A visible light-curable yet visible wavelength-transparent resin for stereolithography 3D printing

Park, Hong Key; Shin, Mikyung; Kim, Bongkyun; Park, Jin Woo; Lee, Haeshin

doi:10.1038/s41427-018-0021-x

Cited by 70 publications

(47 citation statements)

References 28 publications

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“…A post-process treatment is to cure the scaffold in UV oven. SLA allows the fabrication with complex and anatomically shaped structures [ 43 ]. Besides SLA, two-photon polymerization (2PP), where Femto-second laser beams are focused on the photosensitive liquid material that is mixed by monomeric matrix molecule and a photo initiator, is another technology.…”

Section: Fabrication Methods and 3dp For 3d Scaffoldmentioning

confidence: 99%

Trinity of Three-Dimensional (3D) Scaffold, Vibration, and 3D Printing on Cell Culture Application: A Systematic Review and Indicating Future Direction

2018

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Cell culture and cell scaffold engineering have previously developed in two directions. First can be ‘static into dynamic’, with proven effects that dynamic cultures have benefits over static ones. Researches in this direction have used several mechanical means, like external vibrators or shakers, to approximate the dynamic environments in real tissue, though such approaches could only partly address the issue. Second, can be ‘2D into 3D’, that is, artificially created three-dimensional (3D) passive (also called ‘static’) scaffolds have been utilized for 3D cell culture, helping external culturing conditions mimic real tissue 3D environments in a better way as compared with traditional two-dimensional (2D) culturing. In terms of the fabrication of 3D scaffolds, 3D printing (3DP) has witnessed its high popularity in recent years with ascending applicability, and this tendency might continue to grow along with the rapid development in scaffold engineering. In this review, we first introduce cell culturing, then focus 3D cell culture scaffold, vibration stimulation for dynamic culture, and 3DP technologies fabricating 3D scaffold. Potential interconnection of these realms will be analyzed, as well as the limitations of current 3D scaffold and vibration mechanisms. In the recommendation part, further discussion on future scaffold engineering regarding 3D vibratory scaffold will be addressed, indicating 3DP as a positive bridging technology for future scaffold with integrated and localized vibratory functions.

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Section: Fabrication Methods and 3dp For 3d Scaffoldmentioning

confidence: 99%

Trinity of Three-Dimensional (3D) Scaffold, Vibration, and 3D Printing on Cell Culture Application: A Systematic Review and Indicating Future Direction

2018

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“…At present, most of the polymerization processes done in industries are based on UV-photoinitiators giving rise to safety concerns for the manipulators. Notably, UV-light can be responsible from eye damages under accidental exposure [11,12]. This unwanted exposure can nonetheless occur in industry but also during dental treatments in dental clinics so that alternatives to UV light photoinitiators are actively researched [13].…”

Section: Introductionmentioning

confidence: 99%

Recent advances on carbazole-based photoinitiators of polymerization

Dumur

2020

European Polymer Journal

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Photoinitiators of polymerization that can be activated under visible light and low intensity are actively researched as these compounds constitute the next generation of photoinitiators that will replace the controverted UV-photoinitiators. Over the years, a family of compounds has been identified as being highly promising in light of its remarkable photoinitiating ability, photochemical stability, low cost and easiness to functionalize, namely carbazoles. In this review, an overview of the different carbazole-based photoinitiators reported to date is presented. Interestingly, carbazoles have mostly been used as electron donors in push-pull structures, as photosensitizers for iodonium salts, as ligands for ferrocenium salts or as chromophores for phenacyl onium salts. These different applications clearly demonstrate the versatility of this structure used as the elemental building block for the design of UV, near-UV or visible light photoinitiators.

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“…Some commercially available visible light PIs exist, including lithium phenyl-2,4,6-trimethylbenzoylphosphinate (LAP), camphorquinone (CQ), Eosin Y, and their derivatives. [8][9][10][11] Even though they have been shown to exhibit sufficient sensitivity in the absorption of visible light, disadvantages of each persist. For example, the low aqueous solubility of CQ limits its suitability for hydrogels.…”

Section: Introductionmentioning

confidence: 99%

Type II Photoinitiator and Tuneable Poly(Ethylene Glycol)-Based Materials Library for Visible Light Photolithography

Yang

Mina

Bas

et al. 2020

Tissue Engineering Part A

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Stereolithography (SL) has several advantages over traditional biomanufacturing techniques such as fused deposition modeling, including increased speed, accuracy, and efficiency. While SL has been broadly used in tissue engineering for the fabrication of three-dimensional scaffolds that can mimic the in vivo environment for cell growth and tissue regeneration, lithographic printing is usually performed on single-component materials cured with ultraviolet light, severely limiting the versatility and cytocompatibility of such systems. In this Color images are available online. study, we report a highly tunable, low-cost photoinitiator system that we used to establish a systematic library of crosslinked materials based on low molecular weight poly(ethylene glycol) diacrylate. We assessed the physicochemical properties, photocrosslinking efficiency, cost performance, and biocompatibility to demonstrate the capability of manufacturing a multimaterial complex tissue scaffold. Stereolithography (SL) has advantages over traditional biomanufacturing techniques, including accuracy and efficiency. While SL has been broadly used for fabricating three-dimensional scaffolds that can mimic the in vivo environment for cell growth and tissue regeneration, lithographic printing is usually performed on single-component materials cured with ultraviolet light, severely limiting the versatility and cytocompatibility of such systems. In this study, we report a highly tunable photoinitiator system and establish a systematic library of crosslinked materials based on poly(ethylene glycol) diacrylate. We assessed the physicochemical properties, photocrosslinking efficiency and biocompatibility to demonstrate the capability of manufacturing a multimaterial complex tissue scaffold.

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A visible light-curable yet visible wavelength-transparent resin for stereolithography 3D printing

Cited by 70 publications

References 28 publications

Trinity of Three-Dimensional (3D) Scaffold, Vibration, and 3D Printing on Cell Culture Application: A Systematic Review and Indicating Future Direction

Trinity of Three-Dimensional (3D) Scaffold, Vibration, and 3D Printing on Cell Culture Application: A Systematic Review and Indicating Future Direction

Recent advances on carbazole-based photoinitiators of polymerization

Type II Photoinitiator and Tuneable Poly(Ethylene Glycol)-Based Materials Library for Visible Light Photolithography

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