Enhanced electromechanical performance of bio-based gelatin/glycerin dielectric elastomer by cellulose nanocrystals

Ning, Nanying; Wang, Zhifei; Yao, Yang; Zhang, Liqun; Tian, Ming

doi:10.1016/j.carbpol.2015.03.083

Cited by 30 publications

(18 citation statements)

References 31 publications

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“…Cellulose derivatives, such as CMC and MC, ethyl cellulose, acetyl cellulose, and hydroxypropyl cellulose have frequently been used to formulate hydrogels, nanoparticles (e.g., nanowhiskers), and nanofibers . Moreover, in combination with other synthetic and natural polymers, such as proteins, in particular gelatin, a wide range of applications have been demonstrated for these composite materials as scaffolds for 3D cellular engineering . Glycosaminoglycans (GAGs) in the ECM may be mimicked by electrospinning partially sulfated cellulose with gelatin, yielding functional fibrous structures.…”

Section: Gelatin–polysaccharides Composites In Cell Culture and Tissumentioning

confidence: 99%

Gelatin‐polysaccharide composite scaffolds for 3D cell culture and tissue engineering: Towards natural therapeutics

Afewerki

Sheikhi

Kannan

et al. 2018

Bioengineering & Transla Med

309

210

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Gelatin is a promising material as scaffold with therapeutic and regenerative characteristics due to its chemical similarities to the extracellular matrix (ECM) in the native tissues, biocompatibility, biodegradability, low antigenicity, cost‐effectiveness, abundance, and accessible functional groups that allow facile chemical modifications with other biomaterials or biomolecules. Despite the advantages of gelatin, poor mechanical properties, sensitivity to enzymatic degradation, high viscosity, and reduced solubility in concentrated aqueous media have limited its applications and encouraged the development of gelatin‐based composite hydrogels. The drawbacks of gelatin may be surmounted by synergistically combining it with a wide range of polysaccharides. The addition of polysaccharides to gelatin is advantageous in mimicking the ECM, which largely contains proteoglycans or glycoproteins. Moreover, gelatin–polysaccharide biomaterials benefit from mechanical resilience, high stability, low thermal expansion, improved hydrophilicity, biocompatibility, antimicrobial and anti‐inflammatory properties, and wound healing potential. Here, we discuss how combining gelatin and polysaccharides provides a promising approach for developing superior therapeutic biomaterials. We review gelatin–polysaccharides scaffolds and their applications in cell culture and tissue engineering, providing an outlook for the future of this family of biomaterials as advanced natural therapeutics.

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Section: Gelatin–polysaccharides Composites In Cell Culture and Tissumentioning

confidence: 99%

Gelatin‐polysaccharide composite scaffolds for 3D cell culture and tissue engineering: Towards natural therapeutics

Afewerki

Sheikhi

Kannan

et al. 2018

Bioengineering & Transla Med

309

210

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“…For the past few years, the preparation of cellulose nanocrystals (CNCs) and their application in composite materials have gained increasing attention because of their inherent properties like outstanding mechanical properties (elastic modulus of 130-150 GPa) (Iwamoto et al 2009), high specific surface area (up to several hundreds of m 2 /g) (Ng et al 2015), high length-to-width ratio (up to several hundreds) (Jonoobi et al 2015) combined with low density (1.6 g/cm 3 ) (Moon et al 2011), low thermal expansion (0.1 ppm K -1 ) (Song et al 2013), biodegradability and renewability. Due to their special intrinsic nanostructure and excellent properties, CNCs have wide application potential in nanomaterials, such as aerogels (Mueller et al 2015;yang et al 2015), biomedical materials (Domingues et al 2014;Dugan et al 2013;Jorfi and Foster 2015;Plackett et al 2014), packaging materials (Fortunati et al 2012;Li et al 2013b;Mihindukulasuriya and Lim 2014), optical (Biyani et al 2013;Schlesinger et al 2015) or electroconductive (Lyubimova et al 2015;Ning et al 2015;Shi et al 2013;Tang et al 2014) materials, and several mechanically reinforced nanocomposites (de Castro et al 2015;Habibi 2014;Jonoobi et al 2015;Ng et al 2015;Sapkota et al 2015;Therien-Aubin et al 2015;Yang et al 2014).…”

Section: Introductionmentioning

confidence: 99%

Preparation and characterization of thermally stable cellulose nanocrystals via a sustainable approach of FeCl3-catalyzed formic acid hydrolysis

Liu

et al. 2016

Cellulose

158

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Cellulose nanocrystals (CNCs) can be used as building blocks for the production of many renewable and sustainable nanomaterials. In this work, CNCs were produced from bleached eucalyptus kraft pulp with a high yield over 75 % via FeCl 3 -catalyzed formic acid (FA) hydrolysis process. It was found that the particle size of resultant CNC products (F-CNC) decreased with the increase of FeCl 3 dosage in FA hydrolysis, and a maximum crystallinity index of about 75 % could be achieved when the dose of FeCl 3 was 0.015 M (i.e. about 7 % based on the weight of starting material). Thermogravimetric analyses revealed that F-CNC exhibited a much higher thermal stability (the decomposition temperature was over 260°C) than S-CNC prepared by typical sulfuric acid hydrolysis. In the FeCl 3 -catalyzed FA hydrolysis process, FA could be easily recovered and reused, and FeCl 3 could be transferred to Fe(OH) 3 as a high value-added product. Thus, the FeCl 3 -catalyzed FA hydrolysis process could be sustainable and economically feasible. In addition, F-CNC could be well dispersed in DMSO and its dispersibility in water could be improved by a cationic surface modification.

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“…However, the presence of hydrogen bonds limits the mobility of these groups. To disrupt these bonds, it is necessary to improve the sensitivity, indicating possible blend with other molecules [17]. …”

Section: Resultsmentioning

confidence: 99%

“…Besides, it is a material that is generally recognized as safe (GRAS), a necessary feature for food industry, and has high mechanical strength and characteristic of a stabilizing agent [15,16]. The chemical composition has a large number of polar functional groups that are beneficial to the polarization under an electric field [17]. As a hydrogel, it is able to absorb large amounts of water without not dissolving because of chemical or physical crosslinks and/or chain entanglements.…”

Section: Introductionmentioning

confidence: 99%

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Feasibility of a Gelatin Temperature Sensor Based on Electrical Capacitance

Silva

Sorli

Calado

et al. 2016

Sensors

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The innovative use of gelatin as a temperature sensor based on capacitance was studied at a temperature range normally used for meat cooking (20–80 °C). Interdigital electrodes coated by gelatin solution and two sensors of different thicknesses (38 and 125 µm) were studied between 300 MHz and 900 MHz. At 38 µm, the capacitance was adequately measured, but for 125 µm the slope capacitance versus temperature curve decreased before 900 MHz due to the electrothermal breakdown between 60 °C and 80 °C. Thus, for 125 µm, the capacitance was studied applying 600 MHz. Sensitivity at 38 µm at 868 MHz (0.045 pF/°C) was lower than 125 µm at 600 MHz (0.14 pF/°C), influencing the results in the simulation (temperature range versus time) of meat cooking; at 125 µm, the sensitivity was greater, mainly during chilling steps. The potential of gelatin as a temperature sensor was demonstrated, and a balance between thickness and frequency should be considered to increase the sensitivity.

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Enhanced electromechanical performance of bio-based gelatin/glycerin dielectric elastomer by cellulose nanocrystals

Cited by 30 publications

References 31 publications

Gelatin‐polysaccharide composite scaffolds for 3D cell culture and tissue engineering: Towards natural therapeutics

Gelatin‐polysaccharide composite scaffolds for 3D cell culture and tissue engineering: Towards natural therapeutics

Preparation and characterization of thermally stable cellulose nanocrystals via a sustainable approach of FeCl3-catalyzed formic acid hydrolysis

Feasibility of a Gelatin Temperature Sensor Based on Electrical Capacitance

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