ssDNA Aptamer-Based Column for Simultaneous Removal of Nanogram Per Liter Level of Illicit and Analgesic Pharmaceuticals in Drinking Water
文献类型：期刊论文
| 作者 | Hu, Xiangang4; Mu, Li3; Zhou, Qixing2,4; Wen, Jianping3; Pawliszyn, Janusz1 |
| 刊名 | ENVIRONMENTAL SCIENCE & TECHNOLOGY
 |
| 出版日期 | 2011-06-01 |
| 卷号 | 45期号:11页码:4890-4895 |
| ISSN号 | 0013-936X |
| DOI | 10.1021/es104241z |
| 英文摘要 | Aptamers are a new class of single-stranded DNA/RNA molecules selected from synthetic nucleic acid libraries for molecular recognition. Our group reports a novel aptamer column for the removal of trace (ng/L) pharmaceuticals in drinking water. In this study, cocaine and diclofenac were chosen as model molecules to test the aptamer column which presented high removal capacity, selectivity, and stability. The removal of pharmaceuticals was as high as 88-95%. The data of adsorption were fitted with Langmuir isotherm and a pseudo-second-order kinetic model. A thermodynamic experiment proved the adsorption processes were exothermic in spontaneity. The kinetics of aptamer was composed of three stein: activation, binding, and hybridization. The first step was the rate-controlling step. The adsorption system was divided into three parts: kinetic, mixed, and thermodynamic zones from 0% to 100% binding fraction of aptamer. Furthermore, the aptamer column was reusable and achieved strong removal efficiency from 4 to 30 C at normal cation ion concentration (5-100 mg/L) for multipollutants Without cross effects and secondary pollution. This work indicates that aptamer, as a new sorbent, can be used in the removal of persistent organic pollutants, biological toxins, and pathogenic bacteria from surface, drinking, and ground water. |
| WOS研究方向 | Engineering ; Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000291128700034 |
| 出版者 | AMER CHEMICAL SOC |
| 源URL | [http://210.72.129.5/handle/321005/121875]  |
| 专题 | 中国科学院沈阳应用生态研究所 |
| 通讯作者 | Zhou, Qixing |
| 作者单位 | 1.Univ Waterloo, Dept Chem, Waterloo, ON N2L 3G1, Canada 2.Chinese Acad Sci, Inst Appl Ecol, Key Lab Terr Ecol Proc, Shenyang 110016, Peoples R China 3.Tianjin Univ, Dept Biochem Engn, Sch Chem Engn & Technol, Tianjin 300072, Peoples R China 4.Nankai Univ, Coll Environm Sci & Engn, Minist Educ, Key Lab Pollut Proc & Environm Criteria, Tianjin 300071, Peoples R China |
| 推荐引用方式 GB/T 7714 | Hu, Xiangang,Mu, Li,Zhou, Qixing,et al. ssDNA Aptamer-Based Column for Simultaneous Removal of Nanogram Per Liter Level of Illicit and Analgesic Pharmaceuticals in Drinking Water[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2011,45(11):4890-4895. |
| APA | Hu, Xiangang,Mu, Li,Zhou, Qixing,Wen, Jianping,&Pawliszyn, Janusz.(2011).ssDNA Aptamer-Based Column for Simultaneous Removal of Nanogram Per Liter Level of Illicit and Analgesic Pharmaceuticals in Drinking Water.ENVIRONMENTAL SCIENCE & TECHNOLOGY,45(11),4890-4895. |
| MLA | Hu, Xiangang,et al."ssDNA Aptamer-Based Column for Simultaneous Removal of Nanogram Per Liter Level of Illicit and Analgesic Pharmaceuticals in Drinking Water".ENVIRONMENTAL SCIENCE & TECHNOLOGY 45.11(2011):4890-4895. |
入库方式： OAI收割
来源：沈阳应用生态研究所
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