Title
Adsorption Of Antibody Protein Onto Plasma-Polymerized Film Characterized By Atomic Force Microscopy And Quartz Crystal Microbalance
Abstract
Adsorption of antibody protein (anti-human IgG) onto plasma-polymerized thin films (PPF) with nanoscale thickness was characterized by atomic force microscopy (AFM) and quartz crystal microbalance (QCM). The PPF surface is very flat (less than 1 nm roughness) and its properties (charge and wettability) can be easily changed while retaining the backbone structure. We focus on two types of surfaces: one is the pristine surface of hexamethyldisiloxane (HMDS) PPF (hydrophobic) and the other is an HMDS PPF surface with nitrogen-plasma treatment (hydrophilic and positive-charged surface). The AFM image showed that the antibody molecules were densely adsorbed onto both surfaces and individual antibody molecules could be observed. The QCM profiles show a corresponding tendency with the AFM images. These results indicate that the plasma polymerized film can be the suitable biointerface for the application of biosensor and bioassay.
Year
DOI
Venue
2007
10.1093/ietele/e90-c.3.649
IEICE TRANSACTIONS ON ELECTRONICS
Keywords
Field
DocType
antibody, plasma-polymerized film, adsorption
Nanotechnology,Hexamethyldisiloxane,Quartz crystal microbalance,Wetting,Optics,Biointerface,Chemical engineering,Surface finish,Biosensor,Adsorption,Engineering,Thin film
Journal
Volume
Issue
ISSN
E90C
3
0916-8524
Citations 
PageRank 
References 
0
0.34
0
Authors
3
Name
Order
Citations
PageRank
hitoshi114.01
Satoshi Miura201.01
Naoya Murata311.64