Material selection in electrospinning microparticles

Ewaldz, Elena; Patel, Riddhi P.; Banerjee, Manali; Brettmann, Blair

doi:10.1016/j.polymer.2018.08.015

Cited by 24 publications

(12 citation statements)

References 30 publications

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“…3 Fibers are critical for scaffold production in tissue engineering, and some polymers are not obtainable in fibers, either due to their low viscosity or reduced chain size or degradation during the processing. 8,9 Among several methods for producing scaffolds with a fibrous architecture, electrospinning has attracted considerable attention because it can make fibers with a small pore size and high specific surface area. 10 The electrospinning process needs four basic components: a syringe containing polymer solution, a metallic needle, a highvoltage source, and a metallic collector.…”

Section: Introductionmentioning

confidence: 99%

Electrospun natural rubber latex biocomposite for scaffolds in tissue engineering

Carazzai

Guerra

Henckes

et al. 2021

Journal of Bioactive and Compatible Polymers

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Fibrous scaffold along with seed cells are essential players for engineered tissue regeneration. Recently, PLGA/epoxidized poly(isoprene) dense membranes have been evaluated for cell growth and have shown satisfactory results. However, porous and fibrous structures suitable for obtaining 3D supports have not yet been evaluated for the PLGA/epoxidized poly(isoprene). The present work aimed to establish the electrospinning conditions for obtaining electrospun membranes with a smaller diameter of fibers and adequate morphology, which were characterized in vitro by their physical, chemical and biological properties. The best electrospun fibers were obtained from the following conditions: an applied voltage of 15 kV, a needle-collector distance of 20 cm and, a flow rate of 5 mL/h. The functional groups of the polymers involved in the blend did not show any changes. The mechanical properties of the electrospun membranes are within the lower limits known to human skin and some soft tissues. The in vitro degradation test showed a loss of mass of approximately 20% in 28 days. Significant adhesion and proliferation of human adipose–derived mesenchymal stem cells were demonstrated, indicating that there was cellular penetration into the scaffold and proliferation. Therefore, the preliminary results suggest that the electrospun PLGA/epoxidized poly(isoprene) membranes have high potential for application as a 3D tissue engineering scaffold.

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Section: Introductionmentioning

confidence: 99%

Electrospun natural rubber latex biocomposite for scaffolds in tissue engineering

Carazzai

Guerra

Henckes

et al. 2021

Journal of Bioactive and Compatible Polymers

View full text Add to dashboard Cite

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“…On the other hand, this can be attracted to suspensions spinning as was studied by Brettmann et al 2012, 55 where they managed to spinning microparticles with different diameters using monolithic electrospinning. For this reason, it can be said that the concentration of 10 wt% for both pigments was high in pigments in the polymeric solution that created an unsaturated and unstable solution, generating fibers with a wide variety of diameters as well as agglomerations of microparticles that were placed between the electrospun fibers as described by Ewaldz et al 2018 56 …”

Section: Resultsmentioning

confidence: 99%

Thermochromic and/or photochromic properties of electrospun cellulose acetate microfibers for application as sensors in smart packing

Mancipe

Nista

Caballero

et al. 2020

J of Applied Polymer Sci

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There is growing demand for smart materials whose chemical structure, shape, and/or color, among other properties could be modified for use in applied packaging in the food industry, pharmacy, textiles, and so forth. These variations results from external stimuli, whether chemical, physical, and/or environmental (humidity, heat, light, and so forth), which has created promising materials for use in various areas of engineering, such as the production of ultrasensitive sensors with the capacity that the said variations are perceptible to the naked eye. The production of nanostructured sensor membranes obtained by electrospinning is one interesting alternative that has been attracting the attention of researchers in recent years. However, many studies related to the application of photosensors supported in electrospun cellulose acetate (CA) have not been found in the literature. Among the most used materials in electrospinning, CA stands out due to its wide availability and low cost that reflects in several applications. Two commercial sensitive pigments were used, a thermosensitive and a photosensitive one, in concentrations between 0 and 10% (m/v), to evaluate the best amount in the nanosensors they could be seen through naked eye. Variation on the fibers morphology was characterized by scanning electron microscopy. The stability and thermal transitions were evaluated using thermogravimetric analysis/differential thermogravimetric analysis and differential scanning calorimetry. The composition of chemical fibers was studied using FTIR-ATR. Finally, the thermal and/or UV light response was performed by qualitative test.

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“…When electrostatic forces overcome from the surface tension of a droplet, the polymeric solution from syringe moves in the direction of electric field toward the grounded plate, as shown in Figure a. While moving of polymeric solution in the shape of the jet from syringe needle toward the grounded plane due to the applied voltage, the jet becomes thin and dried which results in nanoscale to microscale fibers . The electrospinning parameters have a great influence on the conversion of polymeric solution into nanofibers and further nanofiber into mats/separators.…”

Section: Separator Preparation Methodologiesmentioning

confidence: 99%

Recent Development in Separators for High‐Temperature Lithium‐Ion Batteries

Waqas

Ali

Feng

et al. 2019

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metric tons of carbon dioxide (CO 2 ) and other pollutants per year, which accelerate global warming and major climate changes. [2] In order to mitigate these serious issues caused by fossil fuels and to compete with the energy generating devices based on fossil fuels, renewable energy sources like solar energy, wind energy, bioenergy, and geothermal energy are potential alternative power resources. However, these renewable energy resources need highly efficient energy storage devices for integrating and well distribution of energy. Rechargeable battery technology with high energy, high power density, long life cycle capability, fast cycling rate, and reasonable cost is the possible solution to store energy obtained from these renewable sources. [3] Among many rechargeable energy storage devices, lithium-ion batteries (LIBs) are the promising energy sources for integrating renewable resources and high power applications, owing to high energy density, lightweight, high flexibility, slow self-discharge rate, high rate charging capability, long battery life, and environmental benignity. [4,5] The aforementioned attractive properties of rechargeable LIBs promote its utilization in the wide range of applications like laptops, cell phones, electric vehicle, hybrid electric vehicles, renewable power stations, stationary electric power, defense arsenal, subsurface exploration, thermal reactors, and space vehicles. [6][7][8][9] From the last 30 years, rapid development has been observed in LIBs technology. Presently, LIBs hold twofold energy density as compared to the first commercial LIBs developed by Sony in 1991, but still, there are some challenges associated with LIBs that need to be solved for achieving high power density and efficient performances at high and low temperatures. Safety, cost, and enhancement in energy and power densities are the major concerns in next generation LIBs. [10][11][12] Separator is one of the important components of LIBs that is not directly involved in the electrochemical reaction, however, its properties, structure, and composition greatly influence the performance of batteries with respect to internal resistance, long cycle performances, high capacity, and safety. [13] The basic functions of the separator are to prevent the contact between anode and cathode to avoid internal short circuits, store liquid electrolyte, and permit the migration of ions during the chargedischarge process. [14][15][16] The ideal separator should possess Lithium-ion batteries (LIBs) are promising energy storage devices for integrating renewable resources and high power applications, owing to their high energy density, light weight, high flexibility, slow self-discharge rate, high rate charging capability, and long battery life. LIBs work efficiently at ambient temperatures, however, at high-temperatures, they cause serious issues due to the thermal fluctuation inside batteries during operation. The separator is a key component of batteries and is crucial for the sustainability of LIBs at high-temperatures. Th...

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Material selection in electrospinning microparticles

Cited by 24 publications

References 30 publications

Electrospun natural rubber latex biocomposite for scaffolds in tissue engineering

Electrospun natural rubber latex biocomposite for scaffolds in tissue engineering

Thermochromic and/or photochromic properties of electrospun cellulose acetate microfibers for application as sensors in smart packing

Recent Development in Separators for High‐Temperature Lithium‐Ion Batteries

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