摘要
In this work, we investigate the feasibility of detecting quantitatively DNA molecules utilizing the technology named after the immunomagnetic reduction (IMR) assay. Magnetic nanoparticles dispersed in a phosphate buffer saline solution were bio-functionalized with probing single-strand DNA. A superconducting quantum interference device (SQUID) ac magnetosusceptometer was employed to detect IMR signals related to the concentration of the target DNA. The results reveal that use of IMR assay had merits such as a high convenience level, e.g. wash-free processes and high sensitivity, down to pM, for DNA detection.
原文 | 英語 |
---|---|
頁(從 - 到) | 681-685 |
頁數 | 5 |
期刊 | Journal of Magnetism and Magnetic Materials |
卷 | 323 |
發行號 | 6 |
DOIs | |
出版狀態 | 已發佈 - 2011 3月 |
ASJC Scopus subject areas
- 電子、光磁材料
- 凝聚態物理學