Article
Polymer Science
Mingzhen Zhao, Hengxi Chen, Zewen Zhu, Xiuzhu Zhu, Yufeng Quan, Zhuoran Zhang, Hong -Mao Wu, Jen -Long Wu, Wen-Hao Kang, Qingsheng Wang, Hung-Jue Sue
Summary: This study developed a nanoplatelet functionalization method to achieve well exfoliation and multifunctionality in polyethylene. By grafting fire retarding molecules, the flame retardancy of polyethylene was further improved. The study discussed the practicality of preparing multifunctional polymer nanocomposites.
Article
Polymer Science
Reem D. Alghamdi, Arief Yudhanto, Gilles Lubineau, Edy Abou-Hamad, Nikos Hadjichristidis
Summary: In this study, polyolefin nanocomposites were fabricated using the surface-initiated polyhomologation (SI-polyhomologation) technique, and their physiochemical properties were investigated. The results showed that the grafting extent of polyethylene plays a significant role in the dispersion of fillers and the mechanical properties of the nanocomposites.
Article
Polymer Science
Wei You, Wenzhi Cui, Wei Yu
Summary: This study conducted experiments on silica nanoparticles with different surface modifications to understand their effects on the moduli of polymer nanocomposites. It was found that the interfacial layer volume fraction in PNCs showed a non-monotone variation with increasing particle concentrations. Additionally, the effective interfacial thickness was determined using hydrodynamic enhancement of the rubbery plateau modulus.
Article
Polymer Science
Yang Liu, Xun Zhang, Quanxin Gao, Hongliang Huang, Yongli Liu, Minghua Min, Lumin Wang
Summary: In this study, silver nanoparticles and MAH-g-POE were used as enhancement additives to improve the performance of POM homopolymer. The addition of MAH-g-POE improved the interfacial adhesion between silver nanoparticles and POM matrix, while the combined addition of both additives significantly enhanced the thermal stability, crystallization properties, and mechanical properties of the ternary nanocomposites. However, the storage modulus of the ternary nanocomposites decreased with the increase in Ag/MAH-g-POE content due to the reduction in rigidity caused by MAH-g-POE elastomer.
Article
Polymer Science
Nitin K. Hansoge, Agam Gupta, Heather White, Andrea Giuntoli, Sinan Keten
Summary: Understanding the interactions between polymer-grafted nanoparticles is crucial for predicting the mechanical properties of nanocomposites they form. The study developed a computational framework to predict effective pairwise interparticle interactions, showing that repulsive interactions can be expressed as exponential terms and attractive interactions are best captured using a sigmoidal form. Empirical constants in the equations depend linearly on chain length and quadratically on grafting density, allowing for more efficient computational modeling.
Article
Polymer Science
Zhenghao Wu, Subhadeep Pal, Sinan Keten
Summary: We propose a new modeling approach for polymer-grafted nano particles (PGN) using a strain-energy mapping framework and potential of mean force (PMF) calculations. By matching bulk dilation and compression strain-energy densities, we derive the effective interaction between particles in a close-packed lattice configuration. The proposed approach greatly increases computational speed and accelerates the understanding and predictions of emergent properties of PGN materials.
Article
Materials Science, Composites
Yunxia Li, Yiming Song, Dongchun Yang, Sheng Tian, Qin Deng, Xuegang Chen, Zhaobo Wang, Xin Wang, Haiqing Hu, Yilong Wang, Yong Tao, Jian Zhao
Summary: A novel method for covalent functionalization of MoS2 to yield dodecylated MoS2 was developed, leading to the enhanced mechanical characteristics and glass transition temperature of the resulting MoS2/PS composites.
POLYMER COMPOSITES
(2023)
Article
Engineering, Environmental
Yi-Fang Lee, Tzong-Ming Wu
Summary: The synthesis of novel biocompatible aliphatic-aromatic nanocomposites resulted in improved storage modulus of the polymer matrix and slight enhancement in thermal stability, attributed to the formation of covalent bonds between the polymer and the inorganic reinforcements.
JOURNAL OF POLYMERS AND THE ENVIRONMENT
(2022)
Review
Materials Science, Composites
Kadir Bilisik, Mahmuda Akter
Summary: Graphene nanoplatelets (GNPs) have attracted immense attention from the global scientific research community in the 21st century due to their outstanding properties, such as high surface area and thermal-mechanical-electrical performance. When appropriately integrated into polymer matrices, GNPs can enhance the mechanical properties and dispersibility of polymer composites. Functionalization and computational methods have been developed to improve the interfacial strength and predict the properties of GNPs-based nanocomposites, which have a wide range of applications in various industries.
JOURNAL OF REINFORCED PLASTICS AND COMPOSITES
(2022)
Article
Engineering, Manufacturing
Lili Song, Yunfeng Guo, Jing Fan, Xinyan Fan, Yanjun Xie, Zefang Xiao, Haigang Wang, Daxin Liang, Yonggui Wang
Summary: In this study, the brittleness and poor antibacterial properties of PLA were improved by modifying Ag-CNCs with alkyl thiol. The composite films showed improved mechanical properties and antibacterial activity.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2022)
Article
Chemistry, Multidisciplinary
Haibao Zhang, Xian Zhang, Kang Zheng, Xingyou Tian
Summary: In this study, surface modification of h-BN with PGMA chains significantly enhanced the thermal conductivity of EP composites and improved filler-matrix compatibility. The environmentally friendly and easy preparation process makes EP/h-BN-PGMA composites promising for large-scale practical applications in thermal interface materials.
Article
Materials Science, Composites
Nazrul Islam Khan, Sudipta Halder, Subhankar Das, Manjeet S. Goyat
Summary: This study successfully improved the mechanical performance of nanocomposites and hybrid CFRP composites by functionalizing graphitic nanoparticles and incorporating either epoxy or silanization agents.
POLYMER COMPOSITES
(2021)
Article
Polymer Science
Hyeon-Ju Ryu, Nguyen Thu Hang, Sanoj N. Rejinold, Byeongmoon Jeong, Goeun Choi, Jin-Ho Choy
Summary: Nanocomposites of hydrophobic organo-clay/polypropylene were efficiently developed through a solution-blending technique. Among the various clays used, CTA-Mica showed the best improvement in both thermal stability and mechanical properties of the PP nanocomposites compared to CTA-Mt and CTA-Ht.
Article
Materials Science, Multidisciplinary
L. S. De Bortoli, R. de Farias, D. Z. Mezalira, L. M. Schabbach, M. C. Fredel
Summary: In this study, functionalized carbon nanotubes (f-CNT) were used as additives in 3D-printed PLA/CNT nanocomposites to improve their thermal and mechanical properties. The functionalization of CNTs improved their dispersion in the PLA matrix and acted as effective nucleating agents for PLA crystallization, resulting in increased mechanical strength and better interfacial adhesion between printed layers. The addition of as little as 0.5 wt% of f-CNT significantly improved the mechanical properties and maintained the thermal stability of the nanocomposites.
MATERIALS TODAY COMMUNICATIONS
(2022)
Article
Polymer Science
Shaofan Li, Weilong Ju, Guoming Liu, Yunlan Su, Alejandro J. Muller, Dujin Wang
Summary: The properties of polymer nanocomposites (PNCs) are dependent on the dispersion of nanoparticles within the polymer matrix. This study investigates the dispersion and crystallization behaviors of PE/HDPE1289-g-SiO2 PNCs in different polyethylene (PE) matrices. The results show that the dispersion of HDPE1289-g-SiO2 nanoparticles is influenced by the P/N parameter and the similarity between the grafted and matrix polymer chain structures.
Article
Environmental Sciences
Nemanja Barac, Ernest Barcelo, Dusica Stojanovic, Stoja Milovanovic, Petar Uskokovic, Patrick Gane, Katarina Dimic-Misic, Monireh Imani, Djordje Janackovic
Summary: The study investigated the effects of two modifications (supercritical CO2 exposure and coupling agent AMEO silane) on fine-ground calcium carbonate material, revealing that increased surface area enhances reactivity of NO2 with GCC, but the presence of silane inhibits further reactions.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Chemistry, Physical
Jelena Pajnik, Stoja Milovanovic, Dusica Stojanovic, Suzana Dimitrijevic-Brankovic, Ivona Jankovic-Castvan, Petar Uskokovic
Summary: The study impregnated absorbable surgical sutures with natural compound thymol, which exhibited strong antibacterial activity against E. coli and S. aureus. The impregnated material released loaded thymol gradually and retained significant amounts even after 10 days, showing potential application in antibacterial medical devices. The effects of the impregnation process on material properties and its application were detailed using characterization techniques SEM, FTIR, DSC, and DMA.
JOURNAL OF SUPERCRITICAL FLUIDS
(2022)
Article
Food Science & Technology
Ana Salevic, Dusica Stojanovic, Steva Levic, Milena Pantic, Verica Dordevic, Radojica Pesic, Branko Bugarski, Vladimir Pavlovic, Petar Uskokovic, Viktor Nedovic
Summary: This study developed zein-based, edible, functional food-contact materials incorporated with sage extract using solvent casting and electrospinning techniques. The results demonstrated the compatibility between the materials' constituents, effective incorporation of the extract, and enhanced antioxidant and antibacterial activity. These edible materials show great potential as active/bioactive food-contact materials.
Article
Materials Science, Paper & Wood
Mirjana Kostic, Monireh Imani, Aleksandra Ivanovska, Vesna Radojevic, Katarina Dimic-Misic, Nemanja Barac, Dusica Stojanovic, Djordje Janackovic, Petar Uskokovic, Ernest Barcelo, Patrick Gane
Summary: Regenerating cellulose from ionic liquid offers a way to utilize cellulose waste to produce cellulose-CaCO3 composite materials with improved mechanical and thermal stability, potentially replacing oil-based plastics.
Article
Materials Science, Multidisciplinary
Mihailo Mirkovic, Dusica B. Stojanovic, Daniel Mijailovic, Nemanja Barac, Dorde Janackovic, Petar S. Uskokovic
Summary: This study proposes a novel method for producing nanofiber-based filters that can efficiently capture PM2.5 pollutant particles. The incorporation of microporous carbon nanofibers (MCNFs) into the filter media significantly improves the removal efficiency, mechanical and thermal properties of the filters. The use of the PAN/MCNFs filters in a face mask also reduces temperature variation in the facial region.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Nanoscience & Nanotechnology
Marina Bekic, Milos Vasiljevic, Dusica Stojanovic, Vanja Kokol, Dusan Mihajlovic, Dragana Vucevic, Petar Uskokovic, Miodrag Colic, Sergej Tomic
Summary: The purpose of this study was to investigate the immunomodulatory effects of phosphonates conjugated with cellulose nanocrystals (CNCs) in human cells. The results showed that the delivery of 3-AminoPropylphosphonic Acid (ApA) via CNCs induced potent dendritic cell-mediated Th1 polarization, which could have potential application in tumor therapy.
INTERNATIONAL JOURNAL OF NANOMEDICINE
(2022)
Article
Polymer Science
Xiaotao Wang, Wei Hu, Yebin Yang, Yonggui Liao, Wing-Cheung Law, Chak-Yin Tang
Summary: Multifunctional composite nanoparticles with monodispersity and uniform particle size can be synthesized by distillation precipitation polymerization, which were used as core-shell structure and emit visible light under 980nm near-infrared light for developing imaging. These composite nanoparticles have a certain hollow structure after etch of HF and can load DOX with a drug loading rate of 6.23%. The release rate of the drug can reach up to 85.13% under the stimulation of pH = 4 and UV light. The composite nanoparticles show lower cytotoxicity and stable drug release behavior in human breast cancer cells (MCF-7).
EUROPEAN POLYMER JOURNAL
(2023)
Article
Engineering, Biomedical
Andjela Radisavljevic, Dusica B. Stojanovic, Milos Petrovic, Vesna Radojevic, Petar Uskokovic, Mirjana Rajilic-Stojanovic
Summary: In this study, polycaprolactone (PCL) was functionalized with yarrow extract and fabricated into nanofiber mats. The released polyphenols from the nanofibers showed good antioxidant activity and antibacterial effect against Staphylococcus aureus. The PCL/yarrow nanofiber mats also exhibited improved mechanical properties compared to neat PCL nanofibers.
JOURNAL OF BIOMEDICAL MATERIALS RESEARCH PART A
(2023)
Article
Biochemistry & Molecular Biology
Xiaotao Wang, Yebin Yang, Gaowen Zhang, Chak-Yin Tang, Wing-Cheung Law, Cong Yu, Xuanqi Wu, Shuai Li, Yonggui Liao
Summary: Responsive drug release and low toxicity of drug carriers are crucial for controlled release systems. In this study, poly o-nitrobenzyl@UCNP nanocapsules were synthesized using a double functional diffractive o-nitrobenzyl as a crosslinker and methacrylic acid (MAA) as a monomer. These nanocapsules exhibited near-infrared (NIR) light-/pH-responsive properties, allowing efficient drug release upon NIR irradiation. The research also included the study of photodegradation kinetics and the loading of the anticancer drug doxorubicin hydrochloride (DOX). Cytotoxicity studies demonstrated that the release of DOX could be triggered by NIR to effectively kill cancer cells.
Article
Polymer Science
Dusica Stojanovic, Aleksandra Ivanovska, Nemanja Barac, Katarina Dimic-Misic, Mirjana Kostic, Vesna Radojevic, Djordje Janackovic, Petar Uskokovic, Ernest Barcelo, Patrick Gane
Summary: Ionic liquid [BMIM][Cl] was used to prepare biodegradable mulch films with different compositions. The films were characterized using various techniques, and it was found that cellulose and polycaprolactone-containing films exhibited the highest strength and modulus of elasticity. The addition of keratin and ground calcium carbonate further enhanced the performance of the films. The findings of this study contribute to the development of sustainable agriculture.
Article
Food Science & Technology
Ana Salevic-Jelic, Steva Levic, Dusica Stojanovic, Sanja Jeremic, Dunja Miletic, Milena Pantic, Vladimir Pavlovic, Ivana Sredovic Ignjatovic, Petar Uskokovic, Viktor Nedovic
Summary: This study aimed to develop active, biodegradable materials for food packaging by incorporating sage extract (SE) within a zein-gelatin blend by electrospinning and solvent casting. The fabrication techniques, SE incorporation, and its content (5, 10% w/w) determined the materials' properties. Both electrospinning and solvent casting showed promising results, with the latter producing films with higher mechanical resistance and antimicrobial properties, while the former exhibited better antioxidant activity. All formulations also demonstrated rapid complete bio-disintegration in compost.
FOOD PACKAGING AND SHELF LIFE
(2023)
Article
Materials Science, Multidisciplinary
Yuqing Dong, Ka-Wai Yeung, Chak-Yin Tang, Chi Ho Wong, Wing-Cheung Law, Chi-Pong Tsui Gary, Xiaolin Xie
Summary: Transparent polymer electrolytes are crucial for making transparent ionic electroactive polymers. Ionic liquids, particularly those with long alkyl chains, have been commonly used as the ionic source for polymer electrolytes due to their wide electrochemical window and non-volatility. However, the strong ionic interaction in long-chain ILs can impede ion migration and affect the electromechanical deformation of polymer/IL electrolytes.
JOURNAL OF MATERIALS CHEMISTRY C
(2023)
Meeting Abstract
Immunology
M. Bekic, N. Ilic, J. Dokic, D. Radojevic, D. Stojanovic, A. Gruden-Movsesijan, M. Markovic, S. Tomic
EUROPEAN JOURNAL OF IMMUNOLOGY
(2022)
Meeting Abstract
Cell & Tissue Engineering
Petar Uskokovic, Marija Jovanovic, Milos Petrovic, Dusica Stojanovic, Vesna Radojevic
TISSUE ENGINEERING PART A
(2022)
