Diffusion happens naturally and so does not require energy. Substances like oxygen, carbon dioxide and glucose move in and out of cells by diffusion. If I spray a little perfume over here, ...

Muscle oxygen-binding proteins circumvent anatomical limits to enhance oxygen diffusion in multicellular organisms ...

Researchers in China have developed a new type of perovskite solar cells that offer higher efficiency. Developed by scientists from Huaqiao University, these perovskite solar cells offer 26.39% ...