The Islamic Development Bank (IDB) is in discussions with Chinese officials to study the use of Islamic financing in the planned Asian Infrastructure Investment Bank (AIIB). The move could spur the use of sukuk (Islamic bonds), which have gained prominence as funding tools for a range of countries in recent years, and among multilateral lenders to help fund some of Asia's mounting infrastructure needs. A potential link-up between IDB and AIIB, which have 20 member countries in common, would also open a growing pool of capital in the hands of private-sector Islamic investors across the Middle East and Southeast Asia.