Article
Energy & Fuels
Zhenchi Chen, Bentian Tang, Yuzhong Niu, Hou Chen, Yongfeng Liu, Aili Wang, Liangjiu Bai
Summary: Silica supported thiosemicarbazide was synthesized and characterized for the adsorption of Cu(II) and Zn(II) from ethanol and aqueous solutions. The adsorption capacity for Cu(II) and Zn(II) in ethanol solution is superior. The adsorption process is controlled by film diffusion and follows a pseudo-second-order model, with increased uptake by higher metal ion concentration and temperature.
Article
Chemistry, Physical
Liang Zhang, Fan Yang, Yichen Zhao, Lvling Zhong, Ruohui Gao, Xiaomin Zhang, Ting Wang, Juanqin Xue
Summary: In this study, a new type of heavy metal adsorbent, TSC-PVA, was prepared by grafting thiosemicarbazide onto the surface of Poly(vinyl alcohol) (PVA) via a two-step method. The results showed high adsorption performance and selectivity for Cu(II), indicating potential applications for selective separation of Cu(II) from other metal ions.
COLLOID AND INTERFACE SCIENCE COMMUNICATIONS
(2021)
Review
Engineering, Environmental
Abul K. Mallik, S. M. Fijul Kabir, Fahim Bin Abdur Rahman, Mohammad Nazmus Sakib, Shakil Shahriar Efty, Mohammed Mizanur Rahman
Summary: This review systematically analyzes the recent progress of chitosan-based adsorbents for removing Cu(II) ions from wastewater, including the types of adsorbents, adsorption mechanisms, isotherms, and kinetics. The study shows that chitosan-based adsorbents have high potential for reusability and are most effective in slightly acidic to neutral aqueous mediums. The binding of Cu(II) ions by these adsorbents is mainly governed by complexation, electrostatic interaction, ion-exchange, and surface precipitation mechanisms.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Biochemistry & Molecular Biology
Zhiying Shao, Jilai Lu, Jian Ding, Fengjiao Fan, Xinyang Sun, Peng Li, Yong Fang, Qiuhui Hu
Summary: The synthesized chitosan-pectin gel beads showed excellent adsorption performance for removing heavy metals from water. With good structural characteristics, mechanical strength, and stability, CPBs were found to have great reusability and potential for environmental protection and reuse.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2021)
Article
Environmental Sciences
Fang Wang, Jiyun Gao, Lijuan Jia, Shixing Wang, Ping Ning
Summary: In this study, a functionalized chitosan-based adsorbent was synthesized and shown to have strong adsorption capability for copper ions, indicating its practical significance for removing heavy metal copper in wastewater.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Polymer Science
Chao Hu, Zuhong Zheng, Mengyao Huang, Fan Yang, Xuewei Wu, Aiqun Zhang
Summary: This study analyzed a magnetite-chitosan composite through various techniques and explored its adsorption properties for Cu(II) and Cd(II). The results showed that the optimum pH for adsorption was 5.0, the equilibrium time was about 10 minutes, and the adsorption capacity reached 26.28 mg/g for Cu(II) and 18.67 mg/g for Cd(II). The temperature had a certain impact on the adsorption amount, and the composite material had a relatively rough outer surface, with dominant adsorption being attributed to chitosan. The research suggests the importance of further optimizing the composite system through green synthesis for heavy metal adsorption.
Article
Biochemistry & Molecular Biology
Xiaoqi Liu, Yanyun Zhang, Yan Liu, Ting'an Zhang
Summary: In this study, chitosan bead grafted by third-generation dendrimers (CB-G3) with a diameter of 1.40 mm was synthesized and found to have excellent performance in recovering Ag(I), Cu(II), and Pb(II) ions in aqueous media. The optimum pH value was found to be 5, and the increased generation number of dendrimers contributed to an improvement in adsorption capacity. The adsorption processes can be described using pseudo-second-order kinetic and Langmuir models, and electrostatic interactions and hydrogen bonds are the main mechanisms between metal ions and N atoms.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Engineering, Environmental
Hang Yin, Qiuqiu Xiong, Miao Zhang, Bowen Wang, Fenge Zhang
Summary: In this study, magnetic composite microspheres (SCFP) were successfully prepared and used for the removal of Cu(II) from water. Batch experiments revealed that SCFP exhibited excellent adsorption capacity with a removal rate of 97.1% for Cu(II). Comprehensive analysis of the structure and adsorption mechanism of SCFP provided insights into its superior performance. These findings suggest the potential of SCFP for the removal of Cu(II) from water.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Multidisciplinary Sciences
Shujie Zhang, Yating Zhang, Lisong Fu, Mengke Jing
Summary: The study focused on the efficiency of using shell cellulose in water treatment environment to remove Cr (VI) and Cu (II) ions, finding that shell trichlorocellulose has better permeability to copper ions, better metal ion absorption properties, and relatively low cost. Additionally, chitosan fibers adsorbed more copper ions compared to chromium ions, mainly due to the good chelation between amino groups in chitosan fibers and copper ions.
SCIENTIFIC REPORTS
(2021)
Article
Engineering, Chemical
Qinyu Wang, Lipin Li, Lingchao Kong, Guiyuan Cai, Pu Wang, Jun Zhang, Wei Zuo, Yu Tian
Summary: An elastic polyethyleneimine-modified carboxymethyl chitosan aerogel was developed for the adsorption of Cu(II) in water, showing excellent adsorption performance and selectivity. The aerogel also demonstrated effective purification of industrial wastewater in a fixed-bed column filtration system. The strong electrostatic force, Vander Waals' force, and coordination of functional groups were found to contribute to the exceptional adsorption performance.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Mining & Mineral Processing
Hongxia Li, Hongbing Ji, Xinglan Cui, Xiaokui Che, Qidong Zhang, Juan Zhong, Rongzhen Jin, Lei Wang, Yi Luo
Summary: The novel porous nanocomposite CPM exhibited efficient adsorption capacities for removing metalloid As(III) and heavy metals Cd(II), Cu(II), and Pb(II) from water and soil, with different adsorption mechanisms contributing to the overall effectiveness.
INTERNATIONAL JOURNAL OF MINING SCIENCE AND TECHNOLOGY
(2021)
Article
Biochemistry & Molecular Biology
Asmaa M. Abu El-Soad, Giuseppe Lazzara, Mahmoud O. Abd El-Magied, Giuseppe Cavallaro, Jamelah S. Al-Otaibi, M. I. Sayyed, Elena G. Kovaleva
Summary: This study tested the adsorption characteristics of carboxyl group modified chitosan (CTS-CAA) towards copper (II) and zinc (II) ions, and characterized the modified chitosan using various techniques. The results showed that CTS-CAA had good adsorption capacity for Cu (II) and Zn (II), and exhibited favorable adsorption kinetics and thermodynamics under variable conditions. Moreover, CTS-CAA could be regenerated using different eluents.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Polymer Science
Taehoon Kim, Jeongwoo Shin, Byungryul An
Summary: Chitosan, a natural organic polymer, exhibits bifunctional adsorption characteristics in the removal of cationic and anionic contaminants from water and wastewater treatment. The presence of NH2 and NH3+ in chitosan allows for simultaneous interaction with cationic Cu(II) and anionic phosphate. Under mixed conditions, the presence of both ions increases the uptake of each other, with phosphate being more influenced than Cu(II). The adsorption kinetics for both Cu(II) and phosphate are slowed down by co-ion competition.
Article
Engineering, Environmental
Xilong Peng, Yue Li, Shuang Liu, Tian Jiang, Wenjin Chen, Dan Li, Jiren Yuan, Feigao Xu
Summary: In this experiment, HAp-coated-stone composites/CS were successfully synthesized using chitosan, waste limestone, and diammonium hydrogen phosphate. The addition of chitosan improved the thermal stability of the composite while reducing the specific surface area. These composites showed promising potential in removing Cu (II) from solutions and exhibited good resistance to pH changes. The adsorption mechanism onto the surface of HAp-coated-stone/CS composites was proposed based on the experimental results.
JOURNAL OF POLYMERS AND THE ENVIRONMENT
(2021)
Article
Biochemistry & Molecular Biology
Ahmed Gamal, Ahmed Galal Ibrahim, Essam M. Eliwa, Adham Hassan El-Zomrawy, Salah M. El-Bahy
Summary: The synthesis of a novel functionalized chitosan (Cs-BT) as an efficient Cu adsorbent in water treatment was successful. Pseudo-first-order kinetics and Temkin isotherm were found to be suitable for explaining the adsorption process.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2021)
Article
Thermodynamics
Mudasir Ahmad, Kaiser Manzoor, Ranjana Ray Chaudhuri, Saiqa Ikram
JOURNAL OF CHEMICAL AND ENGINEERING DATA
(2017)
Article
Medicine, Research & Experimental
Annu, Shakeel Ahmed, Gurpreet Kaur, Praveen Sharma, Sandeep Singh, Saiqa Ikram
JOURNAL OF APPLIED BIOMEDICINE
(2018)
Article
Thermodynamics
Mudasir Ahmad, Kaiser Manzoor, Suhail Ahmad, Saiqa Ikram
JOURNAL OF CHEMICAL AND ENGINEERING DATA
(2018)
Article
Biochemistry & Molecular Biology
Mudasir Ahmad, Baoliang Zhang, Jiqi Wang, Jia Xu, Kaiser Manzoor, Suhail Ahmad, Saiqa Ikram
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2019)
Review
Biochemistry & Molecular Biology
Suhail Ahmad, Mudasir Ahmad, Kaiser Manzoor, Roli Purwar, Saiqa Ikram
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2019)
Article
Chemistry, Multidisciplinary
Kaiser Manzoor, Mudasir Ahmad, Suhail Ahmad, Saiqa Ikram
Retraction
Thermodynamics
Mudasir Ahmad, Kaiser Manzoor, Suhail Ahmad, Saiqa Ikram
JOURNAL OF CHEMICAL AND ENGINEERING DATA
(2020)
Retraction
Thermodynamics
Mudasir Ahmad, Kaiser Manzoor, Ranjana Ray Chaudhuri, Saiqa Ikram
JOURNAL OF CHEMICAL AND ENGINEERING DATA
(2020)
Article
Chemistry, Multidisciplinary
Suhail Ahmad, Kaiser Manzoor, Roli Purwar, Saiqa Ikram
Article
Chemistry, Physical
Iftkhar Ahmad, Kaiser Manzoor, Gulshitab Aalam, Md Amir, Syed Wazed Ali, Saiqa Ikram
Summary: A magnetically recyclable SPION@L-tryptophan-Cu2+/Cu-0 nanocomposite was synthesized using a simplistic co-precipitation method. The nano-photocatalyst exhibited high catalytic efficacy, especially in the reduction of nitrobenzene and the degradation of methylene blue under visible light irradiation. The nanocomposite can be easily separated using an external magnetic field and showed efficient reusability even after several cycles.
Review
Biotechnology & Applied Microbiology
Shalu Aggarwal, Saiqa Ikram
Summary: Immobilization technology optimizes the catalytic performances, recovery efficiency, and stabilities of enzymes in unnatural environments. Supramolecules and multimolecular frameworks enable controllable interactions with enzymes, yielding protein bioconjugates with high substrate binding accessibility and selectivity. The focus is on biomolecule-responsive supramolecular assemblies and multimolecular architectures for protein and cell recognition and modulation. Embracing sustainable green immobilization approaches is crucial for developing novel biocatalytic systems.
BIOTECHNOLOGY AND BIOENGINEERING
(2023)
Correction
Chemistry, Multidisciplinary
Kaiser Manzoor, Mudasir Ahmad, Suhail Ahmad, Saiqa Ikram
Article
Chemistry, Multidisciplinary
Kaiser Manzoor, Mudasir Ahmad, Suhail Ahmad, Saiqa Ikram
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)