Kinetic investigation of protein adsorption into polyelectrolyte brushes by quartz crystal microbalance with dissipation: the implication of the chromatographic mechanism

2021 ◽  
pp. 462460
Author(s):  
Fenfen You ◽  
Qing-Hong Shi
2010 ◽  
Vol 5 (4) ◽  
pp. 159-167 ◽  
Author(s):  
Eva Bittrich ◽  
Keith Brian Rodenhausen ◽  
Klaus-Jochen Eichhorn ◽  
Tino Hofmann ◽  
Mathias Schubert ◽  
...  

2017 ◽  
Vol 2017 ◽  
pp. 1-8 ◽  
Author(s):  
You Kusakawa ◽  
Eiji Yoshida ◽  
Tohru Hayakawa

Protein adsorption onto titanium (Ti) or zirconia (ZrO2) was evaluated using a 27 MHz quartz crystal microbalance (QCM). As proteins, fibronectin (Fn), a cell adhesive protein, and albumin (Alb), a cell adhesion-inhibiting protein, were evaluated. The Ti and ZrO2 sensors for QCM were characterized by atomic force microscopy and electron probe microanalysis observation, measurement of contact angle against water, and surface roughness. The amounts of Fn and Alb adsorbed onto the Ti and ZrO2 sensors and apparent reaction rate were obtained using QCM measurements. Ti sensor showed greater adsorption of Fn and Alb than the ZrO2 sensor. In addition, amount of Fn adsorbed onto the Ti or ZrO2 sensors was higher than that of Alb. The surface roughness and hydrophilicity of Ti or ZrO2 may influence the adsorption of Fn or Alb. With regard to the adsorption rate, Alb adsorbed more rapidly than Fn onto Ti. Comparing Ti and ZrO2, Alb adsorption rate to Ti was faster than that to ZrO2. Fn adsorption will be effective for cell activities, but Alb adsorption will not. QCM method could simulate in vivo Fn and Alb adsorption to Ti or ZrO2.


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