Adsorption of rotavirus and bacteriophage MS2 using glass fiber coated with hematite nanoparticles

Gutierrez, Leonardo; Li, Xuan; Wang, Jinwen; Nangmenyi, Gordon; Economy, James; Kuhlenschmidt, Theresa B.; Kuhlenschmidt, Mark S.; Nguyen, Thanh H.

doi:10.1016/j.watres.2009.08.031

Cited by 118 publications

(121 citation statements)

References 32 publications

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“…The results are consistent with the MS2 experiments performed in these studies and rotavirus experiments performed by Gutierrez et al [29]. In a study using flowthrough columns packed with hematite coated glass fibers, it was found that 3 × 10 4 FFU of rotavirus was removed per gram of hematite nanoparticles.…”

Section: Removal Of Rotavirus In Columns With Biofilm Growthsupporting

confidence: 91%

“…MS2 was replicated and purified as described previously [29][30][31][32][33] with the following modifications . Select experiments were also performed using rotavirus (RV) to verify MS2 results.…”

Section: Virus Selection and Assaymentioning

confidence: 99%

“…NGW has been characterized and used in previous studies [37]. Content of total organic carbon (TOC) was measured using a Phoenix 8000 TOC Analyzer (Dohrmann, USA) in previous studies and found to be 2.35 mg/L [29]. Turbidity of the groundwater and the effluent were 0.25 NTU and 0.70 NTU, respectively, as measured by a Hach Turbidity Meter 43900.…”

Section: Solution Chemistrymentioning

confidence: 99%

“…The isoelectric point (IEP), the pH at which the surface charge of the virus is neutral or zero, is 3.5-3.9 for MS2 [29,[46][47][48]. As the pH of the aqueous solution decreases and approaches the IEP, the net negative charge of the MS2 decreases, resulting in the reduction of electrostatic repulsive interactions between the negatively charged virion particles and the negatively charged sand particles [4].…”

Section: Short Term Removal Using Continuous Flow (Ms2)mentioning

confidence: 99%

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Iron oxide amended biosand filters for virus removal

et al. 2011

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Laboratory studies were performed to determine if the addition of iron oxides throughout biosand filter (BSF) media would increase virus removal due to adsorption.The proposed mechanism is electrostatic adsorption of negatively charged virion particles to positively charged iron oxides formed during the corrosion of zerovalent iron. Initial tests conducted using continuous flow, small-scale glass columns showed high MS2 bacteriophage removal in an iron-amended sand column (5-log 10 ) compared to a sand only column (0.5-log 10 ) over 20 pore volumes. Additionally, two experiments with a column containing iron particles revealed 4 and 5 log 10 removal of rotavirus in the presence of 20 mg/L total organic carbon. Full-scale BSFs with iron particles removed >4-log 10 MS2 for the duration of the experiment (287 days), while BSF with steel wool removed >4-log 10 MS2 for the first 160 days. Plug flow for the BSF was shown to depend on uniformity between the iron oxide material and sand media grains. The results suggest that the duration of effective virus removal by iron-amended biosand filtration depends on source water conditions and the quantity and composition of iron material added. Overall, this study provides evidence that iron-amended BSFs may advance the field of point-of-use technologies and bring relief to millions of people suffering from waterborne diseases.iii ACKNOWLEDGMENTS

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Section: Removal Of Rotavirus In Columns With Biofilm Growthsupporting

confidence: 91%

Section: Virus Selection and Assaymentioning

confidence: 99%

Section: Solution Chemistrymentioning

confidence: 99%

Section: Short Term Removal Using Continuous Flow (Ms2)mentioning

confidence: 99%

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Iron oxide amended biosand filters for virus removal

et al. 2011

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“…As mentioned above, the pI of bacteriophage f2 is 4.0, and the phage f2 was electronegative in the system. As a result, virus could be adsorbed on the surface of iron oxide due to its great electrostatic force (Ryan et al, 2002;Gutierrez et al, 2009). Then the removal of bacteriophage f2 can be attributed to the combined adsorption effect of g-FeOOH and Fe 3 O 4 and/or Fe 2 O 3 after the total oxidation of NZVI.…”

Section: The Bacteriophage F2 Removal By Nzvi Residuementioning

confidence: 99%

The mechanism for bacteriophage f2 removal by nanoscale zero-valent iron

Cheng

Shi

et al. 2016

Water Research

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Advances in the application of functional nanomaterial and cold plasma for the fresh‐keeping active packaging of meat

Umair

Sultana

Song

et al. 2023

Food Science & Nutrition

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The most recent advancements in food science and technology include cold sterilization of food and fresh‐keeping packaging. Active packaging technology has received much interest due to the photocatalytic activity (PCA) of functional nanoparticles, including titanium dioxide (TiO2) and ferric oxide (Fe2O3). However, there are still significant concerns about the toxicity and safety of these functional nanoparticles. This review emphasizes the bacteriostatic and fresh‐keeping properties of functional nanoparticles as well as their packaging strategies using the ultraviolet photo‐catalysis effect. High‐voltage electric field cold plasma (HVEF‐CP) is the most innovative method of cold‐sterilizing food. HVEF‐CP sterilizes by producing photoelectrons, ions, and active free radicals on food media, which come into contact with the bacteria's surface and destroy their cells. Next, this review also assesses the photocatalytic activity and bacteriostasis kinetics of nanosized TiO2 and Fe2O3 in poultry, beef, and lamb. In addition, this review also emphasizes the importance of exploiting the complex interaction processes between TiO2 and Fe2O3, along with dietary components and their utilization in the fresh meat industry.

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Adsorption of rotavirus and bacteriophage MS2 using glass fiber coated with hematite nanoparticles

Cited by 118 publications

References 32 publications

Iron oxide amended biosand filters for virus removal

Iron oxide amended biosand filters for virus removal

The mechanism for bacteriophage f2 removal by nanoscale zero-valent iron

Advances in the application of functional nanomaterial and cold plasma for the fresh‐keeping active packaging of meat

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