Twentyeight-SevenLogo Design Contest

Can yo make the 28 look more like a "protein" and the seven look more like RNA? if you google some images of proteins and RNA, you will see that they have very different "appearances" and any way to build that into the numbers. also, can you make the colors more distinct - perhaps 7 in orange and 28 in blue.

Interesting design - is there way to make the numbers more self-standing logo? more eye catching - addition of colors?