Held under the patronage of the Custodian of the Two Holy Mosques King Abdullah bin Abdulaziz Al Saud, the International Conference for Nano Technology Industries and the exhibition organized on its fringes by King Abdullah Institute for Nano Technology, an affiliate of King Saud University, wrapped up here this evening. Scientists, academicians and researchers in the field of nano technology took part in the three-day event. The conference, the first of its kind in the world, issued a number of recommendations.