Article
Chemistry, Applied
Hamidreza Aghaei, Zahra Mohammadbagheri, Amineh Hemasi, Ameneh Taghizadeh
Summary: This study successfully immobilized alpha-amylase from Bacillus subtilis on three different supports using adsorption and covalent immobilization methods. The immobilized enzymes showed improved thermal and storage stability, higher specific activity, and good catalytic performance in starch hydrolysis compared to free enzymes.
Article
Biophysics
Ke Wang, Rui Lv, Shiyong Sun, Faqin Dong, Mingxue Liu, Jin Liu, Xiaoqin Nie
Summary: This study demonstrates a novel approach to immobilize enzymes on nanostructured substrates, constructing nanobiocatalysts for enhanced enzymatic performance. The immobilized alpha-amylase showed higher catalytic activity and stability over a wide range of pH values and temperatures, likely due to allosteric modulation. The study lays the foundation for further industrial applications utilizing the phenomenon of allosteric activation of enzymes.
COLLOIDS AND SURFACES B-BIOINTERFACES
(2022)
Article
Biochemistry & Molecular Biology
Nitin Kumar Verma, Neera Raghav
Summary: The study explores the immobilization of alpha-Amylase on cellulose isolated from banana peel using two different methods - covalent bonding and hydrophobic interactions. It finds that Cellulose Dialdehyde shows high reusability and good enzyme loading, while nanocellulose - CTAB matrix demonstrates good enzyme loading and a shift in optimum pH. The results highlight the promising nature of the covalent mode of immobilization for industrial use.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2021)
Review
Food Science & Technology
Zahra Beig Mohammadi, Fuyuan Zhang, Mohammad Saeed Kharazmi, Seid Mahdi Jafari
Summary: This article reviews the application of nanotechnology in the food industry. By immobilizing enzymes on nanomaterials, nanobiocatalysts with improved enzymatic activity, efficiency, stability, and storage stability are created. Nanobiocatalysts have a wide range of applications in food purification, extraction, clarification, production, and packaging, and have been successful in detecting specific components of food contaminants.
CRITICAL REVIEWS IN FOOD SCIENCE AND NUTRITION
(2022)
Review
Biotechnology & Applied Microbiology
Vivek Chauhan, Diksha Kaushal, Vivek Kumar Dhiman, Shamsher Singh Kanwar, Devendra Singh, Vinay Kumar Dhiman, Himanshu Pandey
Summary: Enzymes are crucial for all organisms and their immobilization can greatly improve the outcome of biocatalytic processes, making the products purer and more economical.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2022)
Article
Multidisciplinary Sciences
Salwa A. M. Abdel-Hameed, Samia A. Ahmed, Faten A. Mostafa, Ola. N. Almasarawi, Walaa A. Abdel Wahab
Summary: Bacterial alpha-amylase was successfully immobilized on sugilite glass, based on M=Fe, as a carrier. The immobilized enzyme showed improved thermal stability and increased affinity to starch. This study demonstrates the potential of sugilite glass as a suitable carrier for enzyme stabilization through immobilization.
Article
Chemistry, Inorganic & Nuclear
Ricardo Guz, Elaine Regina Lopes Tiburtius, Christiana Andrade Pessoa
Summary: This study presents the synthesis and characterization of CuNb2O6 photocatalyst by self-combustion method and its immobilization on chitosan polymeric membrane. The optimized investigation shows the association between adsorption and heterogeneous photocatalysis processes in the degradation of Tartrazine yellow dye under visible light radiation. The immobilized photocatalyst exhibits promising efficiency in degrading the dye, with 94% reduction in chromophore compounds and 86% reduction in aromatic compounds, even after six cycles of reuse.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Karima Salem, Ylenia Jabalera, Jose David Puentes-Pardo, Jesus Vilchez-Garcia, Adel Sayari, Aida Hmida-Sayari, Concepcion Jimenez-Lopez, Massimiliano Perduca
Summary: Enzyme immobilization on magnetic nanoparticles offers reusability, stability, and robust activity under various conditions. In this study, microbial alpha-amylase and xylanase were successfully immobilized on different types of MNPs using optimized protocols, showing potential for bioindustry applications.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2021)
Article
Nanoscience & Nanotechnology
Haizhi Zhang, Zhiping Sun, Cunhui Wu, Xinguang Qin, Gang Liu
Summary: The study focused on the immobilization strategy between ZIF-8 and different enzymes. A magnetic amine-functionalized ZIF-8 with hierarchical pores was designed for efficient covalent immobilization of alpha-amylase. The catalytic activity of immobilized alpha-amylase was explored and demonstrated excellent catalytic activity with good stability and reusability.
ACS APPLIED NANO MATERIALS
(2023)
Article
Food Science & Technology
Vali Azizi, Maryam Mohammadi, Reza Rezaei Mokarram, Mahmood Sowti Khiabani, Hamed Hamishehkar
Summary: In this study, α-amylase was covalently immobilized on magnetic zeolite particles and exhibited good stability and reusability. The optimal pH for immobilized enzymes shifted towards basic conditions, showing enhanced stability under alkaline conditions, which could be applied in industrial production.
LWT-FOOD SCIENCE AND TECHNOLOGY
(2021)
Article
Chemistry, Applied
Asad Hosseini, Soghra Ramezani, Mahnaz Tabibiazar, Maryam Mohammadi, Zahra Golchinfar, Maryam Mahmoudzadeh, Ali Jahanban-Esfahlan
Summary: This study successfully prepared alpha-amylase encapsulated in water in oil emulsion and electrospun fibers. The immobilized enzyme exhibited high activity across a wide range of pHs and temperatures, and showed good storage stability and reusability.
CARBOHYDRATE POLYMERS
(2022)
Review
Engineering, Chemical
Ernestina Garcia-Quinto, Raquel Aranda-Canada, Paz Garcia-Garcia, Gloria Fernandez-Lorente
Summary: Enzymes are complex proteins used in biochemical reactions and widely applied in industrial processes. The use of enzymes in the food industry, particularly immobilized enzymes, offers advantages such as stabilization and cost reduction.
Article
Chemistry, Multidisciplinary
Zhengfeng Zhao, Dong Zheng, Menglei Guo, Jiangyue Yu, Sainan Zhang, Zhenjie Zhang, Yao Chen
Summary: This study developed a new artificial photoenzymatic system using a mesoporous olefin-linked covalent organic framework as the carrier for immobilizing formate dehydrogenase and Rh-based electron mediator, achieving high efficiency in converting CO2 to formic acid.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Review
Environmental Sciences
Kuok Ho Daniel Tang, Serene Sow Mun Lock, Pow-Seng Yap, Kin Wai Cheah, Yi Herng Chan, Chung Loong Yiin, Andrian Zi En Ku, Adrian Chun Minh Loy, Bridgid Lai Fui Chin, Yee Ho Chai
Summary: The review article discusses the latest advances, feasibility, and future prospects of immobilized enzyme/microorganism complexes for microplastics degradation. It highlights the improvement in biodegradation efficiency and enzyme recyclability achieved by metal nanoparticle-enzyme complexes and carbon particle-enzyme complexes. Other emerging nanoparticles and enzymatic technologies are also mentioned.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Biochemistry & Molecular Biology
Omur Acet, Tulden Inanan, Burcu Onal Acet, Emrah Dikici, Mehmet Odabasi
Summary: In this study, Cu2+ ions were attached to pumice particles to synthesize a composite cryogel. The immobilized alpha-amylase showed better stability in terms of storage and operational properties compared to the free enzyme.
APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY
(2021)
Article
Nanoscience & Nanotechnology
Olena I. Yanushevska, Nina V. Vlasenko, German M. Telbis, Evhen V. Leonenko, Olga Z. Didenko, Vladimir G. Prozorovich, Andrei I. Ivanets, Tetiana A. Dontsova
Summary: The acid-base properties of catalysts play a crucial role in the efficacy of photocatalytic processes, with a correlation observed between the strength of acid sites and photocatalytic activity. Sulphur-free catalysts showed higher activity in methylene blue photodegradation, while sulphur-containing nanocomposites were most effective in Congo Red photodegradation due to their bifunctional acid-base nature.
APPLIED NANOSCIENCE
(2022)
Article
Environmental Sciences
Qian Zhu, Huiqin Gao, Yiwei Sun, Yujia Xiang, Xiangjing Liang, Andrei Ivanets, Xiaoqin Li, Xintai Su, Zhang Lin
Summary: Heteroatoms have a synergistic effect on enhancing the adsorption performance of carbon-based materials for heavy metal removal. In this study, N and S doped porous biochar was prepared from paper mill sludge using a simple two-step pyrolysis method for the removal of Cr(VI) from aqueous environment. The results showed that the N and S doped biochar had excellent adsorption capacity for Cr(VI) and the adsorption mechanism was mainly reductive complexation. Furthermore, the material also showed promising application prospects in real water environments.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Materials Science, Ceramics
Andrei Ivanets, Vladimir Prozorovich, Olim Ruzimuradov, Xintai Su, Ahmad Hosseini-Bandegharaei, Zhao Wang, Varsha Srivastava, Mika Sillanpaa
Summary: A novel nanostructured Fenton-like catalyst based on La-doped MgFe2O4 was developed to enhance the degradation of carbamazepine. The physicochemical properties of the catalyst were studied, and the optimal conditions for maximum degradation efficiency were determined. The developed catalyst demonstrated high stability and efficiency, making it suitable for treating wastewaters polluted with organic active compounds.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2023)
Article
Environmental Sciences
Alireza Mohammadzadeh, Mustafa M. Kadhim, Talib Zeedan Taban, Omirserik Baigenzhenov, Andrei Ivanets, Basant Lal, Naveen Kumar, Ahmad Hosseini-Bandegharaei
Summary: In this study, the adsorption properties of Enterobacter cloacae towards uranium were investigated. The results showed that Enterobacter cloacae has a high affinity for fast and selective biosorption of uranium ions. Additionally, a composite material of Enterobacter cloacae/carbon nanotube was synthesized and utilized for preconcentration and determination of uranium, demonstrating low detection limit, high precision, and good accuracy.
Article
Environmental Sciences
Zhenxing Zhou, Tianbao Liu, Jinxiong Wu, Hongling Li, Shasha Chu, Xiaoquan Zhu, Lijuan Zhang, Jing Lu, Andrei Ivanets, Bekchanov Davronbek, Kongjun Ma, Xintai Su
Summary: The complexity of electroplating sludge limits the selective recovery of metal resources. In this study, CuFe bimetallic Fenton-like catalysts were prepared from electroplating sludge and showed excellent degradation performance and active species, providing a new technical route for the resource utilization of electroplating sludge.
ENVIRONMENTAL RESEARCH
(2023)
Article
Environmental Sciences
Boyu Jia, Tianbao Liu, Juanjuan Wan, Andrei Ivanets, Yujia Xiang, Lijuan Zhang, Xintai Su
Summary: Microbial reduction of hexavalent chromium (Cr (VI)) is efficient and cost-effective, but immobilization of Cr (III) remains a challenge due to limited electron donors. A greener and cleaner option is using bioelectrochemical systems, such as the polydopamine (PDA) decorated Shewanella oneidensis MR-1 (S. oneidensis MR-1) bioelectrode. The PDA@S. oneidensis MR-1 biofilm showed increased removal efficiency (RE) of Cr (VI) and immobilization efficiency (IE) of Cr (III) due to shortened distance between individual bacteria.
ENVIRONMENTAL RESEARCH
(2023)
Review
Engineering, Chemical
Chantal T. Tracey, Anastasia Kryuchkova, Takshma K. Bhatt, Pavel Krivoshapkin, Elena F. Krivoshapkina
Summary: In order to reduce food waste, the use of biodegradable silk-based coatings and packaging with antimicrobial properties has been proposed to prolong the freshness of fruits and vegetables.
JOURNAL OF FOOD ENGINEERING
(2023)
Article
Electrochemistry
Maria Temnikova, Jury Medvedev, Xenia Medvedeva, Nyhenflore H. Delva, Evgeniia Khairullina, Elena Krivoshapkina, Anna Klinkova
Summary: In this study, an efficient electrosynthesis method for converting furfural, a valuable compound derived from biomass, into a jet fuel precursor hydrofuroin, was reported. The effects of operating parameters on the electrosynthesis efficiency were systematically examined, and it was found that under optimized conditions, the reaction can be carried out in a simple undivided cell with a high yield of hydrofuroin (up to 100%).
Article
Energy & Fuels
Junjie Zhang, Jingai Shao, Xiong Zhang, Gang Rao, Pavel Krivoshapkin, Elena Krivoshapkina, Haiping Yang, Shihong Zhang, Hanping Chen
Summary: In this study, a copper(II) benzene-1,3,5-tricarboxylate metal-organic framework (MOF)/biochar composite with improved water stability was obtained for toluene adsorption applications. The Cu-BTC was scattered on biochar in the form of broccoli-shaped microspheres. Compared to traditional octahedral Cu-BTC, the degradation process of the broccoli-shaped Cu-BTC/biochar was effectively slowed down, showing better moisture stability.
Article
Chemistry, Inorganic & Nuclear
Ekaterina D. Koshevaya, Evgeny V. Khramov, Roman D. Svetogorov, Aleksei G. Krasnov, Ilia S. Martakov, Ivan I. Shishkin, Elena F. Krivoshapkina, Pavel V. Krivoshapkin
Summary: Doping of oxides nanoparticles with rare earth elements can manipulate their structural, optical, and electrochemical properties. In this study, tantalum oxide particles were doped with rare earth elements to investigate their impact on the oxide structure and luminescence. Experimental and theoretical studies revealed that the doped tantalum oxide crystallized in the orthorhombic phase and exhibited wide-spectrum luminescence.
INORGANIC CHEMISTRY
(2023)
Article
Environmental Sciences
Zeliang Luo, Hong Wang, Min Wang, Juanjuan Wan, Andrei Ivanets, Xintai Su
Summary: This study presents an actual sludge dewatering project in a sewage treatment plant in Dongguan, Guangdong. By adjusting the optimal proportion of lactic acid bacteria (LAB), polyacrylamide (PAM), and polymeric aluminum ferric chloride (PAFC), the system achieved a stable operation for 190 days, with an average water content decrease of 61.59% and a direct running cost of sludge dewatering at 94.13 yuan/ton under the optimal conditioning scheme of 2.5 parts per thousand PAM + 1.5 parts per thousand LAB + 2.0 parts per thousand PAFC. This study provides practical engineering reference and theoretical basis for the combined application of biochemical conditioning and vertical filter press for sludge dewatering.
WATER AIR AND SOIL POLLUTION
(2023)
Article
Multidisciplinary Sciences
Andrei I. Ivanets, Darya Pecheoncka, Vladimir G. Prozorovich, Tatyana F. Kouznetsova
Summary: Adsorbents based on binary lithium-manganese oxides with the spinel structure of Li1.33Mn1.67O4 were synthesized using solid-phase, sol-gel, and hydrothermal methods. The effect of synthesis methods and calcination temperature on the properties of the adsorbents was investigated. The results showed that the samples obtained by solid-phase and sol-gel methods and calcined at 600 degrees C were single-phase Li1.33Mn1.67O4, while the hydrothermal synthesis also produced a trace phase of Mn2O3. The adsorption efficiency of Li+ ions was highest in the samples prepared by sol-gel and hydrothermal methods after calcination at 600 degrees C.
DOKLADY NATSIONALNOI AKADEMII NAUK BELARUSI
(2023)
Article
Engineering, Environmental
Natalja Kitikova, Andrei Ivanets, Irina Shashkova, Ludmila Kul'bitskaya, Omirserik Baigenzhenov, Mika Sillanpaa
Summary: The kinetics of Pb2+ and Zn2+ ions adsorption by low-cost mixed Zr-Ca-Mg phosphates was studied for the first time. The chemical composition of the adsorbents influenced their adsorption characteristics, with an increase in Ca2+ and Mg2+ cations content leading to higher adsorption capacities. The improvement in adsorption capacities was attributed to the better textural properties of the adsorbents. The adsorption rate was controlled by film diffusion, intraparticle diffusion, and chemical interaction, as confirmed by X-ray diffraction analysis. The composite Zr-Ca-Mg phosphates showed suitable kinetics parameters and sorption capacities for heavy metals removal.
JOURNAL OF WATER PROCESS ENGINEERING
(2023)
Article
Materials Science, Composites
Valeria A. Balybina, Artur N. Dran'kov, Oleg O. Shichalin, Natalia Yu. Savel'eva, Nadezhda G. Kokorina, Zhanna C. Kuular, Nikita P. Ivanov, Svetlana G. Krasitskaya, Andrei I. Ivanets, Evgeniy K. Papynov
Summary: A series of sorption materials based on layered double hydroxides were successfully obtained using a facile and environmentally friendly method. These materials have a highly organized crystalline structure and stable properties. The research shows that they have excellent removal capacity for U(VI) in water media of medium salinity.
JOURNAL OF COMPOSITES SCIENCE
(2023)
