Article
Engineering, Environmental
Joao Gomes, Fatima Jesus, Eva Domingues, Fernando Goncalves, Joana Luisa Pereira, Rui C. Martins
Summary: This study aimed at investigating the mechanism of photocatalytic oxidation for pharmaceutical and personal care product pollutants, and their environmental impact. The results showed that while photocatalytic oxidation could effectively degrade pollutants, it also had the potential to form toxic by-products, raising concerns about environmental toxicity.
JOURNAL OF WATER PROCESS ENGINEERING
(2021)
Article
Biochemistry & Molecular Biology
Ilaria Berruti, Samira Nahim-Granados, Maria Jesus Abeledo-Lameiro, Isabel Oller, Maria Inmaculada Polo-Lopez
Summary: The study demonstrated that Sulfate Radical-based Advanced Oxidation Processes are effective for simultaneous disinfection and decontamination of urban wastewater, achieving significant removal of specific bacteria and pharmaceutical residues.
Article
Food Science & Technology
Mauro D. D. Garcia, Maria J. Ruiz, Luis M. M. Medina, Roberto Vidal, Nora L. L. Padola, Analia I. Etcheverria
Summary: The objective of this study was to characterize six colicinogenic Escherichia coli strains and test their inhibitory activity against STEC O157:H7. The results showed that these strains and their colicins have inhibitory activity against STEC O157:H7. PCR and genome sequencing identified various colicins and microcins in these strains, and no genes coding for stx1 and stx2 were detected. The results suggest that colicins could be a potential alternative for reducing the presence of STEC O157:H7.
Article
Agriculture, Dairy & Animal Science
Tao Yang, Zhenghui Wang, Yang Song, Xinyan Yang, Sihan Chen, Shiqian Fu, Xue Qin, Wei Zhang, Chaoxin Man, Yujun Jiang
Summary: A smartphone-based colorimetric aptasensor was developed for the detection of E. coli O157:H7 in milk, showing good reproducibility with no cross-reaction for other bacteria. The sensor could detect a concentration of 8.43 x 10^3 cfu/mL of E. coli O157:H7 in pure culture and 5.24 x 10^2 cfu/mL in artificially contaminated milk after 1 hour of incubation.
JOURNAL OF DAIRY SCIENCE
(2021)
Article
Chemistry, Analytical
Zhihua Li, Xue Zhang, Haishan Qi, Xiaowei Huang, Jiyong Shi, Xiaobo Zou
Summary: A renewable electrochemical biosensor based on mussel-inspired adhesive protein was developed for the detection of Escherichia coli O157:H7. The biosensor showed excellent repeatability and sensitivity, with a wide linear range and a low detection limit. It demonstrated good performance in detecting E. coli O157:H7 in seafood samples.
SENSORS AND ACTUATORS B-CHEMICAL
(2022)
Article
Engineering, Chemical
Shizong Wang, Jianlong Wang
Summary: In this study, bimetallic and nitrogen co-doped biochar was prepared for peroxymonosulfate (PMS) activation to degrade emerging contaminants. The bimetallic-doped biochar showed much higher catalytic activity compared to single metal-doped biochar. The FeCo-BC exhibited higher catalytic activity than FeCu-BC.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Food Science & Technology
Man-Seok Choi, Eun Bi Jeon, Ji Yoon Kim, Eun Ha Choi, Jun Sup Lim, Jinsung Choi, Shin Young Park
Summary: The efficacy of dielectric barrier discharge (DBD) plasma treatment for reducing non-pathogenic Escherichia coli and E. coli O157:H7 in oysters was studied. Exposure to DBD plasma for at least 60 minutes resulted in significant reductions in both types of bacteria, with minimal impact on the glycogen content and texture of the oysters. This non-thermal intervention could be a promising method for improving the safety of fresh oysters.
LWT-FOOD SCIENCE AND TECHNOLOGY
(2022)
Article
Biotechnology & Applied Microbiology
Smriti Shringi, Haiqing Sheng, Andrew A. Potter, Scott A. Minnich, Carolyn J. Hovde, Thomas E. Besser
Summary: Oral immunization with live stx-negative LEE+ E. coli O157:H7 in cattle reduces the colonization of wild-type E. coli O157:H7 strains at the rectoanal junction and shortens the shedding duration.
APPLIED AND ENVIRONMENTAL MICROBIOLOGY
(2021)
Review
Engineering, Environmental
Henrique Sousa, Catia A. Sousa, Lucia C. Simoes, Manuel Simoes
Summary: The study reviews the advantages and advances of using microalgae for wastewater treatment, highlighting the potential of using microalgae-bacteria biofilms for CECs removal and further biomass utilization for third-generation biofuel production.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Agriculture, Dairy & Animal Science
Veronica Otero, Jesus A. Santos, Jose M. Rodriguez-Calleja, Maria-Luisa Garcia-Lopez
Summary: This study assessed the survival of two wild Shiga toxin-producing Escherichia coli strains in ewe milk under different storage conditions and examined the fate of the O157 strain during the manufacture and ripening of Zamorano cheese. The study found that the O157 strain was more susceptible to cold stress but a better competitor against the milk's natural microbiota. The presence of O157:H7 in Zamorano cheese manufactured from contaminated raw ewe milk could pose a public health concern.
JOURNAL OF DAIRY SCIENCE
(2022)
Article
Environmental Sciences
Linyan Zhu, Suhana Chattopadhyay, Oluwasegun Elijah Akanbi, Steven Lobo, Suraj Panthi, Leena Malayil, Hillary A. Craddock, Sarah M. Allard, Manan Sharma, Kalmia E. Kniel, Emmanuel F. Mongodin, Pei C. Chiu, Amir Sapkota, Amy R. Sapkota
Summary: This study evaluated the efficacy of biochar (BC) and zero-valent iron (ZVI) as filter media for reducing contaminants in wastewater. The results showed that BC with ZVI and Ag-BC with ZVI were effective in removing pollutants from wastewater without releasing silver ions, making them low-cost options for decentralized wastewater treatment.
Review
Environmental Sciences
Dariusz Kiejza, Urszula Kotowska, Weronika Polinska, Joanna Karpinska
Summary: There has been a growing interest in using advanced oxidation processes for water and wastewater decontamination, with new oxidants such as peracetic acid widely utilized. The degradation of organic compounds involves radicals derived from the activation of peracids, resulting in the formation of products of lower mass, less toxic, and more susceptible to biodegradation. The activation methods and matrix composition have a significant impact on the efficiency of contamination removal using peracids.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Biophysics
Chang Lu, Longhua Tang, Fei Gao, Yuzhi Li, Juewen Liu, Jinkai Zheng
Summary: This study successfully synthesized anisotropic dumbbell-like Au-Pt nanoparticles with excellent catalytic and anti-bacterial activities through a DNA-programming strategy, which were applied in the detection and eradication of pathogenic bacteria. The research also discovered the DNA sequence-dependent growth of bimetallic nanoparticles and highlighted the high nanozyme catalytic activity and photothermal conversion efficiency of the Au-Pt nanoparticles.
BIOSENSORS & BIOELECTRONICS
(2021)
Article
Chemistry, Multidisciplinary
Sarah H. Klass, Laura E. Sofen, Zachary F. Hallberg, Tahoe A. Fiala, Alexandra Ramsey, Nicholas S. Dolan, Matthew B. Francis, Ariel L. Furst
Summary: Pathogenic E. coli strains are a significant threat to public health, causing both foodborne illnesses and urinary tract infections. By using a rapid bioconjugation reaction and electrochemical impedance spectroscopy, we can selectively capture and accurately quantify these pathogenic microbes on a disposable gold electrode.
CHEMICAL COMMUNICATIONS
(2021)
Article
Chemistry, Analytical
Ting Zheng, Xianming Li, Ya-Ni Xie, Bin Yang, Peng Wu
Summary: This study proposes a dual-gene RPA-LFA method to selectively detect E. coli O157:H7 by recognizing target amplicons and eliminating false positives. The assay shows high sensitivity and specificity for the detection of this pathogen.
ANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Applied
Melina Roccamante, Irene Salmeron, Ana Ruiz, Isabel Oller, Sixto Malato
Article
Engineering, Environmental
A. Ruiz-Delgado, P. Plaza-Bolanos, I Oller, S. Malato, A. Aguera
JOURNAL OF HAZARDOUS MATERIALS
(2020)
Article
Environmental Sciences
I. Salmeron, I. Oller, S. Malato
SCIENCE OF THE TOTAL ENVIRONMENT
(2020)
Article
Engineering, Environmental
Giusy Cerreta, Melina A. Roccamante, Patricia Plaza-Bolanos, Isabel Oller, Ana Aguera, Sixto Malato, Luigi Rizzo
Article
Engineering, Environmental
A. Cabrera-Reina, S. Miralles-Cuevas, I Oller, J. A. Sanchez-Perez, S. Malato
CHEMICAL ENGINEERING JOURNAL
(2020)
Article
Environmental Sciences
Ana Ruiz-Delgado, Melina Antonella Roccamante, Sixto Malato, Ana Aguera, Isabel Oller
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2020)
Article
Chemistry, Physical
Samira Nahim-Granados, Gracia Rivas-Ibanez, Jose Antonio Sanchez Perez, Isabel Oller, Sixto Malato, Maria Inmaculada Polo-Lopez
APPLIED CATALYSIS B-ENVIRONMENTAL
(2020)
Article
Environmental Sciences
I Salmeron, I Oller, S. Malato
Summary: In the past two decades, the application of electrochemical processes for wastewater treatment has significantly increased. However, most studies have focused on lab-scale systems testing. This study aims to evaluate the performance of electrochemical treatments in actual matrices, showing higher degradation rates in more complex and saline matrices.
Article
Biochemistry & Molecular Biology
Ilaria Berruti, Samira Nahim-Granados, Maria Jesus Abeledo-Lameiro, Isabel Oller, Maria Inmaculada Polo-Lopez
Summary: The study demonstrated that Sulfate Radical-based Advanced Oxidation Processes are effective for simultaneous disinfection and decontamination of urban wastewater, achieving significant removal of specific bacteria and pharmaceutical residues.
Article
Chemistry, Multidisciplinary
Isabel Oller, Sixto Malato
Summary: The application of photo-Fenton technology in wastewater treatment is a popular research topic, especially in countries with water scarcity and abundant sunlight. Heterogeneous photo-Fenton processes working at neutral pH have gained attention, but designing efficient catalysts remains a major challenge.
CURRENT OPINION IN GREEN AND SUSTAINABLE CHEMISTRY
(2021)
Article
Chemistry, Physical
P. Soriano-Molina, S. Miralles-Cuevas, I Oller, J. L. Garcia Sanchez, J. A. Sanchez Perez
Summary: The solar photo-Fenton process with ferric nitrilotriacetate has potential for removing contaminants of emerging concern (CECs) from municipal effluents, but understanding the effects of temperature and photon absorption on the reaction mechanism is crucial. Experimental results show that increasing liquid depth can improve treatment capacity under certain conditions, providing important knowledge for photoreactor design and continuous flow operation.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Engineering, Environmental
Alejandro Cabrera-Reina, Marina Aliste, Maria Inmaculada Polo-Lopez, Sixto Malato, Isabel Oller
Summary: This study focuses on understanding the interactions between a complex water matrix and the process of removing a mixture of microcontaminants (acetamiprid, carbamazepine, and caffeine) using the solar/Fe3+-EDDS/persulfate process. The effects of sulfates, nitrates, bicarbonates, and chlorides on the process were assessed in different synthetic and actual water samples. The results showed that bicarbonates and chlorides have a significant impact on the efficiency of microcontaminant removal in complex water matrices, while dissolved organic matter had a negative effect on removal efficiency depending on its concentration and composition.
Article
Engineering, Environmental
Joao Gomes, Melina Roccamante, Sandra Contreras, Francesc Medina, Isabel Oller, Rui C. Martins
Summary: The application of photocatalysis, single, catalytic and photocatalytic ozonation in treating a mixture of insecticides showed that the reactor's diameter has a significant impact on process performance, and the variation in tube diameter greatly affects the required amount of catalyst.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)