Article
Chemistry, Physical
Oliver Pauli, Achim Ecker, Alvaro Cruz-Izquierdo, Alessandra Basso, Simona Serban
Summary: A novel FT-IR microscopy method was developed to analyze the diffusion of lipase CalB in different resins. The study found that the kinetic of immobilization, distribution, and activity of the enzyme varied between the hydrophobic and hydrophilic resins.
Article
Chemistry, Applied
Sara Arana-Pena, Nathalia S. Rios, Diego Carballares, Luciana R. B. Goncalves, Roberto Fernandez-Lafuente
Summary: CALB and CRL showed similar properties under different immobilization conditions, while RML displayed significant changes. The effects of immobilization conditions on substrate activity and stability vary greatly, requiring careful selection based on specific circumstances.
Article
Engineering, Chemical
Zonglin Gu, Mengru Duan, Yusong Tu
Summary: The study successfully designs a RO membrane composed of fluorinated graphene nanochannels using molecular dynamics simulation, achieving high water permeation and almost complete ion rejection. The unique desalination performance of the F-GRA channels is attributed to their negatively charged surface, hydrophobicity, and low water friction, making them more promising than other nanomaterials. Additionally, calculations show that water molecules have a lower free energy barrier than ions when passing through the F-GRA channels, indicating a favorable water transport energetically.
Review
Biochemistry & Molecular Biology
F. Rafiee, M. Rezaee
Summary: Immobilized enzymes, particularly lipase on chitosan support, have attracted significant attention due to their advantages in industry and biochemistry. This review highlights the recent studies on lipase immobilization and discusses the potential solutions for current limitations.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2021)
Article
Chemistry, Physical
Yi-Tao Xu, Joyce Li, Mark J. MacLachlan
Summary: This study demonstrates the first preparation of stable hydrophobic graphene oxide (GO) photonic liquids, which can achieve tunable reflection wavelength in different hydrophobic liquid media with improved stability compared to aqueous GO suspensions. Hydrophobic additives effectively mediate the self-assembly of GO through an entropy-driven depletion mechanism, allowing the production of tunable photonic liquids without adjusting GO concentrations. Additionally, simultaneous reflection of infrared and visible light can be achieved, enabling infrared photonic GO liquids to display visible colors.
NANOSCALE HORIZONS
(2022)
Article
Multidisciplinary Sciences
Atefeh Hassanli, Sara Daneshjou, Bahareh Dabirmanesh, Khosro Khajeh
Summary: This study immobilized cABC I on graphene oxide (GO) to enhance the enzyme's stability and delivery efficiency. The immobilized enzyme had a greater Km and a lower Vmax value compared to the free enzyme, and showed improved stability at different temperatures.
SCIENTIFIC REPORTS
(2023)
Article
Biochemistry & Molecular Biology
Meiling Zhang, Seung-Hyun Jun, Youngho Wee, Han Sol Kim, Ee Taek Hwang, Jongmin Shim, Sang Youn Hwang, Jinwoo Lee, Jungbae Kim
Summary: In this study, a nanoscale enzyme reactor (NER) for lipase from Rhizopus oryzae was prepared, which showed high stability and activity. The NER demonstrated great potential as an environmentally-friendly nanobiocatalyst for various lipase applications, including biodiesel production.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2022)
Article
Chemistry, Physical
Shyamapada Patra, N. Usha Kiran, Pratap Mane, Brahmananda Chakraborty, Laxmidhar Besra, Sriparna Chatterjee, Shyamal Chatterjee
Summary: In this work, hydrophilic MXenes have been transformed into hydrophobic ones by low-energy N+ ion irradiation at different fluences. The removal of surface functional groups and the change in structure contribute to the hydrophobicity of irradiated MXenes. The improved electrical conductivity of irradiated MXenes can be attributed to the preferential sputtering of functional groups.
SURFACES AND INTERFACES
(2023)
Article
Chemistry, Physical
Huanqin Peng, Xin Ming, Kai Pang, Yanru Chen, Ji Zhou, Zhen Xu, Yingjun Liu, Chao Gao
Summary: This study presents an efficient catalytic graphitization approach to fabricate highly conductive graphene papers at lower annealing temperature. The use of boron catalyst facilitates the recovery of structural defects and improves the degree of graphitization. This effective strategy could also be helpful in the fabrication of other kinds of highly conductive graphene macroscopic materials.
Article
Biotechnology & Applied Microbiology
Panliang Zhang, Jing Chen, Bizhu Sun, Chenrui Sun, Weifeng Xu, Kewen Tang
Summary: Immobilization of Candida antarctica lipase A onto metal-organic framework supports significantly improves its efficiency in enantioselective hydrolysis reaction, with the hydrophobic nature of ZIF-8 contributing to this enhancement.
BIOCHEMICAL ENGINEERING JOURNAL
(2021)
Article
Agricultural Engineering
Ehsan Parandi, Maryam Safaripour, Nazanin Mosleh, Majid Saidi, Hamid Rashidi Nodeh, Bahareh Oryani, Shahabaldin Rezania
Summary: This research investigates the utilization of a modified biocatalyst, MTiGO@CALB nanocomposite, in transesterifying triglycerides from waste cooking oil to fatty acid methyl esters (FAMEs). The physicochemical characteristics of the biocatalyst were examined using various techniques. The highest immobilization efficiencies and activity recovery were achieved at specific operating conditions. The findings highlight the potential of the bio-nanocomposite as an efficient catalyst for biodiesel production.
BIOMASS & BIOENERGY
(2023)
Article
Biochemistry & Molecular Biology
Fatemeh Aghabeigi, Hasan Nikkhah, Hamid Zilouei, Mehdi Bazarganipour
Summary: Candida rugosa lipase was successfully immobilized on NiFe2O4-GO, which improved the thermal and pH stability of the enzyme. The immobilized lipase showed a higher retention of activity at high temperatures and alkaline conditions compared to the free enzyme. The immobilized lipase also exhibited reusability and resistance to hydrolysis.
PROCESS BIOCHEMISTRY
(2023)
Article
Biochemistry & Molecular Biology
Jose R. Guimaraes, Diego Carballares, Javier Rocha-Martin, Paulo W. Tardioli, Roberto Fernandez-Lafuente
Summary: In this study, lipases from Candida antarctica and Thermomyces lanuginosus were immobilized and chemically or physically modified. The modifications affected the enzyme activities, stability, and metal mineralization also influenced the enzyme features. The previous enzyme modifications altered the effects of mineralization on enzyme properties.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Chemistry, Physical
Lim Wen Yao, Fahad Saleem Ahmed Khan, Nabisab Mujawar Mubarak, Rama Rao Karri, Mohammad Khalid, Rashmi Walvekar, Ezzat Chan Abdullah, Shaukat Ali Mazari, Awais Ahmad, Mohammad Hadi Dehghani
Summary: Enzyme immobilization improves stability, reusability, and removal efficiency of dyes. In this study, Lipase enzyme was immobilized on Graphene Oxide (GO) for the removal of Azo dyes from industrial wastewater. The immobilization efficiency and enzyme activity were investigated by varying Lipase concentration, pH, and temperature. The results showed that the highest immobilization efficiency and enzyme activity were achieved at an optimum Lipase concentration of 6 mg/mL, pH 8.0, and temperature of 40 degrees C. The immobilized Lipase demonstrated good dye removal performance, with a maximum removal efficiency of 89.47% at 240 min contact time and 5 mg/L initial dye concentration. Furthermore, the immobilized Lipase could be reused for up to four cycles. This study highlights the significant impact of immobilized Lipase on GO in various industrial sectors.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Chemistry, Applied
Sean M. Garvey, Justin L. Guice, Morgan D. Hollins, Caroline H. Best, Kelly M. Tinker
Summary: The objective of this study was to test the hydrolytic efficacy of 6 fungal enzymes in the INFOGEST static in vitro simulation of gastrointestinal (GI) digestion. The study found that these enzymes improved the hydrolysis of dietary protein, lipid, and carbohydrate under simulated gastric or GI conditions, and the combination of these enzymes enhanced macronutrient digestion. The study also validated the efficacy of these enzymes in compromised digestive conditions.
Article
Energy & Fuels
Beyene Hagos Aregawi, Hoang Chinh Nguyen, Chun-Chong Fu, Hwai Chyuan Ong, Colin J. Barrow, Chia-Hung Su, Shao-Jung Wu, Horng-Yi Juan, Fu-Ming Wang
Summary: This study developed a novel catalyst-free electrolysis process using an ionic liquid as a supporting electrolyte for biodiesel production. The ionic liquid, 1-ethyl-3-methylimidazolium chloride ([Emim]Cl), exhibited the highest electrical conductivity and best electrolytic performance for transesterification. Optimized reaction conditions resulted in a maximum biodiesel yield of 97.76%, and [Emim]Cl could be efficiently reused for multiple cycles.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2023)
Article
Energy & Fuels
Hoang Chinh Nguyen, Thanh Truc Pham, Nguyen Phuong Nguyen, Beyene Hagos Aregawi, Chun-Chong Fu, Colin J. Barrow, Chia-Hung Su, Shao-Jung Wu, Horng-Yi Juan
Summary: This study developed a new approach involving DBU-catalyzed one-pot reaction to produce biodiesel with enhanced reaction efficiency.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2023)
Article
Green & Sustainable Science & Technology
Priyanshu Jain, Shovon Mandal, Amritpreet Kaur Minhas, Munish Puri, Colin J. Barrow
Summary: Burning agricultural waste leads to local air pollution and global warming. A study aims to develop efficient nano-silica-based biocatalysts for concentrating omega-3 fatty acids in algal oil. The immobilized nano-systems created using physical adsorption approach showed the highest enzyme activity and binding efficiency.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Chemistry, Multidisciplinary
Dulini Fernando, Motilal Mathesh, Jackie Cai, Wenrong Yang
Summary: A facile polymer-directed metal-organic framework (MOF)-based nanoarchitechtonics was developed to enhance the catalytic efficiency of multi-enzyme cascade reactions through substrate channeling. The new method involved the simultaneous synthesis of MOF and co-immobilization of enzymes, resulting in a closely packed nanoarchitecture with enhanced substrate channeling. The enzyme cascade reaction system showed a 3.5-fold increase in catalytic activity compared to free enzymes.
Article
Chemistry, Analytical
Yingqin Zhang, Ying Liao, Xuehu Yin, Yanli Zhang, Zhi Yang, Hongbin Wang, Wenrong Yang, Pengfei Pang
Summary: An electrochemical biosensor based on rolling circle amplification (RCA) was developed for the detection of lead ion (Pb2+). The biosensor utilized Pb2+-dependent DNAzyme and DNA-templated silver nanoclusters (DNA-AgNCs) for amplification, and showed high sensitivity and selectivity for Pb2+ analysis in the range of 1 pM-10 μM with a detection limit of 0.3 pM. This strategy has potential applications in real water samples and environment analysis.
MICROCHEMICAL JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Ru Feng, Hanqing Yin, Fuhao Jin, Wei Niu, Wanting Zhang, Jingquan Liu, Aijun Du, Wenrong Yang, Zhen Liu
Summary: This study demonstrates that NbB2 nanoflakes exhibit excellent selectivity and durability in ambient electrochemical N-2 reduction reaction, leading to efficient NH3 production. The high selectivity is attributed to the presence of abundant active vacancies on the surface, which makes the N-N triple bonds in N-2 molecule easier to break for NH3 production.
Article
Engineering, Chemical
Minghang Chu, Rana Dildar Khan, Ying Zhou, Osman Tuncay Agar, Colin J. Barrow, Frank R. Dunshea, Hafiz A. R. Suleria
Summary: In this study, ten mushroom species were analyzed for their phenolic content and antioxidant activity. The results showed that most of the mushroom varieties had high phenolic content and strong antioxidant activity, with shiitake mushrooms standing out in particular. The research also identified 22 phenolic compounds in the mushroom samples. These findings provide a scientific basis for the use of mushrooms in functional foods and other industries.
Review
Engineering, Chemical
Ziyao Liu, Thaiza S. P. de Souza, Brendan Holland, Frank Dunshea, Colin Barrow, Hafiz A. R. Suleria
Summary: The rapid growth of the global population and changes in lifestyle have led to a significant increase in food waste from various industrial, agricultural, and household sources. Nearly one-third of the food produced annually is wasted, resulting in severe resource depletion. This review explores the potential of utilizing bioactive compounds in food waste for the production of value-added products.
Article
Biochemistry & Molecular Biology
Jianxiang Huang, Kevin C. C. Chan, Ruhong Zhou
Summary: The emergence of SARS-CoV-2 has caused a global alarm, leading to extensive research on repurposing drugs to treat the infection. Researchers have found that a metabolite of the drug fenofibrate, called fenofibric acid (FA), can destabilize the receptor-binding domain (RBD) of the viral spike protein, inhibiting its binding to the hACE2 receptor. Through molecular dynamics simulations, the study identified a potential cryptic binding site for FA on the RBD and demonstrated that FA alters the conformation of the binding loop, reducing its affinity for ACE2. This research provides new insights for designing SARS-CoV-2 inhibitors targeting cryptic sites on the RBD.
Article
Biochemistry & Molecular Biology
Audrey Yue Vern Theah, Taiwo O. Akanbi
Summary: This study investigated the inhibitory effects of hydroxytyrosol, alpha-tocopherol, and ascorbyl palmitate on lipid peroxidation in squid, hoki, and prawn during deep-fat frying and refrigerated storage. The results showed that deep-fat frying increased lipid oxidation in the seafood, but antioxidants delayed this process. Alpha-tocopherol was the least effective antioxidant, while hydroxytyrosol was the most effective but couldn't be used multiple times for frying.
Review
Agriculture, Multidisciplinary
Ananya Padmakumar, Chowdary Pavani, Kalyani Eswar, Lingxue Kong, Wenrong Yang, Subramanium Gopalakrishnan, David Miles Cahill, Aravind Kumar Rengan
Summary: The use of bacterial biocontrol agents (BBCAs) in plant protection has increased due to the rising awareness of chemical risks and the need for sustainable agriculture. Nanotechnology has facilitated the development of efficient and ecologically sound nanoformulations, such as bacteria premised nanobiopesticides (B-NBPs). These B-NBPs are synthesized using nanomaterials with amended properties at the nanoscale. This article provides an overview of BBCAs and their antagonistic mechanisms, focusing on the significance of BNPs in plant infection management and addressing concerns related to the efficacy of B-NBPs.
ACS AGRICULTURAL SCIENCE & TECHNOLOGY
(2023)
Article
Chemistry, Physical
Na Kong, Jin He, Wenrong Yang
Summary: Controlling and understanding the chemistry of molecular junctions is important in various fields. Stochastic single-entity collision electrochemistry (SECE) provides powerful tools to study single entities at the nanoscale. Molecular junctions formed by SECE collision have potential applications in monitoring molecular dynamics with high spatial and temporal resolution.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Article
Chemistry, Analytical
Yuru Min, Donglei Fu, Honglei Liu, Chenyao Yuan, Lei Wang, Mengyu Cao, Aowei Sun, Wenrong Yang, Jingquan Liu
Summary: Oxalyldihydrazide has been found to be an effective analytical reagent for determining formaldehyde and its analogs. By using UV-vis spectrophotometry, formaldehyde and other similar compounds like acetaldehyde, acetone, and benzaldehyde can be detected in solution. This method is also applicable for detecting formaldehyde in clams with high selectivity and sensitivity.
CHINESE JOURNAL OF ANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Xiangyu Zhang, Kai Zhao, Hong Li, Yanhui Li, Wenrong Yang, Jingquan Liu, Da Li
Summary: Developing noble-metal-free bifunctional electrocatalysts with high catalytic ability at an effective cost for hydrogen production via water-splitting is crucial. The plasma engraving strategy is used to synthesize N-doped CoFeS on cobalt foam with a multi-interface and defect hierarchical structure.
NEW JOURNAL OF CHEMISTRY
(2023)
Review
Chemistry, Multidisciplinary
Linghong Shi, Thaiza Serrano Pinheiro de Souza, Farhad Ahmadi, Ali Imran, Frank R. Dunshea, Colin Barrow, Hafiz Ansar Rasul Suleria
Summary: This review investigates the potential of utilizing date by-products and waste as an eco-friendly resource for various chemical and biological processes. It provides an overview of the chemical and nutritional composition of dates and their by-products, as well as the beneficial utilization methods for date waste. The review also discusses the current challenges and future prospects in date waste valorization.
APPLIED SCIENCES-BASEL
(2023)