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3D Printing - Europe PMC

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Last Updated: 10 June 2022

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Analysis on the printability and rheological characteristics of bigel inks: Potential in 3D food printing

"Bigels have special features that make them suitable for 3D printing jobs. " The beeswax oleogel oleogel's were investigated in this research, as the 3D printability, thermodynamics, and microstructure of bigel inks containing 20%, 30%, 50%, 70%, and 80% fractions were investigated. The value of K increased with extrudedability in 3D printing, but n decreased as the oleogel fraction increased, indicating that the viscosity and shearing thinning properties increased. In addition, confocal laser scanning microscopy demonstrated in BG1 to BG4, oleogel and hydrogel particles aggregating to various degrees after extrusion, but BG5 remained unchanged. As the oleogel fraction increased, the recovery time reduced in bigel inks, and the BG5 could recover within 2 s after extruding, according to the study's results. These bigel inks recommend a process for producing high-oil materials that can be used in 3D food printing.

Source link: https://europepmc.org/article/MED/IND607716119


3D food printing curing technology based on gellan gum

"To improve the molding consistency, a 3D food printing curing system based on gellan gum's temperature-sensitive phase change characteristics was developed. " Corn starch was used as the printing substrate to produce a gel that solidifies during printing. The pre-gelatinized starch slurry with gellan gum was stored in a barrel with a heating function and extruded onto the printing press at room temperature. Gellan gum, according to thermometer and curing speed of the slurry, influenced the curing results by influencing the curing temperature and curing speed. ".

Source link: https://europepmc.org/article/MED/IND607707692


3D printing of cell-laden visible light curable glycol chitosan bioink for bone tissue engineering

As shown by printability, protein adsorption, cell proliferation, and osteogenic capability, MeGC's 3D printing of MeGC was completed at 3% using 12 bcM of riboflavin as a photoinitiator under an irradiation pressure of 120 kPa. The results indicate that MeGC-70 bioinks and 3D printed scaffolds can be used as patient-specific scaffolds for bone regeneration purposes.

Source link: https://europepmc.org/article/MED/IND607700484


3D printing for surgical planning of canine oral and maxillofacial surgeries.

"Background Detailed diagnostic imaging is an integral part of preoperative preparation for oral and maxillofacial surgery in veterinary patients. " Our case study includes three 3D printed models ranging from computed tomography and cone beam CT to protodibular reconstruction after mandibulectomy, and gap arthroplasty for temporomandibular joint ankylosis in dogs. Conclusions We provide several benefits and indications for 3D printing in veterinary oral and maxillofacial surgery. It enhances individual surgical planning by enabling surgeons to tailor and extend the surgical plan by investigating patient-specific anatomy and pathology. In addition, 3D printed models have the ability to enhance veterinary student and undergraduate education, as well as pet owner awareness and communication regarding their pets' health, treatment strategy, and intended outcomes. ".

Source link: https://europepmc.org/article/MED/35678954


3D printing of MXene composite hydrogel scaffolds for photothermal antibacterial activity and bone regeneration in infected bone defect models.

"Infected bone abnormalities, intractable bacterial infection, and inadequate osseointegration are all common problems. Because of the excellent photothermal properties of MXene, both Gram-positive and Gram-negative bacteria could be killed by NIR irradiation by NIR irradiation. In addition, rat bone marrow mesenchymal stem cells were mixed into GTAM bioinks for 3D bioprinting. According to MXene, crosslinked Sr 2+, and u03b2-TCP, cell-laden 3D printed GTAM scaffolds demonstrated biocompatibility and bone formation capability, as well as u03b2-TCP and u03b2-TCP. In vivo, we introduced 3D printed GTAM scaffolds in S. austria, including NIR irradiation in rats with In vivo.

Source link: https://europepmc.org/article/MED/35612416


Defects in 3D/4D food printing and their possible solutions: A comprehensive review.

"4D printing, which is a method that allows the evolution of various characteristics/properties of 3D printed objects over time through external stimulation, is also drawing more attention. The aim of this study is to investigate the causes and causes of defects that occur during and/or after 3D food printing, with a focus on how various factors influence printing accuracy. Various techniques that may reduce or eliminate printing errors and produce high-quality 3D/4D printed food products without the need for time-consuming trial and error printing experiments are briefly discussed.

Source link: https://europepmc.org/article/MED/35678036


In situ 3D printing of liquid metal-hydrogel hybrid for multifunctional soft bioelectronics and devices

After one-step cross-link, single or multilayer LM patterns are 3D-printed and encapsulated in ionic hydrogel, which is a simple in-situ 3D printing process is used to produce liquid metal -hydrogel hybrid structures. " A universal but multifunctional platform for the wide variety of hydrogel bioelectronics and devices that can be manufactured by the simple and fast in-situ 3D printing process.

Source link: https://europepmc.org/article/PPR/PPR503580


The Effects of Solid Particle Containing Inks on the Printing Quality of Porous Pharmaceutical Structures Fabricated by 3D Semi-Solid Extrusion Printing.

"Purpose Semi-solid extrusion 3D printing has potential pharmaceutical uses for producing personalized medicine," P. "Purpose Semi-solid extrusion 3D printing has the ability to produce personalised medicine. " This research sought to determine the effects of solid drug particles in SSE inks on porous structures' printing quality. PCM loading above the maximum solubility limit in which suspended solid drug particulates were present, was found to have a significant effect on the ink viscosities at a low shear rate, with PCM loading and particle size greatly impacting the ink viscosities. However, the findings showed that the SSE printing parameters and printing quality of porous structures had no apparent correlation with the shear viscosity measurements, but that they did have a strong correlation with the inks' dynamic oscillatory rheology. Conclusion With increasing drug loading for the inks containing solid drug particles, the key rheological parameters, including storage modulus, loss modulus, and complicated viscosity of the ink, have increased.

Source link: https://europepmc.org/article/MED/35661083


Mitral paravalvular leak 3D printing from 3D-transesophageal echocardiography – proof of concept and preparation flowchart

"In almost half of patients after mitral valve prosthesis implantation, paravalvular leaks can be detected. " Despite advancements in non-invasive imaging, percutaneous closure of PVLs is not always fruitful. The analysis of 8 patients with clinically significant mitral PVLs was performed retrospectively. To export DICOM images of every PVL channel, as well as surrounding tissue, Qlab Software was used to export DICOM images of each PVL channel, as well as surrounding tissue. Models were printed to exact size with the polyjet Stratasys Objet 30 printer that uses a clear, rigid paper. 3D-TEE 3D-printing is economically viable, according to a 3D-TEE 3D-printing. It's also unknown if 3D-printing would improve outcomes of percutaneous PVL closure. ".

Source link: https://europepmc.org/article/PPR/PPR501941


Application of 3D printing in assessment and demonstration of stab injuries.

"The forensic pathologist must determine the direction of the wound track and the weapon's potential characteristics by examining the stab wound. " Scanning and 3D printing knives is a fast way to identify weapons and determine the precise stabbing location in a stabbing attack without losing the trace evidence or the autopsy findings. Inserting the printed knife into the wound provides a clear indication of the stabbing course, thus easing the forensic investigation of the stabbing incident. After combining 3D printing with photogrammetry, the final 3D rendering is useful for courtroom demonstration and educational use. ".

Source link: https://europepmc.org/article/MED/35657431

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions