生物膜是由多种脂质、蛋白质、碳水化合物和离子组成的超分子体系,它是生命活动的重要结构基础。膜脂是构成生物膜的基本骨架,主要起结构作用,并可通过其流动性和极性作用调节蛋白质功能。膜脂主要由磷脂、糖脂和类固醇组成,而磷脂在生物膜,尤其是在动物膜体系中的含量较高。膜 Biofilm is a supramolecular system composed of a variety of lipids, proteins, carbohydrates and ions, which is an important structural basis of life activity. Membrane lipids constitute the basic skeleton of the biofilm, which serves primarily as a structural element and regulates the function of the protein through its fluidity and polarity. Membrane lipids are mainly composed of phospholipids, glycolipids and steroids, while phospholipids are higher in biofilms, especially in animal membrane systems. membrane