On behalf of the organizing committee, I would like to invite you to participate in the 7 th International Conference on Nanoscience and Technology, China 2017 (ChinaNANO 2017) which will be held between August 29-31, 2017 in Beijing, China. This is the seventh conference following the successful ChinaNANO 2005, ChinaNANO 2007, ChinaNANO 2009, ChinaNANO 2011 and ChinaNANO 2013, ChinaNANO 2015 events held in Beijing. ChinaNANO 2017 is intended to stimulate discussions on the forefront of research in nanoscience and nanotechnology. The conference will focus on carbon nanomaterials, inorganic nanomaterials and MOFs, self-assembly and soft nanomaterials, nanocatalysis, nano-composites and applications, energy nanotechnology, environmental nanoscience and nanotechnology, nanophotonics and plasmonics, 2D materials beyond graphene and nanodevices, nanocharacterization, standards and metrology, modeling and simulation of nanostructures, nanobiotechnology and nanomedicine, nanotechnology for bioimaging and diagnostics, safety and health of nanomaterials，printing of nanomaterilas and applications as well as optoelectronic nanomaterials and devices. We sincerely hope that the scope of the conference will serve the interest of the scientific community, as well as the industry and the general public. I wish to extend a warm welcome to all participants and sponsors of the event.