Materials Today Communications, Год журнала: 2024, Номер 41, С. 111099 - 111099
Опубликована: Ноя. 26, 2024
Язык: Английский
ACS Biomaterials Science & Engineering, Год журнала: 2025, Номер 11(1), С. 156 - 181
Опубликована: Янв. 2, 2025
Volumetric additive manufacturing (VAM) is revolutionizing the field of cell printing by enabling rapid creation complex three-dimensional cellular structures that mimic natural tissues. This paper explores advantages and limitations various VAM techniques, such as holographic lithography, digital light processing, volumetric projection, while addressing their suitability across diverse industrial applications. Despite significant potential VAM, challenges related to regulatory compliance scalability persist, particularly in context bioprinted In India, lack clear guidelines intellectual property protections poses additional hurdles for companies seeking navigate evolving landscape bioprinting. study emphasizes importance collaboration among industry stakeholders, agencies, academic institutions establish tailored frameworks promote innovation ensuring safety efficacy. By bridging gap between technological advancement oversight, can unlock new opportunities regenerative medicine tissue engineering, transforming patient care therapeutic outcomes.
Язык: Английский
Процитировано
2
Polymers, Год журнала: 2024, Номер 16(18), С. 2561 - 2561
Опубликована: Сен. 10, 2024
Tremendously negative effects have been generated in recent decades by the continuously increasing production of conventional plastics and inadequate management their waste products. This demands materials within a circular economy, easy to recycle biodegrade, minimizing environmental impact cost competitiveness. Bioplastics represent sustainable alternative this scenario. However, replacement must be addressed considering several aspects along lifecycle, from bioplastic processing final application product. In review, using different additives, biomass sources, techniques on mechanical thermal behavior, as well biodegradability, bioplastics is discussed. The importance bioplasticizers highlighted, besides studying role surfactants, compatibilizers, cross-linkers, coupling agents, chain extenders. Cellulose, lignin, starch, chitosan, composites are analyzed part non-synthetic considered. Throughout study, emphasis use well-established manufacturing processes, such extrusion, injection, compression, or blow molding, since these ones that satisfy quality, productivity, requirements for large-scale industrial production. Particular attention also given fused deposition modeling, additive technique nowadays not only used making prototypes, but it being integrated into development parts wide variety biomedical applications. Finally, recyclability commercial discussed, some future perspectives challenges bio-based with conclusion technological innovations, economic incentives, policy changes could coupled individually driven solutions mitigate impacts associated plastics.
Язык: Английский
Процитировано
6
Advanced Materials, Год журнала: 2025, Номер unknown
Опубликована: Март 2, 2025
Abstract Additive manufacturing (AM) has risen in popularity due to its ability produce complex shapes a material‐efficient way. However, objects with advanced properties, multimaterial strategies are often employed. This one‐polymer‐one‐property paradigm significantly slows down the application of AM, and particular fused deposition modeling (FDM), for functional objects. In this study advantage pluripotency materials is taken, i.e., attain different properties from single stock, afford mechanically tunable 3D printed dynamic thermosets (moduli 2 MPa – 3 GPa, 1500× increase, Stress at break 70 MPa, 35× increase). To do so, FDM‐compatible CO ‐derived dissociative polymer networks designed that undergo reaction‐induced phase‐separation (DRIPS). strategy enables control size rigid phase simple post‐printing thermal treatment, cascading spatially patterned mechanical properties. showcases new directions printing communities, deep implications soft robotics compliant mechanics.
Язык: Английский
Процитировано
0
Applied Sciences, Год журнала: 2025, Номер 15(8), С. 4216 - 4216
Опубликована: Апрель 11, 2025
In recent years, additive manufacturing technologies have been employed for ecological projects, especially those connected with artificial reefs. This approach brings a lot of advantages, including the design more complex structures, surfaces fitted to needs water organisms. technology can effectively support and engineering, in restoration efforts. The main aim this article is demonstrate state art further perspectives development coral based on critical analysis literature, supported by selected case studies. describes current used creation reefs, putting emphasis manufacturing, evaluates currently materials, summarizes influence ecosystems through It also discusses challenges limitations 3D printing reefs as well presents trends directions. most important findings show that analyzed field promising interdisciplinary research area practical implementations require collaboration between specialists from different branches.
Язык: Английский
Процитировано
0
Journal of Prosthetic Dentistry, Год журнала: 2024, Номер unknown
Опубликована: Сен. 1, 2024
Язык: Английский
Процитировано
3
Ecotoxicology and Environmental Safety, Год журнала: 2025, Номер 293, С. 118007 - 118007
Опубликована: Март 1, 2025
The increasing use of plastic polymers in 3D printing applications may lead to human exposure micro- and nanoplastics (MNPLs), raising concerns regarding adverse health consequences such as cancer induction. Little attention has been given MNPLs originated at the end life cycle 3D-printed objects because mechanical environmental degradation waste. This study assessed carcinogenic potential secondary generated through cryomilling using validated vitro Bhas 42 cell transformation assay (CTA). Three-dimensional were printed four types polycarbonate (PC)- polypropylene (PP)-modified thermoplastic filaments, undoped doped with single-walled carbon nanotubes (PC-CNT) silver nanoparticles (PP-Ag), respectively. (< 5 µm) following a three-step top-down process thoroughly characterized. cells treated once (initiation assay) or repeatedly (promotion several concentrations (3.125-100 µg/mL) mimicking realistic conditions, transformed foci formation was evaluated after 21 days. Furthermore, cellular internalization mRNA expression seven genes previously recognized part predictive early signature also evaluated. Despite being internalized, none particles able initiate promote transformation, regardless doping nanomaterials. Alternatively, all significantly increased decreased Prl2c3 Timp4, respectively, under promotion indicating changes that occur before foci. These findings suggest test could have tumorigenic despite not showing morphological cells.
Язык: Английский
Процитировано
0
Polymers, Год журнала: 2025, Номер 17(10), С. 1336 - 1336
Опубликована: Май 14, 2025
Despite manufacturing firms recognizing the potential benefits of polymer-based smart materials (PBSM) in additive (AM), their large-scale integration remains limited. As strive toward net-zero emissions (NZE) and sustainable manufacturing, integrating PBSM into AM could be pivotal for striving to achieve NZE more production. In this regard, study uses a mixed-method approach: systematic literature review (SLR) address current trends critical challenges associated with "development, processing, scalability" adoption AM. Further, analyzes 100 responses from Indian firms, employing exploratory factor analysis (EFA) develop framework. This framework is further validated by determining priority order using Combined Compromise Solution (CoCoSo) through case study. The outcome highlights that end-of-life management lack standardization are most restricting research provides valuable insights industry professionals academia, guiding strategic roadmap manufacturing. With transformation, industries can align global targets contribute India's economy goal 2070.
Язык: Английский
Процитировано
0
Materials, Год журнала: 2024, Номер 17(15), С. 3839 - 3839
Опубликована: Авг. 2, 2024
In this work, the authors investigated impact of extrusion-based printing process on structural characteristics bio-based resins through rheological measurements. Two commercially available filaments made from unfilled and wood-filled polylactide (PLA) polymers were considered. Three-dimensional specimens prepared by these under various operating conditions, i.e., changing extruder temperature rate, examined using time sweep tests. Specific cycle testing was conducted pelletized to simulate changes in process. The unprocessed materials, terms storage (G') loss (G″) moduli, found be slightly affected changes. For a pure polymer, G' slope at low frequency decreased over time, showing that polymer chains evolved higher lower molecular weight. rose emphasizing formation percolated network structured filler within matrix. On other side, parameters both materials strongly impacted extrusion related conditions. At nozzle temperatures (200 °C), decreasing speed, G″ curves became increasingly different with respect resin; whereas (220 influence speed insignificant, all (albeit distant those matrix) mainly overlapped. Considerations degradation kinetics during also provided fitting experimental data complex viscosity linear correlation time.
Язык: Английский
Процитировано
2
Journal of Composites Science, Год журнала: 2024, Номер 8(8), С. 305 - 305
Опубликована: Авг. 5, 2024
This study investigated the effect of two critical variables for environmental process sustainability, i.e., extruder temperature and printing rate, on thermomechanical performance accuracy in overall sample sizes, when bio-based materials. In this context, 3D specimens produced from basic polylactide (n-PLA) wood-filled PLA polymer (f-PLA) were realized using extrusion-based additive manufacturing technology (MEX) by varying nozzle temperatures (200 °C, 210 220 °C) speed (from 70 mm/s to 130 mm/s). Dynamic mechanical analysis (DMA) was carried out specimens, providing information changes storage modulus at testing 30 °C (E′30) glass transition (Tg) each condition. Measurements sizes allowed precision considerations as a function processing speed. The results revealed similar trends E′30 printed fixed n-PLA f-PLA. Infrared spectroscopy performed samples unextruded material attest potential degradation under various operating conditions. Finally, images surface verify homogeneity diameter extruded layer–layer contact interface.
Язык: Английский
Процитировано
2
Journal of Composites Science, Год журнала: 2024, Номер 8(7), С. 233 - 233
Опубликована: Июнь 22, 2024
The conventional manufacturing chain for technical ceramics is too expensive the production of small series or unique parts with complex designs. Hybrid machines that combine additive and subtractive processes can be an interesting solution to overcome this technology lock-in. However, despite great interest in hybrid metallic parts, there a lack data literature when it comes ceramics. purpose paper contribute closing gap. It first evaluate achievable geometrical tolerances according ISO 2768-2 as well surface textures composite zirconia shaped sequentially by pellet (PAM, from ceramic injection molding feedstock) finish milling. green were then debinded sintered analyze influence these steps. Compared initial exhibited shiny smooth surfaces sharp edges. Flatness, parallelism perpendicularity all achieved H (fine) class, while significantly improved, resulting arithmetic roughness (Ra) below 1.6 µm.
Язык: Английский
Процитировано
0