Article
Polymer Science
Shi-Qiong Li, Ren-Cheng Tang, Cheng-Bing Yu
Summary: Jute fabric was treated with chitosan and sodium alginate to enhance its flame retardancy. The treated fabric exhibited a higher limiting oxygen index and reduced heat release capability.
POLYMER DEGRADATION AND STABILITY
(2022)
Article
Materials Science, Ceramics
Hang Li, Chi Wang, Tao Yang, Zhaohui Wang, Mingchu Xia, Mengying Zhang, Da Liu, Guangming Yuan
Summary: In this study, a chitosan-SiO2 film was formed on the wood surface using the principle of biomineralization and a layer-by-layer self-assembly method. The film improved the thermal stability and mechanical strength of the wood.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2023)
Article
Polymer Science
Weronika Szczesna, Marta Tsirigotis-Maniecka, Lilianna Szyk-Warszynska, Sebastian Balicki, Piotr Warszynski, Kazimiera A. Wilk
Summary: In this study, multilayered alginate/chitosan microparticles were fabricated to enhance the oral administration of large cranberry fruit extracts. The size and properties of the microparticles were influenced by the outermost layer composition. The microparticles showed good drug entrapment efficiency and release profiles.
EUROPEAN POLYMER JOURNAL
(2021)
Article
Polymer Science
Jiamin Xu, Zhenlin Jiang, Fang Hou, Keyu Zhu, Chenxue Xu, Chaosheng Wang, Huaping Wang
Summary: In this study, flame retardant and antibacterial sodium alginate (SA) fiber was prepared using bio-based flame retardant of phytic acid and DL-arginine. The effects on morphology, combustion behavior, thermal stability, mechanical properties, and antibacterial properties were investigated. The results showed that the addition of 20 wt% of reaction products of phytic acid and DL-arginine (PADL) in SA composite fiber achieved a limiting oxygen index of 40.0 +/- 0.3% and UL-94 V-0 grade. PADL effectively reduced combustion heat and promoted carbon formation in the composite fiber. The antibacterial property of SA composite fiber increased by 30% due to the interaction between the guanidine group of DL-arginine and the cell membrane.
Article
Polymer Science
Li-Yao Zhang, Wan-Meng Song, Ping Li, Jun-Sheng Wang, Yun Liu, Ping Zhu
Summary: This study improves the flame retardancy and anti-dripping performance of polyester fabrics by using modified alginate coatings. The coated PET fabrics show significant changes in burning behavior, with higher flame retardancy and self-extinguishing behaviors.
POLYMER DEGRADATION AND STABILITY
(2022)
Article
Polymer Science
Kai Xu, Xing Tian, Ying Cao, Yaqi He, Yanzhi Xia, Fengyu Quan
Summary: Calcium alginate fibers and flame-retardant polyamide-66 were used to prepare composite paper, where the addition of FR-PA effectively suppressed the combustion of Ca-Alg by forming a compact carbon layer. The combustion and thermal degradation behavior of the composite paper were analyzed using cone calorimetry and other methods, with the results showing excellent flame retardancy of the composite paper.
Article
Chemistry, Applied
Shuai Jiang, Meiling Zhang, Mengmeng Li, Jianhua Zhu, Aixiong Ge, Lifang Liu, Jianyong Yu
Summary: By using biopolymer sodium alginate and borate as flame retardants, the flammability of cellulose nanofibril foams was successfully reduced, resulting in higher limited oxygen index and improved mechanical performance.
CARBOHYDRATE POLYMERS
(2021)
Article
Materials Science, Paper & Wood
Xinhua Liu, Chenghu Lei, Yinchun Fang
Summary: This study focused on the development of fully bio-based chitosan/sodium alginate (CS/SA) coating on Xuan paper to improve its flame retardancy through layer-by-layer (LbL) assembly. The results showed that the CS/SA coating significantly enhanced the flame retardancy of Xuan paper by forming a stable char layer to inhibit heat transfer and diffusion of combustible gases. The research also demonstrated the gas phase flame retardant action of CS/SA coating, providing a new approach for fire-resistant Xuan paper using fully bio-based compounds.
Article
Polymer Science
Yajie Li, Haicun Yang, Azita Ahmadi, Aziz Omari, Hongting Pu
Summary: In this study, multilayer separators with high thermal stability and flame retardancy are efficiently prepared by blending heat resistant reinforcing component with PP and PE. The prepared separators exhibit good dimensional stability, flame retardancy, and a wide shutdown temperature window, making them suitable for high-power batteries.
Article
Chemistry, Applied
Ying-Jun Xu, Lian-Yi Qu, Yun Liu, Ping Zhu
Summary: Alginates are naturally occurring polysaccharides that have inherent flame retardancy, making them ideal for eco-friendly flame-retardant materials. The influence of metal ions on the flame retardancy and pyrolysis behaviors of alginates has been studied systematically. Alginates have great potential in applications such as preparing flame-retardant fibers, fabrics, and aerogel composites.
CARBOHYDRATE POLYMERS
(2021)
Article
Chemistry, Physical
Fei Zhong, Chunlin Chen, JiaoChun Zheng, Linxu Li, Xi Wen
Summary: This study introduced an efficient boron nitride (BN)-based inorganic flame retardant into epoxy resin to enhance its fire resistance. The resulting composite coating showed excellent fire performance and smoke suppression effect, which can be attributed to the synergistic effects of boron nitride, sodium alginate, and metal ions.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Biotechnology & Applied Microbiology
Haohe Huang, Qifeng Yang, Chongxing Huang, Lanyu Zhang
Summary: In this study, a variety of composite hydrogels were prepared using an ion permeation method, and the effects of different components on the properties of the hydrogels were investigated. The results showed that the hydrogel exhibited strong adsorption capacity and stability for Cu2+. The study contributes to the development of a novel and modified hydrogel adsorbent based on kaolin.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2022)
Article
Materials Science, Paper & Wood
Chenrui Zhang, Yingao Hu, Jingjing Shao, Hui Pan
Summary: The cellulose-polyvinyl alcohol-sodium alginate composite aerogels are prepared by freeze-drying after adding PVA and SA to the cellulose suspension. The structure and properties of the composite aerogels are analyzed using various techniques. The results show that sodium alginate is distributed uniformly within the aerogels, which possess excellent compressive resilience properties and reduced flammability. This study provides a simple method to prepare green flame-retardant cellulose-PVA composite aerogels materials with potential applications in construction materials.
Article
Polymer Science
Yuanyu Ge, Zhenming Qi, Desheng Sha, Xiaosai Hu, Shiwen Liu
Summary: Intumescent flame retardant (IFR) is an environmentally friendly flame retardant that has improved water solubility, making it suitable for use in cellulose-based textiles. By treating cotton fabrics with a water-soluble carbon-nitrogen-phosphorus (C-N-P) ternary IFR called PTETP, the flame retardant performance and thermal stability of the fabrics are significantly enhanced without compromising their tensile strength.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
Zhe Huang, Shenghua Li, Lung-Chang Tsai, Tao Jiang, Ning Ma, Fang-Chang Tsai
Summary: A single molecule intumescent flame retardant was synthesized through in-situ polymerization by chitosan-based ammonium polyphosphate microencapsulated by melamine-formaldehyde resin. It exhibited excellent thermal stability at high temperatures and reduced heat absorption on the surface of the composite material, effectively inhibiting its decomposition. Polypropylene composites containing the flame retardant showed improved limiting oxygen index and vertical combustion grade, as well as excellent anti-dripping effect.
MATERIALS TODAY COMMUNICATIONS
(2022)
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)