Science is an art of living being and engineering are sub-branches of science.By the use of scientific knowledge at the nano-scale phenomenon and by the application of engineering at the nano-scale we are able to design nano-devices, nano-machines etc. In earlier days biology was applicable only in medicine field. Today there is a need to start the program from biological and engineering students to take active part in nano-science. By the application of nano-science we can save human life. From few years there is an great achievement in the living and educational standard in society by the implications of Nano-science and Nano-Technology. Nano-science is in great demand due to an interdisciplinary area, inter and intra engineering, physics , medicine and basic sciences. Is it really a connection between nano-science engineering and human being.Applications of nano-science and nanotechnology are in every area of daily life.