Article
Multidisciplinary Sciences
Taksid Charasseangpaisarn, Chairat Wiwatwarrapan, Pasutha Thunyakitpisal, Viritpon Srimaneepong
Summary: This study aimed to investigate the optimal ratio of PMMA/PLA blends for potential dental applications. The results showed that increasing PMMA content in the blend increased the Tg, and the blend exhibited superior flexural properties compared to neat PMMA and neat PLA. The biocompatibility did not differ among different composition ratios.
SCIENTIFIC REPORTS
(2023)
Article
Polymer Science
Hu Qiao, Abderrahim Maazouz, Khalid Lamnawar
Summary: The present work aimed to investigate how the composition and physico-chemical properties affect the rheology, morphology, miscibility, and thermal stability of poly(lactic acid) (PLA)-poly(hydroxybutyrate-co-hydroxyvalerate) (PHBV) biopolymer blends obtained by melt mixing. The study revealed the thermo-rheological complexity of the PLA/PHBV blends in the melt, especially for PLA-rich blends, which exhibited irregularly structured morphologies due to highly mismatched viscoelastic properties. The miscibility of the blends was also affected by the lower thermal stability of PLA and PHBV. However, the melt-induced degradation process of the blends seemed to improve their miscibility and thermo-rheological simplicity to some extent.
Article
Polymer Science
Adrian Korycki, Christian Garnier, Amandine Abadie, Valerie Nassiet, Charles Tarek Sultan, France Chabert
Summary: The study elaborated PEEK/PES blends with partial miscibility by melt mixing with phenolphthalein, which was confirmed by DSC and DMTA analysis. Phenolphthalein acted as a compatibilizer and plasticizer for the blends, resulting in a softened PEEK phase and improved interfacial adhesion with PES. Additionally, the storage modulus in the glassy region of the blends remained similar to pure PEEK due to the aromatic moieties in phenolphthalein.
Article
Materials Science, Multidisciplinary
Anchan Khankhuean, Kankavee Sukthavorn, Nollapan Nootsuwan, Chatchai Veranitisagul, Apirat Laobuthee
Summary: Poly(lactic acid) (PLA) and nano-silver-coated porous clay heterostructure (PCH) hybrid films were fabricated using a twin-screw extruder. Addition of Ag/PCH fillers enhanced the dielectric properties of the hybrid films, increasing the dielectric constant almost 10 times higher than that of PLA. Furthermore, Ag/PCH improved the mechanical properties of PLA. Therefore, PLA-Ag/PCH and BOPLA-Ag/PCH hybrid films derived from biodegradable PLA can be used as dielectric films in capacitors.
ACS APPLIED POLYMER MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Anchan Khankhuean, Kankavee Sukthavorn, Nollapan Nootsuwan, Chatchai Veranitisagul, Apirat Laobuthee
Summary: Poly(lactic acid) (PLA) and nano-silver-coated porous clay heterostructure (PCH) hybrid films were successfully fabricated to enhance the dielectric properties of PLA. Ag/PCH fillers were found to significantly increase the dielectric constant of hybrid films. The BOPLA-Ag/PCH films showed better dielectric properties than traditional BOPP films, making them potential candidates for capacitors.
ACS APPLIED POLYMER MATERIALS
(2023)
Article
Engineering, Environmental
Pankaj Agrawal, Aylanna P. M. Araujo, Gustavo F. Brito, Shirley N. Cavalcanti, Amanda M. Alves, Daniel M. G. Freitas, Tomas J. A. Melo
Summary: The study investigated the effects of OMMT and OVT clays, as well as EMA-GMA copolymer, on the properties of PLA/BioPE composites, showing improvements in impact strength and reductions in glass transition and cold crystallization temperatures. Rheological properties were significantly altered with the addition of EMA-GMA copolymer to the biocomposites.
JOURNAL OF POLYMERS AND THE ENVIRONMENT
(2021)
Article
Polymer Science
Muhammad Saeed Ullah, Rumeysa Yildirim, Lulia Caraseva, Ester Zuza, Guralp Ozkoc, Mehmet Kodal
Summary: This study investigates the effect of mono- and multi-epoxide POSS nanoparticles on the compatibility of PLA/PBS blends from a rheological perspective. The addition of PBS reduces the viscosity and moduli, indicating weak interactions between polymers. However, the presence of MoEpPOSS and MuEpPOSS increases viscosity and moduli by forming complex polymeric structures. MuEpPOSS shows stronger interaction due to its multiple epoxide groups. The introduction of POSS improves dispersion, phase homogeneity, and compatibility, as observed in the Cole-Cole plots, and enhances interfacial adhesion.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Materials Science, Multidisciplinary
Jissy Jacob, Vijay Robert, Ravi Babu Valapa, Sunny Kuriakose, Sabu Thomas, Sravanthi Loganathan
Summary: The search for sustainable plastics is driven by the environmental pollution issues associated with petrochemical-derived plastics. Bioplastics, such as poly(lactic acid) (PLA), are increasingly being used in packaging due to limited fuel resources. However, poor ductility and gas barrier characteristics limit the use of PLA as food packaging material. This study aims to overcome these limitations by fabricating PLA/polyethylenimine-modified mesoporous silica (PEI-MS) composites. The influence of PEI content in MS and wt % loadings of optimized PEI content in MS on the properties of PLA is investigated in detail. The results show that PEI-MS modification improves the thermal stability and mechanical properties of PLA.
ACS APPLIED POLYMER MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Jissy Jacob, Vijay Robert, Ravi Babu Valapa, Sunny Kuriakose, Sabu Thomas, Sravanthi Loganathan
Summary: This study focuses on the fabrication of PLA/PEI-MS composites to improve the limitations of PLA as food packaging material. The addition of PEI-MS enhanced thermal stability and mechanical properties while reducing oxygen transmission rate for PLA composites.
ACS APPLIED POLYMER MATERIALS
(2022)
Article
Biochemistry & Molecular Biology
Antoine Gallos, Jean-Marc Crowet, Laurent Michely, Vikram S. Raghuwanshi, Matthieu M. Mention, Valerie Langlois, Manuel Dauchez, Gil Garnier, Florent Allais
Summary: Poly-L-lactic acid (PLA) shows potential as a substitute for oil-based polymers due to its sustainability and transparency, but its low flexibility restricts it to rigid plastic applications. Blending with a ferulic acid-derived biobased additive (BDF) creates a new family of transparent elastomeric materials with shape memory, addressing the issue of rigid plastics lacking elastomeric properties.
Article
Polymer Science
Pardis Lohrasbi, Jafar Khademzadeh Yeganeh
Summary: This research successfully prepared a super toughened poly(lactic acid)/poly(ethylene vinyl acetate) blend by using simultaneous dynamic vulcanization and addition of hydrophobic silica nanoparticles, leading to improved tensile toughness and impact strength through enhanced compatibilization of the blend phases.
POLYMERS FOR ADVANCED TECHNOLOGIES
(2021)
Article
Biochemistry & Molecular Biology
Nour Jaouadi, Mohamed Jaziri, Abderrahim Maazouz, Khalid Lamnawar
Summary: The objective of this study was to investigate multiphase systems based on blends of polylactic acid (PLA) and polyamide 11 (PA11), ranging from blends to multilayers. By using reactive extrusion, PLA/PA11 blends compatibilized with a multifunctionalized epoxide, Joncryl, were obtained. The thermal, morphological, rheological, and mechanical behaviors of these materials were studied. The results revealed that the addition of Joncryl as a compatibilizer significantly reduced particle size and interfacial tension, resulting in ductile behavior in the tensile properties. Furthermore, the effects of interdiffusion and diffuse interphase formation on structure, rheology, and mechanics of compatible multilayered systems fabricated with forced-assembly multilayer coextrusion were investigated based on these findings. This study contributes to a deeper understanding of the interfacial properties, such as rheological, mechanical, and morphological behaviors, and their control in multilayer polymers produced by coextrusion, enabling their use in advanced applications.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Biochemistry & Molecular Biology
Wenjun He, Lin Ye, Phil Coates, Fin Caton-Rose, Xiaowen Zhao
Summary: The addition of poly(lactide-co-caprolactone) (PLCL) segments into poly(L-lactic acid) (PLLA)/poly(D-lactic acid) (PDLA) chains resulted in the development of a fully biodegradable and flexible PLLA/D-PLCL block polymer with long-chain branches and a stereocomplex (SC) crystalline structure. The PLLA/D-PLCL films showed increased complex viscosity/storage modulus, lower tan delta values in the terminal region, and strain-hardening behavior compared to neat PLLA. Through biaxial drawing, the uniformity and non-preferred orientation of the PLLA/D-PLCL films were improved. By introducing PDLA, the phase structure transformed from a sea-island structure to a co-continuous network structure, leading to enhanced tensile strength and elongation at break.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Polymer Science
Qianjin Zhu, Kaixin Chang, Liyan Qi, Xinyi Li, Woming Gao, Qinwei Gao
Summary: In this study, PLLA films were surface-modified using different solutions, leading to changes in their structure and properties. The modification with PDLA weakened the crystal structure of the films, while modification with PDLAG increased the stereocomplex (SC) structure and decreased the homogeneous crystal (HC) structure.
Article
Engineering, Environmental
Soojin Kwon, Marielis C. C. Zambrano, Joel J. J. Pawlak, Ericka Ford, Richard A. A. Venditti
Summary: This study investigates the interaction between biodegradable polymer PHB and non-biodegradable polymer PP by blending them and spinning them into fiber form. The addition of PP is found to significantly hinder the biodegradation of PHB. Furthermore, it is shown that increasing the miscibility between the two polymers using a compatibilizer MAPP can decrease the biodegradability of PHB.
JOURNAL OF POLYMERS AND THE ENVIRONMENT
(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)