Article
Chemistry, Multidisciplinary
Damien Rasselet, Monica Francesca Pucci, Anne-Sophie Caro-Bretelle, Jose-Marie Lopez-Cuesta, Aurelie Taguet
Summary: This study reveals the potential of achieving unique morphologies by adding fumed silica into PLA/PA11 blends, with A200 silica localized in the PA11 phase and R805 silica at the PLA/PA11 interface. Frequency sweep tests confirmed the high dispersion of A200 in PLA and R805 in PA11.
Article
Chemistry, Applied
Shuo Qiu, Yikai Zhou, Geoffrey I. N. Waterhouse, Ruizhi Gong, Jiazhuo Xie, Kun Zhang, Jing Xu
Summary: The biodegradable films made of PBAT and PLA, incorporating POSS(epoxy)8 as a reactive compatibilizer, showed improved interfacial adhesion, mechanical properties, and gas permeability. The addition of POSS(epoxy)8 during film production can offer a simple strategy for producing high-performance biodegradable plastic packaging films.
Article
Engineering, Chemical
Chao Li, Bo Wang, Zuming Shang, Lisheng Yu, Chang Wei, Zhiyong Wei, Lin Sang, Yang Li
Summary: Poly(butylene succinate-co-terephthalate) (PBST) was proposed as an alternative material to poly-(butylene adipate-co-terephthalate) (PBAT) for food packaging and film mulching. However, PBST's low strength led to the blending with poly(lactic acid) (PLA) to improve its mechanical properties. The PBST/PLA blends exhibited superior barrier properties and could prolong the freshness of bananas.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Article
Biochemistry & Molecular Biology
Hyunho Jang, Sangwoo Kwon, Sun Jong Kim, Su-Il Park
Summary: Poly(butylene sebacate-co-terephthalate) (PBSeT) is a biodegradable flexible polymer that can be melt blended with other biodegradable polymers. In this study, PBSeT polyester was synthesized and blended with poly(lactic acid) (PLA) using PLA-grafted maleic anhydride (PLA-g-MAH) compatibilizers. The addition of PLA-g-MAH improved the interfacial adhesion, mechanical properties, and miscibility of the PLA/PBSeT blends. It also enhanced the thermal stability of the blends and facilitated hydrolytic degradation.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Engineering, Environmental
Giulia Infurna, Luigi Botta, Irene Ingargiola, Marco Maniscalco, Giuseppe Caputo, Nadka Tz. Dintcheva
Summary: This study investigates the effect of biochar as a filler for biopolymer blends and highlights its importance. The results show that biochar has different effects on different biopolymers, and the weight ratio of the polymers in the blend also plays an important role. Additionally, a strong chemical interaction is found between biochar and polylactic acid, while no interaction is observed between biochar and poly-butylene adipate-co-terephthalate.
JOURNAL OF POLYMERS AND THE ENVIRONMENT
(2023)
Article
Materials Science, Composites
Mohammad Amini, Shuying Wu
Summary: A polymer blend nanocomposite incorporating nanohydroxyapatite (nHA) exhibited triple-shape memory behavior, with improved thermal stability and storage modulus. However, excess nHA content led to aggregation in the polymers and decreased shape recovery ratio. Increasing thermomechanical cycles had a significant effect on shape memory behavior, showing a synergistic effect with the addition of nanofiller.
COMPOSITES COMMUNICATIONS
(2021)
Article
Polymer Science
Giacomo Damonte, Beatrice Barsanti, Alessandro Pellis, Georg M. Guebitz, Orietta Monticelli
Summary: The aim of this study was to improve and reveal novel properties of PLA-based films through the synthesis of star-shaped polymers with different end functionalities. The research found that the PCL domains in the star-shaped PCL systems were smaller and better adhered to the polymer matrix compared to commercial linear PCL systems. Additionally, the specific characteristics of the PCL domains and the thermal properties of the films were influenced by the nature of the end functionalities of the synthesized PCL.
EUROPEAN POLYMER JOURNAL
(2022)
Article
Biochemistry & Molecular Biology
Badar M. AlruwailI, Usman Saeed, Iqbal Ahmad, Hamad Al-Turaif, Hani Aboalkhair, Abdulmohsen O. AlsaiarI
Summary: This study developed a PLA/PBS blend composite membrane for gas separation, with the addition of MWCNT enhancing tensile strength, porosity, and crystallinity. Gas permeance study revealed that the PLA/PBS blend with 0.5% wt. MWCNT improved gas permeation and selectivity at 4 bar.
Article
Polymer Science
Nalini Sharma, Ajay Singh, Raj Kumar Dutta
Summary: A new biodegradable phosphate formulation PDK was developed in this study, showing good swelling and release performance through the use of PVA, kaolin clay, and DAhP. Under optimal conditions, PDK hydrogel demonstrated the best release and swelling results.
Review
Chemistry, Multidisciplinary
Cezar Tipa, Maria T. Cidade, Joao P. Borges, Luis C. Costa, Jorge C. Silva, Paula I. P. Soares
Summary: In recent decades, there has been a significant interest in the development of new materials, particularly three-dimensional scaffolds, that can meet the diverse needs of the expanding biomedical field. Hydrogels, due to their biocompatibility and ability to mimic the extracellular matrix, have been extensively studied in biomedical applications. However, their poor mechanical integrity and limited cell interaction have limited their broad applicability. To overcome these limitations, researchers have focused on incorporating nanoparticles into polymeric gels to form nanocomposites with tailored functionality and improved properties. This review specifically emphasizes the unique contributions of clay nanoparticles in clay-based nanocomposite hydrogels and their biomedical applications.
Article
Materials Science, Multidisciplinary
Xiaobing Ma, Han Yun, Ningjing Wu, Fukun Niu, Jihang Yu
Summary: In this study, an environmentally friendly and super efficient flame retardant PHEMAP was successfully synthesized and applied to PLA material, forming a flame retardant film with excellent performance. The film has high transparency and good flame retardant effect, and is expected to be widely used in the fields of mobile phones, automotive interiors, and 3D printing.
ACS APPLIED POLYMER MATERIALS
(2021)
Article
Biochemistry & Molecular Biology
Franciani C. Sentanin, Willian R. Caliman, Rodrigo C. Sabadini, Carla C. S. Cavalheiro, Rui F. P. Pereira, Maria M. Silva, Agnieszka Pawlicka
Summary: Nanocomposite polymer electrolytes were synthesized using sodium alginate and modified montmorillonite clays, and characterized by X-ray diffraction and electrochemical impedance spectroscopy. The results showed that adding clay could improve the conductivity of the electrolytes, with higher clay content promoting the formation of intercalated structures.
Article
Polymer Science
Jung Hyun Ahn, Joung Sook Hong, Kyung Hyun Ahn
Summary: This study investigates the improvement of mechanical properties of poly(lactic acid)/thermoplastic polyurethane blend through the analysis of crystallization, morphology, and rheology of clays with different interlayer modifiers and localization. The addition of clay particles further enhances the mechanical properties of the blend. The type and localization of the clay particles at the interface have different effects on the mechanical properties.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Article
Biochemistry & Molecular Biology
Simon Faba, Marina P. Arrieta, Julio Romero, Angel Aguero, Alejandra Torres, Sara Martinez, Emilio Rayon, Maria Jose Galotto
Summary: This study aimed to develop PLA bionanocomposite foams loaded with carvacrol cocrystal by supercritical CO2 for controlled release in food packaging. The results showed that the addition of nanoclay improved the mechanical properties of the composite, and a higher content of C30B increased the incorporation of carvacrol. The prepared nanocomposite foam exhibited lower diffusion coefficient and antioxidant activity.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2024)
Article
Polymer Science
Chanon Wiphanurat, Pran Hanthanon, Sumate Ouipanich, Nathdanai Harnkarnsujarit, Rathanawan Magaraphan, Tarinee Nampitch
Summary: Ternary polymer blends of PLA/PBAT/ENR were prepared via reactive extrusion process. The mechanical properties of HDPE/P811 blends tend to decrease with increasing P811 content, but the tensile strength remains good. The optimum ratio for HDPE/P811 blending is found to be 90/10.
Article
Materials Science, Biomaterials
Ali Shahin, S. A. Ahmad Ramazani, Sima Mehraji, Hamed Eslami
Summary: This study aimed to develop a chitosan/gelatin hyaline film for transplanting corneal epithelial cells, showing that an increase in chitosan concentration can improve transparency and biocompatibility of the produced samples. Additionally, higher chitosan concentration led to increased water permeability and degradability of the samples, as well as significantly improved cell proliferation and viability.
INTERNATIONAL JOURNAL OF POLYMERIC MATERIALS AND POLYMERIC BIOMATERIALS
(2022)
Article
Pharmacology & Pharmacy
Mahdi Abasalta, Azadeh Asefnejad, Mohammad Irani, Mohammad Taghi Khorasani, Ahmad Ramazani Saadatabadi
Summary: In this study, N-CMCS/PVA/PCL nanofibers and core-shell nanofibers were prepared using coaxial electrospinning method, and the anticancer drug DOX was successfully loaded into the fibers. The adsorption and controlled release of DOX were compared between the fibers, and the results demonstrated the higher potential of coaxial nanofibers.
JOURNAL OF DRUG DELIVERY SCIENCE AND TECHNOLOGY
(2022)
Article
Materials Science, Textiles
Reza Amirabad, Ahmad Ramazani Saadatabadi, Mohammad Pourjahanbakhsh, M. Hossein Siadati
Summary: In this study, flexible thermoelectric fabrics were successfully fabricated by coating polyester/yarn fabrics with PANI/CNT nanocomposite with varying CNT content. The addition of CNT led to significant improvements in both electrical conductivity and Seebeck coefficient of the fabric, with the sample containing 5 wt% CNT exhibiting the highest performance.
JOURNAL OF INDUSTRIAL TEXTILES
(2022)
Article
Chemistry, Physical
Ali Kariman Moghaddam, Shadfar Davoodi, S. A. Ahmad Ramazani, Konstantin M. Minaev
Summary: The development of an accurate rheological model for drilling fluid is crucial in optimizing its flow. Traditional models fail to predict changing conditions, viscoelastic behavior, and microstructural behaviors of the fluid. This study introduces a novel model that connects microscopic and macroscopic properties, accurately predicts rheological material functions, and distinguishes the contribution of each component in the drilling fluid rheology.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Engineering, Biomedical
Hamidreza Sahrayi, Elham Hosseini, Ahmad Ramazani Saadatabadi, Seyed Mohammad Atyabi, Haleh Bakhshandeh, Marjan Mohamadali, Amir Aidun, Bahareh Farasati Far
Summary: This research investigated the fabrication, surface treatment, and evaluation of novel self-stimuli conductive biocompatible and degradable nanocomposite scaffolds for neural tissue engineering. The results showed that the samples with 2.5% PAG exhibited the best physicochemical and biological properties.
Article
Polymer Science
Hossein Ebrahimi, Farhad Sharif, S. A. Ahmad Ramazani
Summary: In this study, the incorporation of titanium dioxide nanoparticles into the polymeric matrix was explored to obtain nanocomposites with improved functionality. The modified TiO2 nanoparticles with varying weight fractions and concentrations of coupling agents were used as initiators for in-situ grafting ring-opening polymerization. The results showed that samples with higher concentrations of the coupling agents exhibited superior thermal and mechanical properties compared to neat polylactide.
IRANIAN POLYMER JOURNAL
(2022)
Article
Multidisciplinary Sciences
Mohammad Ghaderi, Ahmad S. A. Ramazani, Azadeh Kordzadeh, Mohammad Mahdavian, Eiman Alibakhshi, Arash Ghaderi
Summary: This study focused on evaluating the potential of diphenhydramine hydrochloride (DPH) as an alternative corrosion inhibitor through electrochemical techniques. The results showed that DPH at a concentration of 1000 ppm achieved a corrosion efficiency of 91.43% after 6 hours of immersion. The orientation of DPH molecules on the surface was examined using both electrochemical impedance spectroscopy (EIS) and molecular simulations, confirming horizontal adsorption.
SCIENTIFIC REPORTS
(2022)
Article
Chemistry, Applied
Seyyed Arash Haddadi, Eiman Alibakhshi, Akram Labani Motlagh, Ahmad S. A. Ramazani, Mohammad Ghaderi, Bahram Ramezanzadeh, Mohammad Mahdavian, Mohammad Arjmand
Summary: This study investigated the effects of UCZP and MCZP nanopigments on the rheological, mechanical, and corrosion protection performance of EP coatings. The results showed that silanization of MCZP NPs improved their contact angle and corrosion resistance.
PROGRESS IN ORGANIC COATINGS
(2022)
Article
Biophysics
Mohammadreza Alimohammadi, S. A. Ahmad Ramazani
Summary: The study aimed to improve the bioactivity of PEEK and simulate the piezoelectricity of bone by coating PEEK substrate with a nanocomposite of dispersed PVDF/SPEEK matrix containing nHA and CNF fillers. The modified PEEK showed improved hydrophilicity, better bone-like apatite formation, cell proliferation, and cell attachments. The presence of CNF in the nanocomposite enhanced the material's mechanical properties and piezoelectric performance.
COLLOIDS AND SURFACES B-BIOINTERFACES
(2023)
Article
Materials Science, Multidisciplinary
Ziba Hedayatnasab, Ahmad Ramazani Saadatabadi, Hossein Shirgahi, M. R. Mozafari
Summary: This study optimized the synthesis conditions of Fe3O4 nanoparticles (FeNPs) by examining the effects of synthesis environment and precipitating agent type. It was found that the synthesis environment had a greater impact on the crystallinity and magnetization of FeNPs compared to the precipitating agent. The optimal FeNPs were evaluated for their hyperthermic performance and a safe clinical criterion was used to determine the desirable heat generation within the secure hyperthermia temperature range. An artificial neural network (ANN) with different learning algorithms was used to examine the localized anticancer heat of the FeNPs, and the ANN-BFG model showed the best prediction performance. The particle swarm optimization (PSO) algorithm was then employed to improve the speed rate of the ANN-BFG model. The hybrid ANN-PSO approach demonstrated excellent accuracy, convergence, and precise optimization in predicting the localized temperature under hyperthermia conditions.
MATERIALS RESEARCH BULLETIN
(2023)
Article
Multidisciplinary Sciences
Mohammadreza Alimohammadi, Mohammad Ghaderi, S. A. Ahmad Ramazani, Mohammad Mahdavian
Summary: Metal corrosion is a major issue in industries, and introducing corrosion inhibitors is a viable solution for protecting metal surfaces. However, due to environmental concerns and the toxicity of organic inhibitors, alternative options are being explored. This study focused on the use of Falcaria Vulgaris (FV) leaves extract to mitigate mild steel (MS) corrosion in a 1 M HCl environment. The results showed that the addition of 800 ppm of FV leaves extract reduced the corrosion current density and exhibited high inhibition efficiency after 6 hours of immersion.
SCIENTIFIC REPORTS
(2023)
Article
Biology
Azadeh Kordzadeh, S. A. Ahmad Ramazani, Shohreh Mashayekhan
Summary: This study utilized molecular dynamics simulation to investigate the adsorption and encapsulation of melittin on covalently functionalized carbon nanotubes (fCNTs). The results demonstrate that the functional groups on the CNTs significantly impact the conformation of melittin.
COMPUTERS IN BIOLOGY AND MEDICINE
(2023)
Correction
Chemistry, Physical
Seyyed Arash Haddadi, Saeed Ghaderi, Mohsen Sadeghi, Behzad Gorji, Farhad Ahmadijokani, S. A. Ahmad Ramazani, Mohammad Mahdavian, Mohammad Arjmand
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Multidisciplinary Sciences
Hamideh Javidi, Ahmad Ramazani Saadatabadi, S. K. Sadrnezhaad, Najmeh Najmoddin
Summary: To address the challenges in nerve tissue restoration, a new nerve guidance channel was developed in this study. The conduit showed antibacterial activity, electrical conductivity, and piezoelectric property. It significantly induced PC12 cell differentiation and promoted nerve regeneration.
SCIENTIFIC REPORTS
(2023)
Article
Multidisciplinary Sciences
Naeemeh Peidavosi, Mahmoud Azami, Nima Beheshtizadeh, Ahmad Ramazani Saadatabadi
Summary: Recent trends in tissue engineering technology have focused on utilizing bioactive scaffolds to generate electrical potentials that have appropriate effects on cell behaviors. This study aimed to develop a piezo-electrical stimuli scaffold with high electrical conductivity for bone and cartilage tissue regeneration. The scaffolds were prepared using Barium Titanate nanoparticles as a piezoelectric material and highly conductive Polyaniline nanoparticles as a dopant. The conductivity and piezoelectric properties of the scaffolds were evaluated, and it was found that the PCL/PANI5/BT40 composite exhibited unprecedented voltage and desirable properties for tissue engineering applications.
SCIENTIFIC REPORTS
(2022)
