Thermo-Responsive Shape Memory Vanillin-Based Photopolymers for Microtransfer Molding

Jaras, Justinas; Navaruckienė, Auksė; Skliutas, Edvinas; Jersovaite, Jurga; Malinauskas, Mangirdas; Ostrauskaitė, Jolita

doi:10.3390/polym14122460

Cited by 7 publications

(3 citation statements)

References 37 publications

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“…Compared to photolithography, this technique undergoes fewer steps and can manufacture multiple OoAC devices in a shorter period [ 165 ]. Within the family of soft lithography are various patterning techniques such as replica moulding (REM), micro-transfer moulding, phase-shifting edge lithography, and nano-transfer printing [ 118 , 166 , 167 ]. REM, which has recently emerged as an improved method for fabricating microfluidic devices using PDMS, involves three basic steps: (1) constructing a desired master, (2) transferring the master’s design on the PDMS, and (3) transferring the PDMS’s pattern back into a duplicate of the original master by UV/heat curing liquid the pre-polymer or thermosensitive resin [ 118 ].…”

Section: Fabrication Techniques For Microfluidic Systemsmentioning

confidence: 99%

Microfluidic Organ-on-A-chip: A Guide to Biomaterial Choice and Fabrication

Cao

Zhang

Chen

et al. 2023

IJMS

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Organ-on-a-chip (OoAC) devices are miniaturized, functional, in vitro constructs that aim to recapitulate the in vivo physiology of an organ using different cell types and extracellular matrix, while maintaining the chemical and mechanical properties of the surrounding microenvironments. From an end-point perspective, the success of a microfluidic OoAC relies mainly on the type of biomaterial and the fabrication strategy employed. Certain biomaterials, such as PDMS (polydimethylsiloxane), are preferred over others due to their ease of fabrication and proven success in modelling complex organ systems. However, the inherent nature of human microtissues to respond differently to surrounding stimulations has led to the combination of biomaterials ranging from simple PDMS chips to 3D-printed polymers coated with natural and synthetic materials, including hydrogels. In addition, recent advances in 3D printing and bioprinting techniques have led to the powerful combination of utilizing these materials to develop microfluidic OoAC devices. In this narrative review, we evaluate the different materials used to fabricate microfluidic OoAC devices while outlining their pros and cons in different organ systems. A note on combining the advances made in additive manufacturing (AM) techniques for the microfabrication of these complex systems is also discussed.

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Section: Fabrication Techniques For Microfluidic Systemsmentioning

confidence: 99%

Microfluidic Organ-on-A-chip: A Guide to Biomaterial Choice and Fabrication

Cao

Zhang

Chen

et al. 2023

IJMS

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“…The cornerstone of 4D printing lies in the utilization of intelligent biomimetic printing consumables, which empower printed objects to undergo changes in their shapes or properties in response to external environmental stimuli, such as stress [5], temperature [6], moisture [7], pH [8], and electricity [9]. Among the array of smart materials available, photocurable shape memory polymers (PSMPs) are prominently employed as 4D-printable consumables in light-curing technologies [10][11][12]. They boast remarkable attributes, including high printing precision, superb resolution, and an aesthetically pleasing finish for the printed products.…”

Section: Introductionmentioning

confidence: 99%

A 4D-Printable Photocurable Resin Derived from Waste Cooking Oil with Enhanced Tensile Strength

Liu,

Fan

et al. 2024

Molecules

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In pursuit of enhancing the mechanical properties, especially the tensile strength, of 4D-printable consumables derived from waste cooking oil (WCO), we initiated the production of acrylate-modified WCO, which encompasses epoxy waste oil methacrylate (EWOMA) and epoxy waste oil acrylate (EWOA). Subsequently, a series of WCO-based 4D-printable photocurable resins were obtained by introducing a suitable diacrylate molecule as the second monomer, coupled with a composite photoinitiator system comprising Irgacure 819 and p-dimethylaminobenzaldehyde (DMAB). These materials were amenable to molding using an LCD light-curing 3D printer. Our findings underscored the pivotal role of triethylene glycol dimethacrylate (TEGDMA) among the array of diacrylate molecules in enhancing the mechanical properties of WCO-based 4D-printable resins. Notably, the 4D-printable material, composed of EWOA and TEGDMA in an equal mass ratio, exhibited nice mechanical strength comparable to that of mainstream petroleum-based 4D-printable materials, boasting a tensile strength of 9.17 MPa and an elongation at break of 15.39%. These figures significantly outperformed the mechanical characteristics of pure EWOA or TEGDMA resins. Furthermore, the EWOA-TEGDMA resin demonstrated impressive thermally induced shape memory performance, enabling deformation and recovery at room temperature and retaining its shape at −60 °C. This resin also demonstrated favorable biodegradability, with an 8.34% weight loss after 45 days of soil degradation. As a result, this 4D-printable photocurable resin derived from WCO holds immense potential for the creation of a wide spectrum of high-performance intelligent devices, brackets, mold, folding structures, and personalized products.

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“…Therefore, the aim of this work was to develop new biobased thermoresponsive shape-memory polymers by photocuring using C13-MA and THFA, which are still poorly investigated. Only a few articles are published on thermoresponsive shape-memory biobased photopolymers, showing that it is a new and promising type of material [ 19 , 20 , 21 ].…”

Section: Introductionmentioning

confidence: 99%

Thermoresponsive Shape-Memory Biobased Photopolymers of Tetrahydrofurfuryl Acrylate and Tridecyl Methacrylate

2023

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A series of thermoresponsive shape-memory photopolymers have been synthesized from the mixtures of two biobased monomers, tetrahydrofurfuryl acrylate and tridecyl methacrylate, with the addition of a small amount of 1,3-benzendithiol (molar ratio of monomers 0–10:0.5:0.03, respectively). Ethyl (2,4,6 trimethylbenzoyl) phenylphosphinate was used as photoinitiator. The calculated biorenewable carbon content of these photopolymers was in the range of (63.7–74.9)%. The increase in tetrahydrofurfuryl acrylate content in the photocurable resins resulted in a higher rate of photocuring, increased rigidity, as well as mechanical and thermal characteristics of the obtained polymers. All photopolymer samples showed thermoresponsive shape-memory behavior when reaching their glass transition temperature. The developed biobased photopolymers can replace petroleum-derived thermoresponsive shape-memory polymer analogues in a wide range of applications.

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Thermo-Responsive Shape Memory Vanillin-Based Photopolymers for Microtransfer Molding

Cited by 7 publications

References 37 publications

Microfluidic Organ-on-A-chip: A Guide to Biomaterial Choice and Fabrication

Microfluidic Organ-on-A-chip: A Guide to Biomaterial Choice and Fabrication

A 4D-Printable Photocurable Resin Derived from Waste Cooking Oil with Enhanced Tensile Strength

Thermoresponsive Shape-Memory Biobased Photopolymers of Tetrahydrofurfuryl Acrylate and Tridecyl Methacrylate

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