Electromechanical response of silk fibroin hydrogel and conductive polycarbazole/silk fibroin hydrogel composites as actuator material

Srisawasdi, Thanida; Petcharoen, Karat; Sirivat, Anuvat; Jamieson, A. M.

doi:10.1016/j.msec.2015.06.005

Cited by 34 publications

(27 citation statements)

References 39 publications

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“…The electro-responsive silk fibroin hydrogels mostly exhibit single-factor responses. In a related study, Thanida Srisawasdi et al 93 synthesized polycarbazole (PCZ) through oxidative polymerization and cross-linked with SF to form the SF/PCZ electric field intensity responsive hydrogels. The relative dielectric permittivity values increased with frequency due to the ionic polarization, thus, indicating responsiveness.…”

Section: Environmental Stimuli Responsivenessmentioning

confidence: 99%

Functional silk fibroin hydrogels: preparation, properties and applications

2021

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Section: Environmental Stimuli Responsivenessmentioning

confidence: 99%

Functional silk fibroin hydrogels: preparation, properties and applications

2021

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“…), [ 12,17–20 ] and a variety of stimuli‐responsive silk‐based materials have been reported. [ 21–28 ]…”

Section: Figurementioning

confidence: 99%

Electroactive Silk Fibroin Films for Electrochemically Enhanced Delivery of Drugs

Mousavi

Harper

Municoy

et al. 2020

Macro Materials & Eng

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Biomaterials capable of controlling the delivery of drugs have the potential to treat a variety of conditions. Herein, the preparation of electrically conductive silk fibroin film‐based drug delivery devices is described. Casting aqueous solutions of Bombyx mori silk fibroin, followed by drying and annealing to impart β‐sheets to the silk fibroin, assure that the materials are stable for further processing in water; and the silk fibroin films are rendered conductive by generating an interpenetrating network of a copolymer of pyrrole and 3‐amino‐4‐hydroxybenzenesulfonic acid in the silk fibroin matrix (characterized by a variety of techniques including circular dichroism, Fourier‐transform infrared spectroscopy, nuclear magnetic resonance, Raman spectroscopy, resistance measurements, scanning electron microscopy‐energy dispersive X‐ray spectroscopy, thermogravimetric analysis, X‐ray diffraction, and X‐ray photoelectron spectroscopy). Fibroblasts adhere on the surface of the biomaterials (viability assessed using an (3‐(4,5‐dimethylthiazol‐2‐yl)‐2,5‐diphenyltetrazolium bromide) assay and visualized using a confocal microscope), and a fluorescently labeled drug (Texas‐Red Gentamicin) can be loaded electrochemically and released (µg cm−2 quantities) in response to the application of an electrical stimulus.

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“…However, the storage modulus response and sensitivity decreased with nanowire-Ppy concentration greater than 0.1%v/v. Srisawasdi et al 2 reported that maximum storage modulus sensitivity of 1.20 occurred with the SF/PCZ (0.05%v/v PCZ) hydrogel. 2 For the Pectin hydrogel blend with 0.1%v/v P2ClAn in the present work, it possesses the higher sensitivity value of 14.01, a value higher than other materials.…”

Section: Scanning Electron Microscopementioning

confidence: 99%

“…Examples of ionic EAPs are gels, conductive polymers, and carbon nanotubes. 1 Srisawasdi et al 2 fabricated a pure silk fibroin (SF) hydrogel by a solvent casting technique to evaluate electromechanical properties under electric field. The SF hydrogel possessed the highest storage modulus sensitivity value of 5.87.…”

Section: Introductionmentioning

confidence: 99%

Soft poly(2-chloroaniline)/pectin hydrogel and its electromechanical properties

et al. 2017

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Pectin hydrogels were successfully fabricated with various physical crosslinkers and concentrations for soft actuator applications. A small amount of synthesized P2ClAn was added as a dispersed phase into the pectin matrix. The electromechanical properties of the pectin hydrogels and blends were investigated under the effects of electric field strength, ionic crosslinker type and concentration, and P2ClAn concentration. The electromechanical properties of the pectin hydrogel as crosslinked by Fe were superior to other pectin hydrogels. The pristine pectin hydrogel and the P2ClAn/Pectin hydrogel blended with 0.10%v/v P2ClAn provided the high storage modulus sensitivity values of 8.61 and 14.01, respectively, under the electric field strength of 800 V/mm. The P2ClAn/Pectin hydrogel blend responded to the electric field with higher dielectrophoretic forces, but lower deflections relative to the pristine pectin hydrogel due to the additional P2ClAn polarization and the latter lower rigidity.

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Electromechanical response of silk fibroin hydrogel and conductive polycarbazole/silk fibroin hydrogel composites as actuator material

Cited by 34 publications

References 39 publications

Functional silk fibroin hydrogels: preparation, properties and applications

Functional silk fibroin hydrogels: preparation, properties and applications

Electroactive Silk Fibroin Films for Electrochemically Enhanced Delivery of Drugs

Soft poly(2-chloroaniline)/pectin hydrogel and its electromechanical properties

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