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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Ding, Meijuan Ma, Jing Zhou, Xuemin Yuan, Lihua Wang, Shu Li, Fei Ren, Feng Zhang, Jun Du, Shuhu |
| Description | Country affiliation: China Author Affiliation: Ma J ( School of Pharmacy, Nanjing Medical University, Hanzhong Road, Nanjing 210029, China.) |
| Abstract | In this paper, highly selective core-shell molecularly imprinted polymers of 17ß-estradiol on the surface of silica nanoparticles (SiO(2)@E2-MIPs) were prepared. The SiO(2)@E2-MIPs were characterized by Fourier transform infrared spectrometer (FT-IR), transmission electron microscope (TEM), dynamic adsorption and static adsorption tests. The sorption capacity of the SiO(2)@E2-MIPs were nearly 5 times that of the non-imprinted polymers (NIPs), and it only took 25 min to achieve the sorption equilibrium. It indicated that the SiO(2)@E2-MIPs exhibited a high selectivity, large adsorption capacity and fast kinetics. When the SiO(2)@E2-MIPs were used as dispersive solid-phase extraction (dSPE) absorbents to selectively enrich and determine estrogens in duck feed, the average recoveries of E2 and estriol (E3) were higher than 96.74% and 72.07%, respectively, and the relative standard deviations (RSD) of E2 and E3 were less than 1.61% and 3.28%, respectively. The study provides an effective method for the separation and enrichment of estrogens in the complex matrix samples by the SiO(2)@E2-MIPs. |
| ISSN | 09565663 |
| Issue Number | 5 |
| Volume Number | 26 |
| e-ISSN | 18734235 |
| Journal | Biosensors and Bioelectronics |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2011-01-15 |
| Publisher Place | Great Britain (UK) |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Estradiol Analysis Chemistry Molecular Probe Techniques Instrumentation Molecular Probes Nanoparticles Silicon Dioxide Surface Properties Journal Article Research Support, Non-u.s. Gov't Discipline Biotechnology |
| Content Type | Text |
| Resource Type | Article |
| Subject | Nanoscience and Nanotechnology Medicine Biophysics Biomedical Engineering Biotechnology Electrochemistry |
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