Composition with double functions of flocculating and destroying chlorella envelope and application thereof

The invention discloses a composition with double functions of flocculating and destroying chlorella envelope and application of the composition, and belongs to the field of bioengineering and energy. The composition is composed of an amphiphilic aggregation-induced emission II-type photosensitizer and a cationic surface active agent in any proportion. Chlorella is flocculated and settled by the TPyEt/CTAB aggregate through electrostatic interaction to realize collection of algae, and the TPyEt/CTAB aggregate generates active oxygen to destroy algae cells by external illumination, so that subsequent lipid extraction is facilitated. According to the method provided by the invention, not only is the flocculation efficiency of chlorella improved, but also the extraction efficiency of lipid is improved. 本发明公开了一种具有絮凝和破坏小球藻被膜双功能的组合物及其应用，属于生物工程与能源领域；该组合物由两亲性聚集诱导发光Ⅱ型光敏剂和阳离子表面活性剂以任意比例组成。TPyEt/CTAB聚集体通过静电作用使小球藻絮凝沉降实现藻类的收集，外加光照使TPyEt/CTAB聚集体产生活性氧破坏藻细胞，方便后续脂质提取。通过本发明提供的方法，既提高了小球藻的絮凝效率，又增加了脂质的提取效率。