The Fifth International Conference on Quantum-, Nano- and Micro-technologies (ICQNM 2011) continues a series of events covering particularly promising theories and technologies. The conference covers fundamentals on designing, implementing, testing, validating and maintaining various kinds of materials, systems, techniques and mechanisms related to quantum-, nano- and micro-technologies. The main tracks are targeting Quantum technologies, Quantum security, Nano technologies, Micro technologies, Application nano/micro domains, Nano and micro materials and properties, Microfluidics and nanofluidics, Superconductivity, materials and applications, and Nano and bio robotics. All tracks are open to both research and industry contributions.  Details at http://www.iaria.org/conferences2011/ICQNM11.html | Nice/Saint Laurent du Var, French Riviera.