Article
Chemistry, Physical
Armin Raeisi, Alireza Najafi Chermahini, Marzieh Esmaeilzadeh Khabazi, Mohamad Mohsen Momeni, Rafael Luque, Antonio Pineda, Enrique Rodriguez Castellon, Carolina Vargas Fernandez
Summary: This investigation successfully removes sulfur-based compounds by a combination of absorptive and oxidative desulfurization processes using a series of novel Bi-based bifunctional photo electrocatalysts. The results showed that the catalysts had higher efficiency in absorptive desulfurization and better results in oxidative desulfurization. Among the catalysts, photoelectrocatalytic desulfurization performed best in dibenzothiophene removal.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Materials Science, Ceramics
Esneyder Puello-Polo, Noemi R. Checca-Huaman, Elvis O. Lopez, Carlos A. T. Toloza, Franklin J. Mendez
Summary: The impact of the synthesis method on the properties of the Al2O3-Ga2O3 sample was investigated. Ga loading resulted in an increase in surface area and pore volume, but a decrease in pore size. XRD analysis confirmed the formation of γ-Al2O3 with Ga atoms incorporated into the structure. The adsorption affinity of the adsorbent was strongest for BT and weakest for DBT.
CERAMICS INTERNATIONAL
(2023)
Article
Engineering, Chemical
Juncong Zou, Yan Lin, Shaohua Wu, Mengjie Wu, Chunping Yang
Summary: The developed catalyst Mo/KIT-6-Ti shows excellent oxidative desulfurization performance, achieving efficient conversion of sulfides without the need for organic solvents, demonstrating great potential for practical fuel applications.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Energy & Fuels
Ze Fang, Zhiguo Zhao, Nan Li, Zhexin Zhu, Wangyang Lu, Fengtao Chen, Wenxing Chen
Summary: An environmentally friendly desulfurization technology was developed using a biomimetic catalytic system, ethanol and water solvent, achieving a high removal rate of dibenzothiophene. The research provides a new idea for the design of efficient, energy-saving, and environmentally friendly desulfurization systems.
Article
Chemistry, Applied
Mohammad Hossein Farghadani, Vahid Mahdavi
Summary: This study successfully prepared a novel and effective bifunctional heterogeneous catalytic system for the desulfurization process by synthesizing nanorod-OMS-2 and molybdenum oxide catalysts. By controlling the composition and structure of the catalysts, highly dispersed molybdenum oxide species and strong acidic sites were achieved, resulting in improved catalytic activity and stability. The kinetics of the desulfurization reaction and the optimum conditions were investigated, providing a basis for further optimization of catalyst design.
FUEL PROCESSING TECHNOLOGY
(2022)
Article
Biochemistry & Molecular Biology
Ardian Nurwita, Maciej Trejda
Summary: The source of Bronsted acid centers, generated on two different mesoporous silica supports, was investigated for their application in the oxidative desulfurization of dibenzothiophene. The TPS/MCF catalyst showed excellent activity and stability under mild reaction conditions, making it a promising candidate for future applications.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Materials Science, Ceramics
Josefa Ortiz-Bustos, Isabel del Hierro, Yolanda Perez
Summary: The incorporation of iron and sulphate ions on TiO2 nanoparticles improved the catalytic performance, and a multifunctional and visible-light active photocatalyst was designed to remove pollutants from transportation fuels and water. Doping with a low amount of iron enhanced the photocatalytic performance, with the 1.2%S-0.5%Fe-TiO2 photocatalyst showing the highest activity under visible light irradiation. The improved electron charge transfer behavior of this photocatalyst was confirmed by electrochemistry measurements, and the stability and recyclability of the best photocatalyst were evaluated.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Applied
Hossein Naseri, Golshan Mazloom, Azam Akbari, Farhad Banisharif
Summary: Bimetallic Mo-M (M = Ni, Co, and Zn)/RHY supported catalysts were synthesized for oxidative desulfurization of DBT. Ni negatively influenced Mo dispersion, while Co and Zn improved it. Zn promoter allowed more active Mo species to be exposed, benefiting the ODS reaction.
MICROPOROUS AND MESOPOROUS MATERIALS
(2021)
Article
Energy & Fuels
Zakiullah Zaidi, Laxmi Gayatri Sorokhaibam
Summary: A novel chemical-biological approach using molybdenum and Rhodococcus erythropolis for liquid fuel desulfurization was investigated. The results show that Rh-Mo@FAT can significantly reduce the concentration of organosulfur compounds in fuel oil.
Article
Chemistry, Physical
Armin Raeisi, Alireza Najafi Chermahini, Mohammad Mohsen Momeni
Summary: In this study, a BiVO4@HKUST-1 composite catalyst was used for ultra-desulfurization of a model fuel through photocatalytic and photoelectrocatalytic processes. The BiVO4@HKUST-1 composite showed the best performance under photocatalytic desulfurization conditions, achieving the same results as the photoelectrocatalytic system with shorter time and lower amounts of oxidant and catalyst.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2022)
Article
Engineering, Environmental
Fariba Mohammadi Nejati, Shahrokh Shahhosseini, Mehran Rezaee
Summary: Researchers developed a sandwich-type polyoxometalate catalyst immobilized on magnetic graphene oxide, which showed high efficiency in removing sulfur compounds under suitable conditions. The catalyst also demonstrated good reusability.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Engineering, Environmental
Jian Wang, Biao Yang, Xuelian Peng, Yongcong Ding, Shanshan Yu, Fuqing Zhang, Linfeng Zhang, Huadong Wu, Jia Guo
Summary: A novel polyoxometalate-based ionic liquid salt [MIMPs]3PMo6W6O40 was designed and used as a catalyst in oxidative desulfurization, showing high activity in removing sulfur compounds with a low O/S molar ratio. The catalyst also exhibited excellent recyclability and efficiency in reducing sulfur compounds in real diesel.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Energy & Fuels
Fatemeh Khademian, Amin Bazyari, Parham Haghighi, Levi T. Thompson
Summary: High-performance surface-silylated titania-silica catalysts prepared by surface silylation method can improve the efficiency of oxidative desulfurization reactions and reduce the accumulation of harmful substances on the catalyst surface.
Article
Chemistry, Physical
Jilei Liang, Mengwei Fan, Wenjie Wu, Mengmeng Wu, Wangshui Cai, Gao Xinxing, Tingting Huang, Haiyun Rui
Summary: This study demonstrates the successful encapsulation of sandwich cobalt-tungsten polyoxomolybdate in a mesoporous metal-organic framework, resulting in excellent catalytic activity and recyclability.
Article
Energy & Fuels
Xiaoyu Zhou, Hang Liu, Sixiao Liu, Lei Zhang, Tianyi Wang, Chengyin Wang, Dawei Su
Summary: By using the α-Fe2O3/g-C3N4/HNTs composite material, efficient photocatalytic desulfurization of dibenzothiophene in model oil under visible light can be achieved. The unique structure of the composite material promotes the transfer and separation of photogenerated carriers, thereby enhancing the efficiency of photocatalytic reactions.
Article
Chemistry, Medicinal
Pedro Gama, Ruben D. Cadena-Nava, Karla Juarez-Moreno, Javier Perez-Robles, Rafael Vazquez-Duhalt
Summary: Enzymatic nanoreactors were created by encapsulating galactose-1-phosphate uridylyl-transferase (GALT) into plant virus capsids through a molecular self-assembly strategy, with the aim of developing a potential treatment for classic galactosemia. The nanoreactors showed slightly lower substrate affinity and a 16% activity rate compared to the free enzyme, and were efficiently internalized into various cells, particularly hepatocytes. This innovative enzyme preparation has promising applications in the treatment of classic galactosemia.
Review
Chemistry, Physical
Kanchan Chauhan, Andres Zarate-Romero, Prakhar Sengar, Carlos Medrano, Rafael Vazquez-Duhalt
Summary: The article discusses the complex chemical reactions performed by multiple enzymes in the cellular microenvironment of organisms, and efforts to mimic these reactions on artificial nano-assemblies while maintaining catalytic activity. The potential applications of these biocatalytic systems in environmental, biomedical, and applied chemistry are highlighted, along with the importance of considerations for catalytic activity in cascade reactions on nanoassemblies. The study also explores important parameters of enzyme kinetics in cascade reactions and molecular tools for the design and optimization of bi- and multi-enzymatic nanobioreactors reactions.
Article
Agriculture, Dairy & Animal Science
Katrin Quester, Sarahi Rodriguez-Gonzalez, Laura Gonzalez-Davalos, Carlos Lozano-Flores, Adriana Gonzalez-Gallardo, Santino J. Zapiain-Merino, Armando Shimada, Ofelia Mora, Rafael Vazquez-Duhalt
Summary: Encapsulating alpha-lipoic acid in chitosan nanoparticles improves its stability and allows it to cross the intestinal barrier, making it an attractive method for administering antioxidants or other sensitive additives in food.
Article
Chemistry, Physical
Seongcheol Choi, Rafael Vazquez-Duhalt, Olivia A. Graeve
Summary: In this study, we investigated the deposition behavior of monodispersed silica nanoparticles on polystyrene spherical particles under pH conditions ranging from 2 to 12, using a modified DLVO interaction force model. Our findings highlight the importance of considering the nonlinear charge regulation parameter, which takes into account the redistribution of ions, in accurately describing the electrical double layer interaction forces.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Biochemistry & Molecular Biology
Juliana Rincon-Lopez, Miguelina Martinez-Aguilera, Patricia Guadarrama, Karla Juarez-Moreno, Yareli Rojas-Aguirre
Summary: This study investigated the biological behavior of beta CDPEGs in macrophages, osteoblasts, and MDCK cells, and found that they elicited different cellular responses compared to their precursors. Beta CDPEG5 and beta CDPEG2 had different effects on cell viability, cell cycle, and cell migration in osteoblasts and MDCK cells, with beta CDPEG5 having a smaller interference on cell migration in osteoblasts. The covalent conjugation of beta CD and PEGs improved the biocompatibility profile, and this study provided valuable knowledge for designing biocompatible nanomaterials constructed from beta CD and PEGs.
Article
Chemistry, Medicinal
Kanchan Chauhan, Cindy N. Olivares-Medina, Maria V. Villagrana-Escareno, Karla Juarez-Moreno, Ruben D. Cadena-Nava, Ana G. Rodriguez-Hernandez, Rafael Vazquez-Duhalt
Summary: Encapsulated enzyme nanoreactors showed significant GCase catalytic activity and enhanced stability under physiological conditions. Targeting to macrophages was achieved through mannose receptor functionalization, suggesting potential for enzyme replacement therapy in Gaucher's disease.
Review
Biochemistry & Molecular Biology
Jorge L. Mejia-Mendez, Rafael Vazquez-Duhalt, Luis R. Hernandez, Eugenio Sanchez-Arreola, Horacio Bach
Summary: This review compiles recent scientific literature on virus-like particles (VLPs) with biomedical applications. It covers general information about viruses, the production and therapeutic performance of VLPs, the structural classification and functionalization methods of VLPs, and various characterization techniques for examining VLPs.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Infectious Diseases
Elvira Ivonne Murillo-Rabago, Alfredo R. Vilchis-Nestor, Karla Juarez-Moreno, Luis E. Garcia-Marin, Katrin Quester, Ernestina Castro-Longoria
Summary: This study investigated the production of silver nanoparticles (AgNPs) using fungal extracts and supernatants, and evaluated their antimicrobial effects and cytotoxicity. The results showed that the fungal extracts yielded slightly larger AgNPs, while both the extracts and supernatants produced quasi-spherical AgNPs. The AgNPs exhibited antimicrobial effects against different bacterial strains, with low minimum inhibitory concentrations. Moreover, the AgNPs remained stable for over a year and retained their antibacterial properties. Overall, the optimized protocol using fungal extracts or supernatants provides a fast method for synthesizing small AgNPs with potential clinical applications.
Article
Chemistry, Multidisciplinary
Luis Enrique Garcia-Marin, Karla Juarez-Moreno, Alfredo Rafael Vilchis-Nestor, Ernestina Castro-Longoria
Summary: The biosynthesized copper oxide nanoparticles exhibit significant inhibitory effect on Candida albicans, showing potential as a candidate for developing topical antifungal treatment. Analysis reveals that exposure to nanoparticles leads to production of reactive oxygen species (ROS) in C. albicans, with nanoparticles distributed both inside and outside the cells, having minimal impact on cell viability.
Article
Virology
Oscar Gonzalez-Davis, Maria V. Villagrana-Escareno, Mario A. Trujillo, Pedro Gama, Kanchan Chauhan, Rafael Vazquez-Duhalt
Summary: Enzyme replacement therapy (ERT) is used to treat diseases caused by enzyme deficiency. Encapsulation of enzymes inside virus-like particles (VLPs) as enzymatic nanoreactors provides a promising alternative for ERT. VLPs, as delivery vehicles, are biodegradable, organized, porous nanostructures that protect the biocatalyst and maintain its bioactivity. This article reviews the production processes and functionalization of virus-based enzymatic nanoreactors, and discusses their potential use in the treatment of lysosomal storage diseases and other genetic disorders.
Article
Chemistry, Multidisciplinary
Jorge A. Ontiveros-Robles, Francisca Villanueva-Flores, Karla Juarez-Moreno, Andrey Simakov, Rafael Vazquez-Duhalt
Summary: Copper oxide nanoparticles were functionalized with specific antibodies to enhance their antibacterial activity against Gram-positive or Gram-negative bacteria. The functionalized nanoparticles showed increased specificity of their antibacterial activity, as evidenced by the reduced IC50 and MI values in both Escherichia coli and Bacillus subtilis. The advantages of smart antibiotic nanoparticles are discussed.
Article
Chemistry, Physical
J. A. Medina Cervantes, J. N. Diaz de Leon, S. Fuentes Moyado, G. Alonso-Nunez
Summary: This study investigated the influence of different precursor compounds and the addition of nickel on the structural and catalytic properties of CoNiMo catalysts supported on SBA-15. The results showed that the type of precursor compound used and the amount of nickel added had a significant impact on the HDS activity of the catalysts.
MOLECULAR CATALYSIS
(2023)
Article
Biochemical Research Methods
Oscar Gonzalez-Davis, Itandehui Betanzo, Rafael Vazquez-Duhalt
Summary: This study presents a new spectrophotometric method for accurately determining the concentration of chitosan. The method involves the deamination of chitosan by nitrite under acidic conditions, followed by carbohydrate determination using the anthrone reagent.
BIOLOGY METHODS & PROTOCOLS
(2023)
Article
Chemistry, Multidisciplinary
M. J. Hernandez-Esparza, Ilaria Fratoddi, Sara Cerra, K. Juarez-Moreno, R. Huirache-Acuna
Summary: This research presents an evaluation of a hybrid material based on gold nanoparticles stabilized with 3-mercapto-propanesulfonate and loaded with methotrexate drug. The study demonstrates the effectiveness of the nanosystem in treating cervical cancer and melanoma, as well as its toxicity towards tumor cells.
NANOSCALE ADVANCES
(2023)
