I don't have specific papers but a lot of research into the origins of life on this planet go into that kind of thing! I know there have been interesting findings into using clay imprints for self replication, for instance
Science
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Got one! XNA. Here's an article example (boo behind a paywall).
It's available for free on a popular "scientific research paper file sharing site"[^1] if you search for its title.
[^1]: The founder of which just won an EFF Award a couple days ago!
Got it ;) But I hadn't heard about the award! can you share some link about that? Cheers!
Edit: found it! Well done EFF! (I'm a proud member.)
Cool! Let's see what kind of material people bring out :)
I remember I did a search 5 or more years ago, and it was actually tricky because I only got something after searching for very specific terms, which in turn I had gotten from other searches. I'm trying to remember what they were...