Optimized silk fibroin piezoresistive nanocomposites for pressure sensing applications based on natural polymers

Reizabal, Ander; Gonçalves, Sérgio; Brito‐Pereira, Ricardo; Costa, P.; Costa, Carlos M.; Pérez‐Álvarez, Leyre; Vilas, José Luis; Lanceros‐Méndez, S.

doi:10.1039/c8na00417j

Cited by 31 publications

(37 citation statements)

References 59 publications

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“…SF Extraction: SF extraction was performed as described in previous works. [10] After complete cleaning, silk cocoons were cut into small pieces and degummed by boiling in 0.05 wt% Na 2 CO 3 water solution during 30 min. Fibers were then rinsed in distilled water for residual silk sericin removal and dried overnight.…”

Section: Methodsmentioning

confidence: 99%

“…SF extraction was performed as described in previous works . After complete cleaning, silk cocoons were cut into small pieces and degummed by boiling in 0.05 wt% Na 2 CO 3 water solution during 30 min.…”

Section: Methodsmentioning

confidence: 99%

“…Silk fibroin (SF) polymer has been investigated for biomedical, energy storage, and electronic applications due to its excellent intrinsic characteristics.…”

Section: Introductionmentioning

confidence: 99%

“…Accordingly, some works have been focused on combining both materials to improve the SF applicability, and approach to smart functional materials based on natural materials. To obtain piezoresistive sensors, SF was successfully combined with carbon nanotubes and applied as pressures sensor. Ionic liquids were also used as additives giving to the SF the ability to respond to external electric fields to form an electric actuator .…”

Section: Introductionmentioning

confidence: 99%

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Silk Fibroin Based Magnetic Nanocomposites for Actuator Applications

et al. 2020

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Recent technological and environmental advances are being redirected to develop technologies based on advanced materials that are not dependent on fossil fuels and/or critical elements. [1] Among them, smart materials showing piezoelectric, [2] piezoresistive, [3] photosensitive, [4] or magnetics properties, [5] among others, are particularly interesting for applications such as electronics, sensors, or actuators. Polymer composites stand out in the development of smart and multifunctional materials as polymer matrixes in which suitable fillers, i,e, metallic, ceramic, or magnetic micro/ nanoparticles, are incorporated, to tailor materials response toward specific applications. [6] Furthermore, those composites are often compatible with additive manufacturing technologies that enlarges their applicability. Different synthetic polymer matrices are being used in the development of polymer composites such as thermoplastics, thermosets or elastomers, but to reduce the processing and consumption of fossil fuels, biopolymers are increasingly being used. [7] Silk fibroin (SF) polymer has been investigated for biomedical, [8] energy storage, [9] and electronic applications [10] due to its excellent intrinsic characteristics. SF is a natural macromolecular protein produced in the specialized glades of Bombyx Mori silkworm. [11] SF is packed in cocoons and acts as shield versus foreign threats, solar radiation, temperature, humidity, parasites, and predators during the

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

“…Silk fibroin (SF) polymer has been investigated for biomedical, energy storage, and electronic applications due to its excellent intrinsic characteristics.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Silk Fibroin Based Magnetic Nanocomposites for Actuator Applications

et al. 2020

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“…Unique to this study, the CNT-silk composite films also exhibited a piezoresistive behavior opening a potentially promising new way to produce biocompatible stress sensors. [84] Another particularly promising as well as surprising application for silk hybrid materials with conductivity are for sutures. [85] A recent, study by Liu et al produced biomimetic antibacterial opto-electro sensing sutures made from regenerated B. mori proteins.…”

Section: Sensors Made Of Silk-based Materialsmentioning

confidence: 99%

The Power of Silk Technology for Energy Applications

Strassburg

Zainuddin

Scheibel

2021

Advanced Energy Materials

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The energy demands that support modern industries and lifestyles are largely fulfilled by the burning of fossil fuels, [1] whose greenhouse gas by-products are a major contributing cause of global warming. [2] It has become clear that the combustion of fossil fuels at the current scale is unsustainable and more sustainable alternative energy sources must be explored to offset the contribution of fossil fuels. [3] Solar energy has an important role to play in this transition. Solar irradiation available on Earth's surface per hour far exceeds the annual global energy demand. [4] However, adaptation to solar energy has been slow due to a number of factors, such as rare or hazardous raw materials, high sensitivity to water, and short life spans. [5] Compared to the fossil fuel, which can be burned on demand, solar irradiation is subject to fluctuations caused by many factors such as weather conditions, time of the day, time of the year, and latitude. [6] Because storing solar radiation in its original form, that is, electromagnetic waves, is prohibitively difficult, its conversion prior to storage is necessary. Biological systems developed 3.5 billion years ago [7] as a process to use sunlight to drive chemical reactions through photosynthesis. Specifically, oxygenic photosynthesis, which occurs in most plants, algae, and cyanobacteria, converts carbon dioxide from the atmosphere into carbohydrates. These carbohydrates form dense and portable packets of chemical energy that can be released through cellular respiration whenever needed.The first step in following nature's example in turning light energy to chemical energy was enabled with the discovery of the photovoltaic effect by Edmond Becquerel in 1839, [8] in which the current generated by an electrochemical cell increased upon exposure to light. The first photovoltaic cells in the 19th century were based on pure metal species and exhibited low efficiencies. [9] Major efficiency improvements came in the 20th century with the incorporation of semiconductor materials into photovoltaic cells but they remained bulky and difficult to manufacture. [9] A breakthrough came in the 1980s with the advent of thin film solar cells which largely solved this problem. [9] Despite many advances, solar cells have a limited lifetime, and once their efficiencies have dropped to a no longer useful level, disposal becomes an issue due to the difficulty of recycling component materials. In addition, energy storage is often a major concern due to the limited number of hours per day photovoltaic devices are exposed to solar irradiation. Thus, Silk fibers are a remarkable material made of proteins possessing excellent mechanical properties that match or even outperform, in some aspects, high performance fibers such as Kevlar and steel. Silk proteins can be further produced recombinantly, allowing the possibility for genetic modification, enhancing silks' already impressive range of benefits. Thus far, little research has explored the possibility of incorporating silk-based materials in el...

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Biodegradable Polymer Nanocomposites for Electronics

2021

Polymer Nanocomposite Materials

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Optimized silk fibroin piezoresistive nanocomposites for pressure sensing applications based on natural polymers

Abstract: Environmental issues promote the development of sensors based on natural polymers which are becoming an area of increasing interest.

Cited by 31 publications

References 59 publications

Silk Fibroin Based Magnetic Nanocomposites for Actuator Applications

Silk Fibroin Based Magnetic Nanocomposites for Actuator Applications

The Power of Silk Technology for Energy Applications

Biodegradable Polymer Nanocomposites for Electronics

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