Direct ink writing of aloe vera/cellulose nanofibrils bio-hydrogels

Baniasadi, Hossein; Ajdary, Rubina; Trifol, Jon; Rojas, Orlando J.; Seppälä, Jukka

doi:10.1016/j.carbpol.2021.118114

Cited by 65 publications

(33 citation statements)

References 77 publications

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“…The porosity of the samples was obtained according to the ethanol saturation method described by Baniasadi et al [28] . First, the samples were cut into slices of 5 mm of thickness, in the case of apple and beetroot, the samples were obtained from the sides of the product, avoiding the presence of seeds or irregularities.…”

Section: Methodsmentioning

confidence: 99%

Measurement of microstructural changes promoted by ultrasound application on plant materials with different porosity

Umaña

Calahorro

Eim

et al. 2022

Ultrasonics Sonochemistry

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Section: Methodsmentioning

confidence: 99%

Measurement of microstructural changes promoted by ultrasound application on plant materials with different porosity

Umaña

Calahorro

Eim

et al. 2022

Ultrasonics Sonochemistry

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“…In this sense, hydrogels from natural polymers for 3D bioprinting are gaining notoriety to produce scaffolds for applications such as wound dressing [ 2 ]. In particular, polysaccharides and proteins are applied as bioinks for 3D printing [ 3 , 4 , 5 ]. Among them, chitosan has caught attention due to its antimicrobial activity [ 6 , 7 ].…”

Section: Introductionmentioning

confidence: 99%

3D Printed Chitosan-Pectin Hydrogels: From Rheological Characterization to Scaffold Development and Assessment

Zarandona

Bengoechea

Álvarez‐Castillo

et al. 2021

Gels

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Chitosan-pectin hydrogels were prepared, and their rheological properties were assessed in order to select the best system to develop scaffolds by 3D printing. Hydrogels showed a weak gel behavior with shear thinning flow properties, caused by the physical interactions formed between both polysaccharides, as observed by FTIR analysis. Since systems with high concentration of pectin showed aggregations, the system composed of 2 wt% chitosan and 2 wt% pectin (CHI2PEC2) was selected for 3D printing. 3D printed scaffolds showed good shape accuracy, and SEM and XRD analyses revealed a homogeneous and amorphous structure. Moreover, scaffolds were stable and kept their shape and size after a cycle of compression sweeps. Their integrity was also maintained after immersion in PBS at 37 °C, showing a high swelling capacity, suitable for exudate absorption in wound healing applications.

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“…Figure 4d at 200 nm scale shows in the upper left corner the network structure of the PMF present in the hydrogel. This 3D structure is responsible for supporting the mass of water present in the hydrogel (Baniasadi et al, 2021). Furthermore, it is possible to verify the presence of some Si nanoparticles that are adsorbed to the PMF fibers.…”

Section: Transmission Electron Microscopy Of Compositesmentioning

confidence: 85%

Melamine-formaldehyde-silica and melamine-silica-cellulose composites in removing Iron and N-ammonia from landfill leachate

Santos

Junior

Silva

et al. 2021

RSD

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Melamine-formaldehyde based composites are versatile and can be applied in the treatment of contaminated effluents such as landfill leachate that have a high pollutant load, as they are rich in nitrogen atoms, the sites allow interaction with molecules, atoms or ions of interest. Aiming compares the efficiency of two materials based on the same precursors, evaluating the efficiency of two composites, melamine-silica (PMF-Si) and melamine-silica-cellulose (Cel-M-Si) in removing iron and ammonia nitrogen in landfill leachate. Adsorption kinetics showed that PMF-Si and Cel-M-Si composites adsorb iron from 30 min, with an average removal of ~ 93.4%. Application of Cel-M-Si to removed leachate ca. 75.7% iron and 76.6% ammonia nitrogen. In contrast, it was observed that PMF-Si had a removal efficiency of 70.9% for iron and 55.0% for ammonia nitrogen. The comparative tests allowed to conclude that the composites PMF-Si and Cel-M-Si have potential for the treatment of landfill leachate, being low cost materials and easy synthesis.

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Direct ink writing of aloe vera/cellulose nanofibrils bio-hydrogels

Cited by 65 publications

References 77 publications

Measurement of microstructural changes promoted by ultrasound application on plant materials with different porosity

Measurement of microstructural changes promoted by ultrasound application on plant materials with different porosity

3D Printed Chitosan-Pectin Hydrogels: From Rheological Characterization to Scaffold Development and Assessment

Melamine-formaldehyde-silica and melamine-silica-cellulose composites in removing Iron and N-ammonia from landfill leachate

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