Scanning Probe Microscopy(SPM)is a powerful tool for detecting surface properties of nanomaterials.Preparing sample is the key process for SPM imaging.Detecting nanoparticles with SPM often faces the problem that the nanoparticles are usually repolymerized by the molecular force and form nanoparticle-reunions in the process of preparing SPM specimens.To conquer this difficulty

we propose a new method for preparing SPM nanoparticle specimens by soft microprinting combined with enhanced diffusing

in which proper nanoparticle dispersal system can be formed on the substrate surface separated in the liquor nano-film after soft-lithographed.Experiments vali-dated that it is an available artifice for preparing nanoparticle sample in SPM detecting.