Article
Engineering, Environmental
Jian Peng, Enhui Wu, Xiaoxuan Lou, Qian Deng, Xiaohong Hou, Chongning Lv, Qi Hu
Summary: In this study, a MOF/PVA/Lac composite with excellent enzymatic properties for degrading AQs and removing alizarin green efficiently was synthesized. The degradation product p-toluidine was identified using molecular docking, mass spectrometry, and 2DNMR, confirming the reaction mechanism C-alpha oxidation.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Materials Science, Multidisciplinary
Anamul Hoque Bhuiyan, Takuma Nagakawa, Mohammad Zakaria, Koji Nakane
Summary: An enzyme-immobilized PVB-Zr hybrid tube was developed and shown to exhibit stability and higher activity in different environments compared to free enzymes. The Km value of immobilized enzymes was slightly higher, but they retained activity over multiple reaction cycles. Furthermore, immobilized lipase in organic solvents demonstrated high catalytic conversion efficiency.
JOURNAL OF MATERIALS SCIENCE
(2021)
Article
Polymer Science
Ching-Wen Lou, Meng-Chen Lin, Chen-Hung Huang, Mei-Feng Lai, Bing-Chiuan Shiu, Jia-Horng Lin
Summary: This study prepared PVA/WS-CS nanofibrous membranes using electrospinning technology, which have small fiber diameter and high filtration efficiency, and exhibit bacteriostatic efficacy against Staphylococcus aureus.
Article
Biochemistry & Molecular Biology
Milos Radosavljevic, Steva Levic, Miona Belovic, Jelena Pejin, Aleksandra Djukic-Vukovic, Ljiljana Mojovic, Viktor Nedovic
Summary: The study demonstrates that immobilized L. rhamnosus cells in PVA cryogel can be successfully utilized in stable repeated batch fermentations on low-cost fermentation media without loss of cell activity and LA fermentation capability.
PROCESS BIOCHEMISTRY
(2021)
Article
Chemistry, Physical
Umran Duru Kamaci, Aysegul Peksel
Summary: Phytase was successfully immobilized into polyvinyl alcohol-sodium alginate (PVA-SA) electrospun nanofiber, leading to enhanced catalytic activity. Characterization of the PVA-SA nanofibers was conducted using SEM, XRD, FT-IR, TG, and DSC techniques, showing a fiber diameter of around 32 nm.
Article
Biotechnology & Applied Microbiology
Zhi-Hao Zhong, Yu-Qing Zhang
Summary: A novel E. coli cell-immobilizing polyvinyl alcohol hydrogel membrane (ECI-PVAHM) was prepared, which has high water stability, transparency, and mechanical strength, and does not affect the division, proliferation, and metabolic activity of the bacteria. This technology has potential applications in molecular biology and biopharmaceutical production.
MICROBIAL CELL FACTORIES
(2022)
Article
Biochemistry & Molecular Biology
Mansour Shahedi, Zohreh Habibi, Maryam Yousefi, Jesper Brask, Mehdi Mohammadi
Summary: In this study, CALB and TLL enzymes were co-immobilized on epoxy functionalized silica gel for biodiesel production, with optimized reaction conditions using response surface and central composite rotatable design methods, resulting in high yield and biodiesel production close to the predicted value.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2021)
Article
Chemistry, Physical
Miquel Garcia-Bofill, Peter W. Sutton, Marina Guillen, Gregorio Alvaro
Summary: Statins inhibit the synthesis of LDL-cholesterol related to cardiovascular diseases. ADH99 and NOX are used for the oxidation of chlorolactol to chlorolactone, leading to improved reaction yield and efficiency.
APPLIED CATALYSIS A-GENERAL
(2021)
Article
Biotechnology & Applied Microbiology
Amir Amani, Sara Taghavi Kalajahi, Fatemeh Yazdian, Soheyl Mirzababaei, Hamid Rashedi, Mohammad Ali Faramarzi, Mahboobeh Vahidi
Summary: This study immobilized urease on chitosan/PVA nanofibers using both adsorption and crosslinking methods. By comparing different ratios of chitosan and PVA, the best conditions for enzyme immobilization were determined. Covalently immobilized enzyme showed higher activity and stability, and was effective in removing thiourea.
BIOTECHNOLOGY PROGRESS
(2022)
Article
Biochemistry & Molecular Biology
Katarzyna Jankowska, Ziran Su, Sigyn Bjork Sigurdardottir, Maciej Staszak, Manuel Pinelo, Jakub Zdarta, Teofil Jesionowski
Summary: Immobilized enzymes are widely used in various fields, but protecting them against harsh conditions is a challenge; proper supports and surface modifiers are crucial for retaining enzyme activity.
BIOORGANIC CHEMISTRY
(2021)
Article
Agricultural Engineering
Yong Wang, Kai Huo, Lijuan Gao, Di Cai, Bin Wang, Guoqun Zhao, Jinlong Liu, Jianxiong Hao
Summary: The research focused on improving L-lactic acid fermentation by using PVA/Fe3O4/LAB composite, which demonstrated excellent mass transfer and structural stability properties. It could maintain stable fermentation performance within 3 freeze-thaw cycles, showing potential for enhancing L-lactic acid production.
INDUSTRIAL CROPS AND PRODUCTS
(2022)
Article
Biochemistry & Molecular Biology
Karolina Labus, Lukasz Radosinski, Piotr Kotowski
Summary: The research investigates the effects of adding polyvinyl alcohol (PVA) to gelatin-based hydrogels on their functional properties, comparing the properties of hydrogels with different PVA content. It explores the use of these matrices for creating immobilized invertase preparations with improved stability, and proposes a computational tool for predicting material properties based on component proportions. Increasing PVA content in gelatin hydrogels led to higher packaging density, swelling, and water absorption, but showed a decrease in degradation resistance and compressive strength. Overall, the study suggests promising potential for using gelatin/PVA hydrogels as stable biocatalysts in industrial applications.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)
Article
Biochemistry & Molecular Biology
Fei Zhu, Sheng Hu, Weirui Zhao, Lehe Mei
Summary: This study presents a novel method using immobilized glutamate decarboxylase (GAD) for GABA synthesis. The immobilized GAD showed increased stability and improved substrate affinity, making it suitable for continuous-scale GABA biosynthesis.
Article
Construction & Building Technology
Linyu Wu, Linchang Miao, Xiaohao Sun, Hengxing Wang
Summary: EICP combined with PVA improves the solidification of aeolian sand and enhances its durability. In practical applications, 3% PVA concentration is sufficient for sand treatment. SEM images and mercury intrusion capillary pressure tests indicate that PVA films enhance the bonding between soil particles, fill large pores in the soil, and improve the performance of the EICP+PVA-solidified sand.
JOURNAL OF MATERIALS IN CIVIL ENGINEERING
(2021)
Article
Automation & Control Systems
Afsaneh Taheri, Mahdi Kashaninejad, Ali Mohammad Tamaddon, Mohammad Ganjeh, Seid Mahdi Jafari
Summary: Complex coacervation is a common technique used for encapsulating nutraceuticals and modifying biopolymeric properties. This study evaluated the complex coacervation between cress seed mucilage and beta-Lactoglobulin, and used Response Surface Methodology (RSM) and Adaptive Neuro Fuzzy Inference System (ANFIS) to predict and optimize the size and zeta potential of the complexes. The results showed that CSM concentration and pH were the most important variables, and ANFIS was able to accurately predict and control the properties of the complexes.
CHEMOMETRICS AND INTELLIGENT LABORATORY SYSTEMS
(2022)
Article
Environmental Sciences
Ijlal Raheem, Nabisab Mujawar Mubarak, Rama Rao Karri, Nadeem Hussain Solangi, Abdul Sattar Jatoi, Shaukat Ali Mazari, Mohammad Khalid, Yie Hua Tan, Janardhan Reddy Koduru, Guilherme Malafaia
Summary: Water consumption has been increasing in recent years due to urbanization and industry, leading to depletion of global water resources. Strategies for removing harmful elements from wastewater are critical. Membrane separation technology, specifically MXene-based membranes, shows promise for water purification. This review provides an overview of MXenes, their synthesis, surface chemistry, membrane construction, and applications for water purification. Future prospects of MXene-based materials for diverse applications are also discussed.
Article
Chemistry, Physical
Nabisab Mujawar Mubarak, J. N. Sahu, Rama Rao Karri, E. C. Abdullah, Manoj Tripathi
Summary: A new method for synthesizing carbon nanofibers by gas-phase with microwave-assisted chemical vapour deposition was introduced. The effects of hydrogen flow rate, microwave power, radiation time, and gas ratio were investigated. The optimized conditions for carbon nanofibers production were determined. The synthesized carbon nanofibers showed vertical alignment with a uniform diameter and high purity.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Environmental Sciences
Abdul Sattar Jatoi, Nabisab Mujawar Mubarak, Zubair Hashmi, Nadeem Hussain Solangi, Rama Rao Karri, Tan Yie Hua, Shaukat Ali Mazari, Janardhan Reddy Koduru, Akram Alfantazi
Summary: With the rapid growth of industrialization, various ecological contaminants in gaseous, liquid, and solid forms are released into ecosystems, arousing global attention. Efficient removal of these environmental pollutants is essential to protect public health and biodiversity. The development of advanced nanomaterials for pollutant removal has gained significant importance, while innovative methods to identify and prevent hazardous contaminants from entering the environment are being explored. MXene, with its unique physicochemical and mechanical properties, high specific surface area, physiological compatibility, strong electrodynamics, and enhanced surface wettability, has emerged as a promising material for environmental applications.
Article
Environmental Sciences
Nadeem Hussain Solangi, Nabisab Mujawar Mubarak, Rama Rao Karri, Shaukat Ali Mazari, Suresh Kumar Kailasa, Akram Alfantazi
Summary: MXenes are 2D nanostructured materials that are gaining popularity in various fields for their exceptional characteristics and desalination capability. They have been used in the production of batteries, semiconductors, water desalination membranes, and hydrogen storage. MXenes have shown great potential in environmental remediations, surpassing conventional materials in treating groundwater and wastewater contamination. The review paper focuses on the desalination capacity of MXenes and their composites, discussing their characteristics, synthesis techniques, ion-rejection capability, and different desalination methods.
Review
Chemistry, Inorganic & Nuclear
Nadeem Hussain Solangi, Rama Rao Karri, Shaukat Ali Mazari, Nabisab Mujawar Mubarak, Abdul Sattar Jatoi, Guilherme Malafaia, Abul Kalam Azad
Summary: In recent years, MXene has attracted significant interest in the field of photocatalysis due to its unique physical and chemical characteristics. It has shown excellent performance in the photodegradation of organic compounds and CO2 conversion into value-added products. MXene-based composites have been found to possess even better photodegradation activity compared to pristine MXene. The functional groups on the surface of MXene have a significant impact on its photocatalytic performance. This study provides a comprehensive overview of recent investigations on MXene-based photocatalysts, discussing their physicochemical characteristics, synthesis routes, and future challenges.
COORDINATION CHEMISTRY REVIEWS
(2023)
Article
Environmental Sciences
Xin Xiong Chang, Nabisab Mujawar Mubarak, Rama Rao Karri, Yie Hua Tan, Mohammad Khalid, Mohammad Hadi Dehghani, Inderjeet Tyagi, Nadeem A. Khan
Summary: In this study, cellulose nanowhiskers (CNW)/chitosan nanocomposite films were synthesized using deep eutectic solvents (DES) to change the chemical structures. The incorporation of CNW into chitosan films resulted in sharper and stronger peaks, as well as an infusion of more amide elements. The mechanical properties of the nanocomposite films, including tensile strength (TS), Young's modulus (YM), and elongation at break, were enhanced with CNW filler, although YM and TS decreased due to the hygroscopic nature of the films. DES, as a green solvent, has the potential to replace ionic liquids in materials synthesis while reducing the environmental impact of chemical production.
ENVIRONMENTAL RESEARCH
(2023)
Article
Multidisciplinary Sciences
Muhammad Amar, Naveed Akram, Ghulam Qadar Chaudhary, Salim Newaz Kazi, Manzoore Elahi M. Soudagar, Nabisab Mujawar Mubarak, Md Abul Kalam
Summary: The use of solar energy is a prominent strategy for addressing energy management challenges. Flat plate solar collectors, powered by nanofluids, are shown to have improved thermal efficiency compared to conventional heat transfer fluids. This research examines the effects of a novel green nanofluid on the performance of flat plate solar collectors.
SCIENTIFIC REPORTS
(2023)
Article
Environmental Sciences
Nadeem Hussain Solangi, Nabisab Mujawar Mubarak, Rama Rao Karri, Shaukat Ali Mazari, Abdul Sattar Jatoi
Summary: In recent years, electroanalysis has made significant progress, particularly in the development of electrochemical sensors. These sensors include photoelectrochemical and electro-chemiluminescence sensors, which combine optical techniques with traditional electrochemical bio/non-biosensors. Various methods have been designed for commercial applications to detect biological and non-biological markers for different diseases. The study extensively discusses MXene-based electrochemical sensors, photoelectrochemical sensors, enzyme-based biosensors, immunosensors, aptasensors, electro-chemiluminescence sensors, and electrochemical non-biosensors, highlighting their performance in detecting various substances and contaminants, as well as the challenges and prospects for MXene-based electrochemical sensors.
ENVIRONMENTAL RESEARCH
(2023)
Article
Environmental Sciences
Muhammad Waseem, Awais Ahmad, Muhammad Sagir, Umer Younas, Zohaib Saeed, Muhammad Pervaiz, Faisal Ali, Ahmed Muteb Aljuwayid, Mohamed A. Habila, Rama Rao Karri
Summary: A novel nanocomposite V2O5/TiO2/g-C3N4 was synthesized by a simple hydrothermal method, which exhibited excellent scavenging of free radicals and photocatalytic ability for dye degradation, indicating its potential for environmental remediation.
ENVIRONMENTAL RESEARCH
(2023)
Article
Environmental Sciences
Nadeem Hussain Solangi, Shaukat Ali Mazari, Nabisab Mujawar Mubarak, Rama Rao Karri, Natarajan Rajamohan, Dai-Viet N. Vo
Summary: MXene is a magical class of 2D nanomaterials with various advantageous characteristics, but its application in the biomedical industry is limited due to poor physiological stability and lack of controlled drug release. These limitations can be overcome by forming composites with other 2D materials. The surface functionalities of MXene play a crucial role in modifying its characteristics. This review discusses MXene synthesis, the role of surface functionalities, and its applications in biomedicine, including antibacterial activity, regenerative medicine, CT scan capability, drug delivery, diagnostics, MRI, and biosensing capability. The potential of MXene-based materials in biomedical applications is highlighted along with future challenges.
ENVIRONMENTAL RESEARCH
(2023)
Article
Environmental Sciences
Cui Jun Hor, Yie Hua Tan, Nabisab Mujawar Mubarak, Inn Shi Tan, Mohd Lokman Ibrahim, Peter. Nai. Yuh. Yek, Rama Rao Karri, Mohammad Khalid
Summary: Biodiesel production has limitations, but hydrotreated vegetable oil (HVO) can overcome these limitations. Waste sludge palm oil (SPO) was used as a feedstock for HVO production. The study shows that SPO-HVO production can reduce CO2 emissions and total annual production cost.
ENVIRONMENTAL RESEARCH
(2023)
Article
Engineering, Chemical
Nadeem A. Khan, Simranjeet Singh, Eduardo Alberto Lopez-Maldonado, N. Pavithra, Perla Fabiola Mendez-Herrera, Juan Ramon Lopez-Lopez, Umair Baig, Praveen C. Ramamurthy, Nabisab Mujawar Mubarak, Rama Rao Karri, Isam H. Aljundi
Summary: Substances called emerging pollutants, including pharmaceuticals, pesticides, cosmetics, cleaning, and personal care products, have been detected and their removal from wastewater is crucial. Membrane Bioreactor (MBR) technology is efficient in treating high organic loads and effectively removing emerging contaminants. To further remove hazardous micropollutants, tactics such as using high-retention membranes, adding functional materials, and including additional procedures for effluent treatment can be employed, although further investigation is required to assess their technical and economic viability.
Article
Thermodynamics
Homa Hosseinzadeh-Bandbafha, Yie Hua Tan, Jibrail Kansedo, N. M. Mubarak, Rock Keey Liew, Peter Nai Yuh Yek, Mortaza Aghbashlo, Hui Suan Ng, William Woei Fong Chong, Su Shiung Lam, Meenakshi Verma, Wanxi Peng, Meisam Tabatabaei
Summary: Climate change awareness has led to research on non-fossil energy sources, including biodiesel. The use of waste-oriented oils and catalysts is a promising approach to ensure sustainable biodiesel production. However, the environmental sustainability of such platforms must be carefully assessed before commercialization.
Article
Materials Science, Multidisciplinary
Ji Wei Suen, Naveen Kumar Elumalai, Sujan Debnath, Nabisab Mujawar Mubarak, Chye Ing Lim, Mohan M. Reddy, Mohammad Khalid
Summary: Ionogels are synthesized by confining ionic liquids within a solid/polymer matrix and received wide attention due to their high ionic conductivity and mechanical properties. A detailed understanding of the inherent capacitive behavior is indispensable to ensure their practical application in rechargeable lithium-ion batteries, sensors, and supercapacitors.
ECS JOURNAL OF SOLID STATE SCIENCE AND TECHNOLOGY
(2023)
Article
Energy & Fuels
Nadeem Hussain Solangi, Rama Rao Karri, Nabisab Mujawar Mubarak, Shaukat Ali Mazari, Abul Kalam Azad
Summary: MXene-based 2D materials with larger surface area are hydrophilic, flexible, environmentally friendly, and have high volumetric capacitance. MXenes are excellent materials for hydrogen storage, electrodes, and energy storage devices due to their remarkable characteristics. Recent investigations have reported on MXene-based composite materials with appealing properties for photocatalysis and solar energy uses.
JOURNAL OF ENERGY STORAGE
(2023)
