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

Hossein Bani Asadi; Rubina Ajdary; Jon Trifol Guzman; Orlando J. Rojas; Jukka Seppälä

doi:10.1016/j.carbpol.2021.118114

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

Hossein Bani Asadi, Rubina Ajdary, Jon Trifol Guzman, Orlando J. Rojas, Jukka Seppälä^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › Scientific › peer-review

34 Downloads (Pure)

Abstract

Direct-ink-writing (DIW) of hydrogels has become an attractive research area due to its capability to fabricate intricate, complex, and highly customizable structures at ambient conditions for various applications, including biomedical purposes. In the current study, cellulose nanofibrils reinforced aloe vera bio-hydrogels were utilized to develop 3D geometries through the DIW technique. The hydrogels revealed excellent viscoelastic properties enabled extruding thin filaments through a nozzle with a diameter of 630 μm. Accordingly, the lattice structures were printed precisely with a suitable resolution. The 3D-printed structures demonstrated significant wet stability due to the high aspect ratio of the nano- and microfibrils cellulose, reinforced the hydrogels, and protected the shape from extensive shrinkage upon drying. Furthermore, all printed samples had a porosity higher than 80% and a high-water uptake capacity of up to 46 g/g. Altogether, these fully bio-based, porous, and wet stable 3D structures might have an opportunity in biomedical fields.

Original language	English
Article number	118114
Number of pages	12
Journal	Carbohydrate Polymers
Volume	266
Early online date	24 Apr 2021
DOIs	https://doi.org/10.1016/j.carbpol.2021.118114
Publication status	Published - 15 Aug 2021
MoE publication type	A1 Journal article-refereed

Keywords

Aloe vera
Cellulose nanofibrils
Hydrogel
3D printing

Access to Document

10.1016/j.carbpol.2021.118114Licence: CC BY

CHEM_Bani_Asadi_et_al_Direct_Ink_Writing_2021_Carbohydrate_PolymersFinal published version, 3.68 MBLicence: CC BY

2 Active

BIOECONOMY: BIOECONOMY Research Infrastructure
Seppälä, J.
01/01/2020 → 31/12/2023
Project: Academy of Finland: Other research funding
VALUEBIOMAT: Bio-oils based polymeric composites; value chain from syntheisis to additive manufacturing
Seppälä, J., van Bochove, B., Teotia, A., Bani Asadi, H., Revitzer, H., Dienel, K., Borandeh, S., Äkräs, L. & Farzan, A.
01/06/2019 → 31/08/2022
Project: Academy of Finland: Strategic research funding

OtaNano
Anna Rissanen (Manager)
Aalto University
Facility/equipment: Facility
OtaNano - Nanomicroscopy Center
Jani Seitsonen (Manager)
OtaNano
Facility/equipment: Facility

Cite this

@article{2afe361c78c84c2baf82d79daa883c06,

title = "Direct ink writing of aloe vera/cellulose nanofibrils bio-hydrogels",

abstract = "Direct-ink-writing (DIW) of hydrogels has become an attractive research area due to its capability to fabricate intricate, complex, and highly customizable structures at ambient conditions for various applications, including biomedical purposes. In the current study, cellulose nanofibrils reinforced aloe vera bio-hydrogels were utilized to develop 3D geometries through the DIW technique. The hydrogels revealed excellent viscoelastic properties enabled extruding thin filaments through a nozzle with a diameter of 630 μm. Accordingly, the lattice structures were printed precisely with a suitable resolution. The 3D-printed structures demonstrated significant wet stability due to the high aspect ratio of the nano- and microfibrils cellulose, reinforced the hydrogels, and protected the shape from extensive shrinkage upon drying. Furthermore, all printed samples had a porosity higher than 80% and a high-water uptake capacity of up to 46 g/g. Altogether, these fully bio-based, porous, and wet stable 3D structures might have an opportunity in biomedical fields.",

keywords = "Aloe vera, Cellulose nanofibrils, Hydrogel, 3D printing",

author = "{Bani Asadi}, Hossein and Rubina Ajdary and {Trifol Guzman}, Jon and Rojas, {Orlando J.} and Jukka Sepp{\"a}l{\"a}",

note = "The authors would like to acknowledge funding support by the Academy of Finland funding No.13307485 (3D Biomat.), 327248 (ValueBiomat), and 327865 (Bioeconomy). This work made use of the facilities of Aalto University's Nanomicroscopy Center. The authors also would like to acknowledge the discussions with Dr. Janika Lehtonen and Dr. Arun Teotia.",

year = "2021",

month = aug,

day = "15",

doi = "10.1016/j.carbpol.2021.118114",

language = "English",

volume = "266",

journal = "Carbohydrate Polymers",

issn = "0144-8617",

}

TY - JOUR

T1 - Direct ink writing of aloe vera/cellulose nanofibrils bio-hydrogels

AU - Bani Asadi, Hossein

AU - Ajdary, Rubina

AU - Trifol Guzman, Jon

AU - Rojas, Orlando J.

AU - Seppälä, Jukka

N1 - The authors would like to acknowledge funding support by the Academy of Finland funding No.13307485 (3D Biomat.), 327248 (ValueBiomat), and 327865 (Bioeconomy). This work made use of the facilities of Aalto University's Nanomicroscopy Center. The authors also would like to acknowledge the discussions with Dr. Janika Lehtonen and Dr. Arun Teotia.

PY - 2021/8/15

Y1 - 2021/8/15

N2 - Direct-ink-writing (DIW) of hydrogels has become an attractive research area due to its capability to fabricate intricate, complex, and highly customizable structures at ambient conditions for various applications, including biomedical purposes. In the current study, cellulose nanofibrils reinforced aloe vera bio-hydrogels were utilized to develop 3D geometries through the DIW technique. The hydrogels revealed excellent viscoelastic properties enabled extruding thin filaments through a nozzle with a diameter of 630 μm. Accordingly, the lattice structures were printed precisely with a suitable resolution. The 3D-printed structures demonstrated significant wet stability due to the high aspect ratio of the nano- and microfibrils cellulose, reinforced the hydrogels, and protected the shape from extensive shrinkage upon drying. Furthermore, all printed samples had a porosity higher than 80% and a high-water uptake capacity of up to 46 g/g. Altogether, these fully bio-based, porous, and wet stable 3D structures might have an opportunity in biomedical fields.

AB - Direct-ink-writing (DIW) of hydrogels has become an attractive research area due to its capability to fabricate intricate, complex, and highly customizable structures at ambient conditions for various applications, including biomedical purposes. In the current study, cellulose nanofibrils reinforced aloe vera bio-hydrogels were utilized to develop 3D geometries through the DIW technique. The hydrogels revealed excellent viscoelastic properties enabled extruding thin filaments through a nozzle with a diameter of 630 μm. Accordingly, the lattice structures were printed precisely with a suitable resolution. The 3D-printed structures demonstrated significant wet stability due to the high aspect ratio of the nano- and microfibrils cellulose, reinforced the hydrogels, and protected the shape from extensive shrinkage upon drying. Furthermore, all printed samples had a porosity higher than 80% and a high-water uptake capacity of up to 46 g/g. Altogether, these fully bio-based, porous, and wet stable 3D structures might have an opportunity in biomedical fields.

KW - Aloe vera

KW - Cellulose nanofibrils

KW - Hydrogel

KW - 3D printing

U2 - 10.1016/j.carbpol.2021.118114

DO - 10.1016/j.carbpol.2021.118114

M3 - Article

VL - 266

JO - Carbohydrate Polymers

JF - Carbohydrate Polymers

SN - 0144-8617

M1 - 118114

ER -

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

Abstract

Keywords

Access to Document

Fingerprint

Projects

BIOECONOMY: BIOECONOMY Research Infrastructure

VALUEBIOMAT: Bio-oils based polymeric composites; value chain from syntheisis to additive manufacturing

Equipment

OtaNano

OtaNano - Nanomicroscopy Center

Cite this