It depends on the material of the gel and the structure that you want to observe. If the gel is uniform amorphous, even if you can prepare the specimen, you can observe no meaningful structure.

The organogel was made up of polyester which contains poly(βbernyl L-glutamate) on the side chains. Similar structure could form nanofiber in literature. And even if it is diluted to 0.5% w/v, it still forms gel. 

I see. I will try the way you told me. Thank you, sir.

Utramicrotome cutting would be good, but you would have to use cryo configuration. I'm afraid that rapid freezing should be also necessary.