Article
Microbiology
Abeer Al-Zubaidi, Chen-Yi Cheung, Gregory M. Cook, George Taiaroa, Valerie Mizrahi, J. Shaun Lott, Stephanie S. Dawes
Summary: This study demonstrates that partial depletion of RNase HI activity in Mycolicibacterium smegmatis leads to the accumulation of R-loops, and increases the sensitivity of the strains to multiple antibiotics. It also identifies four small molecules that inhibit recombinant RnhC activity and potentiate rifampicin activity, providing a potential approach for developing new antimycobacterial drugs.
ANTIMICROBIAL AGENTS AND CHEMOTHERAPY
(2022)
Article
Multidisciplinary Sciences
Pasupathy Saravanan, V. N. Azger Dusthackeer, R. S. Rajmani, B. Mahizhaveni, Christy R. Nirmal, Sam Ebenezer Rajadas, Neerupma Bhardwaj, C. Ponnuraja, Adhin Bhaskar, A. K. Hemanthkumar, Geetha Ramachandran, Srikanth P. Tripathy
Summary: The study synthesized a novel compound Rifaphenazine (RPZ) with potent anti-TB activity, which showed inhibitory effects on Mtb at low concentrations and demonstrated efficient bactericidal capabilities. Furthermore, RPZ exhibited non-cytotoxicity on human monocytic cells, indicating its potential as a new anti-TB drug candidate.
SCIENTIFIC REPORTS
(2021)
Article
Biochemistry & Molecular Biology
Victoria V. Shumyantseva, Tatiana V. Bulko, Elena G. Tikhonova, Maxim A. Sanzhakov, Alexey V. Kuzikov, Rami A. Masamrekh, Dmitry V. Pergushov, Felix H. Schacher, Larisa V. Sigolaeva
Summary: The electrochemical interactions of dsDNA with rifampicin (RF) and rifampicin encapsulated in phospholipid micelles (nanosome/rifampicin) (NRF) were studied. The study showed that the interaction of RF or NRF with dsDNA affected the oxidation signals of guanine and adenine. The binding constants and Gibbs free energy values indicated different modes of interaction between the drugs and dsDNA.
BIOELECTROCHEMISTRY
(2021)
Article
Microbiology
Meng-na Zhang, Xiao-ou Zhao, Qi Cui, Dao-mi Zhu, Muhammad Asif Wisal, Han-dong Yu, Ling-cong Kong, Hong-xia Ma
Summary: In this study, famotidine was found to enhance the antibacterial activity of rifamycin antibiotics against A. baumannii, acting as a potential antibiotic adjuvant. The discovery of novel applications for famotidine opens up possibilities for screening antibiotic adjuvants from guanidine-based molecules. The development of new antibiotic adjuvants is crucial due to the emergence of resistance in Gram-negative bacteria.
JOURNAL OF BACTERIOLOGY
(2023)
Editorial Material
Microbiology
Sakshi Agarwal, Babak Javid
Summary: This study investigates the development of antibiotic resistance in Mycobacterium tuberculosis, a globally important pathogen. The authors use a robotic transwell microtiter system and deep sequencing to study different subpopulations of the bacteria and find that resistance primarily arises from tolerant subpopulations, particularly the differentially detectable (DD) bacteria. This research highlights the role of minority bacterial subpopulations in the development of antibiotic resistance.
Article
Chemistry, Multidisciplinary
Hiroki Takamatsu, Tomonori Ohba
Summary: The interfaces of carbon materials, particularly graphene-related materials, play a crucial role in understanding molecular mechanisms. Analysis of water adsorption properties revealed that the hydrophobicity of graphane was unexpectedly higher than graphene, attributed to the different water orientation restrictions and structure differences between the two materials on a nanoscale roughness level.
Article
Engineering, Chemical
Flor R. Siperstein, Carlos Avendano, Jordan J. Ortiz, Alejandro Gil-Villegas
Summary: Analytic expressions for isosteric heats of adsorption are derived for commonly used isotherm models and a two-dimensional molecular equation of state based on the SAFT-VR approach. The predicted isosteric heat of adsorption exhibits strong variations in regions where experimental data is insufficient.
Article
Pharmacology & Pharmacy
Federica Rinaldi, Patrizia Nadia Hanieh, Simona Sennato, Federica De Santis, Jacopo Forte, Maurizio Fraziano, Stefano Casciardi, Carlotta Marianecci, Federico Bordi, Maria Carafa
Summary: Treatment of pulmonary infections caused by Mycobacterium abscessus is challenging due to the bacterium's natural resistance to antibiotics. Formulating rifampicin-loaded liposomes for lung delivery can help increase the local concentration of the drug and enhance its biological activity against intracellular mycobacteria. Overall, liposome formulation of rifampicin represents a promising strategy for combating Mycobacterium abscessus infections.
Article
Ecology
Samantha J. Mascuch, Alyssa Demko, Samson Viulu, Joape Ginigini, Katy Soapi, Paul Jensen, Julia Kubanek
Summary: Microbes produce natural products that can interact with each other and their environments, and these interactions can serve as a potential source of antibiotics. The biosynthesis of certain antibiotics can be induced by competing microbes. Competition among hosts can also affect the metabolic outputs of their microbiomes. This study discovered an interaction between two coral-associated bacteria, where one bacteria interfered with the antibiotic production of the other. This observation highlights the complex molecular dynamics among microbiome constituents.
Article
Environmental Sciences
Mysoon M. Al-Ansari, Hicham Benabdelkamel, Reem H. AlMalki, Anas M. Abdel Rahman, Eman Alnahmi, Afshan Masood, Soundharrajan Ilavenil, Ki Choon Choi
Summary: The study evaluated the potential of a biocatalyst strain for heavy metal removal and identified a bacterial strain suitable for such removal; it found that SBR could efficiently remove heavy metals from wastewater within 10 hours and also exhibited good removal efficacy for other pollutants in water.
ENVIRONMENTAL RESEARCH
(2021)
Article
Chemistry, Analytical
Soraya Bozorginia, Jalil Jaafari, Kamran Taghavi, Seyed Davoud Ashraf, Esmaeil Roohbakhsh, Dariush Naghipour
Summary: In this study, Pseudomonas putida biomass was used for the removal of ceftriaxone from aqueous solutions. The optimal conditions were determined, and the Freundlich adsorption isotherm model was found to fit the experimental data better.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY
(2023)
Article
Materials Science, Multidisciplinary
Ying Zhao, Jiao Liu, Min-Le Han, Guo-Ping Yang, Lu-Fang Ma, Yao-Yu Wang
Summary: Two new metal-organic frameworks (MOF 1 and MOF 2) with different structures were synthesized by assembling Ba(II) ions and two similar linkers. MOF 2 exhibited a higher density of active sites and Lewis acid sites, leading to a greater CO2 capture and separation capacity at 298 K compared to MOF 1.
Review
Engineering, Environmental
Chong Yang Chuah, Hongju Lee, Tae-Hyun Bae
Summary: This review focuses on the recent progress of nanoporous adsorbents developed for light hydrocarbon separation, which is classified into acetylene separation, alkene/alkane separation, and propyne separation. Adsorptive separation is considered a promising technique with lower energy consumption than conventional processes.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Multidisciplinary Sciences
Chandrahas Sahu, Shadanan Patel, Dharmendra Khokhar
Summary: Moisture sorption behavior and isosteric heat of sorption of extruded product were studied under different conditions. The equilibrium moisture content increased with water activity, and the GAB model was found to be the best fit. The net isosteric heat of sorption varied with sample moisture content.
Article
Thermodynamics
Bo Han, Anutosh Chakraborty
Summary: Metal organic frameworks (MOFs) are promising materials for achieving cooling, heating, and water desalination with zero or negligible carbon footprint. This article investigates the water adsorption and desorption characteristics of different functional group-assisted MOFs in the adsorption heat transformation (A-HT) process, and evaluates their performance in terms of cooling, heating, and desalination capacities.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2022)
Article
Energy & Fuels
Hocine Grabi, Wahiba Lemlikchi, Fazia Derridj, Safia Lemlikchi, Mohamed Trari
Summary: A potential biosorbent prepared from agricultural waste material, ash seed, was found to be effective and low-cost for removing anionic dye Cibacron Blue. The adsorbent was characterized and the adsorption experiments were carried out under optimal conditions. Results showed that the prepared material has potential for removing CB dye from industrial effluents.
BIOMASS CONVERSION AND BIOREFINERY
(2023)
Article
Materials Science, Ceramics
Gharib Rekhila, Kamel Cherifi, Yassine Bessekhouad, Mohamed Trari
Summary: In this study, the solid solution NiFe2-xMnxO4 was synthesized using the sol-gel method, and its physical properties were investigated for the first time. The thermal analysis revealed that phase transformation occurred above 400 degrees C, with the oxides crystallizing into an inverse cubic spinel structure. The UV-Visible spectroscopy showed both direct and indirect optical transitions due to crystal field splitting of 3d metals, with the saturation magnetization varying between 0.5 and 20 emu/g. The electrical conductivity exhibited conduction mechanism by low polaron hopping with variable activation energies, and the hole densities were determined electrochemically from capacitance measurements.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2021)
Article
Energy & Fuels
Badreddine Belhamdi, Hamza Laksaci, Chemseddine Belabed, Zoulikha Merzougui, Salim Boudiaf, Rachid Tir, Mohamed Trari
Summary: This research explored the use of activated carbon (AC-RS) prepared from kernel oil treatment residues of Argania Spinosa for the removal of amoxicillin (AMX) from water. The AC-RS showed high adsorption capacity for AMX and can be reused multiple times, making it a potential candidate for wastewater treatment.
BIOMASS CONVERSION AND BIOREFINERY
(2023)
Article
Chemistry, Physical
C. Belabed, A. Tab, F. Moulai, O. Cernohorsky, S. Boudiaf, N. Benrekaa, J. Grym, M. Trari
Summary: The research reports a hetero-junction organic/inorganic structure consisting of PANI and ZnO NRs, with their properties investigated using various testing methods. The experimental results show that this hetero-junction photocatalyst exhibits higher photoactivity and stability in the photocatalytic degradation of Orange II.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Physical
C. Belabed, A. Tab, B. Bellal, B. Belhamdi, N. Benrakaa, M. Trari
Summary: This study focuses on the preparation of the Pani-ZnONps hetero-junction for photo catalytic water reduction into hydrogen. The results show that Pani-ZnONps exhibits good photo catalytic performance under visible light illumination and demonstrates excellent reusability.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Engineering, Electrical & Electronic
N. Benreguia, A. Abdi, O. Mahroua, M. Trari
Summary: CuMnO2 synthesized by sol-gel method exhibits stable p-type conductivity and efficient photocatalytic performance under visible light illumination in neutral solution.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Engineering, Electrical & Electronic
S. Tartaya, R. Bagtache, A. M. Djaballah, M. Ozacar, M. Trari
Summary: The synthesis and characterization of Na3V2O2(PO4)(2)F crystal structure, material properties, and its potential application in photodegradation of dyes were investigated. The results indicate its potential for efficient photodegradation as a photocatalyst.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Optics
R. Laouici, S. Douafer, H. Lahmar, G. Rekhila, M. Trari, M. Benamira
Summary: La2NiO4 synthesized by nitrate route shows positive results as a catalyst for hydrogen photo-evolution, with a band gap of 1.51 eV and a p-type semiconductor nature. The hetero-system of La2NiO4/SnO2 exhibits higher H-2 evolution rate compared to pure La2NiO4, attributed to efficient electron injection and improved water reduction. High performance is achieved at pH 13 with S2O3-3 as a hole scavenger.
Article
Optics
S. Cherif, H. Yazid, G. Rekhila, Z. Sadaoui, M. Trari
Summary: ZnO nano powder with crystallite sizes in the range of 18-29 nm was synthesized by one-step calcinations from nitrate and acetate precursors. Among the two precursors, ZnO-Ac showed the best photocatalytic activity due to its large active surface area, successfully degrading the hazardous dye RB 19 under solar light.
Article
Chemistry, Physical
R. Bagtache, R. Brahimi, K. Abdmeziem, M. Trari
Summary: The oxyfluorophosphate KAlPO4F compound was synthesized and its physical and photo-electrochemical properties were reported for the first time, including crystal structure, optical transition, and electrochemical performance. Additionally, the photocatalytic performance for methyl violet degradation under solar light was successfully tested, achieving complete discoloration after 5 hours of illumination.
REACTION KINETICS MECHANISMS AND CATALYSIS
(2021)
Article
Environmental Sciences
Rachida Bouallouch, Mohammed Kebir, Noureddine Nasrallah, Faouzi Saib, Atef El Jery, Lotfi Khezami, Mohamed Trari
Summary: The study found that chromate has the highest concentration in wastewater industries, and using spinel p-CoAl2O4 as a photocatalyst can effectively reduce Cr(VI) pollution. The optimal reduction efficiency of Cr(VI) is higher under low acidic conditions; the hetero-system CoAl2O4/ZnO can significantly enhance photocatalytic activity.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Engineering, Electrical & Electronic
S. Attia, N. Helaili, G. Rekhila, Y. Bessekhouad, M. Trari
Summary: SrFe2O4 prepared by sol-gel method exhibits excellent photo-electrochemical properties, with high H-2 evolution rate and quantum yield observed under visible light. The material also shows p-type behavior and semiconducting character.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Chemistry, Physical
A. M. Djaballah, R. Bagtache, M. Benlambarek, M. Trari
Summary: The spinel CuBi2O4 was successfully synthesized by a facile co-precipitation method at low temperature, and its physical properties were characterized. The synthesized oxide exhibits excellent optical performance and high photocatalytic activity for oxygen evolution under visible light.
REACTION KINETICS MECHANISMS AND CATALYSIS
(2022)
Article
Multidisciplinary Sciences
Souad Achour, Samira Amokrane, Salah Chegrouche, Bouzid Guedioura, Djamel Nibou
Summary: The study investigated the performance of purified bentonite and supported α-Fe2O3/BMB in the adsorption of Co-60 from a radioactive solution. The results showed that the adsorption process followed the pseudo-second order kinetics and was controlled by intra-particle diffusion mechanism. The thermodynamic parameters indicated that the adsorption process was endothermic, spontaneous, and favored at high temperatures.
ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING
(2022)
Article
Chemistry, Applied
S. Cherif, H. Rezzaz-Yazid, Z. Sadaoui, M. Trari
Summary: Researchers have demonstrated that using a mixed microbial culture can effectively degrade various pollutants by promoting synergistic interactions between microorganisms through the production of multiple enzymes.
JOURNAL OF WATER CHEMISTRY AND TECHNOLOGY
(2021)
