Particular features of formarion of nanoscience and nanotechnology as a leading trend of the modern innovative development, as well as contradictions relating to the definition of nanotechnology, their practical applications, assessment of the possible benefits and risks, optimistic and pessimistic scenarios of the “nanofuture” are analysed in the article. Methodological backgrounds of nanoethics as an ethics of management of nanomaterials are investigated. The contradictions of justification of nanoethics are outlined. They are due to the fact that some of the ethical questions are principally new one, while other questions are the modifications of the previous questions, which can be considered within bioethics, engineering and professional ethics, etc.
