Article
Polymer Science
Wasana Nonkrathok, Tatiya Trongsatitkul, Nitinat Suppakarn
Summary: In this study, the shape memory properties of poly(lactic acid) (PLA)/poly(ethylene glycol) (PEG) blends were improved by adding maleic anhydride-grafted poly(lactic acid) (PLA-g-MA) as a compatibilizer. The PLA-g-MA improved interfacial adhesion between phases and promoted chain entanglement, leading to enhanced mechanical properties and shape fixity performance. The compatibilized blend containing 2 wt% PLA-g-MA exhibited the best shape fixity and recovery performance.
Article
Polymer Science
Prasong Srihanam, Yaowalak Srisuwan, Theeraphol Phromsopha, Apirada Manphae, Yodthong Baimark
Summary: In this study, the phase compatibility and mechanical properties of flexible poly(L-lactide)-b-poly(ethylene glycol)-b-poly(L-lactide) (PLLA-PEG-PLLA)/thermoplastic starch (TPS) blends were improved by adding citric acid (CA) as a compatibilizer. The crystallinity of PLLA-PEG-PLLA matrix was suppressed and the thermal stability was enhanced by CA modification of TPS. The compatibility between TPS and PLLA-PEG-PLLA phases was improved, and the blends exhibited increased tensile strength, elongation at break, and Young's modulus with higher CA content.
Article
Polymer Science
Moein Zarei, Miroslawa El Fray
Summary: Polymeric materials have a wide range of applications due to their controllable properties. In this study, a series of PBS-DLS-PEG copolymers were synthesized with different molecular weights of PEG to investigate their surface and thermal properties. The incorporation of higher molecular weight PEG improved the surface wettability of the materials while maintaining their thermal properties.
Article
Polymer Science
Prasong Srihanam, Wiriya Thongsomboon, Yodthong Baimark
Summary: The aim of this study was to modify PLLA-b-PEG-b-PLLA copolymer using low-cost CaCO3 filler to improve its material properties. The addition of CaCO3 enhanced the crystallinity and thermal stability of PLLA-b-PEG-b-PLLA matrix. SEM analysis showed stronger interfacial adhesion between PLLA-b-PEG-b-PLLA and CaCO3 compared to PLLA and CaCO3. Tensile testing revealed increased stress and modulus for PLLA-b-PEG-b-PLLA matrix with CaCO3, while these properties significantly decreased for PLLA matrix. Therefore, CaCO3 shows promise as an inexpensive filler for improving PLLA-b-PEG-b-PLLA bioplastics.
Article
Food Science & Technology
Xiaohan Ge, Xueying Huang, Liping Zhou, Yi Wang
Summary: The study investigates the use of active food packaging with antimicrobial compounds to prolong shelf life and improve product quality. Mixing PLA, zein, and PEG to create a composite film enhances water barrier properties and reduces brittleness of the film.
FOOD PACKAGING AND SHELF LIFE
(2022)
Article
Polymer Science
Alexis Theodorou, Vasilios Raptis, Chrissie Isabella Maria Baltzaki, Thrassyvoulos Manios, Vagelis Harmandaris, Kelly Velonia
Summary: In this study, we performed synthetic experiments and kinetic modeling calculations to investigate the polycondensation process of lactic acid and the formation of poly(lactic acid) (PLA). The results showed that under optimized conditions, PLLA with a weight-average molecular weight of 161 kDa could be obtained. The kinetic parameters obtained from the optimization accurately reproduced the experimental data.
Article
Polymer Science
Abdul Shakoor Shar, Ningning Wang, Tianyu Chen, Xiaoying Zhao, Yunxuan Weng
Summary: This study investigates the use of lignin and low-viscosity epoxy resins as modifiers for poly (lactic acid) (PLA) to improve its thermal, mechanical, and barrier properties. The addition of lignin resulted in an increase in PLA's degradation temperature, crystallinity, tensile strength, and oxygen barrier. The epoxy resins acted as compatibilizers and plasticizers, reducing the glass transition, crystallization, and melting temperatures of the PLA/lignin composites and improving their oxygen barrier properties. These modified PLA/lignin composites show potential for green packaging applications.
Article
Thermodynamics
Qiuxuan Li, Ruyan Xu, Kun Chen, Mengfan Jing, Chuntai Liu, Changyu Shen, Yaming Wang
Summary: This study prepared nanocomposites by melt-mixing PEG and BNNS with PLA, finding varying effects on PLA crystallization under different conditions, while also evaluating the performance of the nanocomposites.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2022)
Article
Polymer Science
Jiayi Wang, Anthony Griffin, Zhe Qiang, Jie Ren
Summary: The cooperative effect of star-shaped chain topology and poly(ethylene glycol) incorporation on stereocomplex formation of poly(lactic acid) (PLA) was investigated. The results showed that star-shaped PLLA/DED samples exhibited the fastest crystallization kinetics, highest crystallinity, and shortest crystallization half-time, indicating that the addition of poly(ethylene glycol) facilitated the crystallization of stereocomplexes containing star-shaped chain architecture.
POLYMER INTERNATIONAL
(2023)
Article
Chemistry, Physical
Mucahit Yilmaz, Mustafa Ersin Pekdemir, Ecem Ozen Oner
Summary: In this study, composites with shape memory properties were prepared by blending a polymer with lead element. The thermal stability of the polymer blend decreased with increasing lead percentage. The best shape memory properties were observed in the polymer blend containing 4% lead. The XRD results showed the characteristic cubic shape of lead in the composites. The highest degree of crystallinity was found in the polymer blend composite containing 16% lead. The gamma irradiation experiment demonstrated that the linear absorption capacity increased with increasing lead percentage.
RADIATION PHYSICS AND CHEMISTRY
(2023)
Article
Thermodynamics
Wei-Chi Lai, Li-Jie Liu
Summary: In this study, the addition of DBS to environmentally friendly PLA/PEG blends resulted in the formation of nanofibrils, which acted as reinforcements and nucleating agents. The nanofillers improved the mechanical strength of the nanocomposites, while the nucleation agent and plasticizer synergistically enhanced the crystallization rate of PLA. These eco-friendly materials show promise for biomedical and packaging applications.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2023)
Review
Polymer Science
Linda W. Oktavia, Didier Begue, Patricia Targon Campana, Roger C. Hiorns
Summary: This article provides a brief introduction to the requirements and synthetic pathways of drug delivery systems, with a focus on the key polymer poly(lactic acid) and its application in drug delivery systems. It also discusses the preparation of block copolymers incorporating poly(lactic acid) to enhance its properties.
POLYMER INTERNATIONAL
(2023)
Article
Polymer Science
Jinwei Chen, Ling Yang, Dahua Chen, Meigui Wang, Lixuan Wu
Summary: This study synthesized highly porous poly(lactic acid) (PLA)-based scaffolds with high interconnectivity and hydrophilicity through a supercritical carbon dioxide (c-CO2) foaming strategy. Poly(butylene succinate) (PBS) and poly(ethylene glycol) (PEG) were added to improve the interconnectivity and hydrophilicity. PLA/PBS/PEG(90/10/10) blend foaming under 100 degrees C showed the highest open cell rate of 95.9% and a high volume expansion ratio of 13.98, with a reduced water contact angle of 62.5 degrees. The biocompatibility of the scaffolds was examined with fibroblast NIH/3T3 cells, and the results showed that PLA/PBS/PEG scaffolds had better biocompatibility compared to PLA/PBS scaffolds. This work provides an easy and green approach for fabricating fully biodegradable PLA-based scaffolds with high open cell rate and hydrophilicity in tissue engineering.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Polymer Science
Wen-ze Li, Gang Liu, Yan-hua Niu, Ya-jiang Huang, Guang-xian Li
Summary: In this study, different PEG and PPEGA block copolymers were synthesized to explore their effects on the crystallization of PLA stereocomplex system. The results showed that PEGA and PEG promote the formation of SCs but reduce the crystallinity of HCs, while introducing PPEGA and PEG-b-PPEGA enhances the crystallinity of both HCs and SCs. Additionally, the melting points of SCs in sc-PLA/PPEGA and sc-PLA/PEG-b-PPEGA blends increase with the increasing content of these copolymers.
ACTA POLYMERICA SINICA
(2022)
Article
Polymer Science
Moein Zarei, Marek J. Zwir, Ewa Wisniewska, Beata Michalkiewicz, Miroslawa El Fray
Summary: In this work, the structure-properties relationship of a biodegradable copolymer, PBS-DLS, modified with PEG, was investigated for its processibility in 3D printing and electrospinning. The copolymers were found to be easily processible through both techniques, and the addition of PEG improved their elasticity and hydrophilicity. These findings highlight the potential of these new materials for various applications, including the biomedical sector.
POLYMERS FOR ADVANCED TECHNOLOGIES
(2023)
Article
Polymer Science
Mustafa Abu Ghalia, Yaser Dahman
JOURNAL OF POLYMER RESEARCH
(2015)
Review
Energy & Fuels
Mustafa Abu Ghalia, Yaser Dahman
Review
Polymer Science
Mustafa Abu Ghalia, Yaser Dahman
JOURNAL OF POLYMER RESEARCH
(2017)
Article
Engineering, Environmental
Mustafa Abu Ghalia, Yaser Dahman
JOURNAL OF POLYMERS AND THE ENVIRONMENT
(2018)
Article
Materials Science, Characterization & Testing
Mustafa Abu Ghalia, Yaser Dahman
Article
Polymer Science
Mustafa Abu Ghalia, Azman Hassan, Abdirahman Yussuf
JOURNAL OF APPLIED POLYMER SCIENCE
(2011)
Review
Biotechnology & Applied Microbiology
Atika Alhanish, Mustafa Abu Ghalia
Summary: The demand for biobased materials in the bioplastic industry is growing substantially due to increasing awareness of health and environmental concerns. Biobased plasticizers are considered essential additives to boost biobased packaging applications, and the replacement of synthetic plasticizers by biobased counterparts is a growing trend.
BIOTECHNOLOGY PROGRESS
(2021)
Article
Engineering, Biomedical
Mustafa Abu Ghalia, Atika Alhanish
Summary: This study investigates the design and development of a new class of biomaterials, specifically polymer scaffolds, for biomedical applications. The incorporation of cellulose nanofibers (CNF) into the polymer contributes to improved mechanical properties, controlled pore structure, and enhanced biodegradability. The findings highlight the optimal parameters for CNF content, pore size, and porosity in order to achieve desired properties for tissue repair and regeneration.
MEDICAL ENGINEERING & PHYSICS
(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)