Nanowires ( SiNWs) have high mobility and surface-to-volume ratio, which makes them easy to control using a weak electric field. These one-dimensional nanostructures are created from nanowires with a diameter in the range of nanometers and a length of more than a micrometer. It has been done in the manufacture of nanowires through regular one-dimensional arrays with the help of different physical and chemical methods. Methods such as the use of electron beam or lithography method, heavy ion (...) irradiation, laser, chemical and electrochemical methods such as water heat and spontaneous assembly methods used to make the membranes of molds can also be used . In making one-dimensional nanostructures such as Oligophenylene vanillin nanowires The electro-accumulation method consists of three general steps: firstly, the creation of a porous template as a suitable substrate and framework for the accumulation of nanowires, secondly, the growth of nanowires along the cavities of the template, and thirdly, removing the template and separating the nanowires from it. The nanowires are directly dependent on the characteristics of the mold surface such as the size distribution of the holes, the density of the holes and the superiority of the surface of the nano-holes. In order to control the properties of Oligophenylene vanillin nanowires, parameters that are effective in the formation and optimization of the diameter of the holes and the thickness of the mold should be considered. (shrink)

Nowadays, many semiconductors such as silicon are used in a wide range of nanoelectronic devices. However, due to the range of thermal changes and its extremely high speed, nano diamond is only compared to gold nanoparticles, which is the second best nano semiconductor in the world. Nano graphite and graphene nano strips are electrically conductive due to cloud scattering. Active nano diamond particles with such features, especially electronic ones, can be the foundation of completely new types of powerful nano electronic (...) devices. (shrink)

Note: Nanoelectronics technology has dedicated some very exciting materials to improve the sensing phenomenon. The use of various nanomaterials, including nanoparticles, nanotubes, nanotubes, and nanowires, causes faster identification and reproducibility in a much better way. The unique properties of nanomaterials such as high electrical conductivity, better shock tolerance, and sensitive responses such as versatile piezo-electric and color detection mechanisms are only results of the multitude of properties of nanomaterials. Different types of biosensors are propagated based on different types of (...) nano materials and their developmental and implicit aspects. Measurement of biological responses has assumed great importance in the current scenario of ever-dynamic environmental developments and altered hemostatic events occurring at the in vivo as well as intracorporeal level. Analyzing the behavior of changing materials is of great importance in areas such as pharmaceutical diagnostics, food quality screening, and environmental applications. (shrink)

The use of AFM for scanning probe lithography also suffers from power-related problems, but it is better suited than STM for this task due to the less stringent requirements of the technique: no very high vacuum conditions. , conductive surface or very good tip-to-sample distance control is required. Scanning probe nanolithography based on AFM can be performed through different mechanisms and offers a wide range of possibilities . Therefore, the AFM tip can produce localized changes in the composition, height, or (...) physical/chemical properties of surfaces through thermal effects, mechanical effects, deposition, chemical effects, etc. The principle of this technique for making electronic nano devices has been drawn and the example of making Si nanowires based on the oxidation of nanolithography probe Scanning is done. A derived technique that has become very popular is dip-pen nanolithography, in which the tip deposits specific inks with excellent clarity at desired locations. -/- . (shrink)

based on organic materials can be mechanically exible to a large extent because of the loose intermolecular bonds in the nano-electrons created from them. Unlike these organic materials, minerals such as silicon, germanium, and gallium arsenide can be used in the structure of electronic devices only in crystalline states, and in this case, covalent bonds make exibility impossible in them. Makes. Properties such as strength, exibility, electrical conductivity, magnetic properties, color, reactivity, etc. Starting to change the properties of the material (...) by shrinking it depends more than anything on the type of material and the desired property. For example, by reducing the dimensions of a material, generally some mechanical properties of the material such as strength are improved. This increase in strength does not happen only in the range of a few nanometers, and the strength of materials of several tens and even hundreds of nanometers may be much higher than the large-scale mass material. On the other hand, the change of some properties such as color and magnetic properties may occur in dimensions of only a few nanometers. (shrink)

Note: In general, in order to receive the electromagnetic wave in the space, the dimensions of the antenna must be in the order of the wavelength of the input to its surface. Due to the very small dimensions of nano sensors, nano antennas need to have a very high working frequency to be usable. -/- The use of graphene helps to solve this problem to a great extent. The speed of propagation of waves in CNTs and GNRs can be 100 (...) times lower than its speed in vacuum, and this is related to the physical structure, temperature and energy. Based on this, the resonance frequency of graphene-based nano-antennas can be two orders of magnitude lower than nano-antennas based on nano-carbon materials. It has been mathematically and theoretically proven that a quasi-metallic carbon nanotube can emit terahertz radiation when a time-varying voltage is applied to its sides. One of the most important parameters of any nano antenna is the current distribution on it. This characteristic determines the radiation pattern, radiation resistance and reactance and many important characteristics of the antenna. Despite the possibilities of making nanotubes with a length of several centimeters, it is possible to make electrical conductors with a length-to-width ratio of the order of 10^7. has it. At first glance, nanotube antennas give us the impression that they are similar to Dipole antennas designed in small dimensions. (shrink)

Signal measurement Electrochemical methods are very suitable for detecting direct DNA oxidation because electrochemical reactions directly generate electronic signals and therefore do not require expensive converters. In addition, in this process, because the order of the immobilized game can be limited to onlya series of electrode substrates, the act of tracking is performed by a series of in expensive electrochemical analyzes. Electrochemical sensors are used to perform clinical or environmental tests; The basis of the sensitivity of electrochemical signals to direct (...) oxidation orinterval catalysis of DNA is also based on the reduction reactions of reporter molecules or enzymes. (shrink)