Biogenic means "originating from living organisms" or "produced by living organisms".

Here are some examples:

* Biogenic gas: Gas produced by living organisms, like methane from bacteria in swamps.

* Biogenic material: Material derived from living organisms, like wood or bone.

* Biogenic nanoparticles: Nanoparticles produced by living organisms, like those found in some bacteria.

Let me know if you need any other help!