the two important phenomena that govern nano properties. Nanoscience and technology is the interdisciplinary area covering its applications in various fields. Nano scale structures existed in nature long before scientists began studying them in laboratories. There are two ways of preparing the nanomaterials, top down and bottom up approaches.
Nanotechnology applications cover various fields. The major concern with nano application is that the nanoparticles have the dimensions same as that of the biological molecules such as proteins. Nano particles can easily get absorbed onto the surface of living organisms and they might enter the tissues and fluids of the body. The adsorbing nature depends on the surface of the nanoparticle.
It is possible to deliver a drug directly to a specific cell in the body by designing the surface of a nanoparticle. Nanoparticles of a few nanometers size may reach well inside biomolecules, which is not possible for larger nanoparticles. Nanoparticles can also cross cell membranes. The inhaled nanoparticles reach the blood and that may also reach other sites such as the liver, heart or blood cells.
Robotics is an integrated study of mechanical engineering, electronic engineering, computer engineering, and science. Robot is a mechanical device designed with electronic circuitry and programmed to perform a specific task. The robotic system mainly consists of sensors, power supplies, control systems, manipulators and necessary software. SUM MA R Y - - - - Unit Recent developments in physics The key components of a robot are Power conversion unit, Actuators, Electric motors, Pneumatic Air Muscles, Muscle wires, Piezo Motors and Ultrasonic Motors, Sensors, and Robot locomotion.
Six main types of industrial robots are Cartesian, SCARA, Cylindrical, Delta, Polar and Vertically articulated robot. Six-axis robots are ideal for Arc Welding, Spot Welding, Material Handling, Machine Tending. Five major fields of robotics: Human-robot interface, Mobility, Manipulation, Programming and Sensors. The aim of artificial intelligence is to bring in human like behavior in robots.
Artificial intelligence works on face recognition, providing response to players’ actions in computer games, taking decisions based on previous actions, regulating the traffic by analyzing the density