Development of foam-based support material for coaxial bioprinting of ionically crosslinking bioinks

Madadian, Elias; Badr, Sara; MacDonald, Debra S.; Tasker, R. Andrew; Ahmadi, Ali

doi:10.1016/j.bprint.2023.e00281

Cited by 4 publications

(2 citation statements)

References 33 publications

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“…The final dimensions of the support for the collapse test are 4 mm, 5 mm, 6 mm, 8 mm and 10 mm. The support has similar geometry than the one used by previous studies 53–55 The material was printed on the edge of the support with an EPL zoom webcam 2MPixel camera positioned on the side of the printer to record the procedure. The footage from the camera was utilized to determine the time at which the specimen failed.…”

Section: Methods and Productionmentioning

confidence: 99%

Flax fibre reinforced alginate poloxamer hydrogel: assessment of mechanical and 4D printing potential

de Kergariou,

Day,

Perriman

et al. 2024

Soft Matter

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Section: Methods and Productionmentioning

confidence: 99%

Flax fibre reinforced alginate poloxamer hydrogel: assessment of mechanical and 4D printing potential

de Kergariou,

Day,

Perriman

et al. 2024

Soft Matter

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“…Albumin, a well-known foaming agent, [25][26][27] has been previously used as a biocompatible and biodegradable material. [28] It is a natural water-soluble protein present in human blood, bovine serum, and chicken egg white.…”

Section: Introductionmentioning

confidence: 99%

In‐Foam Bioprinting: An Embedded Bioprinting Technique with Self‐Removable Support Bath

Madadian,

Ravanbakhsh,

Touani Kameni

et al. 2024

Small Science

Self Cite

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The emergence of embedded three‐dimensional (3D) bioprinting has revolutionized the biofabrication of free‐form constructs out of low‐viscosity and slow‐crosslinking hydrogels. Using gel‐based support baths has limitations including lack of proper oxygenation and nutrition and complications with bath removal. Herein, a novel‐embedded 3D bioprinting technique is developed with an albumin foam support bath as a promising substitute. The proposed technique, in‐foam bioprinting, offers excellent printability and convenience in bath removal while providing cells with easy access to oxygen and nutrients. The foam‐based support bath is characterized through foam stability and rheological tests. The bubble size in the foam is measured to study the change in the structure of the bath due to the coalescence of the bubbles over time. Free‐form structures are successfully 3D printed with thermoresponsive chitosan‐based bioinks to demonstrate the capability of the in‐foam bioprinting technique. The viability of bioprinted fibroblast L929 cells is studied over a seven‐day period, showing high cell viability of over 97%, which is attributed to the abundance of oxygen and nutrition in the foam support bath. Importantly, in‐foam bioprinting is beneficial for biofabricating large samples with a long printing time without jeopardizing cell viability.

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A mist-based crosslinking technique for coaxial bioprinting of hollow hydrogel fibers

Badr,

Madadian,

MacDonald

et al. 2023

Bioprinting

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Development of foam-based support material for coaxial bioprinting of ionically crosslinking bioinks

Cited by 4 publications

References 33 publications

Flax fibre reinforced alginate poloxamer hydrogel: assessment of mechanical and 4D printing potential

Flax fibre reinforced alginate poloxamer hydrogel: assessment of mechanical and 4D printing potential

In‐Foam Bioprinting: An Embedded Bioprinting Technique with Self‐Removable Support Bath

A mist-based crosslinking technique for coaxial bioprinting of hollow hydrogel fibers

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