Role of Nanofibers in Bioremediation

Devi, S. Aiswarya; Muthukumar, Harshiny; Matheswaran, Manickam

doi:10.1007/978-981-10-7485-1_6

Cited by 6 publications

(4 citation statements)

References 51 publications

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“…The immobilization of the inoculant in the polymeric matrix is based on the absorption immobilization process in which the inoculant remains attached to the surface of the matrix because of physical interactions (hydrogen bridge, ionic bonds, hydrophobic bonds, and Van der Waals forces) and the immobilization process known as entrapment, in which the inoculant is captured around the polymer matrix and between sheets of nanofibers as described by Aiswarya and colleagues …”

Section: Resultsmentioning

confidence: 99%

“…In previous research, the use of fibrous polymeric matrices has been studied in the coating of seeds and seedlings as an alternative to immobilize beneficial soil microorganisms. − These formulations are based on the restriction of living cells in spaces confined by a polymer, preventing the free circulation of microorganisms and protecting them from the environment. , …”

Section: Introductionmentioning

confidence: 99%

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Nanofibers as a Delivery System for Arbuscular Mycorrhizal Fungi

Campaña

Arias

2020

ACS Appl. Polym. Mater.

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Arbuscular mycorrhizal fungi (AMF) are beneficial symbiotic organisms that play an important role in the water absorption and nutrient assimilation for a wide variety of plants. In this work, the use of polyethylene oxide (PEO) nanofibers was studied as a delivery system for AMF through the coated nanofibers of common bean seeds (Phaseolus vulgaris L var. José Beta). Thus, the effect of PEO nanofibers on the infective capacity of AMF and the indicator parameters of plant growth promotion (height plant, root length, number of leaves, number of flower buds, number of pods, fresh weight, and dry weight) was examined. Likewise, the mycorrhizal colonization rate and the indicator parameters of plant growth promotion between a conventional inoculation strategy and inoculation by nanofiber-coated seeds were compared. The results show that PEO nanofibers did not have any negative effect on the infective capacity of AMF or the indicator parameters of plant growth promotion. On the other hand, the inoculated bean plants showed a significant increase of 200, 140, and 143% in the number of flower buds, fresh weight, and dry weight, respectively. Moreover, no significant differences were observed in the mycorrhizal colonization rate between the two inoculation strategies used, even though the inoculant dose was 97% lower for the nanofiber-coated seeds. Therefore, nanofibers could represent a promising alternative as a seed-coating material and for the development of easy-to-apply and economically viable technologies for the application of AMF inoculants in the fields of agriculture, horticulture, forestry, ecological remediation, and related areas.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Nanofibers as a Delivery System for Arbuscular Mycorrhizal Fungi

Campaña

Arias

2020

ACS Appl. Polym. Mater.

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“…An efficient anode was developed by coating copper and iron oxide composite nanoparticles onto the surface of carbon paper through Amaranthus-mediated method. [56] The maximum power density of 161.5 mW m À2 was achieved when used for dairy wastewater treatment, which surpassed pure carbon paper (123.5 mW m À2 ). The inexpensive Cu-doped FeO nanoparticles enhanced the performance of power generation and exhibited good stability on carbon paper.…”

Section: Metal-based Nanomaterialsmentioning

confidence: 96%

“…[57] Copyright 2018, Elsevier. High electrical conductivity and biocompatibility [56] electronic conductivity, excellent environmental stability, and low cost. In addition, the conductive polymer can be easily doped with other nanomaterials to form nanocomposite.…”

Section: Conductive Polymer Materialsmentioning

confidence: 99%

Microbial Fuel Cells: Nanomaterials Based on Anode and Their Application

Liu

Zhang

et al. 2020

Energy Tech

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Microbial fuel cells (MFCs) exhibit great potential to generate power through organic wastewater treatment. Limitations have restricted the advanced development of MFCs, including low power density, expensive electrode materials, and the challenge to manufacture MFCs in large scale. However, the introduction of advanced anode materials, especially porous and nanostructured materials, is believed to be an effective way to solve the problems, as they can promote bacteria extracellular electron transfer (EET) because of their unique physical, chemical, and electrical properties. Nanostructured materials, including carbon nanotubes (CNTs), graphene, activated carbon fiber, metal, metal oxides and conductive polymers, show many appreciable properties such as good conductivity, large specific surface area, and excellent catalytic activity. Additionally, nanomaterials with unique electrochemical properties provide strong charge interactions with organic compounds and the direct electrochemistry process between bacteria and the anode. This Review comprehensively focuses on the recent development of modification of nanostructured anode materials in view of crucial intrinsic factors to enhance electricity output. Furthermore, the enhanced performance of MFCs and the corresponding known mechanism is also discussed, which enables active bacteria to facilitate electron transfer. Finally, promising strategies to modify anode nanomaterials for future research are presented.

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Immobilized Bacterial Cells on Electrospun Nanofibers for Crude Oil Spills Treatment and Bioremediation

et al. 2022

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Immobilization of biological molecules and cells on nanofibers is widely used in many applications ranging from medical to environmental applications. Immobilization materials provide cells with protection and surface for adhesion which in turn increases their efficiency for a particular application and stability over a longer period. Bioremediation of oil spills has recently become popular since scientists have developed processes that rely on cost-effectiveness and efficacy in crude oil treatments. For improved and sustainable performance of bioremediation, the system requires the development of cost-effective carrier substrates which undergo slow biodegradability and present a limited negative impact on the environment. Immobilization of bacteria on electrospun polymeric fibers is a recent research development aided by advances in nanotechnology. This could revolutionize bioremediation, treating the problem of crude oil spill pollution. In this review, we discuss the use of electrospinning to manufacture nanofibers entrapping and encapsulating bacterial cells for effective crude oil spill bioremediation. We go further to explain the recent developments in nanofiber technology with special emphasis on the correlation between method of electrospinning and relevant morphology of the formed fibers.

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Role of Nanofibers in Bioremediation

Cited by 6 publications

References 51 publications

Nanofibers as a Delivery System for Arbuscular Mycorrhizal Fungi

Nanofibers as a Delivery System for Arbuscular Mycorrhizal Fungi

Microbial Fuel Cells: Nanomaterials Based on Anode and Their Application

Immobilized Bacterial Cells on Electrospun Nanofibers for Crude Oil Spills Treatment and Bioremediation

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