Momento (Apr 2018)
HOW CAN NANOPLAMONS BE USED IN DAYLY LIFE?
Abstract
Food, medicine or the care of the environment are basic elements of daily life on which our well-being depends. Nanotechnology contributes providing security and comfort. The development of biological sensors or biosensors is a tool that is offered to be used in areas as diverse as Biomedicine and clinical diagnosis, gardens, veterinary analysis, analysis and control of fermentation, analysis and production of beverages and food, virus analysis and bacteria, pharmaceutical analysis, industrial waste control, pollution control and monitoring, mining, toxic and industrial gases, and even military applications. Until a few years ago a biosensor was considered to be any analytical probe that introduced into a biological medium would give a quantifiable signal. Recently, nanotechnology has discovered surface plasmon resonance (SPR), a phenomenon that may be the basis of a very powerful biosensor that exhibits unparalleled advantages over other available methods. In this work we show the principles of the operation of a nanoplasmonic biosensor, its characteristics and its comparative superiority in terms of detection speed, high specificity, high sensitivity and possibility of real time analysis from detecting minimal changes in the refractive index of the detection surface and its immediate vicinity. Finally we will take care of an advance that promises even more advantages and is the nanoparticles used as biological sensors of clean, safe and accurate application thanks to the extremely high location of the immense electric fields nearby (LSPR).
