[please advise]

Hi there

I am looking for some advice please or a point in the right direction; here is what i need, a formula that can do the following-

1: Stable holder of DNA
2: Hard wearing but can be removed if required without causing damage to item.
3: Invisible to the naked eye
4: Liquid enough to be loaded in a pen but not to dry out until its been applied to the item to be marked
5: Dry quickly by air once item is marked and not to be by a chemically forced drying (if it can be helped)
6: Consist of all natural ingredients therefore not needing any specialised handling or labels.

If anyone is interested please get in touch.

Thanks very much.

Regards

Adam

[glycogrl07]

not a clue, but i think you may want to read the forum rules... subject of post should relate to the question... please help,etc. is not articulate and you may want to post in branch of chem. This sounds like a biochem question, but you also need some more specifics.  Are you trying some sort of reaction, why load into a pen and why are you concerned with labeling?  You should look at your situation from several perspectives, if you created this question, you know the answer.  It will come to you.

[agrobert]

more like trying to get help with an idea/invention without providing any information
good luck