Article
Biochemistry & Molecular Biology
Xin Wang, Lihong He, Jianrong Huang, Nanjing Zhong
Summary: In this study, immobilized lipases were carefully studied for their hydrolysis activity and glycerolysis performance. The mechanism of lipase immobilization through interfacial activation was explored. The modification of SBA-15 by halogen & haloalkanes showed considerable glycerolysis activity for the preparation of diacylglycerols (DAG).
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2021)
Review
Chemistry, Physical
Phan Gia Le, Qilu Wu, Do Yun Kong, Jun Ge, Moon Il Kim
Summary: Enzymatic biofuel cells (EBFCs) are promising power sources for generating electrical power through biomolecules. However, their practical usage is limited by low power output and short lifetime. Nanostructured supports, such as nanocarbons, nanoparticles, and polymeric nanofibers, offer potential solutions to enhance the performance and stability of EBFCs. This review discusses the roles of nanostructured supports and catalytic mechanisms in EBFCs, as well as recent research progress and future prospects.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Engineering, Chemical
Nattamon Worrarat, Supacha Buttranon, Pangrum Punthong, Suppalak Phaisan, Apisit Naramittanakul, Duangthip Trisrivirat, Thanyaporn Wongnate, Pimchai Chaiyen, Nopphon Weeranoppanant
Summary: This study developed a multienzyme immobilization technique to colocalize two enzymes on graphene oxide, significantly improving the efficiency of biocatalytic reactions. The use of liquid-liquid extraction for product recovery also greatly increased the overall production.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Article
Chemistry, Physical
Carlos R. R. Llerena Suster, Maria V. Toledo, Silvana R. R. Matkovic, Susana R. R. Morcelle, Laura E. E. Briand
Summary: The adsorption of CALB onto nanostructured SiO2 with the addition of polyols was studied, and the isotherms of adsorption revealed the maximum dispersion limit. CALB showed selective adsorption and modified secondary structure distribution. Its biocatalytic activity was confirmed through the kinetic resolution of rac-ibuprofen, achieving high conversions and enantiomeric excess. The best catalytic performance, improved thermal resistance, and long-term stability were achieved when CALB was co-adsorbed with polyols at the maximum dispersion limit.
Article
Biochemistry & Molecular Biology
Arina I. Gordeeva, Anastasia A. Valueva, Maria O. Ershova, Elizaveta E. Rybakova, Ivan D. Shumov, Andrey F. Kozlov, Vadim S. Ziborov, Maria G. Zavialova, Victor G. Zgoda, Yuri D. Ivanov, Alexander I. Archakov, Tatyana O. Pleshakova
Summary: Mass spectrometry (MS) was used to identify bovine serum albumin (BSA) immobilized on a mica chip for atomic force microscopy (AFM) investigation. Two different crosslinkers, SuccBB and DSP, were used for protein immobilization, with SuccBB being more efficient. The choice of crosslinker was found to affect the MS identification results. These findings are relevant for the development of sensitive protein analysis systems.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Food Science & Technology
Sara Kharazmi, Asghar Taheri-Kafrani
Summary: An efficient method for enhancing fruit juice quality is achieved by simultaneously hydrolyzing polysaccharides. Covalent co-immobilization of pectinase and xylanase onto functionalized iron oxide nanoparticles is reported as an efficient approach to fabricate a novel nanobiocatalyst for fruit juice clarification. The co-immobilized enzymes showed improved thermal and pH stabilities compared to free counterparts, with more than 74% and 48% of residual activity retained after six consecutive cycles for pectinase and xylanase, respectively. The developed nanobiocatalyst achieved a 53% reduction in turbidity of pineapple juice after 120 minutes treatment, and more than 64% of the initial enzyme activity was retained after nine reuses, indicating its potential application in industrial juice processing.
LWT-FOOD SCIENCE AND TECHNOLOGY
(2023)
Article
Biochemistry & Molecular Biology
Graziano Rilievo, Alessandro Cecconello, Simone Molinari, Andrea Venerando, Lavinia Rutigliano, Gayathri T. Govardhan, Dinusha H. Kariyawasam, Ruth J. Arusei, Lucio Zennaro, Maria L. Di Paolo, Enzo Agostinelli, Fabio Vianello, Massimiliano Magro
Summary: Protein-nanoparticle hybrids with emerging biological properties were created by immobilizing bovine serum amine oxidase onto magnetic nanomaterial. The immobilized BSAO showed sensitive response to pH variations, leading to modulation of its activity. This study highlights the significance of protein-nanoparticle conjugation in modulating biological functions.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Chemistry, Physical
Rodolpho R. C. Monteiro, Andre Luiz Barros de Oliveira, Fernando L. de Menezes, Maria Cristiane Martins de Souza, Pierre B. A. Fechine, Jose C. S. dos Santos
Summary: This research optimized the immobilization of lipase A from Candida antarctica (CALA) in halloysite nanotubes (Hal) using the Taguchi method. The pH and ionic strength were found to have the most positive effect on the enzymatic immobilization process. The immobilized CALA showed higher activity at pH 9 compared to the native lipase. Characterization of Hal and CALA-Hal confirmed the immobilization of CALA on Hal with maintained nanotube structure. These results suggest that immobilizing CALA onto Hal has promising potential for various industrial reactions.
APPLIED CLAY SCIENCE
(2022)
Article
Agricultural Engineering
Fernando Roberto Paz-Cedeno, Jose Miguel Carceller, Sara Iborra, Ricardo Keitel Donato, Anselmo Fortunato Ruiz Rodriguez, Marco Antonio Morales, Eddyn Gabriel Solorzano-Chavez, Ismael Ulises Miranda Roldan, Ariela Veloso de Paula, Fernando Masarin
Summary: Immobilized enzymes on magnetic graphene oxide particles improve stability and reusability, showing potential applications in enzymatic hydrolysis of sugarcane bagasse.
INDUSTRIAL CROPS AND PRODUCTS
(2022)
Article
Chemistry, Multidisciplinary
Christina Alatzoglou, Michaela Patila, Archontoula Giannakopoulou, Konstantinos Spyrou, Feng Yan, Wenjian Li, Nikolaos Chalmpes, Angeliki C. Polydera, Petra Rudolf, Dimitrios Gournis, Haralambos Stamatis
Summary: In this study, few-layer bio-Graphene (bG) was produced through liquid exfoliation of graphite in the presence of bovine serum albumin. The quality of the nanomaterial was confirmed through microscopic characterization, and spectroscopic techniques verified the presence of bovine serum albumin on the graphene sheets. The bG was used as a support for the covalent co-immobilization of beta-glucosidase, glucose oxidase, and horseradish peroxidase, demonstrating high immobilization yields and activity recoveries.
Article
Chemistry, Multidisciplinary
Katesara Phasuksom, Anuvat Sirivat
Summary: Doped-polyindole mixed with multi-walled carbon nanotubes were coated on a screen-printed electrode to improve the electroactive surface area and current response of the glucose sensor. The immobilized glucose sensor showed high sensitivity, stability, and selectivity. It can be used for continuous or step-wise glucose monitoring and is suitable for large-scale production and everyday use.
Article
Biochemistry & Molecular Biology
Hong Zhang, Xin Zhang, Bo Wang, Xu Zeng, Haizhao Guo, Bo Ren, Xiaodong Yang
Summary: By immobilizing enzymes on functionalized ionic liquid-modified mesoporous molecular sieves, the stability and activity of the enzymes can be significantly improved. The laccase immobilized on C-1/BF4-SBA-15 exhibited the best performance in terms of stability and activity.
BIOCATALYSIS AND BIOTRANSFORMATION
(2022)
Article
Chemistry, Multidisciplinary
Xiaoping Wang, Bing Xiao, Guolong Yang, Jingnan Chen, Wei Liu
Summary: The study successfully synthesized phytosterol oleic acid esters from high-oleic sunflower seed oil using an efficient enzymatic method. The process showed higher catalytic activity with Candida rugosa lipase and optimum conditions resulted in maximum conversion of phytosterols and yield of phytosterol esters. This enzymatic esterification method offers a simple and rapid way for producing unsaturated fatty acid esters of phytosterol, beneficial as functional food ingredients.
Article
Polymer Science
Shamo Zokhrab Tapdiqov
Summary: The study focused on the preparation and properties of a new hydrogel based on chitosan. The hydrogel exhibited good swelling behavior and suitable hydrophilicity and pH sensitivity for carrying trypsin. Trypsin was loaded onto the hydrogel through electrostatic interaction and hydrogen bond attachment, leading to the formation of hydrogen bonds between carrier and trypsin functional groups.
MACROMOLECULAR RESEARCH
(2021)
Article
Engineering, Biomedical
Mehraneh Kermanian, Somayeh Sadighian, Mehran Naghibi, Maryam Khoshkam
Summary: This study proposed an engineered mesoporous silica-coated Fe3O4 nanoparticle, PVPMSFe, as an MRI T2 contrast agent prepared by a sol-gel/surface-protected etching mechanism. The synthesized nanocomposite showed excellent biocompatibility and magnetization properties, making it an efficient T2 contrast agent for attenuating the T2 signal of MRI.
JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION
(2021)
Article
Chemistry, Physical
Babak Karimi, Bahareh Ghaffari, Hojatollah Vali
Summary: The study successfully prepared a highly water-dispersible/magnetically separable multi-functional catalyst system by incorporating TEMPO and an imidazolium bromide bearing TEG groups into the Fe3O4@SiO2 core-shell structure. The catalyst showed excellent performance in alcohol oxidation with strong synergistic effect between functionalized components, dual-adjustable selectivity, and recyclability through a double-separation strategy.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Engineering, Biomedical
Mohammad Yoozbashi, Hamid Rashidzadeh, Mehraneh Kermanian, Somayeh Sadighian, Mir-Jamal Hosseini, Zahra Kaboli, Kobra Rostamizadeh
Summary: In this study, magnetic nanostructured lipid carriers (Mag-NLCs) were synthesized for the delivery of curcumin (CUR), showing temperature-dependent release rates. Evaluation of mitochondrial toxicity revealed no specific toxic effects of CUR-Mag-NLCs and curcumin on isolated mitochondria.
JOURNAL OF BIOMATERIALS APPLICATIONS
(2022)
Article
Engineering, Biomedical
Mohammad-Amin Rahmati, Hamid Rashidzadeh, Mir-Jamal Hosseini, Somayeh Sadighian, Mehraneh Kermanian
Summary: Multifunctional nanocarriers loaded with quercetin and magnetic nanoparticles show potential in improving drug bioavailability and reducing adverse effects. The developed QMNMs exhibit stable and high rate of drug release under mildly acidic conditions, with no specific mitochondrial toxicity observed, suggesting their potential as an effective drug delivery system.
JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION
(2022)
Article
Chemistry, Physical
Seyedeh Zahra Alizadeh, Babak Karimi, Hojatollah Vali
Summary: A nitrogen-rich ordered mesoporous carbon (DNOMC) was successfully synthesized and used as a support for palladium nanoparticles to prepare a catalyst with high activity and selectivity in the oxidation of alcohols in water. The catalyst showed good reusability and potential industrial application value.
Article
Polymer Science
Azita Sharifi Saqezi, Mehraneh Kermanian, Ali Ramazani, Somayeh Sadighian
Summary: This study focused on developing a superparamagnetic graphene oxide-based nanocomposite for quercetin delivery. The structure, morphology, biocompatibility, and drug delivery efficiency of the nanocomposite were investigated. The results showed that the nanocomposite is highly biocompatible and can effectively deliver quercetin to cancer cells.
JOURNAL OF INORGANIC AND ORGANOMETALLIC POLYMERS AND MATERIALS
(2022)
Review
Materials Science, Multidisciplinary
Babak Karimi, Nasim Ganji, Omid Pourshiani, Werner R. Thiel
Summary: This article provides a comprehensive review of the recent advances in the synthesis, morphology, functionalities, and applications of periodic mesoporous organosilicas (PMOs), with a focus on developments after 2014. Special attention is given to a new family of PMOs, namely hollow spherical and hollow/yolk shell PMOs, which offer additional benefits compared to traditional PMOs.
PROGRESS IN MATERIALS SCIENCE
(2022)
Review
Chemistry, Multidisciplinary
Aziz Maleki, Matineh Ghomi, Nasser Nikfarjam, Mahsa Akbari, Esmaeel Sharifi, Mohammad-Ali Shahbazi, Mehraneh Kermanian, Mohammed Seyedhamzeh, Ehsan Nazarzadeh Zare, Mehdi Mehrali, Omid Moradi, Farshid Sefat, Virgilio Mattoli, Pooyan Makvandi, Yu Chen
Summary: MXenes, as a new subclass of 2D materials, have shown great potential in biomedical applications, especially in drug delivery, tissue engineering, and biosensors. The integration of MXenes into hydrogels can enhance the electrical conductivity and mechanical properties of scaffolds, making it significant for biomedical engineering.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Biotechnology & Applied Microbiology
Rosaria Ciriminna, Mina Ghahremani, Babak Karimi, Mario Pagliaro
Summary: This study provides an overview of the extraction routes of nanocellulose, highlighting the limitations imposed by high costs in its industrial applications. However, in recent years, green extraction routes have been developed, offering the potential for widespread use of nanocellulose in various industries through sustainable production and utilization of low-cost waste materials.
BIOFUELS BIOPRODUCTS & BIOREFINING-BIOFPR
(2023)
Article
Chemistry, Applied
Sedigheh Abedanzadeh, Babak Karimi, Zainab Moosavi-Movahedi, Omid Pourshiani, Alireza Badiei, Ali A. Moosavi-Movahedi
Summary: Artificial enzymes resembling natural enzymes were developed using a rational design approach to simulate the coordination sphere around the iron active center. Periodic mesoporous organosilica (PMO) materials were used as supports due to their unique properties, and a new peroxidase-like nanozyme was fabricated. The biomimetic pathways used in this study showed potential for the development of nanozymes with excellent thermal stability and long-term storage stability.
MICROPOROUS AND MESOPOROUS MATERIALS
(2023)
Article
Chemistry, Organic
Babak Karimi, Akbar Mobaraki, Hamid M. M. Mirzaei, Hojatollah Vali
Summary: A series of metal-free tandem reactions were conducted to synthesize pharmaceutically important 2-substituted benzoazoles using catalyst-free conditions with Et-PMO-Me-PrSO3H and SBA-15-PrSO3H as solid acids. The selectivity between 2-mercaptobenzoxazole and 2-aminobenzoazole derivatives could be altered by changing the catalyst from hydrophobic material 1a to more hydrophilic catalyst 1b. This novel and green approach provides an alternative method for synthesizing 2-substituted benzoazole derivatives.
ORGANIC & BIOMOLECULAR CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Rosaria Ciriminna, Mina Ghahremani, Fahimeh Varmaghani, Babak Karimi, Mario Pagliaro
Summary: Chemistry, including electrochemistry, is understood and practiced using models and visualization. This study emphasizes the potential of a modeling approach focused on green chemistry applications in improving electrochemistry education. Green electrosynthesis experiments, in particular, greatly enhance student interest and learning in this interdisciplinary field.
SUSTAINABLE CHEMISTRY AND PHARMACY
(2023)
Article
Chemistry, Physical
Omid Pourshiani, Babak Karimi, Hesamodin Moradi, Werner R. R. Thiel, Hojatollah Vali, Pietro Mastrorilli, Stefano Todisco
Summary: The catalytic activity of several supported catalysts with perruthenate anions in mesochannels of plugged and unplugged bifunctional periodic mesoporous organosilicas (Ru@BFPMOs) in the aerobic oxidation of alcohols was investigated. The morphology and structure of the materials were characterized, and it was found that all materials have a 2D-hexagonal symmetry structure. The resulting catalyst showed high efficiency in the oxidation of a wide variety of alcohols.
CATALYSIS SCIENCE & TECHNOLOGY
(2023)
Article
Chemistry, Analytical
Nasim Shamsvand, Fahimeh Varmaghani, Babak Karimi, Hamzeh Hassanaki
Summary: The role of nitrogen functional groups in nitrogen-doped ordered mesoporous carbons (OMCs) was investigated using two home-made ionic liquid-derived OMCs with different nitrogen concentrations. It was found that the nitrogen content had a significant impact on the loading of electroactive species on the OMCs.
Article
Chemistry, Multidisciplinary
Mojtaba Khorasani, Babak Karimi, Hojatollah Vali
Summary: In this study, a bifunctional periodic mesoporous organosilica was used as a catalyst support to immobilize iodide ions for the catalytic reaction between CO2 and epoxides, leading to the formation of cyclic carbonates. The catalyst exhibited improved activity and could be reused multiple times without loss in activity or selectivity.
REACTION CHEMISTRY & ENGINEERING
(2022)