The phrase "absence of bacteria" is correct and usable in written English.
It can be used in scientific or medical contexts to describe a situation where bacteria are not present.
Example: "The laboratory results confirmed the absence of bacteria in the water sample, indicating it is safe for consumption."
Alternatives: "lack of bacteria" or "no bacteria present".
Thus, in the absence of bacteria the contractions seem to occur in a more irregular pattern.
It has become increasingly apparent that the absence of bacteria in the intestines is unhealthy.
Control experiments consisted of mixing LMBV with the biofilm substratum in the absence of bacteria.
As the absence of bacteria does not impair the contractile ability itself, a microbial effect on the pacemakers seems plausible.
In the absence of bacteria the clay mineral incorporates Na+ from the medium.
Addition of cysteine stimulates bacterial activity and acts as a sulfide dissolving agent even in the absence of bacteria.
In an unusual Lotus japonicus mutant, nodulation occurs spontaneously in the absence of bacteria, due to the activity of a modified signalling pathway kinase.
The presence of MNV also suppressed an expansion of group 2 innate lymphoid cells observed in the absence of bacteria, and induced transcriptional changes in the intestine associated with immune development and type I interferon (IFN) signalling.
On 3, 7, and 14 days, and 3 months post-surgery four rats per time period and material were killed, and calvariae were examined to quantify new bone formation and the presence or absence of bacteria.
As compared to two-layered Cu2O films that grow on the specimen surfaces in the absence of bacteria, Cu2S films were essentially less susceptible for the attack by Cl−.
The percentage incorporation of water-derived oxygen into sulfate during the oxidation experiments by O2 varied with longer incubation and lower pH, but not due to the presence or absence of bacteria.
