Two different states conversion mechanism of the imprinting sites
| Autor: | Tao Yang, Yueming Ren, Haoran Song, Pingxin Liu, Zhongxiang Zhang, Lisha Luo, Jun Ma, Xiaowen Wang |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Scatchard plot
Bisphenol A Chemistry Binding process 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Positive correlation 01 natural sciences Dosage effect 0104 chemical sciences Surfaces Coatings and Films Electronic Optical and Magnetic Materials Biomaterials chemistry.chemical_compound Colloid and Surface Chemistry Adsorption Biophysics Imprinting (psychology) Binding site 0210 nano-technology |
| Zdroj: | Journal of Colloid and Interface Science. 539:235-244 |
| ISSN: | 0021-9797 |
| DOI: | 10.1016/j.jcis.2018.12.060 |
| Popis: | Bisphenol A molecular imprinted adsorbent (BMIA) was successfully synthesized by a sol-gel process and showed a good specific binding performance in the water. The further studies showed that the mass transfer process was controlled by in-diffusion, and the synthesis conditions would effect on the amount of imprinting sites. Scatchard model analysis evidenced that the high binding affinity sites and the low binding affinity sites were both on BMIA, and the high binding affinity sites played a key role in the specific binding process. Scatchard model analysis of temperature effect experiments and dosage effect experiments proved that the specific binding sites with high binding affinity and the unexpressed specific binding sites with low binding affinity were the two different states of the imprinting binding sites. The conversion between the two different states depended on the reaction driving force, and the increasing reaction driving force would increase the number of specific binding sites. Especially, the temperature showed a linear positive correlation with the amount of specific binding sites. Finally, a possible model was put forward to explain the two different states conversion mechanism of the imprinting sites. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect