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Open Access Article
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سید مرتضی نقیب -
Open Access Article
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Ghazaleh Alamdarnejad -
Open Access Article
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Fatemeh Rafiemanzelat gholamali koohmare -
Open Access Article
4 - Application of Bio-nanocomposites in Food Packaging
Fatemeh Savojbolaghi Mahshid MaroufkhaniThe need for food packaging to maintain quality and shelf life is increasing day by day. Nanostructured materials are preferred over microstructures due to their unique physical and chemical properties and improved performance. Advanced packaging based on nanotechnology MoreThe need for food packaging to maintain quality and shelf life is increasing day by day. Nanostructured materials are preferred over microstructures due to their unique physical and chemical properties and improved performance. Advanced packaging based on nanotechnology has made it possible to preserve and transport food safely without changing the taste and quality. In addition, it prevents contamination and preserves the mechanical, physiological, physical and chemical properties of food. Various nanomaterials have been used in food packaging to prepare improved, active, smart and bio-based packaging. Smart packaging ensures food safety by detecting contamination, gases, humidity, temperature and other food parameters using sensors. With the increasing demand for the production of new, environmentally friendly and high-performance packaging, "bio-nanocomposites" have attracted a lot of attention in recent years. Bio-nanocomposites are bio-based polymers that consist of two main components, one acting as a matrix called biopolymer (continuous phase) and the second as a reinforcing agent (dispersed phase) with dimensions ranging from 1 to 100 nm. . Bio-based packaging is a new and new generation packaging that replaces natural polymers with synthetic plastics. In this article, recent research in the field of bio-nanocomposites has been reviewed based on the application for different needs and the possible risk of nanoparticle migration. Manuscript profile -
Open Access Article
5 - A Review of Hydrogels Containing Fibers in Drug Delivery Systems
Mohammad Hossein Karami Majid Abdouss Mohammadreza Kalaee Omid MoradiHydrogels are three-dimensional networks of hydrophilic polymers capable of absorbing and retaining significant amounts of fluids, which are also widely applied in wound healing, cartilage tissue engineering, bone tissue engineering, release of proteins, growth factors, MoreHydrogels are three-dimensional networks of hydrophilic polymers capable of absorbing and retaining significant amounts of fluids, which are also widely applied in wound healing, cartilage tissue engineering, bone tissue engineering, release of proteins, growth factors, and antibiotics. In the past decades, a lot of research has been done to accelerate wound healing. Hydrogel-based scaffolds have been a recurring solution in both cases, although their mechanical stability remains a challenge, some of which have already reached the market. To overcome this limitation, the reinforcement of hydrogels with fibers has been investigated. The structural similarity of hydrogel fiber composites to natural tissues has been a driving force for the optimization and exploration of these systems in biomedicine. Indeed, the combination of hydrogel formation techniques and fiber spinning methods has been very important in the development of scaffold systems with improved mechanical strength and medicinal properties. Hydrogel has the ability to absorb secretions and maintain moisture balance in the wound. In turn, the fibers follow the structure of the extracellular matrix (ECM). The combination of these two structures (fiber and hydrogel ) in a scaffold is expected to facilitate healing by creating a suitable environment by identifying and connecting cells with the moist and breathing space required for healthy tissue formation. Modifying the surface of fibers by physical and chemical methods improves the performance of hydrogel composites containing Manuscript profile -
Open Access Article
6 - A Review on the Mechanical Properties of Carbon Nanotubes Reinforced Polymer Composites
Ahdieh Amjadi Fereshteh Barragh JamAdvances in the synthesis and industrial production of carbon nanomaterials, particularly carbon nanotubes (CNTs) have been widely used in the polymer materials industry in the past few decades, leading to the creation of a group of carbon nanotube-reinforced polymer co MoreAdvances in the synthesis and industrial production of carbon nanomaterials, particularly carbon nanotubes (CNTs) have been widely used in the polymer materials industry in the past few decades, leading to the creation of a group of carbon nanotube-reinforced polymer composites that exhibit the potential to be used in several applications, such as military, transportation, aerospace, automotive, and sports equipment. The advantageous thermal, electrical, and mechanical properties of CNTs, in conjunction with their low density, which encourages researchers to use them in making polymer composites. Polymeric composites have been welcomed by many researchers and industrialists due to their special properties including low weight, favorable mechanical properties and diverse production processes compared to other types of composites and other engineering materials. On the other hand, CNTs are unique as mechanical reinforcement components for structural applications due to their nanometer dimensions and extraordinary strength. Therefore, in this review study, an attempt has been made to examine the researches carried out in the field of mechanical properties of polymer composites reinforced with CNT. The implications of several factors affecting mechanical properties of CNT reinforced polymer composites such as amount, shape, and contact area of the reinforcing agents with the polymer matrix, have been highlighted. Manuscript profile
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