Facile production of natural silk nanofibers for electronic device applications

Wang, Qiusheng; Yan, Shuqin; Han, Guocong; Li, Xiufang; You, Renchuan; Zhang, Qiang; Li, Mingzhong; Kaplan, David L.

doi:10.1016/j.compscitech.2019.107950

Cited by 30 publications

(30 citation statements)

References 48 publications

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“…The XRD patterns of TSF nanofiber mats showed diffraction peaks around 16.8°(0.53 nm), 20.3°(0.44 nm), and 24.1°(0.37 nm) assigned to β-sheet structure, confirming the similar result to the FTIR analysis ( Fu et al, 2011 ). It is consistent with previous studies that the physical shearing breaks only the weak interfaces between nanofibers in silk but does not destroy the strong β-sheet crystal structure in nanofibers ( Okahisa et al, 2019 ; Wang et al, 2020a ; Narita et al, 2020 ). So, the secondary structure of silk fibroin can be well retained by this moderate approach.…”

Section: Resultssupporting

confidence: 93%

“…The breaking stress in the range of approximately 72 MPa represented the strongest silk nanofiber mats to date, possibly due to the preservation of hierarchical structure and the dense packing of TSF nanofibers as observed by SEM ( Figures 2 , 7 ). Although the breaking strain (the highest value is 8.2%) was low, the TSF nanofiber mats were flexible which was likely due to the nanofiber nature and nanofibrous structure ( Wang et al, 2020b ). Young’s modulus of TSF nanofiber mats increased with the increase of shearing time, and the highest value exceeded 3 GPa, which was close to that of silk film ( Zhang et al, 2015 ).…”

Section: Resultsmentioning

confidence: 99%

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Robust Nanofiber Mats Exfoliated From Tussah Silk for Potential Biomedical Applications

Chen

Qin

et al. 2021

Front. Bioeng. Biotechnol.

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Nanofibers as elements for bioscaffolds are pushing the development of tissue engineering. In this study, tussah silk was mechanically disintegrated into nanofibers dispersed in aqueous solution which was cast to generate tussah silk fibroin (TSF) nanofiber mats. The effect of treatment time on the morphology, structure, and mechanical properties of nanofiber mats was examined. SEM indicated decreasing diameter of the nanofiber with shearing time, and the diameter of the nanofiber was 139.7 nm after 30 min treatment. These nanofiber mats exhibited excellent mechanical properties; the breaking strength increased from 26.31 to 72.68 MPa with the decrease of fiber diameter from 196.5 to 139.7 nm. The particulate debris was observed on protease XIV degraded nanofiber mats, and the weight loss was greater than 10% after 30 days in vitro degradation. The cell compatibility experiment confirmed adhesion and spreading of NIH-3T3 cells and enhanced cell proliferation on TSF nanofiber mats compared to that on Bombyx mori silk nanofiber mats. In conclusion, results indicate that TSF nanofiber mats prepared in this study are mechanically robust, slow biodegradable, and biocompatible materials, and have promising application in regenerative medicine.

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Section: Resultssupporting

confidence: 93%

Section: Resultsmentioning

confidence: 99%

Robust Nanofiber Mats Exfoliated From Tussah Silk for Potential Biomedical Applications

Chen

Qin

et al. 2021

Front. Bioeng. Biotechnol.

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“…There are various type of accessible microstructures of carbon materials, such as graphite, carbon fiber, nanotube, amorphous powders, and diamond [67]. With the persist breakthrough of nanotech in materials science, carbon nanomaterials, especially carbon nanotubes (CNT) and carbon nanofiber (CNF), have gained considerable focus in electroanalysis [68], electronic [69,70], optics [70], polymer composite [71], catalyst [72][73][74], and other related fields. In 2014, researcher Zhai Zhao Yang's team described the using graphene as solid support in synthesis the catalyst and applied in O-arylation Ullmann cross-coupling reaction.…”

Section: Scheme 14 Maghemite-copper Oxide Nanoparticles Catalyzed Symentioning

confidence: 99%

“…Catalysts 2020, 10, x FOR PEER REVIEW 19 of 51 nanotubes (CNT) and carbon nanofiber (CNF), have gained considerable focus in electroanalysis [68], electronic [69,70], optics [70], polymer composite [71], catalyst [72][73][74], and other related fields.…”

Section: Scheme 14 Maghemite-copper Oxide Nanoparticles Catalyzed Symentioning

confidence: 99%

Recent Advancement of Ullmann Condensation Coupling Reaction in the Formation of Aryl-Oxygen (C-O) Bonding by Copper-Mediated Catalyst

et al. 2020

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Transition metal-catalyzed chemical transformation of organic electrophiles and organometallic reagents belong to the most important cross coupling reaction in organic synthesis. The biaryl ether division is not only popular in natural products and synthetic pharmaceuticals but also widely found in many pesticides, polymers, and ligands. Copper catalyst has received great attention owing to the low toxicity and low cost. However, traditional Ullmann-type couplings suffer from limited substrate scopes and harsh reaction conditions. The introduction of homogeneous copper catalyst with presence of bidentate ligands over the past two decades has totally changed this situation as these ligands enable the reaction promoted in mild condition. The reaction scope has also been greatly expanded, rendering this copper-based cross-coupling attractive for both academia and industry. In this review, we will highlight the latest progress in the development of useful homogeneous copper catalyst with presence of ligand and heterogeneous copper catalyst in Ullmann type C-O cross-coupling reaction. Additionally, the application of Ullmann type C-O cross coupling reaction will be discussed.

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“…Despite this variety of available microstructures, the poor electrical properties of silk fibroin (SF) represents an important drawback to be circumvented in the development of e-textiles. The adequate modification of silk fibroin with additives such as conducting polymers [13][14][15][16], metal oxide and metal nanoparticles results in a reasonable level of conductivity for fibers while preserves the mechanical properties, that have been reinforced (impact/compression properties) by preparation of composites with epoxy [17][18][19] and by incorporation of graphene derivatives [20][21][22][23] for the following step of reduction of graphene oxide(GO), reinforcing properties such as anti-ultraviolet and water repellent activity. With these modifications in the intrinsic properties of the silk fibers, electroactive smart textile-based on silk fibroin can be considered as good templates for applications involving the shielding of electromagnetic radiation, dissipation of microwave energy, heat generation, etc.…”

Section: Introductionmentioning

confidence: 99%

The State of the Art of Energy Harvesting and Storage in Silk Fibroin-Based Wearable and Implantable Devices

Lima¹,

Oliveira²

2020

Electrochem

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The energy autonomy of self-powered wearable electronics depends on the adequate development of new technologies for energy harvesting and energy storage devices based on textile fibers to facilitate the integration with truly flexible and wearable devices. Silk fiber-based systems are attractive for the design of biomedical devices, lithium-ion batteries and flexible supercapacitors, due to their nitrogen-rich structure (for preparation of hierarchical carbon-based structures), and available surface for chemical modification reinforcing electroactive properties for use in batteries and supercapacitors. Herein, this paper reviews recent advances on silk fiber-based systems for harvesting and the storage of energy and the corresponding strategies to reinforce the physical and chemical properties of the resulting composites applied as electrodes and battery separators.

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Facile production of natural silk nanofibers for electronic device applications

Cited by 30 publications

References 48 publications

Robust Nanofiber Mats Exfoliated From Tussah Silk for Potential Biomedical Applications

Robust Nanofiber Mats Exfoliated From Tussah Silk for Potential Biomedical Applications

Recent Advancement of Ullmann Condensation Coupling Reaction in the Formation of Aryl-Oxygen (C-O) Bonding by Copper-Mediated Catalyst

The State of the Art of Energy Harvesting and Storage in Silk Fibroin-Based Wearable and Implantable Devices

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