“…However, many commercial applications (such as for drug delivery, bio-imaging, chemical sensing or inclusion in optoelectronic devices), requiring relatively large amounts of luminescent LMOGs, are currently limited by production costs, the need for high purities, and environmental and radiation stability issues. In addition, seemingly benign structural modifications to a functional luminescent LMOG, such as changing the position of the emitting functional group within a molecular frame or even changing the length of a non-luminescent part of an LMOG (e.g., the length of an alkyl chain), can drastically decrease (or increase) both the efficiency of emission and the ability of the LMOG to form a gel [ 106 , 107 , 108 ]. Additionally, there are few known examples of fluorescent or phosphorescent LMOGs which have been shown to be biocompatible.…”