I will be sending liposome samples for TEM analysis. However, they are not able to do negative staining for me. Is it still possible for me to obtain desirable images?
In general, cryo-EM is better for such objects. Drying artifacts make negative staining almost useless for such "soft" structures. Dry samples without staining? No way. I'd recommend to look for a cryo-EM facility around.
I agree with Denis. The size and shape of liposomes can be characterized by cryo-EM as it can directly visualize individual particles including their inner architecture.