made of cotton, polyester or aramid as textile substrates. Due to polar interactions between thermoplastic polyurethane and textile substrates, excellent adhesion and high fastness to washing is observed. While fused-deposition-modelling-printed polyether-based thermoplastic polyurethane polymers keep their abrasion–resistant properties, polyester-based thermoplastic polyurethanes are more prone to hydrolysis and can be partially degraded if presence of moisture cannot be excluded during polymer processing and printing. Thermoplastic styrene compounds generally exhibit lower adhesion and abrasion resistance, but these properties can be sufficient depending on the requirements of a particular application. Soft thermoplastic styrene filaments can be processed down to a Shore hardness of 70A resulting in three-dimensional printed parts with good quality and comfortable soft-touch surface. Finally, three demonstrator case studies are presented covering the entire process to realize the customized and three-dimensional printed textile. This encompasses product development and fabrication of a textile integrated custom-fit back protector and knee protector as well as customized functionalization of a technical interior textile for improved acoustic comfort. In the future, printing material modifications by compounding processes have to be taken into account for optimized functional performance.

scholarly journals 3D Printing of Thermo-Sensitive Drugs

Pharmaceutics ◽  
2021 ◽  
Vol 13 (9) ◽  
pp. 1524
Author(s):  
Sadikalmahdi Abdella ◽  
Souha H. Youssef ◽  
Franklin Afinjuomo ◽  
Yunmei Song ◽  
Paris Fouladian ◽  
...  
Keyword(s):  
3D Printing ◽  
Three Dimensional ◽  
Fused Deposition Modelling ◽  
Future Directions ◽  
Digital Light Processing ◽  
Fused Deposition ◽  
Printing Technique ◽  
3D Printed ◽  
Semi Solid ◽  
Selection Of

Three-dimensional (3D) printing is among the rapidly evolving technologies with applications in many sectors. The pharmaceutical industry is no exception, and the approval of the first 3D-printed tablet (Spiratam®) marked a revolution in the field. Several studies reported the fabrication of different dosage forms using a range of 3D printing techniques. Thermosensitive drugs compose a considerable segment of available medications in the market requiring strict temperature control during processing to ensure their efficacy and safety. Heating involved in some of the 3D printing technologies raises concerns regarding the feasibility of the techniques for printing thermolabile drugs. Studies reported that semi-solid extrusion (SSE) is the commonly used printing technique to fabricate thermosensitive drugs. Digital light processing (DLP), binder jetting (BJ), and stereolithography (SLA) can also be used for the fabrication of thermosensitive drugs as they do not involve heating elements. Nonetheless, degradation of some drugs by light source used in the techniques was reported. Interestingly, fused deposition modelling (FDM) coupled with filling techniques offered protection against thermal degradation. Concepts such as selection of low melting point polymers, adjustment of printing parameters, and coupling of more than one printing technique were exploited in printing thermosensitive drugs. This systematic review presents challenges, 3DP procedures, and future directions of 3D printing of thermo-sensitive formulations.

scholarly journals 3D-Printed Soft Structure of Polyurethane and Magnetorheological Fluid: A Proof-of-Concept Investigation of its Stiffness Tunability

Micromachines ◽  
2019 ◽  
Vol 10 (10) ◽  
pp. 655 ◽  
Author(s):  
Seong-Woo Hong ◽  
Ji-Young Yoon ◽  
Seong-Hwan Kim ◽  
Sun-Kon Lee ◽  
Yong-Rae Kim ◽  
...  
Keyword(s):  
Fused Deposition Modeling ◽  
Permanent Magnets ◽  
Thermoplastic Polyurethane ◽  
Three Dimensional ◽  
Magnetorheological Fluid ◽  
Three Dimensional Printing ◽  
Fused Deposition ◽  
Deposition Modeling ◽  
3D Printed ◽  
Dimensional Printing

In this study, a soft structure with its stiffness tunable by an external field is proposed. The proposed soft beam structure consists of a skin structure with channels filled with a magnetorheological fluid (MRF). Two specimens of the soft structure are fabricated by three-dimensional printing and fused deposition modeling. In the fabrication, a nozzle is used to obtain channels in the skin of the thermoplastic polyurethane, while another nozzle is used to fill MRF in the channels. The specimens are tested by using a universal tensile machine to evaluate the relationships between the load and deflection under two different conditions, without and with permanent magnets. It is empirically shown that the stiffness of the proposed soft structure can be altered by activating the magnetic field.

Denture flask fabrication using fused deposition modeling three-dimensional printing

2020 ◽  
Vol 64 (2) ◽  
pp. 231-234 ◽  
Author(s):  
Heechul Kim ◽  
Doyun Lee ◽  
Soo Young Lee ◽  
Hongso Yang ◽  
Sang-Won Park ◽  
...  
Keyword(s):  
Fused Deposition Modeling ◽  
Three Dimensional ◽  
Three Dimensional Printing ◽  
Fused Deposition ◽  
Deposition Modeling ◽  
Dimensional Printing
Sign in / Sign up

Export Citation Format

Share Document