Nanoparticles For Drug Delivery: Silicon Nanoparticles!

Drug delivery technology has received considerable attention in the past few years in the field of biomedical nanotechnology. Drug delivery implies that the approaches, technologies, process and systems for transporting a pharmaceutical compound in the body as needed. Drug delivery system is related with the quality, quantity and duration of drug presence. It is also concerned with scientific site of pharmaceutical compounds within the body. That means proper drug delivery system must transport pharmaceutical compounds with proper quantity into the accurate sites of the body. Drug delivery is often approached via a drug's chemical formulation, but it may also involve medical devices or drug-device combination products.

Silicon (Si) is a biomaterial, one of the most frequent elements in the earth’s crust.A range of methods can be applied for the fabrication of porous Si, such as chemical stain etching, chemical vapor etching, laser-induced etching, metal-assisted etching, spark processing and reactive ion (plasma) etching. Porous Silicon nanoparticles can be seen as one of the attractive materials for controlled drug delivery applications. Porous Silicon nanoparticles have been established as excellent candidates for medical applications as drug delivery devices, due to their excellent biocompatibility, biodegradability, and high surface area. Also there are some other several important properties of porous silicon nanoparticles such as controllable pore sizes and volumes, optical properties, usage as a template for organic and biopolymers.

It is possible to make some modifications on porous Si surfaces that can be used to control the amount, identity and in vivo release rate of drug payloads. Furthermore, there are some well-established methods of fabrication for possible users which can be customized to control the pore size, chemical modification of silicon surfaces and the characterization and pore morphology of silicon structures.

Porous Silicon nanoparticles can be used in not only drug delivery, but also microfluidics, microarray biosensors and high-resolution imaging techniques that can provide detailed images of cancerous cells and lesions, thus these nanoparticles are creating systems with incredible synergetic capabilities for therapeutic and diagnosis applications.

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Carbon Nanotube Threads

Since its discovery, carbon nanotube (CNT) has attracted many interests in different technology fields due to its extraordinary properties. Properties such as, high strength, great electrical and thermal conductivity, light weight and flexibility made CNT one of the best materials for wide range of applications. However, from its name it can be understood that CNT is a nanoscale material which is very small to be applied for the production of daily products. Researchers all around the world are working on finding methods and techniques which could produce new materials with the extraordinary properties of CNT. Image retrieved from: https://worldindustrialreporter.com/strong-light-flexible-carbon-nanotubes-threads-with-ultrahigh-conductivity/ One of these research is focusing on the production of high strength threads that can be used in the manufacturing of fabrics, cables and ropes. An international group of scientists were able to produce a flexible conductive thread th...

Multi Walled Carbon Nanotube Dispersions

Carbon nanotubes (CNTs) have attracted enormous attention in recent years due to its unique physical, electronic, optical and potential applications in materials science and nanotechnology. The van der Waals interaction between tubes, however, makes CNTs aggregate in most organic solvents and aqueous solutions, which is the major limitation of their practical applications.Various approaches have been studied to alter the CNT surface to promote the dispersion of individual nanotubes and prevent their reaggregation. On the basis of this widely accepted viewpoint, numerous techniques such as covalent bonding, surfactant coating and polymer wrapping have been developed for surface modification or sidewall functionalization.These methods, however, are complicated, time-consuming and cause permanent damage to the CNT structure and properties of the surface, which produces residues of the dispersion agent for the final product. Figure: Single Walled Carbon Nanotube (SWCNT) It ha...

Magnesium Oxide Nanoparticles/Nanopowder and Applications

General Information about Magnesium Oxide Magnesium oxide which has the chemical formula of MgO, is a white hygroscopic solid mineral that occurs naturally as periclase and is a source of Magnesium. It is a white powder at room temperature. Magnesium Oxide has very high melting point (2825 o C) and boiling point (3600 o C). Magnesium Oxide Nanoparticles/Nanopowder an...

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