Ag-enriched TiO2 nanocoating apposite for self-sanitizing/ self-sterilizing/ self-disinfecting of glass surfaces

Khan, Gulzar; Malik, Suman

doi:10.1016/j.matchemphys.2022.125803

Cited by 15 publications

(5 citation statements)

References 48 publications

(53 reference statements)

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“…Even at low concentrations, TiO 2 -NPs can demonstrate antiviral activity, as depicted by recent in vitro studies. 79 , 80 TiO 2 –NPs under ultraviolet (UV) light produce a strong oxidative effect and utilizing the property can be used as a photocatalytic disinfectant. 81 TiO 2 –NPs activate during the photocatalytic reaction and generate hydrogen peroxide and hydroxyl radicals, thus reducing glycosylation of the main protease of the virus.…”

Section: Combat Of Sars-cov-2mentioning

confidence: 99%

Advances in Nanomaterial-Based Platforms to Combat COVID-19: Diagnostics, Preventions, Therapeutics, and Vaccine Developments

Mahmud¹,

Anik

Hossain

et al. 2022

ACS Appl. Bio Mater.

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The COVID-19 pandemic caused by the SARS-CoV-2, a ribonucleic acid (RNA) virus that emerged less than two years ago but has caused nearly 6.1 million deaths to date. Recently developed variants of the SARS-CoV-2 virus have been shown to be more potent and expanded at a faster rate. Until now, there is no specific and effective treatment for SARS-CoV-2 in terms of reliable and sustainable recovery. Precaution, prevention, and vaccinations are the only ways to keep the pandemic situation under control. Medical and scientific professionals are now focusing on the repurposing of previous technology and trying to develop more fruitful methodologies to detect the presence of viruses, treat the patients, precautionary items, and vaccine developments. Nanomedicine or nanobased platforms can play a crucial role in these fronts. Researchers are working on many effective approaches by nanosized particles to combat SARS-CoV-2. The role of a nanobased platform to combat SARS-CoV-2 is extremely diverse (i.e., mark to personal protective suit, rapid diagnostic tool to targeted treatment, and vaccine developments). Although there are many theoretical possibilities of a nanobased platform to combat SARS-CoV-2, until now there is an inadequate number of research targeting SARS-CoV-2 to explore such scenarios. This unique mini-review aims to compile and elaborate on the recent advances of nanobased approaches from prevention, diagnostics, treatment to vaccine developments against SARS-CoV-2, and associated challenges.

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Section: Combat Of Sars-cov-2mentioning

confidence: 99%

Advances in Nanomaterial-Based Platforms to Combat COVID-19: Diagnostics, Preventions, Therapeutics, and Vaccine Developments

Mahmud¹,

Anik

Hossain

et al. 2022

ACS Appl. Bio Mater.

View full text Add to dashboard Cite

show abstract

“…The starting point of the sol–gel method is a sol–gel dispersion of the coating precursor, which was initially used to prepare Al 2 O 3 coatings and was then gradually extended to other coatings such as ZrO 2 (Yu et al 2017 ), SiO 2 (Jeong et al 2022 ), TiO 2 (Khan and Malik 2022 ), CeO 2 (Kavitha et al 2022 ). An important factor in the process of sol–gel is the sol-gelation time.…”

Section: Preparation Of Stainless Steel Catalystmentioning

confidence: 99%

Stainless steel catalyst for air pollution control: structure, properties, and activity

Wang

Zhao

Tang

et al. 2022

Environ Sci Pollut Res

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With the awakening of environmental awareness, the importance of air quality to human health and the proper functioning of social mechanisms is becoming increasingly prominent. The low cost and high efficiency of catalytic technique makes it a natural choice for achieving deep air purification. Stainless steel alloys have demonstrated their full potential for application in a variety of catalytic fields. The diversity of 3D networks or fibrous structures increases the turbulence within the heterogeneous catalysis, balance the temperature distribution in the reaction bed and, in combination with a highly thermally conductive skeleton, avoid agglomeration and deactivation of the active components; corrosion resistance and thermal stability are adapted to highly endothermic/exothermic or corrosive reaction environments; oxide layers formed by bulk transition metals activated by thermal treatment or etching can significantly alter the physico-chemical properties between the substrate and active species, further improving the stability of stainless steel catalysts; suitable electronic conductivity can be applied to the electrothermal catalysis, which is expected to provide guidance for the reduction of intermittent emission exhausts and the storage of renewable energy. The current applications of stainless steel as catalyst or support in the air purification have covered soot particle capture and combustion, catalytic oxidation of VOCs, SCR, and air sterilization. This paper summarizes several preparation methods and presents the relationships between the preparation process and the activity, and reviews its application and the current status of research in atmospheric environmental management, proposing the advantages and challenges of the stainless steel-based catalysts.

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“…Superior technologies to control the spread of the coronavirus disease 2019 pandemic have been strongly desired (Khan et al, 2022;Prakash et al, 2022;Pasquale et al, 2021) . The use of TiO 2 -based photocatalytic semiconductors is one of the excellent technologies for pathogen disinfection (Khan et al, 2022;Prakash et al, 2022;Pasquale et al, 2021) and antibacterial applications (Singh et al, 2022;Liao et al, 2021;He et al, 2021a;He et al, 2021b;Liu et al, 2021) . This reason is that TiO 2 irradiated with ultraviolet (UV) is more effective in eliciting microbial death than other photocatalytic semiconductors (Kubacka et al, 2014) .…”

Section: Notementioning

confidence: 99%

Remote Bactericidal Effect of Anatase TiO<sub>2</sub> Photocatalytic Nanoparticles Annealed with Low-Temperature O<sub>2</sub> Plasma

et al. 2022

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The remote bactericidal effect of TiO 2 photocatalyst, i.e., the bactericidal effect away from the photocatalyst, was successfully achieved using a humidified airflow. The TiO 2 photocatalyst used was anatase-type TiO 2 nanoparticles (NPs) annealed with a low-temperature O 2 plasma. For comparison, anatase-type TiO 2 NPs annealed in the air were used. The bacteria, Bacillus subtilis, were placed away from the TiO 2 NPs. The plasma-assisted-annealed TiO 2 NPs significantly inactivated 99% of the bacterial cells in 5 h, whereas the pristine and air-annealed TiO 2 NPs inactivated 88-90% of the bacterial cells. The remote bactericidal effect of plasmaassisted-annealed TiO 2 NPs would be attributed to a larger amount of H 2 O 2 molecules traveled by the airflow from the TiO 2 NPs. The molecules were generated by chemically reacting more photoexcited carriers on the TiO 2 surface with H 2 O and O 2 in the airflow. These photoexcited carriers originated from more oxygen-based species adsorbed and more oxygen vacancies introduced on the TiO 2 surface by the plasma-assisted-annealing. Key words ： Remote bactericidal effect / Anatase titanium dioxide nanoparticles / Plasma-assisted annealing / Reactive oxygen species / Hydrogen peroxide.

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Ag-enriched TiO2 nanocoating apposite for self-sanitizing/ self-sterilizing/ self-disinfecting of glass surfaces

Cited by 15 publications

References 48 publications

Advances in Nanomaterial-Based Platforms to Combat COVID-19: Diagnostics, Preventions, Therapeutics, and Vaccine Developments

Advances in Nanomaterial-Based Platforms to Combat COVID-19: Diagnostics, Preventions, Therapeutics, and Vaccine Developments

Stainless steel catalyst for air pollution control: structure, properties, and activity

Remote Bactericidal Effect of Anatase TiO<sub>2</sub> Photocatalytic Nanoparticles Annealed with Low-Temperature O<sub>2</sub> Plasma

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