Minister Wan Gang and Brazilian Minister Mercadante of Science and Technology signed The Memorandum of Understanding on Bilateral Cooperation in S&T in the Area of Bamboo Development and The Memorandum of Understanding for Establishing China-Brazil Nanotechnology Research and Innovation Center between MOST and its Brazilian counterpart in the Great Hall of the People on April 12, 2011. President Hu Jintao and President Rousseff witnessed the signing ceremony.