The phrase "although not demonstrated" is correct and usable in written English.
It can be used to introduce a contrast or exception regarding something that has not been proven or shown.
Example: "The theory is widely accepted, although not demonstrated through empirical evidence."
Alternatives: "even if not proven" or "despite lacking evidence".
Hence, the possible formation of TiAg and Ti2Ag intermetallics or even a Ag/TiAg/Ti2Ag phase mixture, although not demonstrated, should not be disregarded.
Additionally, although not demonstrated in our current image sets, there do exist conditions where image fusion itself has been inherently shown to provide impact to the viewer.
Although not demonstrated herein, the provision for high-pressure operation is made so that the effect of a dissolving gas on the viscosity of the pitch materials can be evaluated.
Although not demonstrated in detail in this work, if the tertiary structure of the missing sequence is either known or can be predicted from other sources, multiple spheres (e.g., a string of beads) can be used to better represent the absent structural elements.
Although not demonstrated here, the chemical component of the GF-PSI mixed synapse is likely cholinergic.
Although not demonstrated, authors have addressed the option for an in situ measurement of epoxy-carotenoids [ 175].
Bovine N. caninum infection, although not demonstrating any acute-phase symptoms, may result in chronic phase consequences, as indicated by reduced gain of body weight in seropositive versus seronegative calves [ 18].
Bode reviewed a number of studies comparing insulin pump with MDI, which are summarized in Table 1 and certainly show feasibility of this approach, although not demonstrating superiority to MDI.
BBF of our present case seemed to be not exactly healed only by continuous percutaneous drainage because bilioptysis was often seen, although bronchus was not demonstrated by fistulography.
They concluded that although they had not demonstrated spatial quantization, they had provided "evidence that the silver atom possesses a magnetic moment".
As mentioned above, the concept of interactive trouble (Ludwig and Herschell, 1996) resonated with the PSTs, who tended to find it everywhere in their transcripts, although this is not demonstrated in the examples of quality work shown above.
