Pyroprotein-based electronic textiles with high thermal durability

Jeon, Jun Woo; Oh, Joo Young; Cho, Se Youn; Lee, Sungho; Jang, Hyun-Seok; Jung, Won Taek; Kim, Jeong-Gyun; Kim, Hyeonbeom; Kim, Hyuk Jin; Kim, SeongYeon; Han, Songlee; Kim, Junho; Chang, Young Jun; Suh, Dongseok; Jin, Hyoung‐Joon; Kim, Byung Hoon

doi:10.1016/j.mattod.2018.03.038

Cited by 6 publications

(6 citation statements)

References 37 publications

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“…Moreover, the M650 samples were found to show a performance similar to that of the pyroprotein-based e-textiles fabricated by heat treatment at 1000 °C. 31 The XPS results showed that P650 and M650 had numerous heteroatoms. They acted as a potential barrier between carbon clusters.…”

Section: Resultsmentioning

confidence: 98%

“…The β-sheet structures of silk proteins can be thermally transformed into a sp 2 -hybridized carbon hexagonal structure by simple heat treatment. , By exploiting these properties, pyroprotein-based e-textiles obtained from commercial silks were recently reported. Pyroprotein-based e-textiles show high electrical conductivity, thermal durability, and bending stability . However, it takes a long time and requires a lot of energy to fabricate pyroprotein-based e-textiles, due to the high-temperature procedure.…”

Section: Introductionmentioning

confidence: 99%

“…Pyroprotein-based etextiles show high electrical conductivity, thermal durability, and bending stability. 31 However, it takes a long time and requires a lot of energy to fabricate pyroprotein-based etextiles, due to the high-temperature procedure.…”

Section: Introductionmentioning

confidence: 99%

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Commercial Silk-Based Electronic Yarns Fabricated Using Microwave Irradiation

Choi

Lee

et al. 2019

ACS Appl. Mater. Interfaces

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Electronic textiles (e-textiles) are being developed because of their potential applications in wearable and flexible electronics. However, complex procedures and chemical agents are required to synthesize carbon-based e-textiles. Pyroprotein-based e-textiles, obtained by the pyrolysis of silk proteins, consume large amounts of time and energy due to the high-temperature process (from 800 to 2800 °C). In this study, we report a novel method of fabricating pyroprotein-based electronic yarns (e-yarns) using microwave irradiation. Microwaves were applied to pyroprotein treated at 650 °C to remove numerous heteroatoms in a short time without the high-temperature process and chemical agents. The structural modulation was confirmed by Raman spectroscopy and X-ray photoelectron spectroscopy. We found a reduction in heteroatoms and enlargement of the carbon region. The temperature-dependent resistance was well explained by the fluctuation-induced tunneling model, which also showed structural modification. The electrical conductivity of the fabricated e-yarns was comparable to that of pyroprotein-based e-textiles heat-treated at 1000 °C (order of 102 S/cm) and showed electrical stability under bending.

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Section: Resultsmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Commercial Silk-Based Electronic Yarns Fabricated Using Microwave Irradiation

Choi

Lee

et al. 2019

ACS Appl. Mater. Interfaces

Self Cite

View full text Add to dashboard Cite

show abstract

“…Flexible electronic components have been steadily developed in various fields, including electrically conducting textiles [1][2][3][4], thermoelectric textiles [5][6][7], solar cells [8], secondary batteries [9], and gas sensors [10][11][12]. Among them, flexible mechanical sensors (strain and pressure sensors) have been of interest because of their utility for sensing human body functions for healthcare, and for use in the Internet of Things (IoT).…”

Section: Introductionmentioning

confidence: 99%

Flexible Mechanical Sensors Fabricated with Graphene Oxide-Coated Commercial Silk

Jang,

Lee,

Kim

2024

Preprint

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Many studies on flexible strain and pressure sensors have been reported due to growing interest in wearable devices for healthcare. However, most are fabricated with multiple ingredients and complicated methods even though commercial textiles, such as cotton, nylon, polyester, and silk were used. Here we present flexible pressure and strain (motion) sensors prepared with only graphene oxide (GO) and commercial silk fabrics and yarns. The pressure sensors were fabricated by simply dipping the silk fabric into GO solution followed by thermal treatment at 400 °C for reduction of GO (rGO). The pressure sensors were made from rGO-coated fabrics, which were stacked in 3-, 5-, and 7-layers. The super-sensitivity of 2.58 ×103 kPa-1 at low pressure was observed in the 7-layer pressure sensor. The strain sensors were obtained from rGO-coated twisted silk yarns whose gauge factor was 0.307. Although this value is small or comparable to other sensors, it is appropriate for motion sensing. The results of this study show a cost-effective and simple method for the fabrication of pressure and motion sensors with commercial silk and GO.

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“…Flexible electronic components are steadily being developed for various applications, including electrically conductive textiles [ 1 , 2 , 3 , 4 ], thermoelectric textiles [ 5 , 6 , 7 ], solar cells [ 8 ], secondary batteries [ 9 ], and gas sensors [ 10 , 11 , 12 ]. Among them, flexible mechanical sensors (strain and pressure sensors) have been of interest because of their utility for sensing human body functions for healthcare purposes and for use in applications related to the Internet of Things (IoT).…”

Section: Introductionmentioning

confidence: 99%

Flexible Mechanical Sensors Fabricated with Graphene Oxide-Coated Commercial Silk

Jang,

Lee,

Kim

2024

Nanomaterials

Self Cite

View full text Add to dashboard Cite

Many studies on flexible strain and pressure sensors have been reported due to growing interest in wearable devices for healthcare purposes. Here, we present flexible pressure and strain (motion) sensors prepared with only graphene oxide (GO) and commercial silk fabrics and yarns. The pressure sensors were fabricated by simply dipping the silk fabric into GO solution followed by applying a thermal treatment at 400 °C to obtain reduced GO (rGO). The pressure sensors were made from rGO-coated fabrics, which were stacked in three, five, and seven layers. A super-sensitivity of 2.58 × 103 kPa−1 at low pressure was observed in the seven-layer pressure sensor. The strain sensors were obtained from rGO-coated twisted silk yarns whose gauge factor was 0.307. Although this value is small or comparable to the values for other sensors, it is appropriate for motion sensing. The results of this study show a cost-effective and simple method for the fabrication of pressure and motion sensors with commercial silk and GO.

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Pyroprotein-based electronic textiles with high thermal durability

Cited by 6 publications

References 37 publications

Commercial Silk-Based Electronic Yarns Fabricated Using Microwave Irradiation

Commercial Silk-Based Electronic Yarns Fabricated Using Microwave Irradiation

Flexible Mechanical Sensors Fabricated with Graphene Oxide-Coated Commercial Silk

Flexible Mechanical Sensors Fabricated with Graphene Oxide-Coated Commercial Silk

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