Preparation of Surface Molecularly Imprinted Poly(dopamine) Film for 4-Hydroxybenzoic Acid (4-BA) Recognition by One-Step Method

Abstract

In this paper, we present a one-step aqueous self-polymerization strategy to prepare surface molecularly imprinted poly(dopamine) (PDA) film. The method is simple and convenient compared with the “template-guided” surface molecularly imprinted synthesis method and the layer-by-layer self-assembly and the surface-grafted molecularly imprinted synthesis methods. The molecularly imprinted PDA films could selectively bind the template molecules (4-Hydroxybenzoic acid as a model), and bisphenol A (BPA) imprinted PDA films were also investigated. Meanwhile, the 2-dimension imprinted film material was used very conveniently.

Keywords:

• Film
• Molecular imprinting
• One-step self-polymerization
• Poly(dopamine)

Acknowledgments

This work was financially sponsored by the National Natural Science Foundation of China (No. 50673064), State Education Ministry of China (Doctoral Program for High Education, No. JS20061116506327).