Article
Microbiology
Sinchan Banerjee, Anna Bedics, Erika Toth, Balazs Kriszt, Andre R. Soares, Karoly Boka, Andras Tancsics
Summary: Members of the genus Pseudomonas are widely distributed in hydrocarbon contaminated environments due to their ability to degrade various petroleum hydrocarbons. In this study, a novel bacterium designated as MAP12(T) was isolated, which showed efficient degradation of xylene under both aerobic and microaerobic conditions. The analysis of 16S rRNA gene sequence and genome confirmed that MAP12(T) represents a new species of the genus Pseudomonas with distinct characteristics.
FRONTIERS IN MICROBIOLOGY
(2022)
Article
Biotechnology & Applied Microbiology
Flora Szentgyorgyi, Tibor Benedek, Dzsenifer Fekete, Andras Tancsics, Peter Harkai, Balazs Kriszt
Summary: In this study, a novel bacterial consortium consisting of Variovorax paradoxus and Pseudomonas veronii isolates was developed for the efficient biodegradation of BTEX compounds. The consortium showed promising results in both laboratory and field conditions, indicating its potential as a bioremediation agent.
Article
Environmental Sciences
Saba Miri, Jose Alberto Espejel Perez, Satinder Kaur Brar, Tarek Rouissi, Richard Martel
Summary: In this study, cold-active ToMO and C1,2D were produced using a newly isolated psychrophilic Pseudomonas S2TR-14 in a minimal salt medium supplemented with crustacean waste and different concentrations of used motor oil. Immobilized enzymes on micro/nano biochar-chitosan matrices showed high enzyme production and increased storage stability, leading to efficient degradation of BTEX in contaminated groundwater and soil. Integrated use of microbiochar and nanobiochar with chitosan for co-immobilization of ToMO and C1,2D can be a potential way to remove petroleum hydrocarbons with higher efficiency from contaminated sites.
ENVIRONMENTAL POLLUTION
(2021)
Article
Environmental Sciences
Gurpreet Kaur, Joanna Lecka, Magdalena Krol, Satinder Kaur Brar
Summary: This study examined the feasibility of using geothermal heating to enhance the bioremediation of BTEX pollutants. Bacterial strains with high degradation ability were isolated from soil at different depths and identified as novel BTEX-degrading strains, except for Bacillus subtilis. Results showed that higher temperatures can stimulate biodegradation, suggesting that geothermal heating could be a potential stimulant for in-situ bioremediation.
ENVIRONMENTAL POLLUTION
(2023)
Article
Environmental Sciences
Yuan Chen, Tong Zhang, Shuai Luo, Yurong Zhang, Yuanyuan Liu
Summary: This study investigates the fate of xylene spilled into soil and reveals its adsorption characteristics and influencing factors, providing scientific guidance for pollution control and risk assessment of BTEX contaminated sites.
WATER AIR AND SOIL POLLUTION
(2022)
Article
Engineering, Environmental
Mohammad Faisal Umar, Mohd Rafatullah, Syed Zaghum Abbas, Mohamad Nasir Mohamad Ibrahim, Norli Ismail
Summary: The study found that xylene-contaminated wastewater can be biodegraded through a benthic microbial fuel cell, with a maximum biodegradation efficiency of 87.8%. After 30 days of operation, the specific capacitance of the BMFC was 0.124 F/g.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Agricultural Engineering
Saba Miri, Seyyed Mohammadreza Davoodi, Satinder Kaur Brar, Tarek Rouissi, Yi Sheng, Richard Martel
Summary: Research on biodegradation methods for sites contaminated by petroleum hydrocarbons in cold-climate regions has shown that two cold-adapted pseudomonas strains secrete enzymes that can degrade p-xylene rapidly at low temperatures, shortening the bioremediation duration effectively by utilizing their synergistic action.
BIORESOURCE TECHNOLOGY
(2021)
Article
Engineering, Environmental
Ernestina Hauptfeld, Jordi Pelkmans, Terry T. Huisman, Armin Anocic, Basten L. Snoek, F. A. Bastiaan von Meijenfeldt, Jan Gerritse, Johan van Leeuwen, Gert Leurink, Arie van Lit, Ruud van Uffelen, Margot C. Koster, Bas E. Dutilh
Summary: Biodegradation is a sustainable and cost-effective solution for groundwater pollution. In this study, the microbial populations involved in the biodegradation of poly-contaminants in a heavily contaminated groundwater pipeline were investigated. The microbial communities were analyzed using genome-resolved metagenomic analysis, revealing the changing microbial communities in a highly effective groundwater treatment system.
Article
Engineering, Environmental
Ernestina Hauptfeld, Jordi Pelkmans, Terry T. Huisman, Armin Anocic, Basten L. Snoek, F. A. Bastiaan von Meijenfeldt, Jan Gerritse, Johan van Leeuwen, Gert Leurink, Arie van Lit, Ruud van Uffelen, Margot C. Koster, Bas E. Dutilh
Summary: This study investigates the microbial communities involved in the biodegradation of poly-contaminants in a groundwater treatment system. The genome-resolved metagenomic analysis revealed significant differences in microbial populations between the plant and the contaminated park groundwater. The findings provide valuable insights into the efficacy of microbial biodegradation in treating complex groundwater contaminants.
Letter
Engineering, Environmental
Juan Guzman
Summary: The authors isolated a polystyrene-degrading bacterium from the gut of a superworm and identified it as Pseudomonas aeruginosa DSM 50071. However, claiming that the isolated strain is the same as the original DSM 50071 strain is misleading. Additional steps should be taken to label and identify the strain accurately.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Multidisciplinary Sciences
Saurabh Gangola, Samiksha Joshi, Saurabh Kumar, Barkha Sharma, Anita Sharma
Summary: The study identified a bacterial isolate 2D with high tolerance and effective biodegradation rate for multiple pesticides. Analysis showed the highest similarity of 2D with Bacillus cereus, and the study on laccase under pesticide stress conditions suggested significantly increased enzyme production.
Article
Biotechnology & Applied Microbiology
Tian Liu, Shilin Yang, Zixian Wu, Yufei Cai, Jiawei Zhou, Mingjun Liao
Summary: A flurbiprofen-degrading strain LY.1, identified as Pseudomonas aeruginosa (PA), was isolated from the Xunsi River in Wuhan City, China. LY.1 strain exhibited the ability to grow in flurbiprofen-containing medium as the sole carbon source and degrade flurbiprofen into 3-fluoro-4(1-ethylcarboxy) phenylpropionic acid (FCB). Optimal growth conditions for LY.1 strain were found to be at temperatures ranging from 25 to 40 degrees C, pH 6-8, and substrate concentrations between 100 and 800 mg/L.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2023)
Article
Microbiology
Yinhu Jiang, Fuyin Zhang, Siqiong Xu, Pan Yang, Xiao Wang, Xuan Zhang, Qing Hong, Jiguo Qiu, Cuiwei Chu, Jian He
Summary: A new quinoline-degrading bacterial strain Rhodococcus sp. JH145 was isolated, which showed excellent quinoline biodegradation ability even under high-salt conditions.
Article
Polymer Science
Mario Ivan Penas, Miryam Criado-Gonzalez, Antxon Martinez de Ilarduya, Araceli Flores, Jean-Marie Raquez, Rosica Mincheva, Alejandro J. Mueller, Rebeca Hernandez
Summary: This study presents two strategies to regulate the enzymatic degradation of PBS films. One is to add multilayer coats of polysaccharide alginate and chitosan to the PBS films, and the other is to embed lipase-filled alginate particles in the PBS films. The results show that the number of protective coating layers and the amount of encapsulated enzyme affect the degradation extent of PBS films.
POLYMER DEGRADATION AND STABILITY
(2023)
Article
Genetics & Heredity
Michael O. Eze
Summary: This study successfully isolated a bacterial consortium capable of degrading diesel fuel hydrocarbons through successive enrichment of microorganisms, revealing the specific roles of different microbial populations and metabolic pathways in the degradation of BTEX. Metagenome analysis identified 105 putative coding DNA sequences responsible for BTEX activation and central metabolism, indicating the potential of the consortium for environmental remediation of petroleum hydrocarbons with approximately 70% biodegradation efficiency achieved in contaminated soils.
Article
Biophysics
Salah M. Tawfik, Mohamed R. Elmasry, Mirkomil Sharipov, Shavkatjon Azizov, Chang Hyun Lee, Yong-Ill Lee
BIOSENSORS & BIOELECTRONICS
(2020)
Article
Biochemical Research Methods
Shavkatjon Azizov, Mirkomil Sharipov, Jae-Min Lim, Salah M. Tawfik, Nuritdin Kattaev, Yong-Ill Lee
Summary: The study presents a novel microfluidic paper-based analytical device coupled with paper spray mass spectrometry for efficient and low-cost quantitative determination of C-18-ceramide as a prognostic biomarker. The device demonstrated high resistance to organic solvents and efficiency in sample analysis, achieving good recovery values in human serum samples. The method simplifies the experimental steps and operation process, allowing for the identification of subnanomolar concentrations of C-18-ceramide.
JOURNAL OF MASS SPECTROMETRY
(2021)
Review
Chemistry, Multidisciplinary
Salah M. Tawfik, Shavkatjon Azizov, Mohamed R. Elmasry, Mirkomil Sharipov, Yong-Ill Lee
Summary: Nanomicelles as drug carriers show potential in selective and efficient drug delivery, forming organized structures through self-assembly and releasing drugs in response to various stimuli. The properties of core and corona forming blocks determine the size and shape of nanomicelles.
Article
Biochemical Research Methods
Ji-Yeon Kim, Woo Hong Joo, Dong-Soo Shin, Yong-Ill Lee, Chin Fen Teo, Jae-Min Lim
Summary: This study expanded the quantitative glycomic toolbox by optimizing the MILPIG approach in baker's yeast, demonstrating the requirement for carbon-13 labeled glucose incorporation and method robustness. The quantitation of the inhibitory effect of the N-linked glycosylation inhibitor tunicamycin on the yeast glycan expression profile was also performed.
ANALYTICAL BIOCHEMISTRY
(2021)
Article
Polymer Science
Amr S. Ismail, Salah M. Tawfik, Amr H. Mady, Yong-Ill Lee
Summary: Nanocomposites of tungsten oxide (WO3) and zinc oxide (ZnO) enriched polyethylene sebacate (PES) were successfully prepared and characterized in this study. The nanocomposites showed promising electrical activity and antimicrobial effects against bacteria and fungi, indicating potential for use in various applications such as catalysis.
Article
Chemistry, Multidisciplinary
Ming Han, Yuwei Liu, Dong-Jin Qian, Yong-Ill Lee, Hong-Guo Liu
Summary: The study developed a modified liquid/liquid interfacial epitaxial growth method to successfully prepare large-area ultrathin ordered films. The formation of the ultrathin films was found to be a result of the synergistic effects of various factors, providing a new approach for fabricating larger-area thin films of amphiphilic molecules.
Article
Chemistry, Multidisciplinary
Yuwei Liu, Xiaona Cui, Yong-Ill Lee, Hong-Guo Liu
Summary: This study systematically investigated the self-assembly behavior of polystyrene-block-poly(2-vinylpyridine) at the liquid/liquid interface. Different primary morphologies of aggregates were obtained depending on the molecular structure of the block copolymers and the amount of chloroauric acid. The findings provide valuable insights into the self-assembly behavior of block copolymers at interfaces and offer a facile approach for fabricating functional structures.
Review
Chemistry, Multidisciplinary
Zayakhuu Gerelkhuu, Yong-Ill Lee, Tae Hyun Yoon
Summary: This review describes the potential applications of upconversion nanomaterials (UCNMs) in biomedical fields, including drug delivery, bioimaging, biosensing, and photodynamic therapy. The mechanisms, synthesis methods, and biological toxicity of UCNMs are discussed, and the prospects for clinical applications are explored.
Article
Chemistry, Multidisciplinary
Seong-Soo Lee, Mirkomil Sharipov, Won June Kim, Yong-Ill Lee
Summary: Poly(ionic liquids) (PILs) have been widely used for CO2 capture due to their resemblance to ionic liquids and properties of polymers. In this study, the amine-functionalized poly(vinylimidazole)-based PIL (PVIm-NH2) was successfully prepared and characterized as a chemosensor for CO2 gas detection. The detection limit of PVIm-NH2 in the presence of triethylamine (TEA) was found to be 2.86 x 10-3 M with R2 = 0.9906. The mechanism of PVIm-NH2 generating N-heterocyclic carbenes (NHCs) in the presence of TEA and their reaction with CO2 gas to form a carboxylic acid was investigated. Structural modifications of PIL were also shown to make it a promising candidate for chemosensor applications.
Article
Biotechnology & Applied Microbiology
Salah M. Tawfik, Atef S. Kobisy, Emad A. Badr, Ahmed H. Elged, Yong-Ill Lee
Summary: Microbial corrosion caused by microorganisms in the petroleum industry is a significant problem that can have severe environmental and economic consequences. Therefore, the development of innovative nonionic porous antimicrobial materials with diverse hydrophobic conjugated motifs is highly desirable.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2023)
Article
Nanoscience & Nanotechnology
Phommachith Sonexai, Minh Van Nguyen, Bui The Huy, Yong -Ill Lee
Summary: The detection of harmful chemicals in the environment and for food safety is important, but traditional techniques are expensive and time-consuming. Surface-enhanced Raman spectroscopy (SERS) offers a powerful alternative for detecting low concentrations of chemical compounds and biomolecules. This study presents a reproducible method for producing Ag nanoparticles that can be used to create highly sensitive SERS substrates. The developed SERS substrate exhibits exceptional analytical performance and has the potential to be a valuable analytical tool for monitoring environmental contaminants.
BEILSTEIN JOURNAL OF NANOTECHNOLOGY
(2023)
Article
Chemistry, Analytical
Salah M. Tawfik, Ali A. Abd-Elaal, Yong-Ill Lee
Summary: The design of multifunctional sensors based on conjugated polythiophene-quantum dots shows promise for detecting Hg2+ and TATP. The sensor demonstrates good linear response to Hg2+ and TATP under optimized conditions.
Article
Materials Science, Multidisciplinary
Mirkomil Sharipov, Youngil Lee, Jinsol Han, Yong-Ill Lee
Summary: Stabilizing silver cations from reactive ink with PVP on HEC-modified paper induces the formation of silver metal nanoparticles, achieving uniform formation and high conductivity of silver nanoparticles. The modified paper prevents the formation of silver oxides and silver acetate salts, allowing for a lower curing temperature and high conductivity.
MATERIALS ADVANCES
(2021)
Article
Chemistry, Multidisciplinary
Pavithra V. Ravi, Daniel T. Thangadurai, Kasi Nehru, Yong Ill Lee, Devaraj Nataraj, Sabu Thomas, Nandakumar Kalarikkal, Jiya Jose
Article
Chemistry, Analytical
Bui The Huy, Nguyen Ngoc Nghia, Yong-Ill Lee
MICROCHEMICAL JOURNAL
(2020)
