Theory of Single-Impact Atomic Force Spectroscopy in liquids with material contrast
Abstract Scanning probe microscopy has enabled nanoscale mapping of mechanical properties in important technological materials, such as tissues, biomaterials, polymers, nanointerfaces of composite materials, to name only a few. To improve and widen the measurement of nanoscale mechanical properties,...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2018-05-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-018-25828-4 |
| _version_ | 1828977449492283392 |
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| author | Enrique A. López-Guerra Francesco Banfi Santiago D. Solares Gabriele Ferrini |
| author_facet | Enrique A. López-Guerra Francesco Banfi Santiago D. Solares Gabriele Ferrini |
| author_sort | Enrique A. López-Guerra |
| collection | DOAJ |
| description | Abstract Scanning probe microscopy has enabled nanoscale mapping of mechanical properties in important technological materials, such as tissues, biomaterials, polymers, nanointerfaces of composite materials, to name only a few. To improve and widen the measurement of nanoscale mechanical properties, a number of methods have been proposed to overcome the widely used force-displacement mode, that is inherently slow and limited to a quasi-static regime, mainly using multiple sinusoidal excitations of the sample base or of the cantilever. Here, a different approach is put forward. It exploits the unique capabilities of the wavelet transform analysis to harness the information encoded in a short duration spectroscopy experiment. It is based on an impulsive excitation of the cantilever and a single impact of the tip with the sample. It performs well in highly damped environments, which are often seen as problematic in other standard dynamic methods. Our results are very promising in terms of viscoelastic property discrimination. Their potential is oriented (but not limited) to samples that demand imaging in liquid native environments and also to highly vulnerable samples whose compositional mapping cannot be obtained through standard tapping imaging techniques. |
| first_indexed | 2024-12-14T14:58:08Z |
| format | Article |
| id | doaj.art-dc55e19766744da0a8c3be14b65718e1 |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-12-14T14:58:08Z |
| publishDate | 2018-05-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-dc55e19766744da0a8c3be14b65718e12022-12-21T22:56:56ZengNature PortfolioScientific Reports2045-23222018-05-018111610.1038/s41598-018-25828-4Theory of Single-Impact Atomic Force Spectroscopy in liquids with material contrastEnrique A. López-Guerra0Francesco Banfi1Santiago D. Solares2Gabriele Ferrini3Department of Mechanical and Aerospace Engineering, The George Washington UniversityInterdisciplinary Laboratories for Advanced Materials Physics, Università Cattolica del Sacro CuoreDepartment of Mechanical and Aerospace Engineering, The George Washington UniversityInterdisciplinary Laboratories for Advanced Materials Physics, Università Cattolica del Sacro CuoreAbstract Scanning probe microscopy has enabled nanoscale mapping of mechanical properties in important technological materials, such as tissues, biomaterials, polymers, nanointerfaces of composite materials, to name only a few. To improve and widen the measurement of nanoscale mechanical properties, a number of methods have been proposed to overcome the widely used force-displacement mode, that is inherently slow and limited to a quasi-static regime, mainly using multiple sinusoidal excitations of the sample base or of the cantilever. Here, a different approach is put forward. It exploits the unique capabilities of the wavelet transform analysis to harness the information encoded in a short duration spectroscopy experiment. It is based on an impulsive excitation of the cantilever and a single impact of the tip with the sample. It performs well in highly damped environments, which are often seen as problematic in other standard dynamic methods. Our results are very promising in terms of viscoelastic property discrimination. Their potential is oriented (but not limited) to samples that demand imaging in liquid native environments and also to highly vulnerable samples whose compositional mapping cannot be obtained through standard tapping imaging techniques.https://doi.org/10.1038/s41598-018-25828-4 |
| spellingShingle | Enrique A. López-Guerra Francesco Banfi Santiago D. Solares Gabriele Ferrini Theory of Single-Impact Atomic Force Spectroscopy in liquids with material contrast Scientific Reports |
| title | Theory of Single-Impact Atomic Force Spectroscopy in liquids with material contrast |
| title_full | Theory of Single-Impact Atomic Force Spectroscopy in liquids with material contrast |
| title_fullStr | Theory of Single-Impact Atomic Force Spectroscopy in liquids with material contrast |
| title_full_unstemmed | Theory of Single-Impact Atomic Force Spectroscopy in liquids with material contrast |
| title_short | Theory of Single-Impact Atomic Force Spectroscopy in liquids with material contrast |
| title_sort | theory of single impact atomic force spectroscopy in liquids with material contrast |
| url | https://doi.org/10.1038/s41598-018-25828-4 |
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