Article
Multidisciplinary Sciences
Mohib Ullah Khan, Bandar Ali Al-Asbahi, Saira Bibi, Shaista Taimur, Mohsan Nawaz, Tariq Yasin, W. Aslam Farooq, Zarshad Ali, Iram Bibi, Saddiqa Begum, Ali Bahader, Zia Ur Rehman, Nafeesah Yaqub, Abdullah Ahmed Ali Ahmed
Summary: This study successfully fabricated organic-inorganic nanohybrid composite systems for cleaning contaminants from wastewater. The composite beads exhibited excellent adsorption performance and stability, making them effective for the removal of different pollutants such as copper and methylene blue.
JOURNAL OF KING SAUD UNIVERSITY SCIENCE
(2022)
Article
Biochemistry & Molecular Biology
Yan Wang, Yong Zhang, Xiaolin Liu, Sen Sun, Shiyi Qin, Jiaqi Huang, Bowei Chen
Summary: In this study, a novel g-C3N4 filled, phosphoric-crosslinked chitosan gel bead (P-CS@CN) was developed for the adsorption of U(VI) from water. The introduction of more functional groups improved the separation performance of chitosan. At pH 5 and 298 K, the adsorption efficiency and capacity reached 98.0% and 416.7 mg g-1, respectively. The P-CS@CN gel bead exhibited excellent applicability in water based on dynamic adsorption experiments. Thermodynamic analyses showed that the adsorption process of U(VI) on P-CS@CN was spontaneous and endothermic.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Biochemistry & Molecular Biology
Yangyang Zhao, Yang Song, Rui Li, Fengfan Lu, Yibin Yang, Qiongjian Huang, Dongli Deng, Mingzhu Wu, Ying Li
Summary: In order to overcome the weak affinity and difficult separation of biochar, chitosan-biochar hydrogel beads (CBHBs) were developed as a solution for removing reactive brilliant blue (RBB KN-R) from wastewater. The adsorption behavior and mechanism of RBB KN-R onto CBHBs were extensively studied. The adsorption capacity showed pH-dependence and the highest adsorption capacity was observed at pH 2. The adsorption process followed the pseudo-second-order kinetic model and the intraparticle diffusion model. Film diffusion and intraparticle diffusion both contributed to the adsorption process. The maximum adsorption capacity was found to be 140.74 mg/g at 298.15 K, and higher temperatures favored the adsorption process. A complex mechanism involving p-p interactions, electrostatic attraction, hydrophobic interaction, and hydrogen bonding was found to contribute to the overall adsorption process. The presence of coexisting substances and elevated ionic strength hindered the adsorption capacity. After three cycles of adsorption-desorption, the CBHBs maintained an adsorption capacity above 95% for RBB KN-R. These results suggest that CBHBs are a durable and cost-effective adsorbent for efficient removal of dyes from wastewater.
Article
Biochemistry & Molecular Biology
Assia Benhouria, H. Zaghouane-Boudiaf, Riadh Bourzami, Ferhat Djerboua, B. H. Hameed, Mokhtar Boutahala
Summary: Chitosan/bentonite beads (CsB) composites were prepared for the removal of reactive orange 16 (RO16) and methylene blue (MB). The adsorption results showed that Cs20B80 was the best adsorbent for MB and RO16 dyes. The characteristics of Cs, B, and Cs20B80 were investigated using various techniques. The adsorption process was affected by contact time, initial concentration, temperature, adsorbent quantity, ion strength, and solution pH.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Biochemistry & Molecular Biology
Perumal Karthikeyan, Sankaran Meenakshi
Summary: A novel and environmentally-friendly chitosan encapsulated magnetic kaolin beads were fabricated and applied for the adsorption of phosphate and nitrate ions from water in this study. The synthesized beads showed promising potential as selective and effective adsorbents for the removal of phosphate and nitrate ions from aqueous solutions.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2021)
Article
Engineering, Chemical
Gunho Song, Sanghwa Oh
Summary: Adsorption kinetics of As and Pb onto composite beads synthesized with stone powder, chitosan, and maghemite were investigated. Multiple kinetic models were utilized to analyze the kinetics, and the modified two compartment first order kinetic model (MTCFOKM) predicted the most accurately. The SCM beads showed high affinity for Pb adsorption compared to As adsorption, and the column study confirmed their effectiveness in Pb removal from contaminated groundwater.
Article
Polymer Science
Dilek Senol-Arslan
Summary: A novel composite adsorbent of Ch-S was prepared for Pb(II) removal, showing that Langmuir isotherm model was the best fit and pseudo-first order kinetics was the most suitable for describing the adsorption process onto Ch-S. The thermodynamic parameters indicated that the adsorption of Pb(II) on Ch-S was endothermic, possible and spontaneous.
Article
Materials Science, Multidisciplinary
Abdeldjalil Moktar, Mortada Daaou, Abdelaziz Bendraoua, Amine Morsli
Summary: The study revealed that the asphaltene/chitosan composite beads had higher adsorption capacity for metal ions compared to asphaltene alone, with a maximum adsorption capacity of 60-80 mg.g(-1). The adsorption capacity followed the order of Cu(II) > Mn(II) > Zn(II), and the adsorption process was best described by pseudo-second-order kinetics.
MATERIALS TODAY COMMUNICATIONS
(2022)
Article
Biochemistry & Molecular Biology
Neset Erek Sen, Zeynep Mine Senol
Summary: Chitosan-diatomite composite beads (Ch-D) were synthesized and exhibited improved adsorption capacity for Allura red AC (AR) food dye through hydrogen bonding and electrostatic interactions. The Ch-D composite showed a removal rate of 98% at 25 degrees Celsius, natural pH value, and an initial AR dye concentration of 200 mg L-1. The maximum adsorption capacity was found to be 34.7 mg g-1. The interactions between functional groups on the Ch-D composite and AR dye involved pi-pi interactions, hydrogen bonds, and electrostatic interactions.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Environmental Sciences
Pratibha Yadav, Anshul Yadav, Pawan Kumar Labhasetwar
Summary: In this study, recyclable Fe3O4-functionalized MIL101(Fe) chitosan composite beads were synthesized for efficient removal of tetracycline, doxycycline, and ciprofloxacin antibiotics from water. The beads showed high removal efficiency (>99%) for all antibiotics under optimum conditions, and demonstrated excellent regeneration ability for up to 5 cycles. The adsorption mechanism involved pi-pi interaction, H-bonding, and electrostatic interaction between the antibiotics and the adsorbent. The results highlight the potential of these beads for antibiotic removal from pharmaceutical industry wastewater.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Polymer Science
Chenlu Jiao, Die Liu, Nana Wei, Jiannan Gao, Fan Fu, Tao Liu, Jian Wang
Summary: Porous sustainable cellulose/gelatin/sepiolite gel beads were successfully fabricated for CR removal from wastewater, demonstrating a highly porous and thermally stable structure. The adsorption capacity for CR reached 279.3 mg·g(-1) with good regeneration capability. These gel beads show potential as efficient and reusable materials for dye wastewater treatments.
Article
Materials Science, Paper & Wood
Zhiyong Zhang, Tang Liu, Deyi Wu
Summary: In this study, hydrous zirconia-impregnated chitosan beads (HZCB) with excellent stability and phosphate removal performance were synthesized. The dominant adsorption mechanism for phosphate was the direct coordination to Zr atoms by replacing hydroxyls. The adsorbed phosphate could be successfully eluted by an NaOH solution and the material could be repeatedly used.
Article
Chemistry, Applied
Chunzi Xu, Yunlan Xu, Dengjie Zhong, Haixing Chang, Jiaxin Mou, Hui Wang, Hongyu Shen
Summary: The Zr4+ cross-linked chitosan-thiourea composite was synthesized for the first time and showed excellent acid-base resistance, reusability, and high adsorption capacity for Cr(VI) removal.
CARBOHYDRATE POLYMERS
(2022)
Article
Polymer Science
Faisal Kholiya, Ankit Singh, Amit Gosai, Ramavatar Meena
Summary: Agaraldehyde and chitosan functional beads were prepared as dye adsorbent for removing seven dyes from aqueous solutions, with a focus on amido black dye. The bio-beads showed encouraging adsorption efficiency and followed both Langmuir and Freundlich isotherms, while adhering to pseudo-second-order kinetics for dye removal. This study highlighted the potential of R-A(ald)-CHI as an effective adsorbent for dye removal from wastewater.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Biochemistry & Molecular Biology
Hao Kong, Qian Li, Xiangqun Zheng, Peizhen Chen, Gengtao Zhang, Zhiping Huang
Summary: A novel lanthanum-modified-chitosan-attapulgite composite was prepared and characterized for efficient phosphate adsorption in water. The adsorption properties were investigated through kinetics, isotherms, and thermodynamics. The adsorbent showed excellent stability within a pH range of 4-10 and was not significantly influenced by co-existing substances. Chemisorption was the main mechanism for phosphate adsorption. The maximum adsorption capacity of the adsorbent was 102.90 mg/g, higher than other La-based adsorbents. The adsorption process was spontaneous, exothermic, and disordered. The adsorbent exhibited excellent effectiveness in real wastewater.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
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)