Electrospinning optimization and characterization of Chitosan/Alginate/Polyvinyl alcohol nanofibers

Kusumastuti, Yuni; Putri, Nur Rofiqoh Eviana; Dary, Ahmad Raihan

doi:10.1063/1.4958580

Cited by 9 publications

(3 citation statements)

References 11 publications

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“…The conductivity of the polymer solution determines the success of nanofiber fabrication using the electrospinning method. Chitosan as natural polymers contains ions which have higher tension under electric force during the electrospinning process [17]. By mixing the natural polymers with synthetic polymers, the conductance of samples can be controlled.…”

Section: Resultsmentioning

confidence: 99%

Preparation of Chitosan-Polycaprolactone (PCL) Composite Nanofiber as Potential for Annulus Fibrosus Regeneration

Putri

Kurniawan

Pradana

et al. 2020

KEM

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Tissue engineering has shown a remarkable result in medical applications. Further exploration, these multidisciplinary fields are also given a possibility as an alternative medication for intervertebral disc (IVD) degeneration. Focusing on the annulus fibrous repair, to improve the mechanical properties of biomaterials, a composite made of chitosan and polycaprolactone (PCL) was developed in this present study. Due to its tuneable properties, the electrospinning-based method was used in the experiment to create the chitosan/PCL composite. Varies concentration of PCL (11, 12, and 13 wt%) and a different ratio of precursors chitosan to PCL (1:1; 1:3; 1:5) were used to optimize the composition of natural and synthetic polymer in the composite nanofibers. The obtained nanofibers were then characterized using Scanning Electron Microscopy (SEM) to observe the morphology, swelling test, Fourier Transform Infrared (FTIR) spectroscopy, and Differential Scanning Calorimetry (DSC). The results show that the increasing concentration and composition of PCL could form the more homogeneous and larger diameter of nanofiber with fewer beads compare to the lower composition of PCL nanofiber. Meanwhile, the swelling percentage decreases by increasing the amount of PCL. FTIR results also show that all samples of composite nanofibers contain both chitosan and PCL.

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Section: Resultsmentioning

confidence: 99%

Preparation of Chitosan-Polycaprolactone (PCL) Composite Nanofiber as Potential for Annulus Fibrosus Regeneration

Putri

Kurniawan

Pradana

et al. 2020

KEM

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“…The eld nanotechnology fashioned a nanocarrier for microbe encapsulation is electrospin nano ber. In electrospinning, a high voltage has applied to reduce surface tension and stretch the polymer solution into nano ber (Kusumastuti et al 2016). The nano ber has copious unique characteristics, such as high porosity, large surface area, small diameter, unique morphology, easy fabrication and composition bids several advantages for agriculture.…”

Section: Introductionmentioning

confidence: 99%

Azotobacter chroococcum encapsulated Chitosan/PVA composite nanofiber coated seeds for enhancing germination, seedling vigor and growth of green gram (Vigna radiata)

Kumuthan

Lakshmanan

et al. 2023

Preprint

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Seed treatment with plant growth promoting rhizobacteria (PGPR) is an idyllic tool for improving germination, growth and productivity of crop. However, the maintenance of viable microorganisms in biofertilizers is a major issue during the seed and soil application. In this work, a superlative methodology was made for encapsulation of Azotobacter chroococcum in Chitosan/Polyvinyl alcohol (PVA) composite nanofiber by electrospin technique and evaluated its effect in improving green gram seed quality. The morphology and functional group of microbes loaded in Chitosan/PVA nanofibers were characterized and confirmed by Scanning Electron Microscope and FT-IR. The results of microbial plating technique showed that nanofiber has maintained the viability of microbes for prolonged time. In addition, Exopolysaccharide and IAA production by Azotobacter chroococcum loaded in nanofiber was estimated and found with constructive outcomes. The bio-efficacy studies exposed that the seeds coated with Azotobacter chroococcum loaded nanofiber, improved the germination percentage, seedling vigor, plant height, plant root length, plant biomass, nodule count and nodules fresh weight. This study concluded that immobilizing PGPR bacteria in nanofiber could improve prolonged shelf-life of microbes and as a potential seed invigoration technique for smart delivery of microbes, and efficient colonization at rhizosphere for better emergence and growth.

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“…Alginate, pectin, and sodium tripolyphosphate (TPP) are polyanions that can be combined with chitosan. Alginate as polyanion will interact with chitosan to form a polyion complex through ionic interaction between carboxyl group and amine group [6] that will enhance its mechanical properties [7,8]. TPP is a nontoxic crosslinker which consists of three phosphate functional groups to form polyion or polyelectrolyte complex [9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Chitosan-Based Polyion Multilayer Coating on NPK Fertilizer as Controlled Released Fertilizer

Kusumastuti

Istiani

Rochmadi

et al. 2019

Advances in Materials Science and Engineering

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Low efficiency of conventional fertilizer (quick release fertilizer) application in agricultural sectors has caused environmental pollution and health problems. A method to overcome the drawback of the conventional fertilizer is by controlled release fertilizer (CRF) preparation. CRF is expected to be able to fulfil the nutrient demand of targeted plants. The objective of this research is to prepare CRF by coating NPK fertilizer with multilayer chitosan-polyanion using alginate, pectin, and sodium tripolyphosphate (TPP). In addition, the effect of the layer arrangement modification of material on the rate of nitrogen release was also studied. The mechanical strength of coated fertilizer was analysed by compressive stress test and the properties of the fertilizer coating was observed by scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FTIR). The nitrogen release study shows that multilayer of chitosan-alginate (CA)5, chitosan-pectin (CP)5, and chitosan-TPP (CT)5 as coating material was able to increase the compressive stress and decrease the nitrogen release of coated fertilizer. These results are supported by the FTIR analysis which exhibits the formation of ionic interaction between amine group of chitosan and carboxyl group of alginate in chitosan-alginate (CA)5 layer, carboxyl group of pectin in chitosan-pectin (CP)5 layer, and phosphate of TPP in chitosan-TPP (CT)5 layer. On the other hand, the modification of the arrangement of chitosan-alginate layers showed that the fertilizer with the alternating layer arrangement (CA)5 was able to optimally increase the compressive strength. The mathematical model for the nitrogen release of coated fertilizer is also prepared and simulated with the MATLAB software. The simulation results showed that the nitrogen release of coated fertilizer followed the proposed diffusion mechanism. The obtained diffusivity coefficient value in the layer of chitosan-alginate (CA)5 is 2.0933 × 10−6 cm2/s, 2.5606 × 10−6 cm2/s in chitosan-TPP (CT)5 layer, and 3.7256 × 10−6 cm2/s in chitosan-pectin (CP)5 layer.

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Electrospinning optimization and characterization of Chitosan/Alginate/Polyvinyl alcohol nanofibers

Cited by 9 publications

References 11 publications

Preparation of Chitosan-Polycaprolactone (PCL) Composite Nanofiber as Potential for Annulus Fibrosus Regeneration

Preparation of Chitosan-Polycaprolactone (PCL) Composite Nanofiber as Potential for Annulus Fibrosus Regeneration

Azotobacter chroococcum encapsulated Chitosan/PVA composite nanofiber coated seeds for enhancing germination, seedling vigor and growth of green gram (Vigna radiata)

Chitosan-Based Polyion Multilayer Coating on NPK Fertilizer as Controlled Released Fertilizer

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