Efficiency of genomic DNA extraction dependent on the size of magnetic nanoclusters

Hyun Ah Cho, Ji Hyun Min, Jun Hua Wu, Jin Woo Jang, Chae Seung Lim, Young Keun Kim

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


We report the efficiency of genomic DNA extraction as a function of particle size and quantity. For DNA extraction, we synthesized magnetic nanoclusters of various sizes and coated the surface of these magnetic nanoclusters with meso-2,3-dimercaptosuccinic acid. We showed that the nanoclusters had a tight particle size distribution and high crystallinity. Furthermore, we observed that the three types of magnetic nanoclusters studied exhibited ferrimagnetic behavior and that larger nanoclusters showed larger saturation magnetization values. The resultant efficiency of DNA extraction is inversely proportional to particle size in the range of nanoclusters tested, due to the fact that the surface-to-volume ratio decreases as particle size increases.

Original languageEnglish
Article number17B512
JournalJournal of Applied Physics
Issue number17
Publication statusPublished - 2014 May 7

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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