Current Nanoscience - Volume 15, Issue 5, 2019

Background: The high molecular weight and increasing lipophilicity drug face many problems starting from the drug development to formulation and conduction of pharmacological, toxicological and pharmacokinetic studies to its biological application. To overcome this problem, a different formulation of nano-sized drugs was developed recently. The use of Solid lipid nanoparticles (SLNs) and Nanostructured lipid carriers (NL Read More

Background: Carbon nanotubes (CNTs) are allotropes of carbon with a cylindrical nanostructure. Thanks to their electrical, mechanical and optical properties, they have been widely used for different pharmaceutical, biological and biomedical applications. To understand the biofate of the CNTs in the body, their pharmacokinetic properties should be revealed appropriately. Objective: To review the available literature, regarding t Read More

The excessive use of nitrogen and phosphorous fertilizers led to environmental pollution and serious health issues. Nanotechnology may solve such a type of problems by providing nanomaterials of high performance. Here, we reviewed the beneficial effects of some different nanoparticles on the growth of different parts of different plants belonging to 14 different families. Nanoparticles such as CNT, Ag-NPs, TiO2-NPs, Au-NPs, Read More

In this paper, we review a procedure to study the effects of temperature in the design of A/D circuits based on CNTFETs. At first, we briefly describe a compact model, already proposed by us, in which the temperature variation in the drain current equation and in energy band gap is considered. Then, the effects of temperature variations in the design of analog circuits, such as a cascode current sink mirror and an Operational Tr Read More

Background: The nanomechanical properties of Zr50Cu50 metallic glass under tension are studied. The effects of temperature and alloy composition are investigated in terms of atomic trajectories, slip vectors, stress-strain curve, and radial distribution function. Methods: The molecular dynamics simulations based on the many-body tight-binding potential are applied to analyze the nanomechanical properties o Read More

Background: The electrical and optical properties of nanoparticle-based devices depend on the shape, dimension and uniformity of these particles. Methods: In this work, we fabricated ordered Au nanodots using electron beam lithography and thermal evaporation. Au nanodot diameter and circularity varied with a changed exposure dose and resist thickness. Electron beam dose ranged from 5 fC to 200 fC for single dot patte Read More

Background: Formaldehyde belongs to important pollutant and is usually found in liquid environment, such as juices, beer, cleaning products and biological fluid of the human. The electrochemical sensors using glassy carbon electrode (GCE) modified with polyaniline/Zn bismuthate nanocomposites can effectively detect formaldehyde with broad linear range and good reproducibility. Methods: Polyaniline/Zn bismutha Read More

Background: Energy crisis is a vital issue worldwide and it will be increased tremendously in future. Alternative energy sources have been sought for the betterment of the future world. Solar energy is an alternative energy resource with plenty of opportunities. To make user- friendly and cheaper solar cells, dye-sensitized solar cells are tried to develop in this aspect. Objective: Single dye is not good enough to capture a wi Read More

Background: Non-precious metal based catalysts have become a hot research material due to their easy availability, low cost and outstanding electrochemical performance. Among them, carbon-based materials like carbon nanotubes and porous carbon with their own characteristics are especially favored by researchers in the field of catalyzing oxygen reduction. Therefore, rational construction of combining porous carb Read More

Background: Nanoclays incorporated in dental resins have been previously investigated. However, limited reports are associated with nanoclays that exhibit high functionality. Objective: The aim of this study was the targeted synthesis and characterization of organomodified nanoclays with methacrylic groups suitable for incorporation in dental nanocomposite resins. Methods: Quaternary ammonium methacrylates were syn Read More

Background: Flower-shaped micro/nanostructures containing adsorbent and antimicrobial agent within the same particle are a new generation of materials with considerable potential in the field of biomedicine. Objective: Flower-shaped micro/nanostructures were fabricated by the reaction of Al/Cu, Al/Fe and Al/Zn bimetallic nanoparticles with water. Al/Cu, Al/Fe and Al/Zn nanoparticles were produced by the simultaneous electri Read More

Background: Immunotherapy involving dendritic cells (DC) has been used to treat cancer with satisfactory results. The generation of mature dendritic cells derived from monocytes, however, is expensive because of the use of cytokines. Objective: To reduce DC therapy costs, it is important to evaluate lower-cost materials capable of inducing dendritic cell maturation; for this purpose, we synthetized chitosan nano Read More

Background: In AFM study of cell mechanical properties, the apparent elastic modulus of a cell is affected by many factors, especially the AFM tip geometry, indentation site of the cell, the application of the mathematical model and testing conditions. Methods: In this study, indentation experiments of living cells under different conditions were performed aiming to build an accurate evaluation system of mechanical prop Read More