Molecule coating in DPN

The coating of MHA molecules on silicon nitride tips has been inspected through SEM. Five chips was inpected initiallly before dipping. Three out of the five were found to have some stuff on hte tip, so they were put in ethanol for ~30 minutes. SEM inspections followed. The other two chips were dipped into 1 mM MHA solution in ethanol for ~30 seconds and subsequently imaged. After that, the two were rinsed with ethanol to remove extra molecules, then imaged again.