AIM: To prepare the chitosan-pmEpo nanoparticles and to study their ability for transcellular and paracellular transport......

在适宜条件下，稀土对林木许多生理功能都有积极作用。稀土在促进林木生长发育，增强营养水平，提高抗性等方面效果显著。稀土可能主要通......