Electroactive properties of electrospun silk fibroin for energy harvesting applications

Vitor Sencadas; Christopher Garvey; Stephen Mudie; Jacob J. K. Kirkensgaard; Gwenaël Gouadec; Samuel Hauser

doi:10.1016/j.nanoen.2019.104106

Electroactive properties of electrospun silk fibroin for energy harvesting applications

Vitor Sencadas^*, Christopher Garvey, Stephen Mudie, Jacob J. K. Kirkensgaard, Gwenaël Gouadec, Samuel Hauser

^*Corresponding author for this work

17 Citations (Scopus)

Abstract

Silk fibroin (SF) is a sustainable material explored with success in the textile and biomedical industries. This protein has outstanding mechanical and electrical properties that could be used for advanced technological applications. In this work, silk fibroin fibrous membranes were processed by electrospinning, with conditions obtained through orthogonal experimental design. Due to their high-water affinity, the membranes were stabilized against aqueous environments by exposure to methanol (MeOH) in vapor phase. Individual SF fibres present an apparent piezoelectric constant (d₃₃) of 38 ± 2 pm/V for the as-spun ones and 28 ± 3 pm/V for those submitted to MeOH in vapor phase, a piezoelectric voltage coefficient (g₃₃) of 1.05 and 0.53 Vm.N⁻¹, respectively, a mechano-sensibility of 0.15 V kPa⁻¹, an energy storage capacity of 85 μJ, and an efficiency up to 21%. When the SF is submitted to MeOH in vapor phase, no effect was observed in the protein secondary structures. This work represents a new insight into the origin of the piezoelectric properties of SF and opens new opportunities for applications in microelectronics engineering for self-powered epidermal electronics, implantable medical devices, and personalized health care systems.

Original language	English
Article number	104106
Journal	Nano Energy
Volume	66
Number of pages	10
ISSN	2211-2855
DOIs	https://doi.org/10.1016/j.nanoen.2019.104106
Publication status	Published - 2019

Keywords

E-skin
Energy harvester
Natural proteins
Piezoelectricity
Silk fibroin

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@article{3fb35caaaf6540a7a4aeba3eef4a54cc,

title = "Electroactive properties of electrospun silk fibroin for energy harvesting applications",

abstract = "Silk fibroin (SF) is a sustainable material explored with success in the textile and biomedical industries. This protein has outstanding mechanical and electrical properties that could be used for advanced technological applications. In this work, silk fibroin fibrous membranes were processed by electrospinning, with conditions obtained through orthogonal experimental design. Due to their high-water affinity, the membranes were stabilized against aqueous environments by exposure to methanol (MeOH) in vapor phase. Individual SF fibres present an apparent piezoelectric constant (d33) of 38 ± 2 pm/V for the as-spun ones and 28 ± 3 pm/V for those submitted to MeOH in vapor phase, a piezoelectric voltage coefficient (g33) of 1.05 and 0.53 Vm.N−1, respectively, a mechano-sensibility of 0.15 V kPa−1, an energy storage capacity of 85 μJ, and an efficiency up to 21%. When the SF is submitted to MeOH in vapor phase, no effect was observed in the protein secondary structures. This work represents a new insight into the origin of the piezoelectric properties of SF and opens new opportunities for applications in microelectronics engineering for self-powered epidermal electronics, implantable medical devices, and personalized health care systems.",

keywords = "E-skin, Energy harvester, Natural proteins, Piezoelectricity, Silk fibroin",

author = "Vitor Sencadas and Christopher Garvey and Stephen Mudie and Kirkensgaard, {Jacob J. K.} and Gwena{\"e}l Gouadec and Samuel Hauser",

year = "2019",

doi = "10.1016/j.nanoen.2019.104106",

language = "English",

volume = "66",

journal = "Nano Energy",

issn = "2211-2855",

publisher = "Elsevier",

}

TY - JOUR

T1 - Electroactive properties of electrospun silk fibroin for energy harvesting applications

AU - Sencadas, Vitor

AU - Garvey, Christopher

AU - Mudie, Stephen

AU - Kirkensgaard, Jacob J. K.

AU - Gouadec, Gwenaël

AU - Hauser, Samuel

PY - 2019

Y1 - 2019

N2 - Silk fibroin (SF) is a sustainable material explored with success in the textile and biomedical industries. This protein has outstanding mechanical and electrical properties that could be used for advanced technological applications. In this work, silk fibroin fibrous membranes were processed by electrospinning, with conditions obtained through orthogonal experimental design. Due to their high-water affinity, the membranes were stabilized against aqueous environments by exposure to methanol (MeOH) in vapor phase. Individual SF fibres present an apparent piezoelectric constant (d33) of 38 ± 2 pm/V for the as-spun ones and 28 ± 3 pm/V for those submitted to MeOH in vapor phase, a piezoelectric voltage coefficient (g33) of 1.05 and 0.53 Vm.N−1, respectively, a mechano-sensibility of 0.15 V kPa−1, an energy storage capacity of 85 μJ, and an efficiency up to 21%. When the SF is submitted to MeOH in vapor phase, no effect was observed in the protein secondary structures. This work represents a new insight into the origin of the piezoelectric properties of SF and opens new opportunities for applications in microelectronics engineering for self-powered epidermal electronics, implantable medical devices, and personalized health care systems.

AB - Silk fibroin (SF) is a sustainable material explored with success in the textile and biomedical industries. This protein has outstanding mechanical and electrical properties that could be used for advanced technological applications. In this work, silk fibroin fibrous membranes were processed by electrospinning, with conditions obtained through orthogonal experimental design. Due to their high-water affinity, the membranes were stabilized against aqueous environments by exposure to methanol (MeOH) in vapor phase. Individual SF fibres present an apparent piezoelectric constant (d33) of 38 ± 2 pm/V for the as-spun ones and 28 ± 3 pm/V for those submitted to MeOH in vapor phase, a piezoelectric voltage coefficient (g33) of 1.05 and 0.53 Vm.N−1, respectively, a mechano-sensibility of 0.15 V kPa−1, an energy storage capacity of 85 μJ, and an efficiency up to 21%. When the SF is submitted to MeOH in vapor phase, no effect was observed in the protein secondary structures. This work represents a new insight into the origin of the piezoelectric properties of SF and opens new opportunities for applications in microelectronics engineering for self-powered epidermal electronics, implantable medical devices, and personalized health care systems.

KW - E-skin

KW - Energy harvester

KW - Natural proteins

KW - Piezoelectricity

KW - Silk fibroin

U2 - 10.1016/j.nanoen.2019.104106

DO - 10.1016/j.nanoen.2019.104106

M3 - Journal article

AN - SCOPUS:85072599958

SN - 2211-2855

VL - 66

JO - Nano Energy

JF - Nano Energy

M1 - 104106

ER -

Electroactive properties of electrospun silk fibroin for energy harvesting applications

Abstract

Keywords

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