Note: NI_nanoparticle nickel nanoparticles is a strong conductor of electric current and its surface is shiny and polished. This element belongs to the group of iron and cobalt elementsUsing particles from the microscale to the nanoscale provides benefits for various scientific fields, but because a large percentage of their atoms is on the surface, nanomaterials can be highly reactive and pose risks. have a potential for humans. Nanoparticles are of great interest due to their wide application, both in (...) industry and in the natural sciences. While natural materials have constant physical properties regardless of size, the size of a nanoparticle determines its physical and chemical properties. Therefore, the properties of a material change as its size approaches the nanoscale and the percentage of atoms on the surface of the material becomes significant. The important feature of all nano structures is that in which the number of surface atoms is more than the number of volume atoms. This ratio increases with decreasing nanoparticle size. Therefore, the size of the nanoparticle is considered its most important feature. The range of activity of nanoparticles depends on the nature and shape of the nanostructure. However, if the energy of the nanoparticle field is comparable to the energy of electromagnetic radiation and if in a certain range a wavelength with the occurrence of chemical reactions in materials Under irradiation, significant changes will be made in the activity of nanoparticles up to 100 nm in size. is the nanometer expected to be used for storage. Given the relatively large (physically speaking) storage devices we have now and the fact that we need gigabyte sizes in various areas, there is a high potential for activity in this There is a context. Each quantum dot consists of a discrete ball of several hundred atoms that can have one of two magnetic states. This allows them to contain a single bit of information (zero or one), as is customary in machine computing. In conventional hard disks, the data bits must be spaced far enough apart that they do not overlap. Quantum dots act as completely independent units that are not structurally connected, so they can become somewhat closer to each other. One of the new information storage tools is the use of nickel quantum dots in nanometer sizes, which are expected to be used to store terabytes of data. (shrink)

Production of nano supercapacitors using nanoparticles that can be polarized so that electrical energy can be stored. Nanostructure multilayer technology (solid state) is a known dielectric material used in nano supercapacitors because it is a piezoelectric and ferroelectric material. In this work, by creating passive filters, they provide storage between different types of these electric nano layers. The degree of electrical properties in solid materials (nanosupercapacitors) is very diverse. Based on the amount of resistance (nano supercapacitors) against the passage (...) of electric current, different materials can be divided into categories classified as conductor, semiconductor, and insulator. Meanwhile, in superconductors, there is a different mechanism to guide electrons. (Nano supercapacitors) can be defined as the number of free electrons that move freely in the material under the influence of an external electric field, as well as mobility, which is a measure of the ability and speed of free electrons to move, attributed. (shrink)

In the immersion method, nanowires have enough time to transfer from nanoparticle particles to cavities ; The formation step of uniform nanoparticles is done slowly and finally uniform nanowires are formed. Structural study with FESEM in the immersion method of single-stranded nanowires in all porosities and in a large area of nanowire particles are formed. Changing the Sr / Fe ratio does not change the morphology of the nanowires. And spectroscopy of nanowires with a ratio of Sr / Fe (...) states within the nano-particles inside (nanowires uniform) elements Fe and Sr of ferrite strontium in spectroscopy nanowires uniform is seen in the sample of nanoparticles Sr / Fe to value Its stoichiometry is closer to that of nanoparticles in electromagnetic composition, while due to the lower solubility of uniform strontium nanowire nanomolecules compared to iron nitrate and the consequent presence of less strontium ions in reaction with electromagnetic nanoparticles. There is more Fe ion in the final structure. Electro-magnetically active particles are used to separate uniform nanowires at ambient temperature . In the application of nanowires in nanoscale electronics or some other applications, it is necessary to separate the nanowires from alumina particles . (shrink)

Nanowires are less than 100 nm in diameter and can be as small as 3 nm. Typically, nanowires are more than 1000 times larger than their diameter. This huge difference in length-to-diameter ratio compared to nanowires is often referred to as 1D materials. This leads to unique properties not seen in bulk materials, The minute size of nanowires means that the quantum mechanical effects of are of great importance. "Quantum Wires" They use quantum mechanics to produce wires with a wide (...) range of unique electrical properties. These features include quantum tunneling, which allows wires made of carbon nanotubes to conduct very high with electrons passing through the wire in a ballistic manner. > In the immersion method, nanowires have enough time to transfer from the particles of nanowires to the holes ; The step of forming uniform nanoparticles is done slowly and finally uniform nanowires are formed. (shrink)

To solve this problem , they usually use an intermediate layer of retarding materials such as Ta, w or Mo as a penetration barrier to improve the thermal stability of the Si/Cu layer . In the characterization of Si/Ta/Cu nanoparticles and multilayer systems, there is an effect of negative bias voltage on the improvement of the electrical and structural properties of the permeation barrier of the Ta sputtering layer in the Si/Ta system. Surface processes of the Si layer, including (...) burning, are carried out by plasma and ion beam technology. This kind of integrated circuits with their unique characteristics in the nanometer scale have various applications of mesoscopic systems. (shrink)

Graphene nanomemories have been developed molecularly, providing excellent programmable nanoscale memory performance compared to previous graphene memory devices and a memory window. Large (12V), fast switching speed (1 microsecond), shows strong electrical reliability. Graphene molecular nanomemories show unique electronic properties, and their small dimensions, structural strength, and high performance make them a charge storage medium for Nano memory applications. We use a set of techniques involving a solution of nanoparticles, which creates a very thin layer on the target substrate (...) and is used as a sacrificial layer during the nanopatterning process. (shrink)

Nanoparticles have been used in numerous fields, various branches of science and engineering. These were used as a modification and to enhance the activity such as dentistry and oral investigation. The current survey uncovers that graphene oxide has been used to set up a variety of functionalized nanoparticles and progressed nanocomposites carriers. Graphene oxide shows potential in a variety of research examinations, for instance, tooth bleaching, antimicrobial activity, tooth erosion, teeth implants, toothaches, drug delivery at a specific site. (...) All these usages of graphene oxide to biomedicine are excellent, and consoling Graphene oxide use in dental science has given amazing outcomes in antimicrobial activity, bone tissue building, regenerative dental, advancing dentistry biological materials, and in the treatment of oral cancer. The biocompatibilities of graphene oxide and its nanomaterial make them approaching units in bone regeneration, osseointegration, and cell multiplication. Furthermore, its antibiofilm and antiadhesion action encouraged researchers to formulate graphene oxide for biofilm. Nanostructures are utilized advancements or exploration of dentistry, and nanocomposite is employed for oral ailment preventive drugs, prostheses, and teeth implantation. Nanomaterials are further utilized as an oral liquid, mouth wash, or medication, forestalling and facilitating some oral malady and keep up oral wellbeing. (shrink)

This book defines 'nanowares' as the ideas and products arising out of nanotechnology. Koepsell argues that these rapidly developing new technologies demand a new approach to scientific discovery and innovation in our society. He takes established ideas from social philosophy and applies them to the nanoparticle world. In doing so he breaks down the subject into its elemental form and from there we are better able to understand how these elements fit into the construction of a more complex system of (...) products, rules and regulations about these products. (shrink)

Micro and nano-electromechanical systems ( MEMS / NEMS ) are devices in which the physical motion of a micro or nano-scale structure is controlled by an electronic circuit or vice versa. MEMS and NEMS can be used to build sensitive sensors and stable timing devices. Nano System is a function at the molecular scale. This includes both current work and more advanced concepts. In its core meaning, nanotechnology refers to the predicted ability to make items from the bottom up, using (...) techniques and tools that are produced to make complete, high-performance products. Nano System Introduced the idea of nano-scale "assembly" that could make its own copy. Other aspects of the desired complexity with atomic control in Nano Systems Nano Systems are very widespread and practical. Nanocomputers and nanoassemblers are also a subset of Nano Systems. Nanoparticles are the main components of all nanosystems. To produce nanoparticles with the help of nanotechnology, changes can be made in atoms by controlling the properties. When materials are studied at the nanoscale, the reactions and behavior of atoms are compared to those at the molecular level. (shrink)

Among the many potential benefits arising from the rapidly advancing field of nanomedicine is the possibility of a whole new range of nanovaccines in which novel delivery mechanisms utilizing nanoparticles could make obsolete the use of needles for administering any vaccine. However, as the massive resources of the worldwide pharmaceutical industry are deployed to develop nanovaccines, urgent questions arise as to which diseases should be targeted and which populations will benefit most. -/- This paper explores how such targeting of (...) nanovaccines might be decided in an ethically optimal way and considers some of the practical considerations and potential problems of implementing such a global nanovaccine policy. There seems little doubt that nanomedical research could develop vaccines against most major global infectious diseases. Throughout the history of medicine, however, it is well recognized that insufficient attention and resources have been given to public health and preventive medicine and the environmental causes of ill-health remain under-researched. We urge that national governments and regional authorities of wealthier countries incentivise their powerful pharmaceutical corporations to develop nanovaccines within a global and long term perspective and not just to focus on the diseases of the developed world. (shrink)

Nanotechnology, as with many technologies before it, places a strain on existing legislation and poses a challenge to all administrative agencies tasked with regulating technology-based products. It is easy to see how statutory schemes become outdated, as our ability to understand and affect the world progresses. In this article, we address the regulatory problems that nanotechnology posses for the Food and Drug Administration’s (FDA) classification structure for ‘‘drugs’’ and ‘‘devices.’’ The last major modification to these terms was in 1976, with (...) the enactment of the Medical Device Amendments. There are serious practical differences for a classification as a drug or device in terms of time to market and research. Drugs are classified, primarily, as acting by ‘‘chemical action.’’ We lay out some legal, philosophic, and scientific tools that serve to provide a useful, as well as legally and scientifically faithful, distinction between drugs and devices for the purpose of regulatory classification. These issues we raise are worth the consideration of anyone who is interested in the regulation of nano-products or other novel technologies. (shrink)