Nanofibers based on polysaccharides from the green seaweed Ulva Rigida

Toskas, Georgios; Hund, Rolf-Dieter; Laourine, Ezzedine; Cherif, Chokri; Smyrniotopoulos, Vangelis; Roussis, Vassilios

doi:10.1016/j.carbpol.2010.12.075

Cited by 120 publications

(92 citation statements)

References 62 publications

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“…Nanofibers produced by electrospinning can be further supplemented with a variety of nanoparticles in order to fabricate composites with unique, tailor-made properties for different applications [14]. The "spinnability" and mechanical integrity of natural polymers, such as chitin, chitosan, GK, or ulvan polysaccharide, can be improved by blending with synthetic biodegradable polymers such as polyvinyl alcohol (PVA), polyethylene oxide (PEO), and polyvinylpyrrolidone (PVP) [15][16][17][18]. The nature and morphology of the nanofibers produced will be affected by many factors, including the physicochemical properties of the polymer and various parameters of the electrospinning process, including solution viscosity and mixture conductivity [19].…”

Section: Journal Of Nanomaterialsmentioning

confidence: 99%

Fabrication, Characterization, and Antibacterial Properties of Electrospun Membrane Composed of Gum Karaya, Polyvinyl Alcohol, and Silver Nanoparticles

Padil

Nguyen

Ševců

et al. 2015

Journal of Nanomaterials

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Gum karaya (GK), a natural hydrocolloid, was mixed with polyvinyl alcohol (PVA) at different weight ratios and electrospun to produce PVA/GK nanofibers. An 80 : 20 PVA/GK ratio produced the most suitable nanofiber for further testing. Silver nanoparticles (Ag-NPs) were synthesised through chemical reduction of AgNO 3 (at different concentrations) in the PVA/GK solution, the GK hydroxyl groups being oxidised to carbonyl groups, and Ag + cations reduced to metallic Ag-NPs. These PVA/GK/Ag solutions were then electrospun to produce nanofiber membranes containing Ag-NPs (Ag-MEMs). Membrane morphology and other characteristics were analysed using scanning electron microscopy coupled with energy dispersive X-ray analysis, transmission electron microscopy, and UV-Vis and ATR-FTIR spectroscopy. The antibacterial activity of the Ag-NP solution and Ag-MEM was then investigated against Gram-negative Escherichia coli and Pseudomonas aeruginosa and Gram-positive Staphylococcus aureus. Our results show that electrospun nanofiber membranes based on natural hydrocolloid, synthetic polymer, and Ag-NPs have many potential uses in medical applications, food packaging, and water treatment.

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Section: Journal Of Nanomaterialsmentioning

confidence: 99%

Fabrication, Characterization, and Antibacterial Properties of Electrospun Membrane Composed of Gum Karaya, Polyvinyl Alcohol, and Silver Nanoparticles

Padil

Nguyen

Ševců

et al. 2015

Journal of Nanomaterials

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“…Natural biopolymers such as Chiton, chitosan, gum tragacanth, and guar gum blended with synthetic biocompatible polymers (PVA or PEO) have been reported to be suitable for producing electrospun membranes [145][146][147][148][149][150]. Very recently, natural tree polymers such as GA, GK, and KG have undergone electrospinning and the system and process parameters have been standardised to produce smooth and uniform nanofibres [151][152][153][154][155].…”

Section: "Green" Electrospinning Based On Tree Gumsmentioning

confidence: 99%

Green Synthesis: Nanoparticles and Nanofibres Based on Tree Gums for Environmental Applications

Padil

Černík

2016

Ecological Chemistry and Engineering S

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Abstract:The recent advances and potential applications of nanoparticles and nanofibres for energy, water, food, biotechnology, the environment, and medicine have immensely conversed. The present review describes a 'green' method for the synthesis and stabilization of nanoparticles and 'green electrospinning' both using tree gums (arabic, tragacanth, karaya and kondagogu). Furthermore, this review focuses on the impending applications of both gum stabilized nanoparticles and functionalized membranes in remediation of toxic metals, radioactive effluents, and the adsorptive removal of nanoparticulates from aqueous environments as well as from industrial effluents. Besides, the antibacterial properties of gum derivatives, gum stabilized nanoparticles, and functionalized electrospun nanofibrous membranes will also be highlighted. The functionalities of nanofibrous membranes that can be enhanced by various plasma treatments (oxygen and methane, respectively) will also be emphasized.

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“…The antihyperlipidemic activity of ulvan was found to depend on the molecular weight of ulvan fractions; high molecular weight fraction was more effective on total serum and LDL-cholesterol whereas low molecular weight fractions were more effective on TG and HDLcholesterol [26,57]. Toskas et al were able to fabricate defect free nanofibers by electrospinning ulvan and Polyvinyl Alcohol (PVA) solutions with appropriate ulvan to PVA mass ratios and polymer concentrations [58]. The spinnability of ulvan, in combination with its interesting biological and physicochemical properties, can lead to new biomedical applications such as drug release system.…”

Section: Biological Activitiesmentioning

confidence: 99%

The Marine Macroalgae of the Genus Ulva: Chemistry, Biological Activities and Potential Applications

Silva¹,

Vieira²,

Almeida³

et al. 2013

Oceanography

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Nanofibers based on polysaccharides from the green seaweed Ulva Rigida

Cited by 120 publications

References 62 publications

Fabrication, Characterization, and Antibacterial Properties of Electrospun Membrane Composed of Gum Karaya, Polyvinyl Alcohol, and Silver Nanoparticles

Fabrication, Characterization, and Antibacterial Properties of Electrospun Membrane Composed of Gum Karaya, Polyvinyl Alcohol, and Silver Nanoparticles

Green Synthesis: Nanoparticles and Nanofibres Based on Tree Gums for Environmental Applications

The Marine Macroalgae of the Genus Ulva: Chemistry, Biological Activities and Potential Applications

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