Iranian and Lebanese academicians and scientists voiced their enthusiasm for expanding mutual cooperation in nano-science fields. Five university lecturers and researchers from Tehran, Sharif and Shahid Beheshti universities and center for technological cooperation and renovation at the presidential office and professors and researchers from top universities of Lebanon took part in the two-day seminar in Beirut to exchange their experiences in Nano-Science sector and talk about ways of consolidating cooperation. The participants offered their articles and delivered speeches for audience during the seminar. Iran and Lebanon enjoy cordial relations and have further expanded these ties in recent years. The two sides have exchanged several delegations of high-ranking officials in the last three years.