Prof. Donglin Jiang is a full professor at the National University of Singapore and is recognized as a pioneer in the field of 2D polymers and covalent organic frameworks (COFs). With a background in chemistry and studies on dendrimers for ten years. the beauty of dendrimers inspired him to consider the possibility of constructing other types of polymers with well-defined shapes and s... https://www.fitnessgravesyardes.shop/product-category/heart-rate-ring/