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Topic Review
Natural Biopolymers
Natural biopolymers are an interesting resource for edible films production, as they are environmentally friendly packaging materials.
  • 6.0K
  • 23 Jun 2021
Topic Review
Natural Fibre-Reinforced Polymer Composites
As one of the fastest-growing additive manufacturing (AM) technologies, fused deposition modelling (FDM) shows great potential in printing natural fibre-reinforced composites (NFRC). However, several challenges, such as low mechanical properties and difficulty in printing, need to be overcome. Therefore, the effort to improve the NFRC for use in AM has been accelerating in recent years.
  • 1.1K
  • 23 Jul 2021
Topic Review
Natural Leaf Fiber
The use of natural fibres has rapidly increased due to their high availability, low density, and renewable capability over synthetic fibre. Natural leaf fibres are easy to extract from the plant (retting process is easy), which offers high stiffness, less energy consumption, less health risk, environment friendly, and better insulation property than the synthetic fibre-based composite. Natural leaf fibre composites have low machining wear with low cost and excellent performance in engineering applications, and hence established as superior reinforcing materials compared to other plant fibres. 
  • 2.0K
  • 26 Apr 2021
Topic Review
Natural Polymer-Based Hydrogels for Glaucoma Therapy
Biopolymers have been extensively investigated in a number of medical fields, including tissue engineering and drug delivery. This is largely due to the fact that they are biodegradable within the body, and do not induce an inflammatory reaction. Polynucleotides such as nucleic acids (DNA and RNA), proteins such as polypeptides, and polyesters derived from both plants and animals are also used. When compared to synthetic polymers, naturally occurring biopolymers and their derivatives have acquired preference, and have a comprehensive range of applications in pharmaceutical as well as biomedical research. Natural biopolymers are preferred for medical applications due to their biodegradability, biostability, biocompatibility, and non-toxicity. Additionally, natural polymers have the advantage of being readily available, economically friendly, and ecofriendly. Hydrogels designed from natural polymers exhibit high potential as drug delivery systems for biomaterials to treat ocular impairments.
  • 479
  • 28 Jun 2022
Topic Review
Natural Polymeric Composites Derived from Animals
The special property of polymeric-based systems is that they serve as adjuvants, may trigger an antigen-mediated immune response, and also substantially deliver the antigen or vaccine to the desired anatomical or physiological location. Moreover, the benefit of polymeric-based delivery methods is that they may be made using natural polymers, which reduces the risk of tissue cytotoxicity.
  • 237
  • 23 Mar 2023
Topic Review
Natural-Drugs-Based Low-Molecular-Weight Supramolecular Gels
The utilization of paclitaxel, camptothecin, rhein, curcumin, and other natural small molecular drugs with unique rigid backbone structures and modifiable multiple sites as building blocks to form gels by self-assembly has attracted widespread attention. The obtained low-molecular-weight supramolecular gel not only retains the general characteristics of the gel but also overcomes the shortcomings of natural drugs, such as poor water solubility and low bioavailability.
  • 1.0K
  • 12 Aug 2021
Topic Review
NIAS in Plastic Food Packaging
Several food contact materials (FCMs) contain non-intentionally added substances (NIAS), and most of the substances that migrate from plastic food packaging are unknown. Food packaging can contain NIAS as a result of the interactions between different substances in the packaging materials, between food content and substances (for example, additives) in FCM, from degradation processes and mainly from the impurities present in the raw materials used for FCM production. (EU) nº 10/2011 defines that “non-intentionally added substance means an impurity in the substances used or a reaction intermediate formed during the production process or a decomposition or reaction product”. Most NIAS are regularly detected when using high sensitivity analytical techniques, although the chemical structure of unknown compounds is often difficult to establish by conventional tools.
  • 2.1K
  • 01 Jul 2021
Topic Review
Nitric Oxide for Dermal Application
Nitric oxide (NO•) is a free radical gas, produced in the human body to regulate physiological processes, including skin health. The lack of NO• is known to cause or worsen skin conditions, so an exogenous delivery through NO-donors can compensate its deficiency. This has been incorporated into natural, synthetic and semisynthetic polymeric matrices that have been evaluated for antimicrobial, wound healing and circulatory dermal applications.
  • 594
  • 25 Apr 2021
Topic Review
Non-collagenous proteins in bone ECM
Engineering biomaterials that mimic the extracellular matrix (ECM) of bone is of significant importance since most of the outstanding properties of the bone are due to matrix constitution. Bone ECM is composed of a mineral part comprising hydroxyapatite and of an organic part of primarily collagen with the rest consisting on non-collagenous proteins. 
  • 1.2K
  • 14 Apr 2021
Topic Review
Non-Covalent Interactions of Intrinsic Self-Healing Elastomers
Self-healing elastomers refer to a class of synthetic polymers that possess the unique ability to autonomously repair from internal and external damages. In recent years, significant progress has been made in the field of self-healing elastomers. In particular, intrinsic self-healing elastomers have garnered a great deal of attention. 
  • 242
  • 18 Dec 2023
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