Alginic acid/graphene oxide hydrogel film coated functional cotton fabric for controlled release of matrine and oxymatrine

Gan, Lu; Xu, Lijie; Pan, Zhepeng; Jiang, Fuyuan; Shang, Songmin

doi:10.1039/c6ra15543j

Cited by 11 publications

(5 citation statements)

References 30 publications

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“…In the spinning process of PI hydrogel fibers, the key factor that affects the sol–gel transition process of the PI salt is the coagulation bath, which controls the gelation time and the degree of cross-linking, thus largely relating to the mechanical properties and micromorphologies of the as-prepared hydrogel fibers. Calcium ions (Ca 2+ ) usually function as ionic complexation cross-linkers, and solutions containing Ca 2+ commonly serve as coagulants in the preparation of hydrogels, such as graphene, , alginic acid, and polyacrylic acid . Therefore, CaCl 2 was added to the coagulation bath for the fabrication of PI hydrogel fibers.…”

Section: Results and Discussionmentioning

confidence: 99%

Wearable and Robust Polyimide Hydrogel Fiber Textiles for Strain Sensors

Chen

et al. 2021

ACS Appl. Mater. Interfaces

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Conductive ionic hydrogel fibers and textiles with excellent mechanical properties and chemical stability are requested for flexible and wearable electronic devices, strain sensors, and even artificial skin. However, most of the reported hydrogel fibers are not suitable in complex environments, especially in alkaline solutions and organic solvents due to their poor chemical stability. Herein, we report ionic polyimide hydrogel fibers derived from an organosoluble polyimide salt that can be continuously and rapidly prepared via a facile wet spinning method. Thanks to their ion-rich property and robust skeletal structure, the obtained ionic polyimide hydrogel fibers showed an excellent conductivity of ∼21 mS/cm and outstanding mechanical properties with a tensile strength of 2.5 MPa and breaking elongation of 215%. Furthermore, the as-prepared fibers could be easily woven to form integral textiles, endowing them with good wearable properties. Accordingly, facile strain sensors assembled by polyimide hydrogel fibers show a linear response with high sensitivity and good cycling stability, which have great potential for applications in wearable and flexible strain sensors under diverse complex environments.

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Section: Results and Discussionmentioning

confidence: 99%

Wearable and Robust Polyimide Hydrogel Fiber Textiles for Strain Sensors

Chen

et al. 2021

ACS Appl. Mater. Interfaces

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“…Cotton cellulose coated with graphene Dip-pad-dry 91.8 kΩ/sq [39] Cotton fabric (SCF)/graphene oxide (rGO) Dip coated 40 Ω/sq [40] Graphene oxide (RGO)-coated-copper (Cu)/silver (Ag) nanoparticle-incorporated cotton fabrics Dip-coating approach 16.70 KΩ/sq [41] Graphene oxide/cotton/sodium dithionite (Na 2 S 2 O 4 ) Dipping method ±0.92 kΩ sq −1 [42] Knitted cotton fabrics/GO/sodium nitrate/H 2 SO 4 and KMnO 4 . Dipping method 0.19 MΩ/sq [43] rGO/ZnO-coated cotton Simple spraying and drying process 8.4 10 −2 S/cm [44] Graphene/cotton fabric (HC-GCF) Coating method 7 Ω sq −1 [45] Graphene Oxide/Silver Nanoparticles/Cotton Fabric Dip-coating ~10 −13 S cm −1 [46] Graphene nanoribbon/cotton fabric Wet coating approach ~80 Ω [47] Graphene oxide (GO) nanosheets\cotton fabric Dip and dry method 10 15 Ω/sq [48] Graphene/pure cotton fabric Dip-coating 0.0901 Ω~0.644 Ω/sq Present work…”

Section: Methods Electrical Resistivity Referencesmentioning

confidence: 99%

Design and Characterization of Electroconductive Graphene-Coated Cotton Fabric for Wearable Electronics

Badawi,

Batoo,

Hussain

et al. 2023

Coatings

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Efficient energy storage is becoming a serious niche area nowadays due to exponential growth in energy consumption. Different approaches have been developed and implemented to improve the performance of the devices, in which improving conductivity is a major issue. In the present work, cotton fabric was converted into a conductive material by incorporating graphene, using the Layer-by-Layer (LBL) method, followed by heating at 100 °C. The electrical conductivity of the cotton using different concentrations of graphene was studied. The graphene-coated cotton, at the 17th layer, with a concentration of 168.36 wt.% resulted in a surface resistance of 0.644 Ω/sq and retained the maximum resistance even after two months. Scanning electron microscopy (SEM) and Energy-dispersive X-ray spectroscopy analysis (EDX) were employed to comprehend the surface morphology and elemental compositions. Fourier transform infrared (FTIR) spectroscopy, UV-vis absorption, and X-ray diffraction (XRD) were used to determine the structural analysis, which revealed a good dispersion of graphene in the cotton samples obtained through dimethyl sulfoxide (DMSO) doping, which reduced the ripple of the cotton. The cotton fabric treated with graphene was thermally stable, as shown through thermal analysis. From the results obtained, it is evident that graphene-treated cotton fabric materials show tremendous potential for use in smart textiles and also as protective clothing.

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“…Gan et al . functionalized cotton fabrics using alginic acid/graphene oxide hydrogel layers to host matrine and oxymatrine simultaneously . Wu et al .…”

Section: Introductionmentioning

confidence: 99%

“…8 Gan et al functionalized cotton fabrics using alginic acid/graphene oxide hydrogel layers to host matrine and oxymatrine simultaneously. 9 Wu et al loaded diclofenac sodium in alginate/CaCO3 microparticles and uniformly deposited microparticle on the surface of a cotton fabric. 10 Shimanovich et al encapsulated tetracycline in microspheres and attached those to cotton and polyester fabrics using sonochemical radiation.…”

Section: Introductionmentioning

confidence: 99%

Manipulating drug release from tridimensional porous substrates coated by initiated chemical vapor deposition

Ghasemi‐Mobarakeh

Werzer

Keimel

et al. 2019

J of Applied Polymer Sci

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In the recent years, modern wound dressings have attracted much interest to accelerate wound healing processes with the topical delivery of drugs directly on wounds having a significant effect on wound rehabilitation. The objective of this study was to develop a model dressing that would not only provide wound protection from the environment but might also provide the possibility to keep it moist and deliver a drug for potential speeding the healing process. Poly(ethylene terephthalate), cotton fabrics, and polycaprolactone (PCL) nanofibers were used as different tridimensional porous substrates, loaded with a model drug, clotrimazole. The results show that the chemical structure and surface area to volume ratio of the pristine substrates affect the drug release profile. Coating of such substrates by hydrogels poly(2‐hydroxyethyl methacrylate) (p‐HEMA) and poly(methacrylic acid) (p‐MAA) was successfully achieved by initiated chemical vapor deposition. This method was chosen because it is gentle and solventless and most important it can coat free areas within the three‐dimensional structures. Scanning electron microscopy results revealed that p‐HEMA and p‐MAA conformally coated the fibers of the substrates. Moreover, drug release experiments showed that p‐HEMA and p‐MAA coatings provide barriers preventing sudden drug release. In conclusion, our results indicated the possibility of fabricating dressings containing a drug with tunable drug release profile depending on several parameters even though a strong porous structure exists. © 2019 The Authors. Journal of Applied Polymer Science published by Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 47858.

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Alginic acid/graphene oxide hydrogel film coated functional cotton fabric for controlled release of matrine and oxymatrine

Abstract: The present study describes the fabrication of a functional cotton fabric and investigated the drug release capability of the functional cotton fabric.

Cited by 11 publications

References 30 publications

Wearable and Robust Polyimide Hydrogel Fiber Textiles for Strain Sensors

Wearable and Robust Polyimide Hydrogel Fiber Textiles for Strain Sensors

Design and Characterization of Electroconductive Graphene-Coated Cotton Fabric for Wearable Electronics

Manipulating drug release from tridimensional porous substrates coated by initiated chemical vapor deposition

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