Cellulose-based water purification using paper filters modified with polyelectrolyte multilayers to remove bacteria from water through electrostatic interactions

Ottenhall, Anna; Henschen, Jonatan; Illergård, Josefin; Ek, Monica

doi:10.1039/c8ew00514a

Cited by 38 publications

(28 citation statements)

References 51 publications

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“…the electrostatic interaction principle). 103,104 However, it is noteworthy that the number of studies regarding this issue is still lacking. Contaminated water resources can cause serious illnesses and thereby could affect human health and the environment.…”

Section: Reviewmentioning

confidence: 99%

Emerging development of nanocellulose as an antimicrobial material: an overview

et al. 2021

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Section: Reviewmentioning

confidence: 99%

Emerging development of nanocellulose as an antimicrobial material: an overview

et al. 2021

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“…Ottenhall et al (2018) [ 110 ] developed a CNF-based membrane filter, modified with polyelectrolyte multilayers to produce multilayer cationic polyvinyl amine (PVAm) and anionic polyacrylic acid (PAA). The authors successfully modified the CNF with cationic polyelectrolyte PVAm, together with the anionic polyelectrolyte PAA in either single layers or multilayers (3 or 5 layers) using a water-based process at room temperature.…”

Section: Recent Developments On Nanocellulose As a Filtration Materials Against Microbesmentioning

confidence: 99%

Emerging Developments Regarding Nanocellulose-Based Membrane Filtration Material against Microbes

et al. 2021

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The wide availability and diversity of dangerous microbes poses a considerable problem for health professionals and in the development of new healthcare products. Numerous studies have been conducted to develop membrane filters that have antibacterial properties to solve this problem. Without proper protective filter equipment, healthcare providers, essential workers, and the general public are exposed to the risk of infection. A combination of nanotechnology and biosorption is expected to offer a new and greener approach to improve the usefulness of polysaccharides as an advanced membrane filtration material. Nanocellulose is among the emerging materials of this century and several studies have proven its use in filtering microbes. Its high specific surface area enables the adsorption of various microbial species, and its innate porosity can separate various molecules and retain microbial objects. Besides this, the presence of an abundant OH groups in nanocellulose grants its unique surface modification, which can increase its filtration efficiency through the formation of affinity interactions toward microbes. In this review, an update of the most relevant uses of nanocellulose as a new class of membrane filters against microbes is outlined. Key advancements in surface modifications of nanocellulose to enhance its rejection mechanism are also critically discussed. To the best of our knowledge, this is the first review focusing on the development of nanocellulose as a membrane filter against microbes.

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“…The developed membrane lter had excellent ability to remove bacteria including Escherichia coli, Salmonella typhi, and Staphylococcus aureus with a percentage ltration of more than 91% in contaminated water samples. Ottenhall et al (2018) developed a CNF-based membrane lter modi ed with polyelectrolyte multilayers to produce multilayer cationic polyvinyl amine (PVAm) and anionic polyacrylic acid (PAA). The authors had successfully modi ed the CNF with cationic polyelectrolyte PVAm together with the anionic polyelectrolyte PAA in either single layers or multilayers (3 or 5 layers) using a water-based process at room temperature.…”

Section: Bacteriamentioning

confidence: 99%

“…through the electrostatic interaction principle) (Kim et al 2017;Ottenhall et al 2018). as harvesting e ciency could reach up to 85% with only 0.2g CNC-APIm mass ratio, 5secs of CO 2 sparging time, and a 50 ml/min ow rate.…”

Section: Other Types Of Microbesmentioning

confidence: 99%

Emerging Developments Regarding Nanocellulose-based Membrane Filtration Material Against Microbes

Norrrahim

Kasim

Knight

et al. 2021

Preprint

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Wide availability and diversity of dangerous microbes poses a considerable problem for health professionals and in the development of new healthcare products. Numerous studies have been conducted to develop membrane filters that have antibacterial properties to solve this problem. Without proper protective filter equipment, healthcare providers, essential workers, and the general public are exposed to the risk of infection. A combination of nanotechnology and biosorption is expected to offer a new and greener approach to improve the usefulness of polysaccharides as an advanced membrane filtration material. Nanocellulose is among the emerging materials of this century and several studies had proven its usefulness in filtering microbes. Its high specific surface area enables the adsorption of various microbial species, and its innate porosity can separate various molecules and retain microbial objects. Besides that, the presence of an abundant OH groups in nanocellulose allows its surface modification which can increase its filtration efficiency through the formation of affinity interactions toward microbes. In this review, an update of the most relevant uses of nanocellulose as a new class of membrane filters against microbes is outlined. Key advancements in surface modifications of nanocellulose to enhance its rejection mechanism is also critically discussed. To the best of our knowledge, this is the first review focusing on the development of nanocellulose as a membrane filter against microbes.

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Cellulose-based water purification using paper filters modified with polyelectrolyte multilayers to remove bacteria from water through electrostatic interactions

Abstract: Bacteria are removed from contaminated waters through adsorption onto the modified cellulose fiber surface in paper filters with pores larger than the bacteria.

Cited by 38 publications

References 51 publications

Emerging development of nanocellulose as an antimicrobial material: an overview

Emerging development of nanocellulose as an antimicrobial material: an overview

Emerging Developments Regarding Nanocellulose-Based Membrane Filtration Material against Microbes

Emerging Developments Regarding Nanocellulose-based Membrane Filtration Material Against Microbes

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