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Journal Article•DOI•

The Effect of Ultraviolet Exposure on Physical Properties of Electrospun Nanofiber Membrane Based on Polyvinyl Alcohol and Aloe vera

Dyah Hikmawati1, Noveni Putri Maharani1, Alfian Pramudita Putra1, Siswanto1•
Airlangga University1
01 Aug 2020-Key Engineering Materials (Trans Tech Publications Ltd)-Vol. 860, pp 244-250
TL;DR: In this article, the characteristics of polyvinyl alcohol-Aloe vera (PVA-AV) nano-bers from the electrospinning process that was exposed by UV with the power of 8, 10, 15, and 20 W for 6 h.
Abstract: Ultraviolet (UV) irradiation in biomaterial synthesis is commonly used to do sterilization and increase physical characteristics. This study had a goal to evaluate the characteristics of polyvinyl alcohol-Aloe vera (PVA-AV) nanofibers from the electrospinning process that was exposed by UV with the power of 8, 10, 15, and 20 W for 6 h. The physical properties of the fiber were characterized by using Scanning Electron Microscope (SEM), Fourier Transform Infrared (FTIR), Differential Scanning Calorimetry (DSC) test, and water absorption test. The SEM images showed that the nanofibers were formed with s homogeneous structure and no beads. The diameter and the thickness of the nanofibers increased with the increase of the power of UV exposure to the sample. The biggest diameter was 319.60 ± 56.17 nm at UV exposure power of 20 W. The FTIR test result indicated that there was no new chemical bond after the PVA-AV was exposed by UV. DSC test result showed that the increase of power could increase the melting temperature (Tm) with the highest value of 189.51°C at UV exposure power of 20 W. The water absorption test showed that the highest water absorption was 739.6 % at UV exposure power of 20 W.
Citations
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Posted Content•DOI•
A Novel Aloe Vera-Loaded Ethylcellulose/Hydroxypropyl Methylcellulose Nanofibrous Mat Designed for Wound Healing Application

[...]

Leila Yavari1, Marjan Ghorbani1•
Tabriz University of Medical Sciences1
20 Jul 2021-Journal of Polymers and The Environment
TL;DR: In this article, the use of nanofibers (NFs) as wound dressings with the aim of their rapid healing and prevention of bacterial infection has been considered by researchers.
Abstract: Newly, the usage of nanofibers (NFs) as wound dressings with the aim of their rapid healing and prevention of bacterial infection has been considered by researchers. In this regard, we produced the ethylcellulose/hydroxypropyl methylcellulose NFs incorporated with Aloe-vera (EC/HPMC/Alv) by the electrospinning technique. The produced NFs were investigated for their chemical structure, morphological, mechanical, degradation, swelling, cell viability, and antibacterial properties. Amongst the produced NFs, the NF samples containing 10% Alv illustrated the appropriate mechanical properties. The produced NFs did not show any cell cytotoxicity which indicates their good compatibility. Also, NFs containing Alv significantly (P < 0.05) increased cell proliferation and adhesion. In addition, the NFs/Alv sample was indicated antibacterial ability against Staphylococcus aureus (10.21 ± 1.21 mm) and Escherichia coli (5.06 ± 1.3 mm) pathogenic bacteria. As a result, these findings suggest that the produced NFs could be applied as an active mat for wound dressing application.

15 citations

References
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Journal Article•DOI•
Electrospinning: a fascinating fiber fabrication technique.

[...]

Nandana Bhardwaj1, Subhas C. Kundu1•
Indian Institute of Technology Kharagpur1
01 May 2010-Biotechnology Advances
TL;DR: This review presents an overview of the electrospinning technique with its promising advantages and potential applications, and focuses on varied applications of electrospun fibers in different fields.

3,932 citations

"The Effect of Ultraviolet Exposure ..." refers methods in this paper

  • ...The ability of electrospinning method to fabricate nanofiber is usually implemented in medical field as tissue engineering, scaffold synthesis, wound dressing and drug delivery [1-2]....

    [...]

  • ...The parameters both from the equipment like the high potential difference, the gap from the needle to the collector, and flow rate and the parameters from the solution, like viscosity, solvent, and concentration and cross linking, have an important role in this method [2-4]....

    [...]

Journal Article•DOI•
A review on electrospinning for membrane fabrication: Challenges and applications

[...]

Farah Ejaz Ahmed1, Boor Singh Lalia1, Raed Hashaikeh1•
Masdar Institute of Science and Technology1
15 Jan 2015-Desalination
TL;DR: In this paper, the authors present a review on the preparation and application of electrospun nanofiber membranes as the barrier layer for water treatment, with emphasis on the reinforcement and post-treatment of electro-spun polymer membranes.

742 citations

"The Effect of Ultraviolet Exposure ..." refers methods in this paper

  • ...The parameters both from the equipment like the high potential difference, the gap from the needle to the collector, and flow rate and the parameters from the solution, like viscosity, solvent, and concentration and cross linking, have an important role in this method [2-4]....

    [...]

Book Chapter•DOI•
Effects of Working Parameters on Electrospinning

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Zhenyu Li1, Ce Wang1•
Jilin University1
01 Jan 2013
TL;DR: In this article, the authors present a concise introduction of those parameters and their influence on fiber properties, and present a detailed analysis of the effect of these parameters on fiber morphologies and diameters.
Abstract: Working parameters are very important to understand not only the nature of electrospinning but also the conversion of polymer solutions into nanofibers through electrospinning. Those parameters can be broadly divided into three parts such as solution parameters, process parameters, and ambient parameters. Each of those parameters can affect the fibers morphologies and by proper control of those parameters we can fabricate electrospun fibers with desired morphologies and diameters. In this chapter, we will present a concise introduction of those parameters and their influence on fiber properties.

271 citations

"The Effect of Ultraviolet Exposure ..." refers methods in this paper

  • ...The ability of electrospinning method to fabricate nanofiber is usually implemented in medical field as tissue engineering, scaffold synthesis, wound dressing and drug delivery [1-2]....

    [...]

Journal Article•DOI•
Electrospun Nanofibres Containing Antimicrobial Plant Extracts

[...]

Wanwei Zhang1, Sara Ronca1, Elisa Mele1•
Loughborough University1
15 Feb 2017-Nanomaterials
TL;DR: The diverse approaches that have been developed to produce electrospun nanofibres that are able to deliver naturally-derived chemical compounds in a controlled way and to prevent their degradation are described.
Abstract: Over the last 10 years great research interest has been directed toward nanofibrous architectures produced by electrospinning bioactive plant extracts. The resulting structures possess antimicrobial, anti-inflammatory, and anti-oxidant activity, which are attractive for biomedical applications and food industry. This review describes the diverse approaches that have been developed to produce electrospun nanofibres that are able to deliver naturally-derived chemical compounds in a controlled way and to prevent their degradation. The efficacy of those composite nanofibres as wound dressings, scaffolds for tissue engineering, and active food packaging systems will be discussed.

127 citations

"The Effect of Ultraviolet Exposure ..." refers methods in this paper

  • ...The parameters both from the equipment like the high potential difference, the gap from the needle to the collector, and flow rate and the parameters from the solution, like viscosity, solvent, and concentration and cross linking, have an important role in this method [2-4]....

    [...]

Journal Article•DOI•
Effect of crosslinking in chitosan/aloe vera-based membranes for biomedical applications.

[...]

Simone S. Silva1, Sofia G. Caridade1, João F. Mano1, Rui L. Reis1•
University of Minho1
15 Oct 2013-Carbohydrate Polymers
TL;DR: Bl blended membranes composed of chitosan and aloe vera gel were prepared through the solvent casting, and were crosslinked with genipin to improve their properties, suggesting that both blend compositions and crosslinking affected the physico-chemical properties and cellular behavior of the developed membranes.

99 citations

"The Effect of Ultraviolet Exposure ..." refers background in this paper

  • ...The aims of this process is to enhance the fiber stability, including by using chemical reaction to form covalent bonds, ionic bonds through electrostatic interactions, and physical interaction by exposing ultraviolet (UV) light [5-6]....

    [...]

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