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Titolo:
INVESTIGATION OF SURFACE CHANGES ON MICA INDUCED BY ATOMIC-FORCE MICROSCOPY IMAGING UNDER LIQUIDS
Autore:
RESCH R; FRIEDBACHER G; GRASSERBAUER M;
Indirizzi:
VIENNA TECH UNIV,INST ANALYT CHEM,GETREIDEMARKT 9-151 A-1060 VIENNA AUSTRIA VIENNA TECH UNIV,INST ANALYT CHEM A-1060 VIENNA AUSTRIA
Titolo Testata:
Fresenius' journal of analytical chemistry
fascicolo: 1-2, volume: 358, anno: 1997,
pagine: 352 - 355
SICI:
0937-0633(1997)358:1-2<352:IOSCOM>2.0.ZU;2-9
Fonte:
ISI
Lingua:
ENG
Soggetto:
ELECTROLYTE-SOLUTIONS; WATER; AIR; NM;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
15
Recensione:
Indirizzi per estratti:
Citazione:
R. Resch et al., "INVESTIGATION OF SURFACE CHANGES ON MICA INDUCED BY ATOMIC-FORCE MICROSCOPY IMAGING UNDER LIQUIDS", Fresenius' journal of analytical chemistry, 358(1-2), 1997, pp. 352-355

Abstract

Surface changes oil muscovite mica induced by tip-surface interactions in atomic Force microscopy (AFM) experiments under liquids are described. investigations have been performed with AFM operated both in contact mode (CM-AFM) and in tapping mode (TM-AFM). Additionally, force-distance measurements have been carried out. In contrast to CM-AFM pronounced surface changes can be observed in TM-AFM experiments. However. TM-AFM images of areas previously scanned in contact mode show that imaging contact made changes the surface, too. An evaluation of force-distance measurements reveals that these changes depend on the adhesiveinteraction between tip and sample, which in turn strongly depends onthe surrounding medium. The artefact can be avoided by changing the pH-value of the medium or by working with mixtures of ethanol and water. This greatly enhances the applicability of TM-AFM for in-situ investigation of surface processes on mice, which is a frequently used substrate for many technological and biological applications.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 29/09/20 alle ore 06:10:44