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Topic Review
Biography
Topic Review
3D Printing of ECHs
Electrically conductive hydrogels (ECHs), an emerging class of biomaterials, have garnered tremendous attention due to their potential for a wide variety of biomedical applications, from tissue-engineered scaffolds to smart bioelectronics. Along with the development of new hydrogel systems, 3D printing of such ECHs is one of the most advanced approaches towards rapid fabrication of future biomedical implants and devices with versatile designs and tuneable functionalities.
779
06 May 2021
Topic Review
Polymeric Emissive Materials Based on Dynamic Covalent Bonds
Dynamic covalent polymers, composed of dynamic covalent bonds (DCBs), have received increasing attention due to their adaptive and reversible nature compared with common covalent linked polymers. Incorporating the DCBs into the polymeric material endows it with advanced performance including self-healing, shape memory property, and so forth.
778
25 Nov 2022
Topic Review
Tire Rubber and Its Degradation Behavior
The use of ground tire rubber (GTR) for modifying asphalt is very promising and is a sustainable development strategy. The addition of GTR to asphalt shows many improvements in the physical, chemical and mechanical properties of the rubber asphalt binder, such as enhanced stiffness, increased skid resistance, extended service life, mitigated fatigue cracking and so on.
777
01 Nov 2022
Topic Review
Rechargeable Lithium Battery
Electrochemical behaviors, advantages, and disadvantages of existing electrospun nanofiber anode materials were thoroughly reviewed by classifying into four groups according to the lithium storage principles.
775
17 Sep 2020
Topic Review
MIPs Preparation by Computational Simulation–Aided
Molecularly imprinted polymers (MIP) are obtained by initiating the polymerization of functional monomers surrounding the template molecule in the presence of crosslinkers and porogens. Usually the best adsorption performance can be obtained by optimizing the polymerization conditions, but the process is time-consuming and labor-intensive. At the same time, the use of a large number of organic reagents in the process of experimental optimization also limits the development and promotion of molecular imprinting technology. Theoretical calculation based on calculation simulation and intermolecular force is an effective method to solve this problem because it is convenient, versatile, environmentally friendly and low in price. It is not affected by the space environment, and the calculation efficiency is high.
775
27 Aug 2021
Topic Review
Filled Polymers and DMA
Dynamic mechanical analysis (DMA) provides reliable information about the viscoelastic behavior of neat and filled polymers. The properties of filled polymers are relevant to different industries as protective organic coatings, composites etc. Interfacial interactions in filled polymers play an important role in determining their bulk properties and performance during service life. In this entry, studies which used DMA to characterize the interfacial interactions in filled polymers have been reviewed.
772
26 Apr 2021
Topic Review
Zinc Oxide Doped with Transition Metal Ions
As an excellent semiconductor photocatalyst, zinc oxide is widely used in the field of photocatalysis and is regarded as one of the most reliable materials to solve environmental problems. However, because its band gap energy limits the absorption of visible light and reduces the efficiency of catalytic degradation, it needs to be doped with other substances or compounded with other substances and precious metal.
766
11 Nov 2022
Topic Review
Modification of Glucomannan as an Excipient
Glucomannan (GM) is a polysaccharide generally extracted from the tuber of Amorphophallus konjac. It consists of mannose and glucose residues linked by β-(1-4) and exhibits hydrocolloid characteristics which can be applied as thickening and gelling agents. However, it has poor water resistance and low mechanical strength when used as an excipient in solid form. Several physical and chemical modifications have been carried out to improve these drawbacks. Chemical modification involves the substitution of functional groups in GM’s structure including esterification and etherification. It causes a decrease in its high hydrophilic film behavior and produce water-resistant films. Physical modification involves mixing native GM with other excipients through processes involving milling, moisture, temperature, pressure, radiation, etc. It causes variations to particle size, shape, surface properties, porosity, density, and to functional properties such as swelling capacity and gelation ability
764
26 Jul 2022
Topic Review
Poly(Ionic Liquid) Materials-Based Advanced Formulations for Additive Manufacturing
Innovation in materials specially formulated for additive manufacturing is of great interest and can generate new opportunities for designing cost-effective smart materials for next-generation devices and engineering applications. Nevertheless, advanced molecular and nanostructured systems are frequently not possible to integrate into 3D printable materials, thus limiting their technological transferability. In some cases, this challenge can be overcome using polymeric macromolecules of ionic nature, such as polymeric ionic liquids (PILs). Due to their tuneability, wide variety in molecular composition, and macromolecular architecture, they show a remarkable ability to stabilize molecular and nanostructured materials. The technology resulting from 3D-printable PIL-based formulations represents an untapped array of potential applications, including optoelectronic, antimicrobial, catalysis, photoactive, conductive, and redox applications.
764
08 Dec 2022
Topic Review
Interaction-Induced Structural Transformations in Polysaccharide and Protein-Polysaccharide Gels
Polysaccharides are biocompatible nontoxic natural polymer compounds. They are widely used as functional soft-matter for exploration in the food industry, drug delivery, regenerative medicine, and other biomedical research and applications. The tunable macroscopic properties of gels should meet case-dependent requirements. The admixture of proteins to polysaccharides and their coupling in more sophisticated structures opens an avenue for gel property tuning via physical cross-linking of components and the modification of gel network structure.
763
24 May 2022
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