Green synthesis of chitosan-stabilized silver-colloidal nanoparticles immobilized on white-silica-gel beads and the antibacterial activities in a simulated-air-filter

Hidayat, Muhammad; Adlim, Muhammad; Maulana, Ilham; Suhartono, Suhartono; Hayati, Zinatul; Bakar, Noor Hana Hanif Abu

doi:10.1016/j.arabjc.2021.103596

Cited by 33 publications

(14 citation statements)

References 84 publications

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“…Compared to synthetic electrets, naturally charged polymers are most promising for long-lasting air filtration, as they can achieve high electrostatic adsorption without recharging and regeneration. − Chitosan is a charged natural polymer with promise for long-lasting air filtration. Chitosan comprises N -acetyl- d -glucosamine and β-(1–4)-linked d -glucosamine with a highly stable distribution of naturally positively charged groups on its backbone. − The ionizable amino and hydroxyl groups of chitosan facilitate the binding of negatively charged particles in the air and can improve the filtration efficiency of chitosan-based filters. − Moreover, the positive charge of chitosan interacts with the envelope proteins of viruses, disrupts viruses’ structure, or interferes with their replication. − For example, Hathout and Kassem suggested that the application of positively charged chitosan or poly- l -lysine fibers in personal protective masks or protective clothing could reduce the viral load by exploiting the electrostatic repulsion between the fibers and SARS-CoV-2 (Figure c) . Recently, Zhang et al used hot air chitosan fibers as an antiviral layer for masks, and the chitosan fibers’ electrostatic effect reduced the activity of enterovirus 71 (EV71, which can be transmitted through the respiratory tract) .…”

Section: Electroactive Materials For Preventing Virus Infections In F...mentioning

confidence: 99%

The Rise of Electroactive Materials in Face Masks for Preventing Virus Infections

Zhang,

Wang,

Zhang

et al. 2023

ACS Appl. Mater. Interfaces

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Air-transmitted pathogens may cause severe epidemics, posing considerable threats to public health and safety. Wearing a face mask is one of the most effective ways to prevent respiratory virus infection transmission. Especially since the new coronavirus pandemic, electroactive materials have received much attention in antiviral face masks due to their highly efficient antiviral capabilities, flexible structural design, excellent sustainability, and outstanding safety. This review first introduces the mechanism for preventing viral infection or the inactivation of viruses by electroactive materials. Then, the applications of electrostatic-, conductive-, triboelectric-, and microbattery-based materials in face masks are described in detail. Finally, the problems of various electroactive antiviral materials are summarized, and the prospects for their future development directions are discussed. In conclusion, electroactive materials have attracted great attention for antiviral face masks, and this review will provide a reference for materials scientists and engineers in antiviral materials and interfaces.

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Section: Electroactive Materials For Preventing Virus Infections In F...mentioning

confidence: 99%

The Rise of Electroactive Materials in Face Masks for Preventing Virus Infections

Zhang,

Wang,

Zhang

et al. 2023

ACS Appl. Mater. Interfaces

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“…Mechanistically, the Ag nanoparticles interacted with the proteins present on the bacteria cell wall and the phospholipids which results in the rupture of the cell wall inhibiting the bacteria cell growth (Fig. 9-11) [38]. Silver nanoparticle doped on aminated polyether sulfone-based nanocomposite membrane was prepared and was applied for wastewater treatment.…”

Section: Application Of Silver Nanoparticles For the Environmentmentioning

confidence: 99%

The Use of Silver Nanoparticles in Environmental Remediation

Panda¹,

Chakroborty²,

Krishna³

2023

Preprint

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The invention of nanoscience not only brings a revolutionary change in the field of science but also changed the direction of research. Today the whole world is under the trigger of nano and nanoparticles have multidimensional applications in every aspect of life including environmental point of view. Till today a plethora of nanoparticles have been synthesized and have also been applied for multiple purposes and hence grabbed the attention of researchers all over the world. Among the bunch of NPs discovered to date, we have a particular interest in silver nanoparticles (AgNPs) because of their cost-effectiveness and huge abundance in the earth’s crust. With respect to every passing day, due to various kinds of anthropological activities, the quality of the environment such as air, water and soil is depleting which ultimately hampers the human civilization. To encompass the growing environmental issues, many techniques have been adopted. Among the many strategies, tackling the current issues regarding environment through nanoscience is highly worthy as because of its cost-effectiveness, less time consuming and easy handling process. This article reviews the potential of nanoparticles, particularly silver nanoparticles, for a wide range of environmental applications, such as soil, air, and water remediation.

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“…The traditional fiber diameters are at the micrometer scale, which may restrict their effectiveness in capturing PM and can result in an increased pressure drop. , This inevitably leads to higher energy consumption. Meanwhile, the majority of air filters lacks antibacterial properties, and as a result, captured microorganisms within the filtering material might remain active, potentially elevating the hazard of infection and spread, while the filter is in use or upon multiple uses. , It is unable to meet the requirements of personal protection, indoor cleaning, and industrial production . Hence, improving efficiency, reducing pressure drop, and adding antibacterial properties to air filtration materials have become a hot topic. − …”

Section: Introductionmentioning

confidence: 99%

Bead-on-String-Like Nanofibrous Membrane for High-Efficiency, Low-Pressure Drop Air Filters with Antimicrobial Properties

Sun,

Ju,

Xiong

et al. 2024

ACS Appl. Polym. Mater.

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Particulate matter (PM) pollution poses a significant risk to public health, as it can carry pathogens such as bacteria and viruses into the body through the respiratory tract, leading to a variety of illnesses. Electrospun nanofibrous membranes (ENMs) exhibit substantial promise for air filtration applications. However, most nanofibrous membranes have a trade-off between filtration efficiency and pressure drop. The bead-on-string structured membranes are characterized by their ability to achieve a higher efficiency and lower pressure drop. Here, we prepared a bead-on-string-like structure of ENM with fluxible poly(p-phenylene terephthalamide) (f-PPTA) and silver nanoparticles (Ag NPs) on a polypropylene (PP) nonwoven fabric substrate. The two layers of membranes enable graded filtration and reduce the pressure drop. The f-PPTA plays a role in controlling both the diameter and roughness of nanofibrous membranes, and its grafted quaternary ammonium salts impart antimicrobial properties to the membrane. Ag NPs serve as a skeleton and form a bead-on-string-like structure with f-PPTA/PA6 nanofibers. In conclusion, this membrane achieves a 99.39% efficiency for PM0.3, a low-pressure drop of 21 Pa, and a quality factor (QF) value of 0.24 Pa–1 and exhibits antibacterial properties against both E. coli and S. aureus. This study indicates that the nanofiber structure can be transformed into a bead-on-string-like structure with low-pressure drop by reasonable matching of the size of nanoparticles and nanofibers, and the combined action of f-PPTA and Ag NPs can effectively improve the antibacterial effect of nanofiber membranes, which is of significant importance for the research on high-efficiency particulate air (HEPA) filter.

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Green synthesis of chitosan-stabilized silver-colloidal nanoparticles immobilized on white-silica-gel beads and the antibacterial activities in a simulated-air-filter

Cited by 33 publications

References 84 publications

The Rise of Electroactive Materials in Face Masks for Preventing Virus Infections

The Rise of Electroactive Materials in Face Masks for Preventing Virus Infections

The Use of Silver Nanoparticles in Environmental Remediation

Bead-on-String-Like Nanofibrous Membrane for High-Efficiency, Low-Pressure Drop Air Filters with Antimicrobial Properties

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