Edward M. Lerner (born 1949) is an American author of science fiction, techno-thrillers, and popular science. (wikipedia)
The medical nanobots in my novel 'Small Miracles' tap the energy sources that the patient's own body provides. That is, they can metabolize glycerol and glucose, just as the cells in our bodies do.
Readers and viewers will differ about what's totally standalone, what's totally serially dependent, and what's merely enriched by reading/viewing in a particular order.
Many a fine SF story uses science or technology merely as backdrop. Many a fine SF story presumes a technological breakthrough and explores its implications without attempting to predict how the thing might actual work.
I have to believe SF writers will continue to inspire the public to have faith in - to demand! - a future that is at least as big and bold as the past.
History buffs expect historical background in historical fiction. Mystery readers expect forensics and police procedure in crime fiction. Westerns - gasp - describe the West. Techno-thriller readers expect to learn something about technology from their fiction.
What kind of hard SF do I write? Everything from near-future, Earth-centric techno-thrillers to far-future, far-flung interstellar epics.
The distinguishing characteristic of the techno-thriller is technical detail.
I want to believe humanity has not forgotten how to explore.
Happily, researchphilia is not the problem it once was. The Internet makes just-in-time research very practical.
Authors like reading. Go figure. So it's not surprising that we sometimes bog down in the research stage of new writing projects.