Cellulose Nanocrystal Inks for 3D Printing of Textured Cellular Architectures

Siqueira, Gilberto; Kokkinis, Dimitri; Libanori, Rafael; Hausmann, Michael; Gladman, A. Sydney; Neels, Antonia; Tingaut, Philippe; Zimmermann, Tanja; Lewis, Jennifer A.; Studart, André R.

doi:10.1002/adfm.201604619

Cited by 496 publications

(466 citation statements)

References 29 publications

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“…[1][2][3] Representative sustainable nanocellulose materials like cellulose nanofibers (CNFs) and cellulose nanocrystals (CNCs) have been used as primary constituent materials for additive manufacturing. [7,8] Specially, conductive cellulose inks which include conductive fillers such as graphene and carbon www.advelectronicmat.de [7,8] Specially, conductive cellulose inks which include conductive fillers such as graphene and carbon www.advelectronicmat.de…”

Section: Electrochemical Sensorsmentioning

confidence: 99%

3D Printed Disposable Wireless Ion Sensors with Biocompatible Cellulose Composites

Kim

Bao

Hausmann

et al. 2018

Adv Elect Materials

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Recent development for cellulose inks have provided methods to deal with important volume shrinkage resulting from the drying and evaporation of the dispersing solvent. [14] In order to make a reliable 3D printable ink, the relevance of understanding parameters such as the rheological properties (controlling the printability) [15] and the conductivity was evidenced by previous research. [16] Rheological aspects involve a shear-thinning behavior and the existence of a yield stress to enable a proper extrusion and shape fidelity of prior and after 3D printing. [17] The conductivity of the ink can be controlled by the addition of conductive fillers such as silver flakes, silver nanowires (AgNWs) as earlier research suggested. [18,19] Among other electrochemical sensor platforms, ion selective membrane sensors have been reported as efficient tools to detect ion analytes selectively from ion mixed solutions such as pH, [20][21][22][23] glucose, [24] or urea. [25] Furthermore, by integrating with Field Effect Transistors (FETs), the analyte information is quantitatively analyzed using Ion Selective Field Effect Transistors (ISFETs). [26][27][28] Recyclable ISFETs based on oxide semiconductors were also studied for sustainability. [29] High selectivity and stability enable ISFETs to be investigated for potential applications in biomedical and environmental fields. ISFETs are mainly controlled by the generated potential from ion selective electrodes and the generated potential influences the electrical performance of FETs. Therefore, variation of ion concentration is reflected by the fluctuation of drain current, drain voltage, or output voltage. Specially, wireless ion selective sensors are demonstrated to extract remotely ion concentration signals out of analyte solution. Consequently, a great interest was demonstrated over the past years in the fields of real-time monitoring and internet-of-things (IoT) applications. Research was conducted in integrating novel wireless technologies, such as RFID, [30][31][32][33][34] Bluetooth, [35,36] Zigbee, [37] or NFC [38] together with electrochemical sensors for wireless analytes information recovery. A conventional approach for wireless sensing with silicon-based chip technology has been already developed. [31] As the wireless communication technologies are becoming more crucial for internet-of-things (IoT) electronic devices, sensors have also been equipped with wireless data collection. A conventional way to make wireless sensor systems is to develop active sensor devices with silicon-based chip technologies integrated with an amplifier, a battery, a converter, among others. However, it is difficult to generate disposable inexpensive flexible sensors with all these rigid components. Here, 3D printed disposable wireless ion selective sensor systems with unique form factors, high sensitivity, and flexibility are reported. A 3D printable conductive ink is designed and optimized with cellulose nanofibers by addition of silver nanowires for sustainable and biocompatible sensor app...

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Section: Electrochemical Sensorsmentioning

confidence: 99%

3D Printed Disposable Wireless Ion Sensors with Biocompatible Cellulose Composites

Kim

Bao

Hausmann

et al. 2018

Adv Elect Materials

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“…They found that the CNC particles align along the printing direction by shear flow, and the CNC inks display shear-thinning behavior. 32 Hence, CNC is a suitable additive for enhancing the shear-thinning property of bioink.…”

Section: -13mentioning

confidence: 99%

3D bioprinting of liver-mimetic construct with alginate/cellulose nanocrystal hybrid bioink

Lin²,

et al. 2018

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Abstract3D bioprinting is a novel platform for engineering complex, three-dimensional (3D) tissues that mimic real ones. The development of hybrid bioinks is a viable strategy that integrates the desirable properties of the constituents. In this work, we present a hybrid bioink composed of alginate and cellulose 2 nanocrystals (CNCs) and explore its suitability for extrusion-based bioprinting. This bioink possesses excellent shear-thinning property, can be easily extruded through the nozzle, and provides good initial shape fidelity. It has been demonstrated that the viscosities during extrusion were at least two orders of magnitude lower than those at small shear rates, enabling the bioinks to be extruded through the nozzle (100 μm inner diameter) readily without clogging. This bioink was then used to print a liver-mimetic honeycomb 3D structure containing fibroblast and hepatoma cells. The structures were crosslinked with CaCl 2 and incubated and cultured for 3 days. It was found that the bioprinting process resulted in minimal cell damage making the alginate/CNC hybrid bioink an attractive bioprinting material.Graphical abstract

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“…It is fabricated by mechanical or chemical treatment of cellulose resources. CNF has been considered for many potential applications such as oil industry, composite fabrication, coating, drug delivery, 3D printing inks, smart materials and so on [1][2][3][4] . CNF is isolated from many different cellulose sources such as wood and non-wood materials 5 .…”

Section: Introductionmentioning

confidence: 99%

Properties of TEMPO-oxidized cellulose nanofiber by using aqueous counter collision

et al. 2017

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Cellulose nanofiber (CNF) isolation from different resources influences the characteristics of the CNF. There are two methods to isolate CNFs, chemical and physical methods. This paper deals with a 2,2,6,6-tetramethylpiperidine-1-oxylradical (TEMPO-oxidation) chemical method and aqueous counter collision physical method to isolate CNFs. TEMPO-oxidized cellulose nanofiber was isolated using an aqueous counter collision method from two cellulose resource including Softwood bleached kraft pulp (SW) and Hardwood bleached kraft pulp (HW) resources. The CNFs properties were studied by atomic force microscopy, cross-polarize light and UV visible spectrometer. The width of the isolated CNFs is in the range of 15 nm to 20 nm and the length of cellulose nanofibers is around 1000 nm. The HW-CNF offers better transmittance than the SW-CNF. High transmittance of CNF films from both SW-CNF and HW-CNF was observed. In addition, the birefringence of CNFs was observed under cross polarized light. The SW-CNF and HW-CNF films showed birefringence phenomenon. More clear iridescence color of HW-CNF sample than that of SW-CNF case.

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Cellulose Nanocrystal Inks for 3D Printing of Textured Cellular Architectures

Cited by 496 publications

References 29 publications

3D Printed Disposable Wireless Ion Sensors with Biocompatible Cellulose Composites

3D Printed Disposable Wireless Ion Sensors with Biocompatible Cellulose Composites

3D bioprinting of liver-mimetic construct with alginate/cellulose nanocrystal hybrid bioink

Properties of TEMPO-oxidized cellulose nanofiber by using aqueous counter collision

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