Poly(ethylene glycol) diacrylate as a novel chaotropic compound for design of aqueous biphasic systems

Vuksanović, Jelena M.; Kijevčanin, Mirjana Lj.; Radović, Ivona R.

doi:10.1016/j.molliq.2018.04.023

Cited by 10 publications

(5 citation statements)

References 60 publications

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“…In contrast, the peak band at 1650 cm −1 corresponds to the C=O tensile bonds present in the PVP structure [39,40]. In addition, bands derived from the crosslinking agent visible at a wavelength of 1730 cm −1 were also identified [41,42]. All presented FT-IR spectra are similar, and the absence of significant changes does not indicate degradation of the developed materials.…”

Section: Results Of Infrared Spectroscopy Analysismentioning

confidence: 86%

Investigation of Physicochemical Properties and Surface Morphology of Hydrogel Materials Incorporating Rosehip Extract

Kędzierska,

Sala,

Bańkosz

et al. 2023

Materials

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Hydrogel materials are used in many fields of science and industry. They are of particular importance in biomedical applications. In this work, hydrogels were obtained that could act as a dressing for wounds, at the same time being a carrier of substances with antioxidant activity. The discussed materials were obtained in the field of UV radiation. The correlation between the amount of photoinitiator used and the physicochemical properties and surface morphology of the obtained materials was investigated. In addition, the hydrogels have been incorporated with wild rose extract, which is characterized by antioxidant and anti-inflammatory effects. The analysis of the sorption capacity confirmed that the obtained material is able to absorb significant amounts of incubation fluids, which, in terms of application, will enable the absorption of exudate from the wound. The highest stability of materials was noted for hydrogels obtained with the use of intermediate amounts of photoinitiator, i.e., 50 µL and 70 µL. In the case of using 20 µL or 100 µL, the photopolymerization process did not proceed properly and the obtained material was characterized by a lack of homogeneity and high brittleness. With the increase in the amount of photoinitiator, an increase in the surface roughness of hydrogel materials was confirmed. In turn, spectroscopic analysis ruled out the degradation of materials in incubation fluids, indicating the potential for their use in biomedical applications.

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Section: Results Of Infrared Spectroscopy Analysismentioning

confidence: 86%

Investigation of Physicochemical Properties and Surface Morphology of Hydrogel Materials Incorporating Rosehip Extract

Kędzierska,

Sala,

Bańkosz

et al. 2023

Materials

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“…The PEGDA ink can be crosslinked efficiently into shaped constructs within 10 min of UV exposure when both the ink and the bath were supplemented with photoinitiators (Figure 3b‐ii), while the ink was not able to be sufficiently crosslinked when photoinitiators were present in the ink only (Figure 3b‐iii). This indicates that polymerisation is sufficiently faster than the diffusion of PEGDA even though the ink viscosity is relatively low (≈20 mPa s [ 30 ] ). Overall, the results suggest that a balanced amount of photoinitiators in the ink and the bath is required for minimizing light exposure time, and when minimized usage of photoinitiators is preferred, a system with the bath supplemented with photoinitiators has better polymerisation efficiency than an ink‐supplemented system.…”

Section: Resultsmentioning

confidence: 99%

Soft Hydrogel Shapeability via Supportive Bath Matching in Embedded 3D Printing

Lei

Zhang

et al. 2023

Adv Materials Technologies

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Embedded 3D printing is widely adapted for fabricating architected soft and non‐self‐supporting hydrogels for applications ranging from tissue engineering to soft robotics. Although the matching between hydrogels and supportive baths sets the foundation in embedded 3D printing, the rule‐of‐thumb for supportive bath selection and creation is not yet established. Herein, the “shapeability” of distinct classes of hydrogel inks (i.e., pH‐responsive, photo‐crosslinkable, thermal‐sensitive, chemically crosslinkable monomeric, and cationic and anionic inks) in diverse representative support baths (i.e., gelatin slurry, agarose fluid gel, Carbopol and oil‐based baths) is evaluated. The results show that the dominate mechanisms for interfacial instabilities, including diffusion‐driven or charge‐driven, can be predicted by evaluating the composition pairing of the pre‐crosslinked hydrogel ink and supportive bath. Based on this, a general and simplistic guideline for supportive bath selection to attain hydrogel shapeability is proposed. The approach can widen the spectrum of hydrogel materials that can be structured on‐demand for a plethora of functionalities.

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“…In addition, as shown in Fig. 2 b, the printer is capable of printing a wide variety of biomaterials, from Poly(ethylene glycol) diacrylate (PEGDA, a low viscosity ink with viscosity 20 mPa s 30 ), collagen, silicone elastomer (see Supplementary Fig. 8 ) to a highly viscous solution of sodium carboxyl methyl cellulose (1500 Pa s).…”

Section: Resultsmentioning

confidence: 99%

A hackable, multi-functional, and modular extrusion 3D printer for soft materials

Lei

Sheng

Lei

et al. 2022

Sci Rep

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Three-dimensional (3D) printing has emerged as a powerful tool for material, food, and life science research and development, where the technology’s democratization necessitates the advancement of open-source platforms. Herein, we developed a hackable, multi-functional, and modular extrusion 3D printer for soft materials, nicknamed Printer.HM. Multi-printhead modules are established based on a robotic arm for heterogeneous construct creation, where ink printability can be tuned by accessories such as heating and UV modules. Software associated with Printer.HM were designed to accept geometry inputs including computer-aided design models, coordinates, equations, and pictures, to create prints of distinct characteristics. Printer.HM could further perform versatile operations, such as liquid dispensing, non-planar printing, and pick-and-place of meso-objects. By ‘mix-and-match’ software and hardware settings, Printer.HM demonstrated printing of pH-responsive soft actuators, plant-based functional hydrogels, and organ macro-anatomical models. Integrating affordability and open design, Printer.HM is envisaged to democratize 3D printing for soft, biological, and sustainable material architectures.

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Poly(ethylene glycol) diacrylate as a novel chaotropic compound for design of aqueous biphasic systems

Cited by 10 publications

References 60 publications

Investigation of Physicochemical Properties and Surface Morphology of Hydrogel Materials Incorporating Rosehip Extract

Investigation of Physicochemical Properties and Surface Morphology of Hydrogel Materials Incorporating Rosehip Extract

Soft Hydrogel Shapeability via Supportive Bath Matching in Embedded 3D Printing

A hackable, multi-functional, and modular extrusion 3D printer for soft materials

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