5579 Journal of Applied Sciences Research, 8(12): 5579-5582, 2012 ISSN 1819-544X This is a refereed journal and all articles are professionally screened and reviewed ORIGINAL ARTICLES Corresponding Author: M. Wesam Al-Mufti, Nano structure lab on chip research group Institute Nano Electronic Engineering, Universiti Malaysia Perlis. (UniMAP), 01000 Kangar, Perlis Malaysia E-mail: mohamenw@gmail.com Current trend in simulation: Review Nanostructures using Comsol Multiphysics M. Wesam Al-Mufti, U. Hashim and Tijjani Adam Nano structure lab on chip research group Institute Nano Electronic Engineering, Universiti Malaysia Perlis. (UniMAP), 01000 Kangar, Perlis Malaysia ABSTRACT Nanotechnology is one of important studies in scientific research which can categories in Nanostructure and nanomarterials. Computer simulation has become an essential one of part of nanotechnology and engineering and science. The Digital analysis of components, in particular, is important when developing new products or optimizing designs. Recently is a broad spectrum of options for simulation is available; researchers use everything from basic programming languages to various high-level packages implementing advanced methods. Though each of these techniques has its own unique attributes, they all share a common concern. Hence, in this paper present a COMSOL simulation on nano structures, the past and recent development nanostructures design and simulation for carbon Nanotube, nanogap, nonporous, and nanowires. Key words: Nanostructures. COMSOL Multiphysics, Nanoporous, carbon nanotube, Nanowire, Nanogap, Nanotechnology. Introduction Currently, Computer simulation has become an essential part of nanotechnology and engineering and science. Recently, one important of nanotechnology and engineering and science are simulation of Computer. Digital analysis of components, in particular, is important when developing new products or optimizing designs when apply new method in Digital analysis of components it is very significant when new yields or optimizing designs. Today a broad spectrum of options for simulation is available; researchers use everything from basic programming languages to various high-level packages implementing advanced methods. ((Nowadays, there are wide range options for simulation is available: scientific researchers use everything from essential programming languages to several high-level packages applying advanced methods.)). Though each of these techniques has its own unique attributes, they all share a common concern. For each techniques has its own inimitable characteristics, they all share a common concern.)) In this software significant things is using of nanosturcture flexible platform that allows all model parameters that are relevant physical aspects of their designs. Advanced users can go deeper and use their knowledge to develop customized solutions, applicable to their unique circumstances. Professional users use their knowledge to progress customized solutions, appropriate to their unique situations. With this kind of all-inclusive modelling environment. In comosl have good noticeable trait of the COMSOL platform is adaptability Also has several problem-solving benefits. When starting a new project, using COMSOL helps you understand your problem. many problem can be solve by using COMSOL in any beginning new project You are able to test out various geometrical and physical characteristics of your model, Researchers able to check out several geometrical and physical characteristics of your model so you can really hone in on the important design challenges. So you can really improve in on the vital design challenges.)The flexible nature of the COMSOL environment facilitates further analysis by making “what-if” cases easy to set up and run. With use of COMSOL there are many assists further analysis by making “what-if” cases easy to set up and run. You can take your simulation to the production level by optimizing any aspect of your model. Ability to apply simulation to the production level by optimizing any aspect for the model)) Parameter sweeps and target functions can be executed right in the user interface. Two Parameter sweeps and target functions can be implemented right in the user interface.)) From start to finish, COMSOL is a complete problem-solving from beginning to end; COMSOL is a complete problem-solving tool A. Nano textured surfaces have one dimension on the nanoscale, i.e., only the thickness of the surface of an object is between 0.1 and 100 nm. Spherical nanoparticles have three dimensions on the nanoscale, i.e., the particle is between 0.1 and 100 nm in each spatial dimension. The terms nanoparticles and ultrafine particles (UFP) often are used synonymously although UFP can reach into the micrometre range. The term 'nanostructure'