Strain Sensors: Coco Stretch: Strain Sensors Based on Natural Coconut Oil and Carbon Black Filled Elastomers (Adv. Mater. Technol. 2/2021)

Lugoda, Pasindu; Costa, Júlio C.; García-García, Leonardo A.; Pouryazdan, Arash; Jocys, Zygimantas; Spina, Filippo; Salvage, Jonathan P.; Roggen, Daniel; Münzenrieder, Niko

doi:10.1002/admt.202170012

Cited by 4 publications

(2 citation statements)

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“…First, alternative sustainable materials, which have to fulfill specific requirements, including programmable dissolution [5,6] and biodegradability, [7,8] need to be deployed. In this perspective, hydrogels, [9,10] soft polymers, [11] and plant-derived natural compounds [12] have showed stable performance as conductors, insulators and semiconductors. [13] Among these, the use of paper or cellulose-based materials has been widely explored as substrate material [14] for flexible electronics.…”

Section: Introductionmentioning

confidence: 99%

Laser‐Induced, Green and Biocompatible Paper‐Based Devices for Circular Electronics

Cantarella

Madagalam

Merino

et al. 2023

Adv Funct Materials

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The growing usage and consumption of electronics-integrated items into the daily routine has raised concerns on the disposal and proper recycling of these components. Here, a fully sustainable and green technology for the fabrication of different electronics on fruit-waste derived paper substrate, is reported. The process relies on the carbonization of the topmost surface of different cellulose-based substrates, derived from apple-, kiwi-, and grape-based processes, by a CO 2 laser. By optimizing the lasing parameters, electronic devices, such as capacitors, biosensors, and electrodes for food monitoring as well as heart and respiration activity analysis, are realized. Biocompatibility tests on fruit-based cellulose reveal no shortcoming for onskin applications. The employment of such natural and plastic-free substrate allows twofold strategies for electronics recycling. As a first approach, device dissolution is achieved at room temperature within 40 days, revealing transient behavior in natural solution and leaving no harmful residuals. Alternatively, the cellulose-based electronics is reintroduced in nature, as possible support for plant seeding and growth or even soil amendment. These results demonstrate the realization of green, low-cost and circular electronics, with possible applications in smart agriculture and the Internet-of-Thing, with no waste creation and zero or even positive impact on the ecosystem.

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Section: Introductionmentioning

confidence: 99%

Laser‐Induced, Green and Biocompatible Paper‐Based Devices for Circular Electronics

Cantarella

Madagalam

Merino

et al. 2023

Adv Funct Materials

Self Cite

View full text Add to dashboard Cite

show abstract

“…In literature, there is also a growing interest in developing green piezoresistors utilizing degradable materials. [ 30,41,46–54 ] In contrast to wearable interconnects, piezoresistors require a linear, large, and repeatable change in resistance over a wide range of strains. [ 19,24,35 ] Additionally, there are various requirements inside the piezoresistors category itself.…”

Section: Introductionmentioning

confidence: 99%

A Green Electrically Conductive Textile with Tunable Piezoresistivity and Transiency

Cataldi

Steiner

Liu

et al. 2023

Adv Funct Materials

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A green textile-based conductor with controllable electrical resistance change with deformation and transiency (i.e., dissolution in water) will be the holy grail in wearable electronics since it can satisfy divergent needs with a single solution and be sustainable simultaneously. Nevertheless, designing such material is challenging since opposite requirements shall be satisfied. To solve such a problem, cotton is functionalized using conductive inks made of graphene or carbon nanofiber, a biodegradable polyvinyl alcohol binder, and environmentally friendly solvents. The electrical resistance shows an anisotropic response to bending depending on the composition of the coating and the stress direction, functioning either as a deformable compliant electrode or a tunable piezoresistor. Indeed, it can withstand thousands of bending cycles with a change in resistance of less than 5% or change its resistance by many orders of magnitude with the same deformation thanks to the combination of cotton twill and different nanofillers. A simple modification in the binder composition adding waterborne polyurethane allows the coating to go from entirely transient in water within minutes to withstanding simulated washing cycles for hours without losing its electrical conductivity. This green versatile conductor may serve opposing needs by altering the material composition and the deformation direction.

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Fabrication of Flexible and Transferable RTDs via Fused Deposition Modelling 3D Printing

Tan

Nokhodchi

Münzenrieder

2021

2021 IEEE International Conference on Flexible and Printable Sensors and Systems (FLEPS)

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Strain Sensors: Coco Stretch: Strain Sensors Based on Natural Coconut Oil and Carbon Black Filled Elastomers (Adv. Mater. Technol. 2/2021)

Cited by 4 publications

References 0 publications

Laser‐Induced, Green and Biocompatible Paper‐Based Devices for Circular Electronics

Laser‐Induced, Green and Biocompatible Paper‐Based Devices for Circular Electronics

A Green Electrically Conductive Textile with Tunable Piezoresistivity and Transiency

Fabrication of Flexible and Transferable RTDs via Fused Deposition Modelling 3D Printing

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