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Topic Review
Covalent Organic Frameworks
Covalent organic frameworks (COFs) are emerging crystalline polymeric materials with highly ordered intrinsic and uniform pores.
  • 958
  • 19 May 2021
Topic Review
Mesoporous Silica Nanoparticles
Mesoporous silica nanoparticles (MSNs) have been widely employed as drug carriers owing to their exquisite physico-chemical properties. Mesoporous material Solid and porous material, with natural or synthetic character, with an average pore size between microporous (less than 2 nm) and macroporous (more than 50 nm). The pore structure can be ordered or not and provides an extremely high surface area in a relatively small amount of material According to IUPAC notation, the mesoporous category is midway between the pore sizes that define microporous materials, up to 2 nm, and macroporous, pore diameters greater than 50 nm. They have a large number of applications in the fields of catalysis, molecular separation, drug release or chemical sensors among others, as a result of the network of porous cavities in their internal structure. - Examples: ordered mesoporous silica materials, carbon molecular sieves, porous organic / inorganic hybrid materials and porous metal oxides.
  • 958
  • 13 Jan 2021
Topic Review
C-,N- and S-Doped TiO2 Photocatalysts
This entry describes the basics of photocatalysis. It also presents properties and applications of C-,N- and S-Doped TiO2 as a photocatalyst.
  • 958
  • 28 May 2021
Topic Review
Pulsed Laser Ablation in Liquids
Laser synthesis emerges as a suitable technique to produce ligand-free nanoparticles, alloys and functionalized nanomaterials for catalysis, imaging, biomedicine, energy and environmental applications. In the last decade, laser ablation and nanoparticle generation in liquids has proven to be a unique and efficient technique to generate, excite, fragment and conjugate a large variety of nanostructures in a scalable and clean way. 
  • 958
  • 19 Feb 2021
Topic Review
Dietary Plant Polyphenols
Dietary plant polyphenols are natural bioactive compounds that are increasingly attracting the attention of food scientists and nutritionists because of their nutraceutical properties. 
  • 956
  • 09 Jun 2021
Topic Review
Packaging Materials
The entry packaging materials is intended to summarize the recent progress in the work of fractal theory in packaging material to provide important insights into applied research on fractal in packaging materials. The fractal analysis methods employed for inorganic materials such as metal alloys and ceramics, polymers, and their composites are reviewed from the aspects of fractal feature extraction and fractal dimension calculation methods. Through the fractal dimension of packaging materials and the fractal in their preparation process, the relationship between the fractal characteristic parameters and the properties of packaging materials is discussed. The fractal analysis method can qualitatively and quantitatively characterize the fractal characteristics, microstructure, and properties of a large number of various types of packaging materials. 
  • 956
  • 06 Apr 2021
Topic Review
Heat Dissipation Model of TIMs in High-Power Electronics
To improve the heat dissipation capability of high-power electronic systems, advanced thermal interface materials (TIMs) with high thermal conductivity and low interfacial thermal resistance are urgently needed in the structural design of advanced electronics. Metal-, carbon- and polymer-based TIMs can reach high thermal conductivity and are promising for heat dissipation in high-power electronics. 
  • 955
  • 31 Oct 2022
Topic Review
Boron Chemicals
Boron-based bioactive compounds have provided amphiphilic properties to facilitate interaction with protein targets. Indeed, the spectrum of boron-based entities as drug candidates against many diseases has grown tremendously since the first clinically tested boron-based drug, Velcade. 
  • 954
  • 27 Apr 2022
Topic Review
Degradation and Life Prediction of Polyethylene
Polyethylene is one of the most significant and useful polymers that has been extensively studied for use as a plastic material. The benefits of using polyethylene as a commercial plastic material include its excellent mechanical properties, good flexibility, good chemical resistance, lightweight properties, good thermal stability, and high-cost performance. The piping sector has been impacted by the trend of replacing steel with plastic during the past, resulting in the steady replacement of metal-based pipes with plastic pipes. Polyethylene pipes are the most commonly utilized among them. Consider the case of high-density polyethylene pipes. Its market worth was USD 15.975 billion in 2018, and 9.283 million tons were consumed each year. The service life of polyethylene pipes will not be less than 50 years, and it will continue to grow at a rate of at least 5% annually in the upcoming years.
  • 953
  • 10 Mar 2023
Topic Review
Multi-Material 3D Printing of Functional Ceramic Devices
As an emerging technology, multi-material 3D printing offers increased complexity and greater freedom in the design of functional ceramic devices because of its unique ability to directly construct arbitrary 3D parts that incorporate multiple material constituents without an intricate process or expensive tools.
  • 953
  • 17 Nov 2022
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