| Title |
Site-specific positioning of dendritic alkyl chains on DNA cages enables their geometry-dependent self-assembly
|
|---|---|
| Published in |
Nature Chemistry, September 2013
|
| DOI | 10.1038/nchem.1745 |
| Pubmed ID | |
| Authors | |
| Abstract |
Nature uses a combination of non-covalent interactions to create a hierarchy of complex systems from simple building blocks. One example is the selective association of the hydrophobic side chains that are a strong determinant of protein organization. Here, we report a parallel mode of assembly in DNA nanotechnology. Dendritic alkyl-DNA conjugates are hybridized to the edges of a DNA cube. When four amphiphiles are on one face, the hydrophobic residues of two neighbouring cubes engage in an intermolecular 'handshake', resulting in a dimer. When there are eight amphiphiles (four on the top and bottom cube faces, respectively), they engage in an intramolecular 'handshake' inside the cube. This forms the first example of a monodisperse micelle within a DNA nanostructure that encapsulates small molecules and releases them by DNA recognition. Creating a three-dimensional pattern of hydrophobic patches, like side chains in proteins, can result in specific, directed association of hydrophobic domains with orthogonal interactions to DNA base-pairing. |
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X Demographics
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| United States | 2 | 20% |
| United Kingdom | 2 | 20% |
| Syrian Arab Republic | 1 | 10% |
| South Africa | 1 | 10% |
| Unknown | 4 | 40% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Scientists | 4 | 40% |
| Members of the public | 4 | 40% |
| Practitioners (doctors, other healthcare professionals) | 1 | 10% |
| Science communicators (journalists, bloggers, editors) | 1 | 10% |
Mendeley demographics
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| United Kingdom | 4 | 2% |
| United States | 1 | <1% |
| Netherlands | 1 | <1% |
| Mexico | 1 | <1% |
| Korea, Republic of | 1 | <1% |
| India | 1 | <1% |
| France | 1 | <1% |
| Canada | 1 | <1% |
| Belgium | 1 | <1% |
| Other | 0 | 0% |
| Unknown | 184 | 94% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Ph. D. Student | 50 | 26% |
| Researcher | 36 | 18% |
| Student > Master | 24 | 12% |
| Student > Bachelor | 17 | 9% |
| Student > Doctoral Student | 13 | 7% |
| Other | 28 | 14% |
| Unknown | 28 | 14% |
| Readers by discipline | Count | As % |
|---|---|---|
| Chemistry | 79 | 40% |
| Biochemistry, Genetics and Molecular Biology | 28 | 14% |
| Agricultural and Biological Sciences | 22 | 11% |
| Materials Science | 10 | 5% |
| Engineering | 8 | 4% |
| Other | 17 | 9% |
| Unknown | 32 | 16% |