Article
Polymer Science
Dalia E. Abulyazied, Antoaneta Ene
Summary: This review focuses on nanoclay-reinforced polymers, discussing the structure of layered silicate clay, methods for clay material modification, general characterization techniques, synthesis methods, properties of polymer-clay nanocomposites (PCNs), and specific applications in various industries. Examples from scientific literature are provided to illustrate the discussion. The primary goal is to provide an up-to-date survey of polymer-clay nanocomposites and their specific applications.
Article
Engineering, Chemical
Sarah Hashemi Astaneh, Fatemeh Goharpey, Reza Foudazi
Summary: This study investigates the compatibilizing mechanism of nanoclay in binary polymer blends, showing that the interfacial tension of the system is significantly reduced when organoclay is incorporated in the PA6 phase. Microscopic observations demonstrate that locating nanoclay at the interface of PA6 and PS can effectively reduce the interfacial tension.
POLYMER ENGINEERING AND SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Sapokazi Timakwe, Bongiwe Silwana, Mangaka C. Matoetoe
Summary: This study investigated the functionalisation of three fractions of nanoclay (nanomer 1.44P) with silver (Ag), resulting in the formation of silver nanoclay composites (Ag/nanomer 1.44P). The optical and electrochemical properties of the functionalised nanoclay were examined, and various characterisation techniques, including optical, morphology, and electrochemical methods, were employed. The presence of functional groups in the FTIR spectrum of Ag/nanomer 1.44P, compared to silver and pure nanomer 1.44P, indicated a successful reaction and functionalisation of nanomer 1.44P with silver. XRD data showed diffraction peaks within the silver spectrum range, with decreasing intensity as the concentration of nanomer 1.44P increased. SEM images revealed well-dispersed particles of different shapes, with average sizes ranging from 2.5 nm to 27.5 nm, depending on the concentration of nanomer 1.44P. The decrease in diffusion coefficient values and electron transfer rates with increasing nanomer 1.44P concentration indicated changes in nanocomposite sizes.
Article
Polymer Science
H. R. Lopez-Cabrera, U. Figueroa-Lopez, A. C. Taylor, A. Guevara-Morales
Summary: Polymer nanoclay composites have significant improvements in mechanical, thermal and barrier properties. However, their effect on dynamic fracture resistance during fast fracture events has not been studied. In this study, the addition of nanoclays to HDPE was found to enhance its rapid crack propagation resistance and improve its properties. The increase in energy consumption and toughening effect of nanoclays prevailed, making it suitable for applications requiring prevention of rapid crack propagation.
Article
Polymer Science
Bich-Nam Jung, Hyun-Wook Jung, Dong-Ho Kang, Gi-Hong Kim, Jin-Kie Shim
Summary: In this study, PP/nanoclay nanocomposites were prepared by biaxial stretching method, which showed improved oxygen barrier properties with increased draw ratio and nanoclay content, resulting in a reduced oxygen permeability value of 43.5 cc center dot mm/m(2)center dot day center dot atm. The composite also exhibited stable oxygen permeability values under increased relative humidity, along with enhanced mechanical and thermal properties. The biaxially-stretched PP/nanoclay nanocomposite shows potential as a replacement for multi-layered packaging materials.
Article
Materials Science, Characterization & Testing
B. Elamvazhudi, S. Gopalakannan
Summary: Polymer composites are widely used in lightweight construction due to their high strength-to-weight ratio and low cost. However, exposure to adverse environmental conditions can degrade their mechanical properties. This study investigates the long-term performance of nanoclay/titanium dioxide-modified carbon/glass-reinforced hybrid composites in a seawater environment. The addition of nanofillers and carbon/glass hybridization significantly affects water barrier properties and mechanical property decay.
JOURNAL OF TESTING AND EVALUATION
(2023)
Article
Polymer Science
Edwin Paul Nelson Esther, Balaji Venkatesan, Pallam Sravankumar, Selvam Ramasamy
Summary: This study aimed to synthesize and characterize a bioresin called cardanol from cashew nutshell liquid and use it to create polymer composites. Sisal fibers were dried, chemically treated, and incorporated into the composites. The mechanical and thermal behavior of the composites with different levels of nanoclay were examined. The results showed that increasing the nanoclay content up to 5% improved the mechanical properties.
POLYMER INTERNATIONAL
(2023)
Article
Materials Science, Multidisciplinary
Daksh Shelly, Tarun Nanda, Rajeev Mehta
Summary: The research investigates the impact of nanoclay silanization/compatibilization on epoxy-clay-based glass fiber reinforced composites, revealing that silane treatment can improve the izod impact strength and tensile properties of the materials. Acetone washing of the silanized clay was found to have a negative impact on tensile properties. Proper silanization treatment can lead to better performance of the composites.
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART L-JOURNAL OF MATERIALS-DESIGN AND APPLICATIONS
(2021)
Article
Polymer Science
Madara Ziganova, Remo Merijs-Meri, Janis Zicans, Tatjana Ivanova, Ivan Bochkov, Martins Kalnins, Andrzej K. Bledzki, Paulius P. Danilovas
Summary: This study focuses on spelt husk and nanoclay-modified polypropylene composites for injection-moulding applications. The addition of nanoclay fillers has insignificant influence on the viscosity of the composites, but it improves the tensile and flexural modules and thermal stability. Natural materials like agricultural residues and clay minerals show potential in enhancing the stiffness and thermal properties of polypropylene composites.
Article
Engineering, Environmental
Navid Joupari, Saeed Bazgir, Mahsa Ansari, Zahra Salek
Summary: This article introduces a unique method using cellulose fiber/in situ intercalated nanoclay composite to treat paper wastewater, and evaluates the samples with different testing methods. The results show that the treated water is suitable for reuse or discharge into the environment.
JOURNAL OF POLYMERS AND THE ENVIRONMENT
(2022)
Article
Polymer Science
Helena Oliver-Ortega, Victor Vandemoortele, Alba Bala, Fernando Julian, Jose Alberto Mendez, Francesc Xavier Espinach
Summary: This study focused on developing composite materials based on PLA reinforced with bentonite nanoparticles to produce films with improved barrier properties against water vapor transportation. The dispersion of nanoparticles reduced water vapor diffusion by over 22% and met migration standards for food packaging. However, the presence of nanoclays decreased the biodegradable capacity of the materials.
Article
Materials Science, Textiles
Yasser Zare, Sungsoo Rhim, Kyong Yop Rhee
Summary: In this study, a model is proposed to simulate the stiffness of polymer nanocomposites, focusing on the flawed interphase section surrounding dispersed and networked nanoclay. Experimental data and parametric examines validate the established model. The modulus of nanocomposites is influenced by various factors, including interfacial shear modulus, interphase depth, and clay portion in the networks.
FIBERS AND POLYMERS
(2021)
Article
Materials Science, Composites
Marta Zaccone, Irene Kociolek, Alberto Frache, Costanzo Bellini, Vittorio Di Cocco, Marco Monti
Summary: This paper evaluates the abrasion resistance of a carbon fiber composite filled with layered-silicate clay nanoparticles. The study investigates the dispersion and performance of the clay-epoxy nanocomposite, and determines the optimal content for fiber composite production. The nanocomposite mixture is prepared by dispersing clay nanoparticles in the epoxy monomer, followed by vacuum infusion to produce the fiber reinforced composite. The presence of nanoclay reduces weight loss and damage on the impacted surface.
POLYMER COMPOSITES
(2023)
Article
Polymer Science
Lin Xu, Samuel C. Lamont, Tao Li, Ying Zhang, Wenlong Pan, Chongyi Gao, Chen Zhu, Si Chen, Hongwei Hu, Jianning Ding, Franck J. Vernerey
Summary: We investigated the mechanical properties of a magnetic temperature-sensitive hydrogel with varying concentrations of covalent and physical cross-linking. Increasing the nanoclay content improved both strength and toughness in the double network materials due to the strong viscoplastic behavior of the physical nanoclay network. Our findings suggest that the yield-stress behavior of the nanoclay network and load-sharing interactions between the PNIPAAm and nanoclay are responsible for the observed trends. Additionally, we found a strong correlation between the mass ratio of covalent cross-linker used and fractional percolation of the PNIPAAm network.
Article
Polymer Science
Bunsita Wongvasana, Bencha Thongnuanchan, Abdulhakim Masa, Hiromu Saito, Tadamoto Sakai, Natinee Lopattananon
Summary: By adding nano-fillers, different natural rubber nanocomposites have distinct reinforcement effects and properties. The addition of nanoclay can accelerate the crystallization process of rubber, resulting in higher tensile strength. On the other hand, the addition of cellulose nanofiber can form immobilized rubber, which strengthens the stiffness of the material at the interface. These nanocomposites have a wide range of potential applications, especially in the automotive and electronic device fields.
Article
Materials Science, Multidisciplinary
Indranil Chakraborty, Suryasarathi Bose, Kaushik Chatterjee
Summary: With the increasing usage of electronic gadgets, Electromagnetic (EM) pollution has become a pressing concern. A lightweight and flexible shield is in huge demand to comply with modern electronics. In this study, designer core-shell porous nanospheres (PNSs) are synthesized, and their composites with multiwalled carbon nanotubes (MWCNTs) are developed in ethylene-vinyl acetate (EVA) with excellent EM interference (EMI) shielding ability. The as-prepared Fe3O4 PNSs are coated with Ag by electroless deposition to enhance their effectiveness.
ADVANCED ENGINEERING MATERIALS
(2023)
Review
Engineering, Environmental
Arkodip Mandal, Kaushik Chatterjee
Summary: 4D bioprinting using water as a stimulus shows great potential in tissue engineering by addressing the challenges of smart hydrogels and cytocompatible stimuli.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Polymer Science
Deepak Patil, Vibhanshu Golia, Maya Overland, Marshall Stoller, Kaushik Chatterjee
Summary: This study used the reactive ion etching (RIE) technique to create cicada wing-inspired nanotopography on commercially pure (CP) nitrile sheets and nitrile gloves for medical use. The etched nitrile surfaces showed reduced bacterial colonization and membrane damage against P. aeruginosa. These findings have implications in designing next-generation personal protective gear and other important applications in the age of antimicrobial resistance.
Article
Biochemistry & Molecular Biology
Sushma Indrakumar, Akshat Joshi, Tapan Kumar Dash, Vivek Mishra, Bharat Tandon, Kaushik Chatterjee
Summary: The future of burn wound treatment lies in developing bioactive dressings for faster and more effective healing and regeneration. Silk fibroin (SF) hydrogels have proven regenerative abilities and are being explored as a burn wound dressing. A white light-responsive photopolymerization technique was adapted for gelation via photooxidation of tyrosine. The SF gel-incorporated dressing (SFD) fabricated using this technique showed moisture balance ability, cytocompatibility, and scarless healing in an in vivo test.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Polymer Science
Sriram Bharath Gugulothu, Kaushik Chatterjee
Summary: Emerging 4D printing strategies offer improved alternatives to conventional 3D bioprinted structures for tissue engineering. This research developed a bioink consisting of GelMA and PEGDM with a photoinitiator and a photoabsorber, which can change shape upon hydration. The 4D bioprinted gels supported cell viability and proliferation, providing a cytocompatible bioink formulation for tissue engineering.
Article
Engineering, Biomedical
Akshat Joshi, Saswat Choudhury, Vageesh Singh Baghel, Souvik Ghosh, Sumeet Gupta, Debrupa Lahiri, G. K. Ananthasuresh, Kaushik Chatterjee
Summary: In this study, a hydrogel system with defined swelling behaviors was engineered for 4D printing. The hydrogel sheets with pre-programmed infill patterns could rapidly self-roll into tubes in vivo to serve as nerve-guiding conduits for repairing sciatic nerve defects. This research demonstrates the potential of 3D-printed hydrogels for tissue constructs and peripheral nerve repair in regenerative medicine.
ADVANCED HEALTHCARE MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Sumit Ghosh, Nitish Bibhanshu, Satyam Suwas, Kaushik Chatterjee
Summary: The fatigue life of additively manufactured 316L stainless steel can be significantly improved through surface mechanical attrition treatment (SMAT). SMAT induces surface nano-crystallization and increases the resistance to fatigue crack initiation and propagation. After SMAT, the crack initiation site moves from the surface to the sub-surface layer.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2023)
Article
Polymer Science
Joel P. Joseph, Sriram Bharath Gugulothu, Dipankar Nandi, Kaushik Chatterjee
Summary: T cells play a critical role in the immune response and their activation and response can be influenced by the 3D bioprinted matrix and its stiffness. The study reveals differences between 2D and 3D cultures and the impact of matrix stiffness on T cell activation and cytokine release.
Article
Materials Science, Multidisciplinary
Pritiranjan Mondal, Arkodip Mandal, Kaushik Chatterjee
Summary: A generalizable 4D bioprinting technique using graded semi-interpenetrating network (IPN) hydrogels is presented, showing rapid and sequential shape-morphing transformations in two opposite directions upon immersion in water. The bi-directional shape morphing behavior is achieved through anisotropic water uptake and subsequent water redistribution. The study demonstrates the precise programming of spatiotemporal characteristics by rationally designing dual-component hydrogel systems. The hydrogels have the potential to revolutionize the design of soft, deployable devices for minimally invasive drug delivery in the human body.
ADVANCED MATERIALS TECHNOLOGIES
(2023)
Article
Nanoscience & Nanotechnology
Nasera Rizwana, Namrata Maslekar, Kaushik Chatterjee, Yin Yao, Vipul Agarwal, Manasa Nune
Summary: This study developed a multimodal bioink that serves as both a cell carrier and a free radical scavenger for treating peripheral nerve injury. Good printability of the bioink and shape fidelity of the bioprinted structure were achieved using a dual crosslinking method. A cell viability study demonstrated that the cells remained compatible and viable even after the printing process.
ACS APPLIED NANO MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Snigdha Roy Barman, Pratik Gavit, Saswat Chowdhury, Kaushik Chatterjee, Amit Nain
Summary: Water pollution is a growing threat, and 3D printing technology shows promise in wastewater treatment. It allows for the fabrication of customized ultrathin membranes and various membrane components, highlighting its unique advantages and potential applications.
Article
Chemistry, Multidisciplinary
Sriram Bharath Gugulothu, Sonal Asthana, Shervanthi Homer-Vanniasinkam, Kaushik Chatterjee
Summary: Three-dimensional bioprinting technologies using photopolymerizable bioinks have gained significant attention for their ability to recreate complex structures with high resolution, mechanical stability, and suitable printing conditions for cell encapsulation. These technologies offer better understanding of tumor microenvironment and platforms for drug screening in cancer research.
Article
Polymer Science
Deepak Patil, Vibhanshu Golia, Maya Overland, Marshall Stoller, Kaushik Chatterjee
Summary: This study demonstrates the fabrication of cicada wing-inspired nanotopography on nitrile surfaces using reactive ion etching. The etched surfaces effectively minimized bacterial colonization by inducing membrane damage.
Review
Materials Science, Biomaterials
Akshat Joshi, Saswat Choudhury, Sonal Asthana, Shervanthi Homer-Vanniasinkam, Uma Nambiar, Kaushik Chatterjee
Summary: The latest advancements in 4D fabrication techniques have proved beneficial in creating customized and self-fitting structures that can improve the treatment of nerve injuries. These techniques offer the potential for dynamic implants that can overcome the drawbacks of traditional approaches and improve patient outcomes.
BIOMATERIALS SCIENCE
(2023)
Article
Materials Science, Biomaterials
Sumit Ghosh, Sushma Indrakumar, Santanu Ghosh, Vasanth Gopal, Sagar Nilawar, Geetha Manivasagam, Jayanth S. Kesave, Satyam Suwas, Kaushik Chatterjee
Summary: This study investigates the effects of surface mechanical attrition treatment (SMAT) on 316L stainless steel implants fabricated by selective laser melting (SLM). The results show that SMAT can improve the corrosion resistance, wear resistance, and biological performance of the implants in in vitro and in vivo environments.
JOURNAL OF MATERIALS CHEMISTRY B
(2023)
