I have been interested in these matters but due to my lack of time, I haven't been able to dedicate myself to this investigation.

dedicate 是动词，意思是"奉献、致力于"，常与介词to搭配使用。 myself 是反身代词，指代主语"I"，表示动作的承受者也是主语自己。 to 是介词，在这里表示动作的方向或对象。 dedicate oneself to 是一个固定搭配，意思是"全身心投入于..."或"致力于..."。