Determination of the mass of polymer films using an AFM cantilever

Autor:	Alexander Erofeev, I. V. Yaminskii
Rok vydání:	2011
Předmět:	chemistry.chemical_classification Materials science Cantilever Atomic force microscopy General Physics and Astronomy Nanotechnology Polymer Chloride Adsorption chemistry Microscopy Calibration medicine Composite material medicine.drug Added mass
Zdroj:	Moscow University Physics Bulletin. 66:278-281
ISSN:	1934-8460 0027-1349
Popis:	There are no established methods that have a sensitivity during the determination of an adsorbed polymer film mass that is not worse than 1 ng that do not require additional calibration and the usage of reference measures. A highly sensitive method for measuring an adsorbed polymer is proposed in this work. The added mass was determined by the change of the resonance frequency of a cantilever used in atomic-force microscopy (AFM) as a probe. A modification of the cantilever surface is proposed that allows one to avoid the affect of the adsorbed polymer on the cantilever force constant. The mass of poly(diallyldimethylammonium) (PDDA) chloride adsorbed on the cantilever surface was obtained with a sensitivity of 0/01 ng using an AFM cantilever.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::acc1f3607fba49bdb5a0c5bed00e414b https://doi.org/10.3103/s0027134911030064 Zobrazit plný text záznamu Full text from SpringerLink