Molecular probe

A molecular probe is a group of atoms or molecules used in molecular biology or chemistry to study the properties of other molecules or structures. If some measurable property of the molecular probe used changes when it interacts with the analyte (such as a change in absorbance), the interactions between the probe and the analyte can be studied. This makes it possible to indirectly study the properties of compounds and structures which may be hard to study directly. The choice of molecular probe will depend on which compound or structure is being studied as well as on what property is of interest. Radioactive DNA or RNA sequences are used in molecular genetics to detect the presence of a complementary sequence by molecular hybridization.[1]

A compass of molecular probes

Common probes

gollark: Am I better at resisting peer pressure than other people: well, I'd *like* to think so, but so would probably everyone else ever.
gollark: Anyway, I have, I think, reasonably strong "no genocide" ethics. But I don't know if, in a situation where everyone seemed implicitly/explicitly okay with helping with genocides, and where I feared that I would be punished if I either didn't help in some way or didn't appear supportive of helping, I would actually stick to this, since I don't think I've ever been in an environment with those sorts of pressures.
gollark: Maybe I should try arbitrarily increasing the confusion via recursion.
gollark: If people are randomly assigned (after initial mental development and such) to an environment where they're much more likely to do bad things, and one where they aren't, then it seems unreasonable to call people who are otherwise the same worse from being in the likely-to-do-bad-things environment.I suppose you could argue that how "good" you are is more about the change in probability between environments/the probability of a given real world environment being one which causes you to do bad things. But we can't check those with current technology.
gollark: I think you can think about it from a "veil of ignorance" angle too.

References

  1. "Cancerweb Molecular Probe Definition".
  2. Sirbu, D.; Zeng, L.; Waddell, P. G.; Benniston, A. C. (2019-08-07). "An unprecedented oxidised julolidine-BODIPY conjugate and its application in real-time ratiometric fluorescence sensing of sulfite". Organic & Biomolecular Chemistry. 17 (31): 7360–7368. doi:10.1039/C9OB01316D. ISSN 1477-0539.


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