Title of article
Properties of TiO2–polyacrylic acid dispersions with potential for molecular recognition
Author/Authors
Kanehira، نويسنده , , Koki and Banzai، نويسنده , , Toshiaki and Ogino، نويسنده , , Chiaki and Shimizu، نويسنده , , Nobuaki and Kubota، نويسنده , , Yoshinobu and Sonezaki، نويسنده , , Shuji، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2008
Pages
6
From page
10
To page
15
Abstract
Titanium dioxide (TiO2)/polyacrylic acid (PAA) (TiO2/PAA) particles were formed by mixing PAA and an acidic solution of TiO2 nanoparticles in dimethylformamide (DMF) followed by heat treatment. TEM and particle analysis showed that the resulting particles had a narrow size distribution. The colloid was very stable and aggregation was not observed over a wide pH range (3–9) or at high salt concentration. The residual carboxylic acid of PAA could be modified via EDC/NHS activation to form an amide bond with a protein. An antibody was attached to the hybrid nanoparticle and specific binding to antigen was monitored by surface plasmon resonance. The results suggest that TiO2/PAA nanoparticles are candidates as the base component of a photocatalytic system with potential for substrate selectivity.
Keywords
Titanium dioxide , Polyacrylic acid , dispersion , Colloid stability , surface plasmon resonance
Journal title
Colloids and Surfaces B Biointerfaces
Serial Year
2008
Journal title
Colloids and Surfaces B Biointerfaces
Record number
1969058
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