Article
Chemistry, Physical
Dana I. M. Al-Risheq, Shifa M. R. Shaikh, Mustafa S. Nasser, Fares Almomani, Ibnelwaleed A. Hussein, Mohammad K. Hassan
Summary: This study examines the influence of a hybrid coagulation/flocculation process on highly stable bentonite suspension. The results show that cationic and anionic polyacrylamide (PAM) exhibit different flocculation behaviors in the presence of a natural deep eutectic solvent (NADES). The molecular weight and charge density of PAM have a significant impact on the flocculation efficiency of bentonite suspension.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Engineering, Environmental
Benedict Terkula Iber, Donald Torsabo, Che Engku Noramalina Che Engku Chik, Fachrul Wahab, Siti Rozaimah Sheikh Abdullah, Hassimi Abu Hasan, Nor Azman Kasan
Summary: In this study, dry legs of giant freshwater prawn were chemically processed into chitin and chitosan for use as coagulant in the coagulation/flocculation of real aquaculture wastewater. The optimum operating conditions of chitosan dosage, pH, and settling time for removal of turbidity and colour were established using response surface methodology. The results showed that the smooth and none porous chitosan with high solubility and degree of deacetylation exhibited great potential as a good coagulant.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Polymer Science
Benedict Terkula Iber, Donald Torsabo, Che Engku Noramalina Che Engku Chik, Fachrul Wahab, Siti Rozaimah Sheikh Abdullah, Hassimi Abu Hassan, Nor Azman Kasan
Summary: The major sources of waste from aquaculture operations are fish or shellfish processing and wastewater generation. This study used a chemical method to extract chitin and chitosan from Macrobrachium rosenbergii carapace and applied them for wastewater treatment in shrimp aquaculture. The results showed that the chitosan produced had good quality and could effectively remove turbidity and salinity in the wastewater. The process conditions adopted in this study yielded chitosan of good quality, suitable as a biopolymer coagulant for aquaculture wastewater treatment.
Article
Geosciences, Multidisciplinary
Ellen Krahl, Bernhard Vowinckel, Leiping Ye, Tian-Jian Hsu, Andrew J. Manning
Summary: The settling behavior of clay minerals was investigated as a function of salt concentration. The results showed that there is a specific critical salt concentration at which the settling speed drastically increases, and it remains constant at higher salinities. This critical salt concentration is lower than the salinity of natural water bodies.
FRONTIERS IN EARTH SCIENCE
(2022)
Article
Engineering, Environmental
Benjamin U. Okoro, Soroosh Sharifi, Mike Jesson, John Bridgeman, Rodrigo Moruzzi
Summary: This study compared the performance of three different plant-based coagulation products used in water treatment in developing countries, focusing on their ability to remove natural organic matter and turbidity. The results showed that these coagulants performed well in water purification, but attention to the optimal dosage is necessary to avoid potential increases in disinfection by-products.
Article
Agricultural Engineering
Heri Septya Kusuma, Andrew Nosakhare Amenaghawon, Handoko Darmokoesoemo, Yantus A. B. Neolaka, Bernadeta Ayu Widyaningrum, Samuel Usiwo Onowise, Chinedu L. Anyalewechi
Summary: In this study, the effectiveness of Manihot esculenta extract as an ecofriendly coagulant for treating turbid wastewater was evaluated. The coagulant was characterized chemically and morphologically, and the coagulation process was modeled using response surface methodology (RSM) and artificial neural networks (ANN). The results showed that the coagulant had diverse functional groups, a porous structure, and carbon and oxygen were the major constituents. RSM and ANN both predicted similar maximum turbidity removal under optimized conditions. This suggests that Manihot esculenta extract could be a suitable coagulant for the remediation of turbid wastewater.
INDUSTRIAL CROPS AND PRODUCTS
(2022)
Article
Engineering, Environmental
Setyo Budi Kurniawan, Siti Rozaimah Sheikh Abdullah, Ahmad Razi Othman, Ipung Fitri Purwanti, Muhammad Fauzul Imron, Nur'Izzati Ismail, Azmi Ahmad, Hassimi Abu Hasan
Summary: This study isolated the WS5 strain from aquaculture effluent, which showed potential as a bioflocculant agent for turbidity removal in water. Experimental results indicated that WS5 exhibited better flocculation activity in high turbid water, possibly due to effective flocculation process through polymer bridging.
JOURNAL OF WATER PROCESS ENGINEERING
(2021)
Article
Engineering, Chemical
Dana I. M. Al-Risheq, Shifa M. R. Shaikh, Mustafa S. Nasser, Fares Almomani, Ibnelwaleed A. Hussein, Mohammad K. Hassan
Summary: The influence of hybrid coagulation/flocculation systems on the degree of flocculation and rheological behavior of bentonite suspension was studied. The utilization of a hybrid system significantly affected the treatment efficiency of the flocculants. The hybrid systems enhanced the properties of the sediment by forming larger and more compacted flocs.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Biochemistry & Molecular Biology
Chuang Liu, Xiaoyu Wang, Sicong Du, Peng Cheng, Wenyan Liang
Summary: Magnetic flocculant (Fe3O4@PP) was synthesized using plant polyphenol (PP) as a shaping ligand via in situ self-assembly. Fe3O4@PP showed excellent turbidity removal efficiency in a wide pH range and initial turbidity range. The formation process of magnetic flocs was influenced by magnetic force, electric charge, van der Waals force, and functional groups on the surface of PP.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Environmental Sciences
Frederic Anderson Konkobo, Paul Windinpsidi Savadogo, Mamounata Diao, Roger Dakuyo, Mamoudou Hama Dicko
Summary: This study explores the potential of plant extracts as biocoagulants in raw water treatment, and finds that seeds of Acacia nilotica, Adansonia digitata, Balanites aegyptiaca, Tamarindus indica, Aloe vera sap, and Opuntia ficus indica sap show varying levels of coagulant activity. Moringa oleifera seeds and Boscia senegelensis seeds are found to be highly effective alternatives to aluminum sulfate, reducing turbidity and pathogenic microorganisms in water.
FRONTIERS IN ENVIRONMENTAL SCIENCE
(2023)
Article
Engineering, Environmental
Soraya Ihaddaden, Dihia Aberkane, Abdelhamid Boukerroui, Didier Robert
Summary: This study successfully removed a basic dye using a bentonite-based coagulant and a cactus-based flocculant. The results show that these biomaterials have excellent removal efficiency under appropriate conditions, even outperforming conventional chemicals.
JOURNAL OF WATER PROCESS ENGINEERING
(2022)
Article
Environmental Sciences
Aruna Kanwar Naruka, Subburaj Suganya, Ponnusamy Senthil Kumar, Chanchpara Amit, Katakpara Ankita, Dhruv Bhatt, Madhava Anil Kumar
Summary: The coagulation performance of shed-leaves of Avicennia marina plants for the treatment of mud and starch water suspensions was studied, with HCl treated coagulants showing the best performance. The turbidity removal met the WHO acceptable limit, with HCl treated coagulants clarifying the water effectively. The prepared coagulants exerted better performance than other natural coagulants, showing promising results for the removal of impurities.
Article
Engineering, Chemical
Dana I. M. Al-Risheq, M. S. Nasser, Hazim Qiblawey, Ibnelwaleed A. Hussein, Abdelbaki Benamor
Summary: In this study, a ChCl-based NADES was successfully used as a coagulant to treat highly stable bentonite dispersions, achieving effective clarification and separation. The results showed that NADES had better coagulation performance compared to ChCl and ChCl-LA.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Engineering, Chemical
Dana I. M. Al-Risheq, M. S. Nasser, Hazim Qiblawey, Ibnelwaleed A. Hussein, Mohammad A. Al-Ghouti
Summary: The study investigated the impact of NADES and ChCl-LA mixture on the rheological behavior of bentonite suspensions. Changes in rheological parameters were influenced by the concentration and structure of the coagulants. Increasing the concentration of coagulants led to enhanced elastic properties and greater destabilization degree, resulting in improved suspension viscosity.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Engineering, Environmental
Dana I. M. Al-Risheq, Mustafa S. Nasser, Hazim Qiblawey, Muneer M. Ba-Abbad, Abdelbaki Benamor, Ibnelwaleed A. Hussein
Summary: Three ChCl-based natural deep eutectic solvents were synthesized and tested, with ChCl:LA showing slightly better efficiency at low dosage. Utilizing response surface methodology, the optimal coagulation conditions were determined to be 77 mM for ChCl:LA dosage and 3.48 g L-1 for the bentonite solid content.
JOURNAL OF WATER PROCESS ENGINEERING
(2021)
Article
Biochemistry & Molecular Biology
Wei-Han Hui, Yen-Lin Chen, Shu-Wei Chang
Summary: Crosslinking affects the mechanical behavior and tissue metabolism of collagen-based tissues. Aging and diabetes alter the crosslinking type and density, thus changing tissue properties. High-connectivity enzymatic crosslinking and advanced-glycation end-products result in uniform deformation under daily activity, while low-connectivity enzymatic crosslinking does not. High-connectivity model displays more sliding, while AGEs induce instability in structures near the binding sites.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2024)
Article
Biochemistry & Molecular Biology
Yao-Bin Ma, Xiao-Qiu Zhou, Wei-Dan Jiang, Pei Wu, Yang Liu, Shu-Wei Li, Ling Tang, Lu Zhang, Hai-Feng Mi, Lin Feng
Summary: Tea polyphenols (TPs) are an inexpensive feed additive that can protect the gill function of fish against Flavobacterium columnare (F. columnare) through various mechanisms, including suppression of oxidative stress, apoptosis, and inflammation.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2024)
Article
Biochemistry & Molecular Biology
Yan-Jia Guo, Jing-Ru Pang, Yu Zhang, Zhong-Rui Li, Xiao-Lin Zi, Hong-Min Liu, Ning Wang, Li-Juan Zhao, Ya Gao, Bo Wang, Piet Herdewijn, Cheng-Yun Jin, Ying Liu, Yi-Chao Zheng
Summary: This study identifies the conjugation of NEDD8 to LSD1 and its impact on GC cells, revealing the significance of LSD1 neddylation in GC.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2024)
Review
Biochemistry & Molecular Biology
Geum-Jae Jeong, Fazlurrahman Khan, Nazia Tabassum, Young-Mog Kim
Summary: Vibrio species are motile gram-negative bacteria commonly found in aquatic environments. They can adapt to environmental fluctuations and develop protective mechanisms against host immune systems. Different types of sigma and anti-sigma factors play important roles in regulating gene expression and virulence in Vibrio species.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2024)
Article
Biochemistry & Molecular Biology
Zahra Mohammadbagheri, Behrooz Movahedi, Shaghayegh Saeedi, Abbas Rahmati
Summary: In this study, a reusable biobased composite hydrogel was successfully synthesized and used for the removal of Tl(I) from aqueous solutions. The hydrogel exhibited high adsorption capacity and thermal stability, and the adsorption process was found to be thermodynamically spontaneous. The results demonstrated that the hydrogel can be reused multiple times without significant loss of its adsorption capacity.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2024)
Article
Biochemistry & Molecular Biology
Iqra Batool, Muhammad Imran, Ayesha Anwar, Farhan Ahmed Khan, Afrah E. Mohammed, Ashwag Shami, Hafiz Iqbal
Summary: Enzyme immobilization on ZnO/SnO2 and ZnO/SnO2/SA nanocomposites was studied, and the catalytic and biochemical characteristics of the immobilized enzyme were investigated. The results showed that ZnO/SnO2 and ZnO/SnO2/SA nanostructures are suitable carriers for enzyme immobilization.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2024)
Article
Biochemistry & Molecular Biology
Elias Mosaffa, Dhruvi Patel, Nasim Amiri Ramsheh, Rishikumar Indravadan Patel, Atanu Banerjee, Hossein Ghafuri
Summary: In this study, a unique 3D bead structure of adsorbent, composed of bacterial cellulose microfilaments reinforced chitosan adorned with melamine 2D plates, was synthesized for anionic dye removal. The adsorbent showed high specific surface area and abundant functional groups, resulting in exceptional adsorption capacity. The characteristics and optimal conditions of the adsorbent were assessed and analyzed.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2024)
Article
Biochemistry & Molecular Biology
Carolina Gismene, Jorge Enrique Hernandez Gonzalez, Marilia de Freitas Calmon, Andrey Fabricio Ziem Nascimento, Angela Rocio Nino Santisteban, Felipe Antunes Calil, Alana Della Torre da Silva, Paula Rahal, Rejane Maira Goes, Raghuvir Krishnaswamy Arni, Ricardo Barros Mariutti
Summary: Mammaliicoccus sciuri, a bacterium of clinical and veterinary relevance, expresses the virulence factor Exfoliative Toxin C (ExhC), which binds specifically to desmoglein-1 (Dsg1) and plays a role in tissue integrity. This study investigates the necrotic activity of ExhC and identifies a variant lacking necrotic potential but retaining enzymatic activity through mutagenesis experiments and crystal structure determination.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2024)
Article
Biochemistry & Molecular Biology
Bibhas K. Bhunia, Ashutosh Bandyopadhyay, Souradeep Dey, Biman B. Mandal
Summary: Intervertebral disc degeneration is a major cause of chronic low back pain and disability. Researchers have developed a bioactive silk-based hybrid hydrogel system functionalized with decellularized human Wharton's jelly extracellular matrix as bioactive cues. The hydrogels mimic the rheological and mechanical properties of the native nucleus pulposus tissue and support cell viability, proliferation, and tissue maturation.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2024)
Article
Biochemistry & Molecular Biology
Qun Zhang, Yonggan Yan, Zhao Li, Jing Du, Kai Zhang, Liguo Zhang, Ting Wang, Alberto Bianco, Shaohua Ge, Baojin Ma
Summary: A new crosslinking strategy has been devised to construct injectable sodium alginate hydrogels, which can be regulated for injectability and have great potential in biomedical applications.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2024)
Article
Biochemistry & Molecular Biology
Seong Eun Hong, Ji-Soo Lee, Hyeon Gyu Lee
Summary: The potential of multi-layer nanoemulsions for improving the cellular uptake, antioxidant activity, and in vitro bioaccessibility of alpha-tocopherol was examined. The results showed that the multi-layer nanoemulsions significantly enhanced the cellular uptake and antioxidant activity of alpha-tocopherol compared to free coumarin 6. Furthermore, the use of chitosan and dextran sulfate as wall materials in the multi-layer nanoemulsions led to even higher cellular uptake, in vitro bioaccessibility, and antioxidant activity of alpha-tocopherol.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2024)
Article
Biochemistry & Molecular Biology
Jingjing Yu, Yanhui Zhang, Ruoning Zhang, Yanxiang Gao, Like Mao
Summary: High internal phase emulsions (HIPEs) based on beeswax (BW) oleogels and octenyl succinic acid starch (OSA starch) were prepared by a simple one-step method. The results showed that oleogelation improved the stability and encapsulation capability of the HIPEs, which is significant for the development of novel healthy food.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2024)
Review
Biochemistry & Molecular Biology
Bi-Feng Yao, Xiu-Ju Luo, Jun Peng
Summary: The balanced and continuous fission and fusion of mitochondria, regulated by OPA1, are important for maintaining mitochondrial dynamics in cardiovascular disorders. Understanding the role of OPA1 in mitochondrial fusion can provide insights into the pathogenesis of cardiovascular diseases.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2024)
Review
Biochemistry & Molecular Biology
Gokul Paramasivam, Anandhavelu Sanmugam, Vishnu Vardhan Palem, Murugan Sevanan, Ananda Babu Sairam, Nachiappan Nachiappan, Buhyun Youn, Jung Sub Lee, Muthuchamy Nallal, Kang Hyun Park
Summary: Nanomaterials are being used to deliver therapeutic agents in living systems. Different nanotechnological applications such as immunosensors, immune assays, and drug delivery are being implemented using nanotechnology. Genomics plays a crucial role in selecting appropriate drugs for personalized cancer therapy. It helps in analyzing gene and protein expression, disease classification, and designing disease models. Delivering drugs to specific areas using nanoparticles is a challenging issue.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2024)
Article
Biochemistry & Molecular Biology
Jing Li, Wei Wang, Han Wu, Feng Peng, Hui Gao, Ying Guan
Summary: In this study, CMH-based CPF films were prepared and their thermal and barrier properties were successfully regulated. The tensile strength and water vapor barrier property of CPF films were significantly improved, making them promising for food packaging applications.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2024)