A scanning probe and quartz crystal microbalance study of the impact of C₆₀on friction at solid-liquid interfaces

Abstract

We have investigated the changes in interfacial friction of toluene on mica and Ag(111) both in the presence and in the absence of interfacial C 60 layers employing atomic force microscope (AFM) and quartz crystal microbalance (QCM) techniques. The lateral force measurements fail to detect C 60 at the toluene/mica interface, presumably because the C 60 is dislodged by the slowmoving probe tip. In contrast, QCM measurements of interfacial friction and slippage for toluene/Ag(111) are sensitive to the presence of interfacial C 60. We see the friction double when C 60 is present. The results are discussed in the light of the full-slip boundary condition which had been previously reported for surface forces apparatus (SFA) measurements on toluene/mica in the presence and absence of interfacial C 60 .

Concanavalin A–Polysaccharides binding affinity analysis using a quartz crystal microbalance

“…This makes QCM an easy to set and robust technique for bioaffinity analysis. Data obtained from QCMs are shown to be in accordance with other well-established techniques such as Surface Plasmon Resonance (SPR) (Cho et al, 2004; Laricchia-Robbio and Revoltella, 2004), fluorescence spectroscopy (Ha et al, 2004; Hisao, 2000), Atomic force Microscopy (Caruso et al, 1997; T. Coffey, 2001) and photoelectron microscopy (Kristensen et al, 2003).…”

Lectin–carbohydrate affinity measured using a quartz crystal microbalance

“…Therefore, QCM is one of the techniques used to study the kinetics of intermolecular interactions. The reliability of QCM results has been verified by different supplementary methods such as impedance [18], electrochemical analysis [13,19], fluorescence spectroscopy [15,20], surface plasmon resonance [14,15,21], atomic force microscopy [15][16][17], and photoelectron spectroscopy [22].…”

“…The characterization of quartz resonator behavior under simultaneous mass and liquid loading has been reported in many publications [5][6][7], though a theory of the QCM operating in the liquid phase is still incompletely developed. Despite that, there is an increasing number of papers concerning QCM measurements in liquid, especially those relevant to biological applications such as immunoassays [8][9][10], biosensor techniques [11,12], monitoring the kinetics of the adsorption-desorption processes [13], monitoring DNA hybridization [14,15], and studying the problems of molecular immobilization [15][16][17].…”

Compósito De Borracha Natural Reforçado Com Bagaço Da Canade-Açúcar: Efeitos Mecânicos Do Tratamento Alcalino

“…A QCM permite a estimativa da constante de taxa de dissociação, bem como as constantes de taxa de equilíbrio e de associação das interações moleculares (MAO et al, 2002;HU et al, 2003). A confiabilidade dos resultados da QCM foi verificada por diferentes métodos complementares como impedância (BUTTRY; WAROL, 1992), análise eletroquímica (MAO et al, 2002;RAND;LETCHER, 2003), espectroscopia de fluorescência (CHO et al, 2004;HA et al, 2004), ressonância plasmônica de superfície (OKAHATA et al, 2000;CHO et al, 2004;LARICCHIA-ROBBIO;REVOLTELLA, 2004), microscopia de força atômica (COFFEY;ABDELMAKSOUD;KRIM, 20001;CHO et al, 2004) e espectroscopia de fotoelétrons (KRISTENSEN et al, 2003).…”