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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Tanaami, Takeo Hosokawa, Masahito Wake, Hitoshi Shibata, Keiyu Matsunaga, Tadashi Gomyo, Hideyuki Taguchi, Tomoyuki Tanaka, Tsuyoshi Arakaki, Atsushi Mogi, Takeyuki Hatakeyama, Keiichi |
| Description | Country affiliation: Japan Author Affiliation: Tanaka T ( Division of Biotechnology and Life Science, Institute of Engineering, Tokyo University of Agriculture and Technology, 2-24-16, Koganei, Tokyo 184-8588, Japan. tsuyo@cc.tuat.ac.jp) |
| Abstract | Magnetic nanoparticles (MNPs) modified with the thiol functionalized polyamidoamine (PAMAM) dendron were synthesized to estimate their DNA recovery capabilities. Aminosilane-modified MNPs and MNPs surrounded by a phospholipid (distearoylphosphatidylethanolamine (DSPE)) bilayer were used as core particles. Cystamine-core PAMAM dendrimers were reduced by dithiothreitol to dendron thiols and chemically conjugated to the core particles. Characterization of the synthesis revealed an increase of the surface amine charge from generation 1 (G1) to G6, starting with an aminosilane initiator. Particle size distribution analysis indicated that G6 PAMAM-modified MNPs exhibited monodispersity in an aqueous solution. G6 PAMAM-MNPs and G6 PAMAM-PE-MNPs synthesized by the proposed method have equivalent DNA recovery abilities to PAMAM-MNPs prepared by the conventional divergent synthesis method. In optimized conditions, 96% of λDNA was recovered using G6 PAMAM-PE-MNPs. Therefore, the method for preparing PAMAM-MNPs and PAMAM-PE-MNPs proposed in this study will be a novel approach for producing DNA carriers for efficient DNA purification by magnetic separation. |
| ISSN | 00219797 |
| Issue Number | 1 |
| Journal | Journal of Colloid and Interface Science |
| Volume Number | 377 |
| e-ISSN | 10957103 |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2012-07-01 |
| Publisher Place | United States |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Dna, Viral Chemistry Dendrimers Magnetics Nanoparticles Sulfhydryl Compounds Chemical Synthesis Journal Article Discipline Colloid & Interface Science |
| Content Type | Text |
| Resource Type | Article |
| Subject | Surfaces, Coatings and Films Colloid and Surface Chemistry Biomaterials Electronic, Optical and Magnetic Materials |
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