Article
Polymer Science
Gohar Khachatryan, Karen Khachatryan, Joanna Szczepankowska, Marcel Krzan, Magdalena Krystyjan
Summary: The aim of this study was to design nanocomposites using a simple, low-cost and environmentally friendly synthesis method. Carbon nanostructures were used to reinforce the chitosan/alginate bond, improving the mechanical, solubility, water absorption, and UV radiation protection properties. SEM, FTIR, UV-VIS, and color analysis were used to determine the thickness and mechanical properties of the films. The tests showed uniform distribution of nanostructures and no chemical interactions between nanoparticles and polymers. Enrichment of the polysaccharide composite with graphene oxide and carbon nanotubes positively affected its absorption, mechanical capabilities, and color.
Article
Engineering, Multidisciplinary
Amir Navidfar, Makbule Irmak Peker, Esranur Budak, Caner Unlu, Levent Trabzon
Summary: This study improves the dispersion of nanofillers in polyurethane matrices by preparing three-dimensional nanostructures and adding carbon quantum dots, resulting in enhanced performance of the nanocomposites.
COMPOSITES PART B-ENGINEERING
(2022)
Article
Materials Science, Ceramics
M. Afifi, M. K. Ahmed, Hala A. Ibrahium, Nasser S. Awwad, E. Abdel-Fattah, Mohammad Y. Alshahrani
Summary: This study investigated nanocomposites based on hydroxyapatite (HAP), which showed improved human osteoblast viability and excellent antibacterial activity when combined with CuO and GO. The results suggest that the biomaterials have great biocompatibility for biomedical applications.
CERAMICS INTERNATIONAL
(2022)
Article
Polymer Science
Shuo Wang, Hongqian Xue, Shuang Guo, Meng Cao, Fanglin Cong, Sherif Araby, Qingshi Meng
Summary: The combination of graphene platelets and rubber nanoparticles can develop electrically conductive and toughened epoxy composite adhesives. Graphene platelets form a conductive network while rubber nanoparticles provide a viscoelastic phase, complementing each other to enhance the fracture toughness and electrical conductivity of the adhesives. These composite materials show improved mechanical properties and toughness, as confirmed by tests and microscopy analysis.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Dorothy K. Jones, Taylor A. Watts, Nagarjuna Gavvalapalli
Summary: Graphene nanoplatelets (GNPs) are stable and relatively inexpensive compared to single-layer graphene sheets and carbon nanotubes. Solution-state processing of the active material is desired in most applications, leading to great interest in increasing the concentration and stability of GNP suspension. Different aryl amphiphiles (ArAs) were synthesized and tested with varying aryl hydrophobe sizes and geometries, showing key roles in determining the concentration and stability of GNP dispersions, outperforming previous stabilizers like methylcellulose.
Article
Chemistry, Multidisciplinary
Tristan Nguyen, Anuj Maniyar, Mrinmoy Sarkar, Tapasree Roy Sarkar, Gururaj M. Neelgund
Summary: Cancer is a dreadful disease and the leading cause of death. Breast cancer is the most common invasive cancer in women. In this study, biocompatible nanomaterials CNTs-HAP and GR-HAP were designed to target breast cancer cells and showed significant cytotoxicity and inhibitory effects on cell growth and motility.
Article
Chemistry, Physical
Timofey Averianov, Ekaterina Pomerantseva
Summary: Bilayered vanadium oxide composites with carbon nanotubes and graphene nanoplatelets demonstrate enhanced capacity retention and rate performance compared to pristine oxide, attributed to improved electron transport and heterointerface stabilization effect. In situ synthesis allows for controllable heterointerface, enhancing material functionality.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Multidisciplinary
Lijing Han, Hairui Wang, Qi Tang, Xiurui Lang, Xuemeng Wang, Yingxia Zong, Chengzhong Zong
Summary: A reduced graphene oxide/polypropylene (rGO/PP) dielectric composite with high dielectric constant and low dielectric loss was prepared via encapsulating and reducing graphene oxide, providing a new simple and effective strategy for high-performance dielectric composites.
Review
Materials Science, Multidisciplinary
Shuhan Di, Yuhong Qian, Li Wang, Zhuang Li
Summary: This article presents the interaction processes between 2D materials and biomolecules, and summarizes the method of synthesizing bionic materials using composite materials with biofunctions and their applications in various fields.
JOURNAL OF MATERIALS SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Marie N. Barshutina, Valentyn S. Volkov, Aleksey V. Arsenin, Dmitriy I. Yakubovsky, Alexander V. Melezhik, Alexander N. Blokhin, Alexey G. Tkachev, Alexander V. Lopachev, Vladislav A. Kondrashov
Summary: The paper presents a cost-effective and scalable approach to produce highly homogeneous graphene and CNT-based silicone composites with superior electrical and mechanical properties. The study investigates the influence of processing parameters, graphene/CNT ratio, and hybrid filler loading, finding optimal parameters for superior composite properties. The graphene/CNT hybrid system shows a synergistic effect that prevents aggregation and facilitates dispersion, contributing to the superior properties of the hybrid composites.
Article
Materials Science, Ceramics
Melike Nur Ozder, Fatih Ciftci, Ozge Rencuzogullari, Elif Damla Arisan, Cem Bulent Ustundag
Summary: This study investigates the properties of in situ synthesis of graphene oxide-hydroxyapatite (GO/HA) nanocomposite materials with different doping ratios for bone tissue support applications. The results show that scaffolds containing 0.5% and 1% GO (w/w) exhibit excellent cell proliferation and adhesion, making them promising materials for bone support applications.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Multidisciplinary
Bal Sydulu Singu, Emad S. Goda, Kuk Ro Yoon
Summary: In this study, multiwall carbon nanotubes were used as a reducing agent to prepare CNT-MnO2 nanocomposites by varying the amount of potassium permanganate. The chemical compositions and electrochemical properties of the synthesized materials were analyzed, showing that CNT-MnO2-25 nanocomposites exhibited excellent specific capacitance and capacitance retention.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
R. Kumaran, A. Vinaya Kumar, S. Ramaprabhu, V Subramanian
Summary: The study presented a method for developing electromagnetic interference shielding materials using silver nanoparticles and porous graphene, fabricated through chemical synthesis in polybenzoxazine polymers. The material exhibited excellent conductivity and shielding efficiency, primarily achieved through multiple reflections and induced magnetic dipoles.
NEW JOURNAL OF CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Chandra Sekhar Bongu, Mohan Raj Krishnan, Abdelrahman Soliman, Muhammad Arsalan, Edreese H. Alsharaeh
Summary: This study reports the preparation of three composite materials via a simple ball-milling method and analyzes their performance as supercapacitor electrodes. These composites, especially the MoS2@Graphene (1:9) composite, show improved capacitance compared to pristine graphene and MoS2. The MoS2@Graphene (1:9) composite electrode exhibits high specific capacitance in an electrochemical supercapacitor and is flexible with a long lifespan.
Article
Thermodynamics
Natalia F. Perdigao, Vinicius G. Castro, Glaura G. Silva
Summary: This study evaluates the impact of the resin/curing agent ratio on the glass transition temperature (T-g) of epoxy nanocomposites with different nanofillers. The results show that there is no significant change in T-g or enthalpy change of curing with 1 wt% nanofillers. The robust results obtained by DSC and DMA highlight the importance of the resin/curing agent ratio in ensuring consistent T-g results.
THERMOCHIMICA ACTA
(2022)
Article
Nanoscience & Nanotechnology
Arpit Thomas, Ambrish Kumar, Gopinath Perumal, Ram Kumar Sharma, Vignesh Manivasagam, Ketul Popat, Aditya Ayyagari, Anqi Yu, Shalini Tripathi, Edgar Buck, Bharat Gwalani, Meha Bhogra, Harpreet Singh Arora
Summary: This report presents a new approach to overcome the low energy density of supercapacitors by using physical deformation, chemical dealloying, and microstructure engineering to create high-capacity, energy-dense NiMn alloy electrodes.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Daniel J. Sutherland, Adil M. Rather, Roberta M. Sabino, Sravanthi Vallabhuneni, Wei Wang, Ketul C. Popat, Arun K. Kota
Summary: With the legalization of hemp production, we have developed sustainable and robust slippery surfaces using hemp paper coated with beeswax and infused with hemp oil. These surfaces allow liquids to slide easily without leaving a trace. We have also created hemp-based slippery metal surfaces that display icephobic and antithrombotic properties. These hemp-based surfaces have the potential to be used in various applications such as food packaging, anti-icing coatings, and medical devices.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Correction
Green & Sustainable Science & Technology
Felipe Marin, Adriano Fagali de Souza, Alexandre Mikowski, Luis Henrique Guarnieri Fontanella, Paulo Soares, Luis Norberto Lopez de Lacalle
INTERNATIONAL JOURNAL OF PRECISION ENGINEERING AND MANUFACTURING-GREEN TECHNOLOGY
(2023)
Article
Biotechnology & Applied Microbiology
Vignesh K. Manivasagam, Ketul C. Popat
Summary: The aim is to develop a superhydrophobic implant surface with a novel micro-nano topography using a facile thermochemical process. The blood compatibility on different surfaces is assessed by evaluating hemolysis, fibrinogen adsorption, cell adhesion and identification, thrombin generation, complement activation, and whole blood clotting kinetics. The results indicate that the super-hemo/hydrophobic micro-nano titanium surface improves hemocompatibility, making it highly potential as an implant.
BIOENGINEERING-BASEL
(2023)
Article
Biotechnology & Applied Microbiology
Pearlin Amaan Khan, Aravind Kumar Thoutam, Vasanth Gopal, Aswin Gurumallesh, Shrikant Joshi, Arunkumar Palaniappan, Nicolaie Markocsan, Geetha Manivasagam
Summary: Axial suspension plasma spraying (ASPS) is an alternative technique to atmospheric plasma spraying (APS) that uses a suspension of finer powders as the feedstock. This paper investigates the impact of incorporated graphene nanoplatelets (GNPs) on the behavior of ASPS hydroxyapatite (HAp) coatings. The study characterizes the coatings using various techniques and evaluates their mechanical properties, biocompatibility, and gene expression changes.
BIOENGINEERING-BASEL
(2023)
Article
Materials Science, Multidisciplinary
Pramote Thirathipviwat, Yusuke Onuki, Jithin Vishnu, Praveenkumar Kesavan, Ansheed Raheem, Geetha Manivasagam, Karthik Shankar, Makoto Hasegawa, Shigeo Sato
Summary: A newly developed single BCC phase 30Nb5Ta30Ti15V20Zr refractory high entropy alloy (RHEA) has been designed for low density, high mechanical properties, and superior fretting wear resistance. In this study, the fretting wear resistance of 30Nb5Ta30Ti15V20Zr is compared with Ti6Al4V alloy, and it is found that 30Nb5Ta30Ti15V20Zr demonstrates better fretting wear resistance with low friction coefficient and wear loss. The phase constituent, crystal structure, and mutual interaction of complex composition in 30Nb5Ta30Ti15V20Zr contribute to improving the fretting wear resistance. The superior fretting wear resistance increases the candidacy potential of 30Nb5Ta30Ti15V20Zr RHEA for structural applications, especially under fretting conditions.
Article
Materials Science, Coatings & Films
K. Praveenkumar, S. Sudhagara Rajan, S. Swaroop, Geetha Manivasagam
Summary: Laser shock peening (LSP) is an effective surface modification technique to enhance the properties of metallic materials. This paper reviews recent research on the application of LSP in improving surface characteristics and addressing service challenges in aeroengine materials. It also provides an overview of LSP and its controlling parameters. Challenges and future aspects for improving LSP application and commercialization in the aeroengine industry are discussed based on the authors' experience and published literature.
SURFACE ENGINEERING
(2023)
Article
Chemistry, Physical
Kerolene Barboza da Silva, Joao Pedro Aquiles Carobolante, S. Sudhagara Rajan, Celso Bortolini Junior, Roberta Maia Sabino, Mauricio Rangel Seixas, Roberto Zenhei Nakazato, Ketul C. Popat, Ana Paula Rosifini Alves Claro
Summary: This study characterizes a new Ti-25Ta-25Nb-5Sn alloy for biomedical application. The microstructure, phase formation, mechanical and corrosion properties, as well as the cell culture study, were investigated. The alloy showed increased microhardness and decreased Young's modulus compared to CP Ti, and its corrosion resistance was similar to CP Ti. In vitro experiments demonstrated favorable interactions between the alloy surface and cells. This alloy presents potential for biomedical applications with required properties.
Article
Chemistry, Physical
V. Govind, Kumar K. Praveen, RVaira Vignesh, Ajan Vishnu, Jithin Vishnu, Geetha Manivasagam, Karthik V. Shankar
Summary: This study investigates the effect of solutionizing time on the fretting wear behavior of Al-Si-Mg-Ni hypoeutectic alloy. The results show that the microstructural aspects and grain size of the alloy change significantly with varying solutionizing time, leading to improved wear resistance, reduced friction coefficient, and smaller wear scar size.
Article
Green & Sustainable Science & Technology
Rahul Davis, Abhishek Singh, Robson Bruno Dutra Pereira, Roberta Maia Sabino, Ketul Popat, Paulo Soares, Lincoln Cardoso Brandao
Summary: Shape memory alloys are used in medical devices and surgical implants due to their biocompatibility. However, machining these alloys into intricate patterns is challenging due to their poor thermal conductivity and resulting poor surface finish. This study investigates the effect of milling parameters and different cooling strategies on the surface integrity of the alloy, and also explores cryogenic treatment of the cutting tool for further improvement of surface finish.
INTERNATIONAL JOURNAL OF PRECISION ENGINEERING AND MANUFACTURING-GREEN TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Beata Kaczmarek-Szczepanska, Lidia Zasada, Marta Michalska-Sionkowska, Jithin Vishnu, Geetha Manivasagam
Summary: Titanium is widely used in implantology due to its reduced modulus, improved corrosion resistance, and good biocompatibility. However, it lacks inherent antibacterial and antioxidant activity. Tannic acid, a natural polyphenol compound, has excellent antibacterial, antioxidant, and antimutagenic activity. Coating the titanium surface with tannic acid shows potential for reducing risks in implant applications and increasing implant longevity. This study deposited tannic acid on titanium surfaces, resulting in slightly improved hydrophilicity and surface energy. The release kinetics of tannic acid from the surface showed an initial burst effect followed by a gradual decrease over time. Hemolysis tests confirmed the erythrocyte compatibility of the coated surfaces. The improved hydrophilicity, release kinetics of tannic acid, and reduced hemolysis rates demonstrate the potential of this simple technique in implant surface engineering applications.
APPLIED SCIENCES-BASEL
(2023)
Article
Materials Science, Multidisciplinary
C. Uva Narayanan, P. Suya Prem Anand, Geetha Manivasagam, V Ezhilmaran
Summary: The formation of micro-motion between the metallic plate and screw used for bone fixation in biomedical applications can cause health risks to patients due to leaching ion elements. Polylactic acid is favored as a replacement for metal alloys in temporary implants, but its low mechanical properties make it less preferred as a fixation device. To improve the mechanical properties, polylactic acid was printed using FDM technique in both horizontal and vertical orientations. The post-heat-treated horizontal sample B2 showed a higher compression yield strength and a lower coefficient of friction, making it more suitable for bone fixation.
ADVANCES IN MATERIALS AND PROCESSING TECHNOLOGIES
(2023)
Article
Engineering, Biomedical
Vladja Torno, Paulo Soares
Summary: The aim of this study was to investigate the effect of different polymeric matrices and their crosslink density on the mechanical and tribological properties of dental resin composites. Results showed that the polymeric matrix composition had a significant effect on the hardness and elastic modulus of the resins. The wear resistance of the composites was also influenced by their crosslinking density and mechanical properties.
JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS
(2023)
Article
Optics
K. Praveenkumar, S. Swaroop, Geetha Manivasagam
Summary: The effect of laser peening without coating (LPwC) on the tribological behavior of Ti-6Al-4 V alloy at ambient and elevated temperatures was investigated. The results showed that after peening, the samples had maximum compressive residual stress and increased hardness. Additionally, the LPwC samples exhibited a decrease in average grain size and an increase in low-angle grain boundaries compared to the unpeened samples. The wear mechanisms of the LPwC samples were milder than those of the unpeened samples, resulting in reduced wear volume loss.
OPTICS AND LASER TECHNOLOGY
(2023)
Article
Materials Science, Biomaterials
Mohammadreza Kasravi, Alireza Yaghoobi, Tahereh Tayebi, Mahsa Hojabri, Abdolkarim Talebi Taheri, Fatemeh Shirzad, Bahram Jambar Nooshin, Radman Mazloomnejad, Armin Ahmadi, Fatemeh A. Tehrani, Ghasem Yazdanpanah, Mohammad Hadi Farjoo, Hassan Niknejad
Summary: As a promising approach in translational medicine, the decellularization of discarded livers to produce bioscaffolds that support recellularization has potential in overcoming the limitations of conventional liver transplantation. In this study, the researchers investigated the use of matrix metalloproteinase (MMP) inhibition to preserve the extracellular matrix (ECM) during liver decellularization. The results demonstrated that the application of an MMP inhibitor significantly improved the preservation of ECM components and mechanical properties of the bioscaffolds, which supported cell viability and function in vitro. The study also confirmed that the MMP inhibition led to the inhibition of MMP2 and MMP9, providing a novel method to enhance ECM preservation during liver decellularization.
BIOMATERIALS ADVANCES
(2024)
Article
Materials Science, Biomaterials
Mohammadsadegh Nadimifar, Weiguang Jin, Clara Coll-Satue, Gizem Bor, Paul Joseph Kempen, Ali Akbar Moosavi-Movahedi, Leticia Hosta-Rigau
Summary: This study presents a metal-phenolic self-assembly approach that can prepare nanoparticles fully made of hemoglobin. The nanoparticles exhibit good oxygen binding and releasing capabilities.
BIOMATERIALS ADVANCES
(2024)
Article
Materials Science, Biomaterials
Jyoti Kumari, Roel Hammink, Jochem Baaij, Frank A. D. T. G. Wagener, Paul H. J. Kouwer
Summary: Fibrosis is the formation of fibrous connective tissue in response to injury, leading to organ dysfunction. A novel hybrid hydrogel combining synthetic polyisocyanide with hyaluronic acid has been developed, showing strong antifibrotic properties.
BIOMATERIALS ADVANCES
(2024)
Letter
Materials Science, Biomaterials
Melissa Machado Rodrigues, Cristian Padilha Fontoura, Charlene Silvestrin Celi Garcia, Sandro Tomaz Martins, Joao Antonio Pegas Henriques, Carlos Alejandro Figueroa, Mariana Roesch Ely, Cesar Aguzzoli
BIOMATERIALS ADVANCES
(2024)
Article
Materials Science, Biomaterials
Jessica Polak, David Sachs, Nino Scherrer, Adrian Suess, Huan Liu, Mitchell Levesque, Sabine Werner, Edoardo Mazza, Gaetana Restivo, Mirko Meboldt, Costanza Giampietro
Summary: Human skin equivalents (HSEs) play a crucial role in tissue engineering. This study introduces a 3D-printed culture insert to apply a static radial constraint on HSEs and examines its effects on tissue characteristics. The results show that the diameter of the culture insert significantly influences tissue contraction, fibroblast and matrix organization, keratinocyte differentiation, epidermal stratification, and basement membrane formation. This study provides important insights for the design of skin tissue engineering.
BIOMATERIALS ADVANCES
(2024)
Review
Materials Science, Biomaterials
Shiliang Chen, Tianming Du, Hanbing Zhang, Jing Qi, Yanping Zhang, Yongliang Mu, Aike Qiao
Summary: This paper reviewed the primary methods for improving the overall properties of biodegradable zinc stents. It discussed the mechanical properties, degradation behavior, and biocompatibility of various improvement strategies. Alloying was found to be the most common, simple, and effective method for improving mechanical properties. Deformation processing and surface modification further improved the mechanical properties and biological activity of zinc alloys. Meanwhile, structural design could endow stents with special properties. Manufacturing zinc alloys with excellent properties and exploring their interaction mechanism with the human body are areas for future research.
BIOMATERIALS ADVANCES
(2024)
