High-Performance Photoinitiating Systems for LED-Induced Photopolymerization

Liu, Shaohui; Borjigin, Timur; Schmitt, Michael; Morlet‐Savary, Fabrice; Xiao, Pu; Lalevée, Jacques

doi:10.3390/polym15020342

Cited by 28 publications

(13 citation statements)

References 158 publications

(154 reference statements)

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“…The typical I of PIs for biomedical applications includes lithium phenyl-2,4,6trimethylbenzoylphosphinate (LAP) and Irgacure 2959 (figure 5(B)), both of them can be initiated under 365 nm of wavelength. Type II of PIs are more complex in their initiating reactions than type I PIs, which rely on the combination of two molecules, like tris-bipyridyl-ruthenium (II) hexahydrate (Ru) and sodium persulfate (SPS) [56]. The first molecule absorbs the photon, which is often called the PI or the photosensitizer (PS).…”

Section: Pis and Photocrosslinking Reactionsmentioning

confidence: 99%

Advances in volumetric bioprinting

Jing,

Lian,

Hou

et al. 2023

Biofabrication

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The three-dimensional (3D) bioprinting technologies are suitable for biomedical applications owing to their ability to manufacture complex and high-precision tissue constructs. However, the slow printing speed of current layer-by-layer (bio)printing modality is the major limitation in biofabrication field. To overcome this issue, volumetric bioprinting (VBP) is developed. VBP changes the layer-wise operation of conventional devices, permitting the creation of geometrically complex, centimeter-scale constructs in tens of seconds. VBP is the next step onward from sequential biofabrication methods, opening new avenues for fast additive manufacturing (AM) in the fields of tissue engineering, regenerative medicine, personalized drug testing, and soft robotics, etc. Therefore, this review introduces the printing principles and hardware designs of VBP-based techniques; then focuses on the recent advances in VBP-based (bio)inks and their biomedical applications. Lastly, the current limitations of VBP are discussed together with future direction of research.

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Section: Pis and Photocrosslinking Reactionsmentioning

confidence: 99%

Advances in volumetric bioprinting

Jing,

Lian,

Hou

et al. 2023

Biofabrication

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“…In addition, longer exposure wavelengths are beneficial for deeper curing and resulting better adhesive properties. [11][12][13][14][15] Thus, it has become a popular research topic to develop high photoreactivity with well-matched of the longer LED light irradiations.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of One‐Component Type II Visible‐Light‐Absorbing Chalcones Containing Fused Aromatic Rings and Investigation of Free Radical Photopolymerization Properties

Yen,

Ni,

Chen

2024

Macro Chemistry & Physics

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This paper presents four one‐component Type II visible‐light‐absorbing chalcones (CY10‐13) that containing various fused aromatic rings as its π‐conjugated moiety, that is a 2‐naphthalene moiety for CY10, 1‐naphthalene for CY11, benzofuran for CY12 and benzothiophene for CY13. The absorption region changed significantly when introducing various fused aromatic rings. However, they all exhibited good absorption properties ranging from 300 to 450 nm that could be well‐matched under UV, 365 nm and 405 nm light irradiations. Furthermore, the structure–reactivity relationship was also studied through thermal, photochemical, electrochemical and computation properties. Finally, all the chalcones demonstrated photoinitiating ability without additive additional hydrogen donor in their systems. Both of the CY11 and CY12 based photoinitiating formulations initiated sufficiently upon UV and LED@405 nm light exposures. Furthermore, triphenylamine‐substituted chalcone analogous (CY8) was added for comparison. Although CY10‐13 compounds had lower light harvesting regions than CY8, some of those new chalcones exhibited better photoreactivity. Thus, a chalcone containing fused aromatic ring featuring straightforward synthesis as well as versatile absorption region and photoinitiating performance, has great potential in photopolymerization applications.This article is protected by copyright. All rights reserved

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“…27–49 Moreover, photopolymerization frequently offers a rapid cure, allowing for quick processing and lower costs. 14 The primary driving forces behind this technique are not only the environmental and practical advantages it offers, but also the recent advancements in this field in terms of technology, 50,51 reactions, 15–19 and applications. 13 As a result, photopolymerization has found use in a variety of fields, including biomaterials, 51–53 3D printing, 54–57 the microelectronics industry, 13,58,59 coatings, 60–62 and adhesives.…”

Section: Introductionmentioning

confidence: 99%