However the material has proved difficult to synthesize.
It has been difficult to synthesize imaging agents that bind only to cancer cells.
However, it remains difficult to synthesize general textures over arbitrary manifold surfaces.
However, it is difficult to synthesize appropriate photosensitive materials, which greatly limits their development.
It was difficult to synthesize CNT fibers from these precursors using the direct spinning method.
In theory, it is not technically difficult to synthesize novichok compounds, although some are harder to make than others.
The miscibility of acrylonitrile (AN) with water has made it difficult to synthesize PAN-based polyHIPEs.
As these molecules are difficult to synthesize chemically, exploitation of their properties has been modest.
Polyolefins having low polydispersity and containing terminal functional groups are difficult to synthesize, due to limitations in catalysis technology.
Since these were difficult to synthesize, the team turned to amine-based molecules that were similar in many ways, but easier to make.
These valuable natural products are often difficult to synthesize chemically and are commonly isolated through inefficient extractions from natural biological sources.
