Analysis of amplitude modulation atomic force microscopy in aqueous salt solutions

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dc.citation.epage141en_US
dc.citation.spage137en_US
dc.citation.volumeNumber318en_US
dc.contributor.authorKarayaylali, P.en_US
dc.contributor.authorBaykara, M. Z.en_US
dc.date.accessioned2015-07-28T12:05:24Z
dc.date.available2015-07-28T12:05:24Z
dc.date.issued2014-11-01en_US
dc.departmentDepartment of Mechanical Engineeringen_US
dc.departmentInstitute of Materials Science and Nanotechnology (UNAM)en_US
dc.description.abstractWe present a numerical analysis of amplitude modulation atomic force microscopy in aqueous salt solutions, by considering the interaction of the microscope tip with a model sample surface consisting of a hard substrate and soft biological material through Hertz and electrostatic double layer forces. Despite the significant improvements reported in the literature concerning contact-mode atomic force microscopy measurements of biological material due to electrostatic interactions in aqueous solutions, our results reveal that only modest gains of similar to 15% in imaging contrast at high amplitude setpoints are expected under typical experimental conditions for amplitude modulation atomic force microscopy, together with relatively unaffected sample indentation and maximum tip-sample interaction values.en_US
dc.description.abstractWe present a numerical analysis of amplitude modulation atomic force microscopy in aqueous salt solutions, by considering the interaction of the microscope tip with a model sample surface consisting of a hard substrate and soft biological materialthrough Hertz and electrostatic double layer forces. Despite the significant improvements reported in the literature concerning contact-mode atomic force microscopy measurements of biological material due to electrostatic interactions in aqueous solutions, our results reveal that only modest gains of ∼15% in imaging contrast at high amplitude setpoints are expected under typical experimental conditions for amplitude modulation atomic force microscopy, together with relatively unaffected sample indentation and maximum tip–sample interaction valuesen_US
dc.identifier.doi10.1016/j.apsusc.2014.02.016en_US
dc.identifier.issn0169-4332
dc.identifier.urihttp://hdl.handle.net/11693/13259
dc.language.isoEnglishen_US
dc.publisherElsevieren_US
dc.relation.isversionofhttp://dx.doi.org/10.1016/j.apsusc.2014.02.016en_US
dc.source.titleApplied surface scienceen_US
dc.subjectAtomic force microscopyen_US
dc.subjectImaging of biomaterialsen_US
dc.subjectElectrostatic double layer forcesen_US
dc.titleAnalysis of amplitude modulation atomic force microscopy in aqueous salt solutionsen_US
dc.typeArticleen_US

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