Modified transmission electron microscope grid and preparation method and application thereof

The invention belongs to the technical field of transmission electron microscopes, and particularly relates to a modified transmission electron microscope grid and a preparation method and application thereof. According to the method, the poly-L-lysine is firstly used for modifying the transmission electron microscope carrying net, then the weathered crust particle suspension is dropwise added to the modified transmission electron microscope carrying net, a transmission electron microscope sample is obtained and then tested and analyzed, and the defect that the weathered crust particles are difficult to adsorb by the electrically neutral carrying net is overcome. Meanwhile, the method is easy to operate, low in cost and suitable for large-scale production. 本发明属于透射电子显微镜技术领域，具体涉及一种改性透射电镜载网及其制备方法与应用。本发明先用多聚-L-赖氨酸对透射电镜的载网进行改性，再将风化壳微粒悬浮液滴加在改性透射电镜载网上，得到透射电镜样品后进行测试分析，克服了电中性载网难吸附风化壳微粒的缺点。同时，本发明的方法操作简单，成本低廉，适用于大规模生产。