Article
Agricultural Engineering
Victory Fiifi Dsane, Haejun Jeon, Yuri Choi, Sohee Jeong, Younggyun Choi
Summary: Magnetite is an iron-rich carrier that can enhance the activity and aggregation of anammox bacteria. In this study, different-sized samples from a granulation reactor were used, and it was found that larger granules had higher iron content and improved microbial cell density. The specific anammox activity increased with granule size, and the heme c content was also higher in larger granules. The extracellular polymeric substances (EPS) analysis showed differences in secretion intensity and protein structures among the different sizes. The relative abundance of Brocadia Sinica also increased with granule size. This study highlights the importance of in-depth EPS analysis beyond traditional yield and major content analysis.
BIORESOURCE TECHNOLOGY
(2023)
Article
Chemistry, Physical
Ehsan Khoshkalam, Amir Fotovat, Akram Halajnia, Hossein Kazemian, Hossein Eshghi
Summary: This research studied the stability and reactivity of green iron oxide nanoparticles (EL-Fe NPs) synthesized from Eucalyptus globulus leaf extract in removing NO3- ions from polluted water. Various characterization techniques were used to analyze the EL-Fe NPs, and the effect of different factors such as contact time, pH, KCl salt, and anions on the adsorption of NO3- by EL-Fe NPs was evaluated. The results showed that EL-Fe NPs had irregular nano-particulate structures and exhibited strong adsorption capacity for NO3- at certain conditions, but the adsorption was influenced by pH, salt concentration, and the presence of phosphate ions.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Chemistry, Multidisciplinary
William R. Diephuis, Anna L. Molloy, Lindsey L. Boltz, Tristan B. Porter, Anthony Aragon Orozco, Reina Duron, Destiny Crespo, Luke J. George, Andrew D. Reiffer, Gabriela Escalera, Arash Bohloul, Carolina Avendano, Vicki L. Colvin, Natalia I. Gonzalez-Pech
Summary: The presence of arsenic in groundwater and other drinking water sources poses a significant public health concern. This study compares the performance of different iron oxide nanomaterials supported on sand for arsenic adsorption in continuous flow experiments. The results show that nanomaterials with lower agglomeration and good dispersion tend to be released during water treatment. The use of clusters of nanoparticles synthesized through a solvothermal method (cIONPs) overcomes this implementation issue and exhibits higher adsorption capacities.
Article
Biochemistry & Molecular Biology
Francesca Benini, Nicolo Bassoli, Paolo Restuccia, Mauro Ferrario, Maria Clelia Righi
Summary: Phosphorene, the 2D form of black phosphorus, has promising properties for optoelectronic and tribological applications. However, the oxidation of phosphorene layers in ambient conditions affects its performance. This study used first-principles calculations to investigate the interaction of phosphorene with oxygen and water molecules. The results show unfavorable energetics for hydroxilated and hydrogenated phosphorene layers, as well as increased water adsorption on oxidized layers.
Article
Polymer Science
Raghu K. Moorthy, Serena D'Souza, P. Sunthar, Santosh B. Noronha
Summary: The stationary phase is crucial in protein chromatography columns. Conventional resins made of acrylic polymers contribute to heterogeneous packing. A single-step scheme using functional copolymer surfaces can be used as an alternative to obtain porous adsorbents for tuning surface morphology and protein immobilization. An amphiphilic block copolymer, poly(methyl methacrylate-co-methacrylic acid), has been chosen and characterized for its potential usage in protein chromatography. It has been demonstrated to have hydrophilicity and an abundance of carboxyl groups on its surface, as well as a microporous region that could be beneficial in protein chromatography.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Hye-Jin Hong, Jungho Ryu
Summary: In this study, Cu2+ from wastewater was recovered and transformed into Cu-0 NPs, a value-added product, through continuous adsorption and chemical reduction. A biosorbent PEI@CNF and a chemical reducer hydrazine were used to achieve the conversion. The results showed that Cu-0 NPs with specific concentration and size can be obtained through this method.
Review
Engineering, Chemical
Rund Abu-Zurayk, Nour Alnairat, Aya Khalaf, Abed Alqader Ibrahim, Ghada Halaweh
Summary: This article introduces the characteristics and applications of cellulose acetate (CA), as well as topics related to CA membranes. CA membranes have important applications in water treatment, biomedical nanocomposites, household tools, and photographic films. The fouling of CA membranes is a focus of research, and the article discusses four main techniques for antifouling, including feed solution pretreatment, cleaning of the membrane surface, membrane surface modification, and surface coating.
Article
Chemistry, Multidisciplinary
Xiaoxiao Xia, Boyun Liu, Bo Zhao, Zichao Xia, Song Li
Summary: This study reports an effective approach to enhance the water adsorption rate and cooling performance of MOF-water working pairs by encapsulating hydrophilic MOP into MIL-101(Cr).
Article
Chemistry, Multidisciplinary
Haixia Wang, Karin Nienhaus, Li Shang, Gerd Ulrich Nienhaus
Summary: In this study, we investigated the interactions between positively charged MUTAB-stabilized quantum dots (QDs) and proteins, serum, and live cells using various techniques. The results showed that MUTAB-QDs have affinity towards HSA and serum, and can bind to and perforate the cell membrane. Pre-adsorption of proteins on the QD surfaces can reduce this process.
CHINESE JOURNAL OF CHEMISTRY
(2022)
Review
Chemistry, Multidisciplinary
Karin Nienhaus, Gerd Ulrich Nienhaus
Summary: Although a variety of nanoparticles have been developed for medical use, their application in clinical settings is limited. The lack of understanding of nanoparticle interactions in the bio-environment, particularly the protein corona, is a major obstacle. This article critically reviews research on the protein corona, including its structure, reversibility, time dependence, and role in nanoparticle agglomeration, highlighting the need for further mechanistic studies. The article concludes with a discussion of future research directions to enhance the understanding of the protein corona and improve the design of nanomedicines.
Article
Engineering, Environmental
Mingzhe Sun, Aamir Hanif, Tianqi Wang, Chao Yang, Daniel C. W. Tsang, Jin Shang
Summary: The development of a silica adsorbent loaded with copper nanoparticles showed efficient removal of NO2 under ambient conditions. The presence of 10 wt% copper on the silica adsorbent exhibited the best NO2 removal capacity, with a high efficiency and moderate NO release, providing a promising adsorbent for NO2 abatement. This study offers new insights into adsorbents for NO2 removal and could contribute to future research in air pollution control.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Chemistry, Analytical
Yi-Yan Bai, Zhi-Tao Feng, Yan-Ju Yang, Xiao-Yan Yang, Zhi-Ling Zhang
Summary: This study utilized current lifetime as a dynamic parameter to distinguish differently sized nanoparticles successfully. By considering current lifetime instead of current intensity, more accurate evaluation of nanoparticle sizes can be achieved.
ANALYTICAL CHEMISTRY
(2022)
Article
Biochemistry & Molecular Biology
Heena Khawaja, Erum Zahir, Muhammad Asif Asghar, Muhammad Arif Asghar
Summary: The graphene oxide surface was modified to enhance the adsorption efficiency, leading to increased adsorption capacity for malachite green. Experimental data demonstrated that the modified composite material has a higher adsorption capacity for malachite green. The nanocomposite showed promising adsorption performance and regeneration ability, highlighting its potential for practical applications.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2021)
Article
Nanoscience & Nanotechnology
Julian Heuer, Thomas Kuckhoff, Rong Li, Katharina Landfester, Calum T. J. Ferguson
Summary: The production of photocatalytic self-assembled amphiphilic polymers enables selective control over reactions based on the substrate's physical properties. By polymerizing benzothiadiazole-based photocatalysts into hydrophilic or hydrophobic compartments, we achieved stark differences in reactivity for polar substrates but similar performance for hydrophobic substrates. Additionally, the use of secondary swelling solvents led to a significant increase in conversion for a radical carbon-carbon coupling reaction.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Physical
Menglin Li, Xinpeng Wang, Jian Zhang, Yonghao Gao, Wen Zhang
Summary: This study develops a novel copper-based adsorbent using metal-organic frameworks (MOFs) to capture toxic radioiodine. The adsorbent shows high iodine uptake capacities and improved iodine selectivity.
APPLIED SURFACE SCIENCE
(2023)
Review
Polymer Science
Kamil Kayode Katibi, Khairul Faezah Yunos, Hasfalina Che Man, Ahmad Zaharin Aris, Mohd Zuhair bin Mohd Nor, Rabaah Syahidah Binti Azis
Summary: This paper critically examines and reports on recent advances in membrane and MBR treatment methods for removing EDCs, highlighting fouling challenges and mitigation strategies. The study also investigates removal mechanisms and operating factors influencing EDCs remediation. Membranes and MBR approaches have been shown to be successful and viable in eliminating various EDCs contaminants.
Article
Environmental Sciences
Mohammed Umar Abba, Hasfalina Che Man, Raba'ah Syahidah Azis, Aida Isma Idris, Muhammad Hazwan Hamzah, Mohammed Abdulsalam
Summary: This study synthesized nano-magnetite and utilized it as a sorbent to effectively remediate boron concentration in water, showing potential for sustainable industrial applications.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH
(2021)
Article
Green & Sustainable Science & Technology
Jia Boh Tan, Nur Syakina Jamali, Wei En Tan, Hasfalina Che Man, Zurina Zainal Abidin
Summary: The study evaluated the techno-economic feasibility of an on-farm biogas system utilizing cow manure, demonstrating its ability to generate electricity and additional income for farmers.
Article
Engineering, Chemical
Nurul Solehah Mohd Zaini, I. Wuled Lenggoro, Mohd Nazli Naim, Norihiro Yoshida, Hasfalina Che Man, Noor Fitrah Abu Bakar, Siti Wahidah Puasa
Summary: The study compared the adsorption of ammonium by bentonite and kaolin as adsorbents, finding that bentonite showed higher adsorption capacity for NH4+ at pH 10, while kaolin exhibited good adsorption only at low ammonium concentrations.
ADVANCED POWDER TECHNOLOGY
(2021)
Review
Fisheries
Dipika Roy Prapti, Abdul Rashid Mohamed Shariff, Hasfalina Che Man, Norulhuda Mohamed Ramli, Thinagaran Perumal, Mohamed Shariff
Summary: This study reviews the application of IoT technology in water quality monitoring in aquaculture in recent years, focusing on research methods and common water quality parameters. Most research is concentrated in the field of inland aquaculture, with less focus on marine aquaculture.
REVIEWS IN AQUACULTURE
(2022)
Article
Polymer Science
Kamil Kayode Katibi, Khairul Faezah Yunos, Hasfalina Che Man, Ahmad Zaharin Aris, Mohd Zuhair Mohd Nor, Rabaah Syahidah Azis
Summary: Recent research focused on synthesizing magnetic biochar from palm kernel shell as an effective adsorbent to remove Bisphenol A (BPA) from water. The magnetic biochar showed superior efficiency in removing BPA compared to neat biochar, with the adsorption mechanism driven by electron acceptor-donor interaction, hydrophobic interaction, and hydrogen bond.
Review
Agronomy
Nur Atikah Mohidem, Norhashila Hashim, Rosnah Shamsudin, Hasfalina Che Man
Summary: Rice is a vital food source for over half the world's population, providing essential nutrients and antioxidant properties that can help prevent cardiovascular disease and diabetes. This review highlights global rice production, consumption, and nutritional values, as well as introducing a new method for storage, drying, and grading of rice. It also discusses the environmental impacts of rice cultivation and policy directions.
Article
Engineering, Environmental
A. F. Aili Hamzah, M. H. Hamzah, N. I. Mazlan, H. Che Man, N. S. Jamali, S. I. Siajam, P. L. Show
Summary: This study optimized subcritical water pretreatment conditions for maximum methane production from pineapple waste. The results showed that subcritical water pretreatment increased methane yield and biogas yield compared to untreated waste. The study also analyzed the compositional changes and structural modifications of the waste after pretreatment. The findings suggest that subcritical water pretreatment is a promising method to enhance the anaerobic co-digestion process.
Review
Materials Science, Multidisciplinary
Madiha Fathi Elmahaishi, Raba'ah Syahidah Azis, Ismayadi Ismail, Farah Diana Muhammad
Summary: The elevated levels of electromagnetic radiation emitted by electronic instruments, communication devices, and information processing technologies have raised concerns, leading to efforts in developing unique nano-materials for enhancing the electromagnetic absorption properties of microwave-absorbing materials. This article discusses the basic theory of electromagnetic microwave absorption, highlights the materials and their performance, and elaborates on strategies to enhance the absorption properties. Metal-based composites show high efficiency in achieving desired magnetic and dielectric characteristics. The article also provides a comprehensive review of microwave absorption materials, their mechanisms, and the properties of nanomaterials.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Materials Science, Ceramics
Ibrahim Garba Shitu, Kamil Kayode Katibi, Lawan Sani Taura, Aminu Muhammad, Idris Muhammad Chiromawa, Suleiman Bashir Adamu, Sani Garba Durumin Iya
Summary: CuSe nanoparticles were prepared using microwave irradiation technique and their structural properties were investigated. X-ray diffraction analysis showed the hexagonal structure of CuSe nanoparticles. Different analysis techniques were employed to examine the effect of irradiation time on particle size and intrinsic strain. SEM and AFM were used to determine the particle size. Raman spectroscopy revealed three vibrational bands. The optical bandgap of CuSe nanoparticles decreased with increase in irradiation time.
CERAMICS INTERNATIONAL
(2023)
Review
Biochemistry & Molecular Biology
Kamil Kayode Katibi, Mohd Zuhair Mohd Nor, Khairul Faezah Md. Yunos, Juhana Jaafar, Pau Loke Show
Summary: Membrane separation is a promising technology for fruit juice concentration and clarification, but fouling is a challenge.
Article
Nanoscience & Nanotechnology
Syazana Sulaiman, Raba'ah Syahidah Azis, Ismayadi Ismail, Hasfalina Che Man, Khairul Faezah Muhammad Yusof, Muhammad Umar Abba, Kamil Kayode Katibi
Summary: In this study, magnetite nano-adsorbent (MNA) was successfully synthesized from mill scale waste products and applied for the removal of Cu2+ from aqueous solutions. The optimal MNA with specific characteristics was obtained after 7 hours of milling time. The experimental results demonstrated high adsorption capacity and regeneration efficiency of MNA, making it a promising candidate for water treatment applications.
NANOSCALE RESEARCH LETTERS
(2021)
