When a Nano-Probe Engineer Meet a New Type of AFM-a Novel Analysis Technology for Surface Property

摘要

The new type of atomic force microscopy is becoming more prevalent. The powerful functions make it easier to study physical properties of surfaces. Some information such as elastic modulus, deformation, and adhesion can be obtained at the same time without compromising highest resolution. In this study, mechanic property measurement of soft matter is conducive to biomaterials development. By modifying AFM tips with functional groups, the recognition of specific surface properties is achieved, that is molecular recognition force microscopy. Our laboratory had developed several functional tips which can distinguish hydrophilic or hydrophobic surfaces, antifouling efficacy and so on. In this study we provide a method for determining the antifouling ability of a material surface, which is based on AFM with pollutant-coated AFM probes. We also improve the anti-stick property of AFM probe and extend probe's life time, which solves the stickiness problems when scanning polymer samples. We expect this technology can significantly shorten the time of developing new materials for the manufacture and speed the implementation of the novel technology in industry.