Morphological Study of Chitosan/Poly (Vinyl Alcohol) Nanofibers Prepared by Electrospinning, Collected on Reticulated Vitreous Carbon

Sanchez-Alvarado, Diana Isela; Guzmán‐Pantoja, Javier; Páramo-García, Ulises; Maciel-Cerda, Alfredo; Martínez-Orozco, Reinaldo David; Vera‐Graziano, Ricardo

doi:10.3390/ijms19061718

Cited by 29 publications

(11 citation statements)

References 18 publications

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“…Table 2 shows the mean diameter of undoped and N-doped TiO2/PVA nanofibers. According to Table II, size of both N-doped TiO2/PVA and undoped TiO2/PVA were in the range of 200 nm to 700 nm which is the optimum size that offering a large surface area for the membrane [29]. However, the mean diameter of both calcined N-doped TiO2/PVA and undoped TiO2/PVA were 304±43 nm and 672±19 nm respectively whereas these values decreased to 202±72 nm and 342±38 nm after calcination.…”

Section: Morphology Analysis Of Electrospun Undoped and N-doped Timentioning

confidence: 95%

Electrospun Nitrogen-doped TiO2 Nanofibrous Thin Film for Photovoltaic Application

Hussain*,

Bakar*,

Pei

et al. 2019

IJRTE

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This research study aims at fabrication of fine size nitrogen doped TiO2 nanofiber using electrospinning method and evaluation of the performance of TiO2 in a photovoltaic cell under visible light irradiation. Undoped and N doped TiO2 nanoparticles were synthesized by sol gel method where titanium isopropoxide was used as the source of TiO2 and ammonium nitrate was used as the source of N dopant. TiO2 /PVA composite material was prepared by stabilizing TiO2 particle in to 10 wt % of PVA (aq) solution in order to prepare thin film that can be coated on photovoltaic (PV) cells. Coating of solid thin film PV cells by TiO2 /PVA nanofibers was conducted using electrospinning and doctor blade method. In both systems, doping the TiO2 with nitrogen improved its optical properties which it successfully lowered the band gap energy from 3.14 to 2.76 eV and shifted its optical response to the visible light region. The presence of O-H stretching vibration, O-H bending and vibration of the N-Ti bond contributed to an increased performance of the PV cells. The electrospun N-doped TiO2 produced better power output than doctor blade method coated PV cells with power of 0.040 and 0.026 mW, respectively.

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Section: Morphology Analysis Of Electrospun Undoped and N-doped Timentioning

confidence: 95%

Electrospun Nitrogen-doped TiO2 Nanofibrous Thin Film for Photovoltaic Application

Hussain*,

Bakar*,

Pei

et al. 2019

IJRTE

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“…According to cell seeding results, the fibers with lower porosity showed better cell proliferation. Regarding the improvement of mechanical properties through the introduction of synthetic polymer into the system, a large number of works aimed at the fabrication of chitosan/PVA- [ 34 , 35 ] and chitosan/silk/PVA-based [ 66 ] electrospun materials for biomedical applications should be noted. Such materials possess high tensile stress values depending on the composition, and PVA-constituent enables the fiber formation from hybrid chitosan-containing solutions, which is a challenging task.…”

Section: Modern Polymer-based Fibrous Compositesmentioning

confidence: 99%

Fibrous Polymer-Based Composites Obtained by Electrospinning for Bone Tissue Engineering

2021

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Currently, the significantly developing fields of tissue engineering related to the fabrication of polymer-based materials that possess microenvironments suitable to provide cell attachment and promote cell differentiation and proliferation involve various materials and approaches. Biomimicking approach in tissue engineering is aimed at the development of a highly biocompatible and bioactive material that would most accurately imitate the structural features of the native extracellular matrix consisting of specially arranged fibrous constructions. For this reason, the present research is devoted to the discussion of promising fibrous materials for bone tissue regeneration obtained by electrospinning techniques. In this brief review, we focus on the recently presented natural and synthetic polymers, as well as their combinations with each other and with bioactive inorganic incorporations in order to form composite electrospun scaffolds. The application of several electrospinning techniques in relation to a number of polymers is touched upon. Additionally, the efficiency of nanofibrous composite materials intended for use in bone tissue engineering is discussed based on biological activity and physiochemical characteristics.

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“…For bio-composites formation, starch-based plastics, polyhydroxyalkanoates, cellulose esters, and poly(lactic acid) are the most popular biopolymers [48]. Bio-nanoparticles using chitosan are also increasingly used [49]. Anionic biodegradable polyvinyl alcohol (PVOH) was combined to electrospinning method to form chitosan fibers and ethanolic NaOH solution was used for chitosan fiber stabilization.…”

Section: Biopolymeric Nanoparticlesmentioning

confidence: 99%

Nanotechnology as a Processing and Packaging Tool to Improve Meat Quality and Safety

Lamri

Bhattacharya²,

Boukid

et al. 2021

Foods

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Nanoparticles are gaining momentum as a smart tool towards a safer, more cost-effective and sustainable food chain. This study aimed to provide an overview of the potential uses, preparation, properties, and applications of nanoparticles to process and preserve fresh meat and processed meat products. Nanoparticles can be used to reinforce the packaging material resulting in the improvement of sensory, functional, and nutritional aspects of meat and processed meat products. Further, these particles can be used in smart packaging as biosensors to extend the shelf-life of fresh and processed meat products and also to monitor the final quality of these products during the storage period. Nanoparticles are included in product formulation as carriers of health-beneficial and/or functional ingredients. They showed great efficiency in encapsulating bioactive ingredients and preserving their properties to ensure their functionality (e.g., antioxidant and antimicrobial) in meat products. As a result, nanoparticles can efficiently contribute to ensuring product safety and quality whilst reducing wastage and costs. Nevertheless, a wider implementation of nanotechnology in meat industry is highly related to its economic value, consumers’ acceptance, and the regulatory framework. Being a novel technology, concerns over the toxicity of nanoparticles are still controversial and therefore efficient analytical tools are deemed crucial for the identification and quantification of nanocomponents in meat products. Thus, migration studies about nanoparticles from the packaging into meat and meat products are still a concern as it has implications for human health associated with their toxicity. Moreover, focused economic evaluations for implementing nanoparticles in meat packaging are crucial since the current literature is still scarce and targeted studies are needed before further industrial applications.

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Morphological Study of Chitosan/Poly (Vinyl Alcohol) Nanofibers Prepared by Electrospinning, Collected on Reticulated Vitreous Carbon

Cited by 29 publications

References 18 publications

Electrospun Nitrogen-doped TiO2 Nanofibrous Thin Film for Photovoltaic Application

Electrospun Nitrogen-doped TiO2 Nanofibrous Thin Film for Photovoltaic Application

Fibrous Polymer-Based Composites Obtained by Electrospinning for Bone Tissue Engineering

Nanotechnology as a Processing and Packaging Tool to Improve Meat Quality and Safety

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