Cutting down the forest of peaks in acoustic dynamic atomic force microscopy in liquid

C. Carrasco, P. Ares, P. J. de Pablo, J. Gomez-Herrero

    Research output: Contribution to journalArticlepeer-review

    Abstract

    Acoustic dynamic force microscopy in liquids is a fundamental technique for the investigation of biological samples under physiological conditions. However, it shows an important drawback that consists of producing a myriad of resonance peaks, known as the forest of peaks, which hides the natural resonance frequency of the cantilever and prevents an optimum operation of the microscope. In this work, we propose a simple remedy for this problem, which consists on adding a small clay damper to the dither piezoelectric. The resulting frequency spectrum exhibits a single resonance peak that is comparable with the one obtained using magnetic excitation.
    Original languageEnglish
    Pages (from-to)1-2
    Number of pages2
    JournalReview of Scientific Instruments
    Volume79
    Issue number12
    DOIs
    Publication statusPublished - Dec 2008

    Keywords

    • acoustic measurement
    • acoustic resonance
    • atomic force microscopy
    • biological techniques
    • cantilevers
    • piezoelectric actuators

    Fingerprint

    Dive into the research topics of 'Cutting down the forest of peaks in acoustic dynamic atomic force microscopy in liquid'. Together they form a unique fingerprint.

    Cite this