Surface Modification Using Spiropyran-Derivative and Its Analysis of Surface Potential Induced by UV

Journal of the Korean Chemical Society

Dong Keun Han¹  Tae Il Son¹  Bong Soo Lee¹  Young Hwan Jung¹ 

关键词: Ç¥¸é ÀüÀ§;    spiropyran;    photochromism;    merocyanine;    kelvin prove force microscopy (KFM);    surface potential;   

DOI  :  

学科分类：化学（综合）

来源: Korean Chemical Society

【 摘 要 】

Merocyanine derivatives transformed from spiropyran-containing compounds by irradiating the light of ultraviolet (UV) include zwitterion of phenolate anion and amine cation. Complexation of this phenolate anion on merocyaninemodified surface and Ni ion among metal ions led to a change of surface charge and it was measured with kelvin prove force microscopy (KFM). We found that the resultant surface potential decreased linearly as UV-exposed time increased, and finally were saturated. Also it was analyzed through XPS the immobilized amount of Ni ions was increased according to increase of UV-exposed time. It is considered that these properties could be applied for detection and a quantitative control of different metal ions. Further research is to aim construct specific scaffold/matrix which enable high selective, high sensitive and, especially, a quantitative immobilization of metal ions-binding biomaterials such as proteins and cells.

【 授权许可】

Unknown