<i>110th Anniversary</i>: Vat Photopolymerization-Based Additive Manufacturing: Current Trends and Future Directions in Materials Design

Appuhamillage, Gayan A.; Chartrain, Nicholas; Meenakshisundaram, Viswanath; Feller, Keyton D.; Williams, Christopher B.; Long, Timothy Edward

doi:10.1021/acs.iecr.9b02679

Cited by 94 publications

(100 citation statements)

References 85 publications

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“…Hence, SLA provides 3D fabrication of complex structures with high resolution and a low feature size (on micrometer scale), related to the spot size of the laser beam. [ 15 ] The original stereolithography apparatus by Hull used light exposure from the top to build a construct in a bottom‐up manner ( Figure ). Alternatively, exposure from the bottom can be employed to print an object top‐down.…”

Section: Vat Photopolymerizationmentioning

confidence: 99%

Sustainable Photopolymers in 3D Printing: A Review on Biobased, Biodegradable, and Recyclable Alternatives

Voet

Guit

Loos

2020

Macromol. Rapid Commun.

149

131

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The global market for 3D printing materials has grown exponentially in the last decade. Today, photopolymers claim almost half of the material sales worldwide. The lack of sustainable resins, applicable in vat photopolymerization that can compete with commercial materials, however, limits the widespread adoption of this technology. The development of “green” alternatives is of great importance in order to reduce the environmental impact of additive manufacturing. This paper reviews the recent evolutions in the field of sustainable photopolymers for 3D printing. It highlights the synthesis and application of biobased resin components, such as photocurable monomers and oligomers, as well as reinforcing agents derived from natural resources. In addition, the design of biologically degradable and recyclable thermoset products in vat photopolymerization is discussed. Together, those strategies will promote the accurate and waste‐free production of a new generation of 3D materials for a sustainable plastics economy in the near future.

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Section: Vat Photopolymerizationmentioning

confidence: 99%

Sustainable Photopolymers in 3D Printing: A Review on Biobased, Biodegradable, and Recyclable Alternatives

Voet

Guit

Loos

2020

Macromol. Rapid Commun.

149

131

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“…1,2 While many forms of AM exist, vat photopolymerization methods are advantageous for the speed at which high resolution objects can be produced. 3,4 Laser-based stereolithography (SLA) 3D printing is a form of vat photopolymerization wherein a laser is scanned through photocurable resin to selectively cure the growing feature. This method of 3D printing provides micron-scale features with good accuracy and reproducibility.…”

Section: Introductionmentioning

confidence: 99%

Additive Manufacturing of Bovine Serum Albumin-Based Hydrogels and Bioplastics

et al. 2019

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Bio-sourced and biodegradable polymers for additive manufacturing could enable the rapid fabrication of parts for a broad spectrum of applications ranging from healthcare to aerospace. However, a limited number of these materials are suitable for vat photopolymerization processes. Herein, we report a two-step additive manufacturing process to fabricate robust protein-based constructs using a commercially available laser-based SLA printer. Methacrylated bovine serum albumin (MA-BSA) was synthesized and formulated into aqueous resins that were used to print complex 3D objects with a resolution comparable to a commercially available resin. The MA-BSA resins were characterized by rheometry to determine the viscosity and the cure rate, as both of these parameters can ultimately be used to predict the printability of the resin. In the first step of patterning these materials, the MA-BSA resin was 3D printed, and in the second step, the printed construct was thermally cured to denature the globular protein and increase the intermolecular noncovalent interactions. Thus, the final 3D printed part was comprised of both chemical and physical cross-links. Compression studies of hydrated and dehydrated constructs demonstrated a broad range of compressive strengths and Young's moduli that could be further modulated by adjusting the type and amount of co-monomer. The printed hydrogel constructs demonstrated good cell viability (> 95%) after a 21-day culture period. These MA-BSA resins are expected to be compatible with other vat photopolymerization techniques including digital light projection (DLP) and continuous liquid interface production (CLIP). File list (2) download file view on ChemRxiv ChemRxiv manuscript_Nelson.pdf (2.02 MiB) download file view on ChemRxiv ChemRxiv_supporting_information_Nelson.pdf (2.95 MiB)

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“…The subsequent layers are built by recoating a new layer and its patterning with a UV beam. The controlling parameters in this technique are scanning speed, exposure time, laser power, material composition, and photoinitiator[ 17 ]. Three different mechanisms are used in vat-based photopolymerization methods, including vector scan SL, mask projection, and two-photon approach ( Figure 5 ).…”

Section: 3dp Process Techniquesmentioning

confidence: 99%

3D Printing Technologies in Metallic Implants: A Thematic Review on the Techniques and Procedures

Attarilar¹,

Ebrahimi²,

Djavanroodi³

et al. 2024

IJB

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Additive manufacturing (AM) is among the most attractive methods to produce implants, the processes are very swift and it can be precisely controlled to meet patient’s requirement since they can be produced in exact shape, dimension, and even texture of different living tissues. Until now, lots of methods have emerged and used in this field with diverse characteristics. This review aims to comprehensively discuss 3D printing (3DP) technologies to manufacture metallic implants, especially on techniques and procedures. Various technologies based on their main properties are categorized, the effecting parameters are introduced, andthe history of AM technology is briefly analyzed. Subsequently, the utilization of these AM-manufactured components in medicine along with their effectual variables is discussed, and special attention is paid on to the production of porous scaffolds, taking pore size, density, etc., into consideration. Finally, 3DP of the popular metallic systems in medical applications such as titanium, Ti6Al4V, cobalt-chromium alloys, and shape memory alloys are studied. In general, AM manufactured implants need to comply with important requirements such as biocompatibility, suitable mechanical properties (strength and elastic modulus), surface conditions, custom-built designs, fast production, etc. This review aims to introduce the AM technologies in implant applications and find new ways to design more sophisticated methods and compatible implants that mimic the desired tissue functions.

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110th Anniversary: Vat Photopolymerization-Based Additive Manufacturing: Current Trends and Future Directions in Materials Design

Cited by 94 publications

References 85 publications

Sustainable Photopolymers in 3D Printing: A Review on Biobased, Biodegradable, and Recyclable Alternatives

Sustainable Photopolymers in 3D Printing: A Review on Biobased, Biodegradable, and Recyclable Alternatives

Additive Manufacturing of Bovine Serum Albumin-Based Hydrogels and Bioplastics

3D Printing Technologies in Metallic Implants: A Thematic Review on the Techniques and Procedures

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