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Locally enhanced electric field treatment (LEEFT) for water disinfection

Jianfeng Zhou, Ting Wang, Cecilia Yu, Xing Xie

Frontiers of Environmental Science & Engineering 2020, Volume 14, Issue 5, doi: 10.1007/s11783-020-1253-x

Abstract: advantages of no chemical addition, no DBP formation, low energy consumption, and efficient microbial inactivationThe studies on the inactivation mechanisms during the LEEFT are also reviewed.

Keywords： Water treatment     Nanotechnology     Pathogen inactivation     Electroporation     Nanowire     Chemical-free    

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The inactivation of bacteriophages MS2 and PhiX174 by nanoscale zero-valent iron: Resistance difference

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 8, doi: 10.1007/s11783-022-1529-4

Abstract:

• The resistance of phage PhiX174 to nZVI was much stronger than that of MS2.

Keywords： Nanoscale zero-valent iron (nZVI)     MS2     PhiΧ174     Resistance     Inactivation     Pathogenic microorganisms    

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Bacteria inactivation by sulfate radical: progress and non-negligible disinfection by-products

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 3, doi: 10.1007/s11783-023-1629-9

Abstract:

● Status of inactivation of pathogenic microorganisms by SO4

Keywords： Sulfate radicals     Disinfection by-products     Inactivation mechanisms     Bacterial inactivation     Water disinfection    

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Bacterial inactivation, DNA damage, and faster ATP degradation induced by ultraviolet disinfection

Chao Yang, Wenjun Sun, Xiuwei Ao

Frontiers of Environmental Science & Engineering 2020, Volume 14, Issue 1, doi: 10.1007/s11783-019-1192-6

Abstract: • Long amplicon is more effective to test DNA damage induced by UV. • ATP in bacteria does not degrade instantly but does eventually after UV exposure. • After medium pressure UV exposure, ATP degraded faster. The efficacy of ultraviolet (UV) disinfection has been validated in numerous studies by using culture-based methods. However, the discovery of viable but non-culturable bacteria has necessitated the investigation of UV disinfection based on bacterial viability parameters. We used quantitative polymerase chain reaction (qPCR) to investigate DNA damage and evaluated adenosine triphosphate (ATP) to indicate bacterial viability. The results of qPCR effectively showed the DNA damage induced by UV when using longer gene amplicons, in that sufficiently long amplicons of both 16S and gadA indicated that the UV induced DNA damages. The copy concentrations of the long amplicons of 16S and gadA decreased by 2.38 log/mL and 1.88 log/mL, respectively, after exposure to 40 mJ/cm2 low-pressure UV. After UV exposure, the ATP level in the bacteria did not decrease instantly. Instead it decreased gradually at a rate that was positively related to the UV fluence. For low-pressure UV, this rate of decrease was slow, but for medium pressure UV, this rate of decrease was relatively high when the UV fluence reached 40 mJ/cm2. At the same UV fluence, the ATP level in the bacteria decreased at a faster rate after exposure to medium-pressure UV.

Keywords： UV disinfection     DNA damage     qPCR     ATP    

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Inactivation and risk control of pathogenic microorganisms in municipal sludge treatment: A review

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 6, doi: 10.1007/s11783-021-1504-5

Abstract:

• Diversity and detection methods of pathogenic microorganisms in sludge.

Keywords： Sludge treatment     Pathogenic microorganisms     Inactivation mechanisms     Exposure risks     Land application    

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Response of bioaerosol cells to photocatalytic inactivation with ZnO and TiO impregnated onto Perlite

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 3, doi: 10.1007/s11783-020-1335-9

Abstract:

•ZnO/Perlite inactivated 72% of bioaerosols in continuous gas phase.

Keywords： Immobilized catalysts     Continuous flow     Photocatalysis     Bioaerosols     Cytotoxicity     Inactivation mechanism    

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heterostructured g-CN/Bi-TiO floating photocatalyst with enhanced charge carrier separation for photocatalytic inactivation

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 6, doi: 10.1007/s11783-021-1417-3

Abstract:

• Bi doping in TiO2 enhanced the separation of photo-generated electron-hole.

Keywords： Bi doping     Visible light     Algal removal     Charge carrier separation    

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spp., foodborne pathogens threatening neonates and infants

Qiming CHEN, Yang ZHU, Zhen QIN, Yongjun QIU, Liming ZHAO

Frontiers of Agricultural Science and Engineering 2018, Volume 5, Issue 3,   Pages 330-339 doi: 10.15302/J-FASE-2018208

Abstract:

Cronobacter spp. (formerly Enterobacter sakazakii) are special foodborne pathogens. Cronobacter infection can cause necrotizing enterocolitis, sepsis and meningitis in all age groups, especially neonates and infants, with a high fatality of up to 80%, although the infection is rare. Outbreaks of Cronobacter infection are epidemiologically proven to be associated with contaminated powdered infant formula (PIF). Cronobacter spp. can resist dry environments and survive for a long period in food with low water activity. Therefore, Cronobacter spp. have become serious pathogens of neonates and infants, as well as in the dairy industry. In this review, we present the taxonomy, pathogenesis, resistance, detection and control of Cronobacter spp.

Keywords： desiccation resistance     pathogen control     pathogen detection     powdered infant formula    

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Systems understanding of plant–pathogen interactions through genome-wide protein–protein interaction

Hong LI,Ziding ZHANG

Frontiers of Agricultural Science and Engineering 2016, Volume 3, Issue 2,   Pages 102-112 doi: 10.15302/J-FASE-2016100

Abstract: Plants are frequently affected by pathogen infections.(e.g., genomics, proteomics and transcriptomics) has provided a great opportunity to explore plant–pathogenThen, we focus on reviewing the progress in genome-wide PPI networks related to plant–pathogen interactions, including pathogen-centric PPI networks, plant-centric PPI networks and interspecies PPI networks betweenWe anticipate genome-wide PPI network analysis will provide a clearer understanding of plant–pathogen

Keywords： plant–pathogen interactions     systems biology     omics     plant immunity     protein–protein interaction     network    

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Selective targeted adsorption and inactivation of antibiotic-resistant bacteria by Cr-loaded mixed metal

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 6, doi: 10.1007/s11783-021-1502-7

Abstract:

• LDHs and MMOs was synthesized by ultrasound-assisted one-step co-precipitation.

Keywords： Heavy metal adsorption     Magnetic hydrotalcite     ARBs removal     Cr(VI)-MMOs combined antibacterial activity    

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PathogenTrack and Yeskit: tools for identifying intracellular pathogens from single-cell RNA-sequencing datasets as illustrated by application to COVID-19

Frontiers of Medicine 2022, Volume 16, Issue 2,   Pages 251-262 doi: 10.1007/s11684-021-0915-9

Abstract: In addition, we established an R package named Yeskit to import, integrate, analyze, and interpret pathogen

Keywords： scRNA-seq     intracellular pathogen     microbe     COVID-19     SARS-CoV-2    

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Clinical manifestations and pathogen characteristics in children admitted for suspected COVID-19

Xiaofang Cai, Hanlan Jiang, Simin Zhang, Shengying Xia, Wenhui Du, Yaoling Ma, Tao Yu, Wenbin Li

Frontiers of Medicine 2020, Volume 14, Issue 6,   Pages 776-785 doi: 10.1007/s11684-020-0820-7

Abstract: Notably, no pathogen was detected in 43 (44.3%) patients.The most frequently detected pathogen was (29, 29.9%). One patient with confirmed COVID 19 died.

Keywords： coronavirus disease 2019     pediatrics     emergency     retrospective investigation     severe acute respiratory syndrome coronavirus 2    

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Four kinds of capping materials for controlling phosphorus and nitrogen release from contaminated sediment using a static simulation experiment

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 3, doi: 10.1007/s11783-021-1463-x

Abstract:

• Lanthanum modified bentonite (LMB) can effectively absorb phosphorus (P).

Keywords： Sediment     Eutrophication     Thin-layer capping     Phosphorus     Nitrogen     Aluminum-based P-inactivation agent    

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Composition, dispersion, and health risks of bioaerosols in wastewater treatment plants: A review

Yunping Han, Lin Li, Ying Wang, Jiawei Ma, Pengyu Li, Chao Han, Junxin Liu

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 3, doi: 10.1007/s11783-020-1330-1

Abstract: Abstract • Bioaerosols are produced in the process of wastewater biological treatment. • The concentration of bioaerosol indoor is higher than outdoor. • Bioaerosols contain large amounts of potentially pathogenic biomass and chemicals. • Inhalation is the main route of exposure of bioaerosol. • Both the workers and the surrounding residents will be affected by the bioaerosol. Bioaerosols are defined as airborne particles (0.05–100 mm in size) of biological origin. They are considered potentially harmful to human health as they can contain pathogens such as bacteria, fungi, and viruses. This review summarizes the most recent research on the health risks of bioaerosols emitted from wastewater treatment plants (WWTPs) in order to improve the control of such bioaerosols. The concentration and size distribution of WWTP bioaerosols; their major emission sources, composition, and health risks; and considerations for future research are discussed. The major themes and findings in the literature are as follows: the major emission sources of WWTP bioaerosols include screen rooms, sludge-dewatering rooms, and aeration tanks; the bioaerosol concentrations in screen and sludge-dewatering rooms are higher than those outdoors. WWTP bioaerosols contain a variety of potentially pathogenic bacteria, fungi, antibiotic resistance genes, viruses, endotoxins, and toxic metal(loid)s. These potentially pathogenic substances spread with the bioaerosols, thereby posing health risks to workers and residents in and around the WWTP. Inhalation has been identified as the main exposure route, and children are at a higher risk of this than adults. Future studies should identify emerging contaminants, establish health risk assessments, and develop prevention and control systems.

Keywords： Wastewater treatment plant     Bioaerosols     Pathogen     Dispersion     Risk assessment    

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Pathogen evolution, prevention/control strategy and clinical features of COVID-19: experiences from China

Frontiers of Medicine doi: 10.1007/s11684-023-1043-5

Abstract: Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) was reported at the end of 2019 as a worldwide health concern causing a pandemic of unusual viral pneumonia and many other organ damages, which was defined by the World Health Organization as coronavirus disease 2019 (COVID-19). The pandemic is considered a significant threat to global public health till now. In this review, we have summarized the lessons learnt during the emergence and spread of SARS-CoV-2, including its prototype and variants. The overall clinical features of variants of concern (VOC), heterogeneity in the clinical manifestations, radiology and pathology of COVID-19 patients are also discussed, along with advances in therapeutic agents.

Keywords： coronavirus disease 2019     SARS-CoV-2     epidemiology     clinical features    

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Title Author Date Type Operation

Locally enhanced electric field treatment (LEEFT) for water disinfection

Jianfeng Zhou, Ting Wang, Cecilia Yu, Xing Xie

Journal Article

The inactivation of bacteriophages MS2 and PhiX174 by nanoscale zero-valent iron: Resistance difference

Journal Article

Bacteria inactivation by sulfate radical: progress and non-negligible disinfection by-products

Journal Article

Bacterial inactivation, DNA damage, and faster ATP degradation induced by ultraviolet disinfection

Chao Yang, Wenjun Sun, Xiuwei Ao

Journal Article

Inactivation and risk control of pathogenic microorganisms in municipal sludge treatment: A review

Journal Article

Response of bioaerosol cells to photocatalytic inactivation with ZnO and TiO impregnated onto Perlite

Journal Article

heterostructured g-CN/Bi-TiO floating photocatalyst with enhanced charge carrier separation for photocatalytic inactivation

Journal Article

spp., foodborne pathogens threatening neonates and infants

Qiming CHEN, Yang ZHU, Zhen QIN, Yongjun QIU, Liming ZHAO

Journal Article

Systems understanding of plant–pathogen interactions through genome-wide protein–protein interaction

Hong LI,Ziding ZHANG

Journal Article

Selective targeted adsorption and inactivation of antibiotic-resistant bacteria by Cr-loaded mixed metal

Journal Article

PathogenTrack and Yeskit: tools for identifying intracellular pathogens from single-cell RNA-sequencing datasets as illustrated by application to COVID-19

Journal Article

Clinical manifestations and pathogen characteristics in children admitted for suspected COVID-19

Xiaofang Cai, Hanlan Jiang, Simin Zhang, Shengying Xia, Wenhui Du, Yaoling Ma, Tao Yu, Wenbin Li

Journal Article

Four kinds of capping materials for controlling phosphorus and nitrogen release from contaminated sediment using a static simulation experiment

Journal Article

Composition, dispersion, and health risks of bioaerosols in wastewater treatment plants: A review

Yunping Han, Lin Li, Ying Wang, Jiawei Ma, Pengyu Li, Chao Han, Junxin Liu

Journal Article

Pathogen evolution, prevention/control strategy and clinical features of COVID-19: experiences from China

Journal Article