DNA nanogel encapsulated by a lipid vesicle
DNA has been used as a new generic material due to its selectivity and intrinsic biocompatibility, to construct a variety of nano-architectures such as cubic, tetrahedral, and even complicated origami. Recently, a 3-D hydrogel matrix of DNA has been manufactured at macroscopic scale for biomedical a...
| Main Authors: | , , , , |
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| Other Authors: | |
| Format: | Article |
| Language: | en_US |
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Institute of Electrical and Electronics Engineers (IEEE)
2013
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| Online Access: | http://hdl.handle.net/1721.1/79682 |
| _version_ | 1826202545842814976 |
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| author | Kim, A Ra Moon, James J. Irvine, Darrell J. Sunghwan Jung, Darrell J. Um, Soong Ho |
| author2 | Massachusetts Institute of Technology. Department of Materials Science and Engineering |
| author_facet | Massachusetts Institute of Technology. Department of Materials Science and Engineering Kim, A Ra Moon, James J. Irvine, Darrell J. Sunghwan Jung, Darrell J. Um, Soong Ho |
| author_sort | Kim, A Ra |
| collection | MIT |
| description | DNA has been used as a new generic material due to its selectivity and intrinsic biocompatibility, to construct a variety of nano-architectures such as cubic, tetrahedral, and even complicated origami. Recently, a 3-D hydrogel matrix of DNA has been manufactured at macroscopic scale for biomedical applications as an extra-cellular matrix and a cell-free protein amplification platform. To explore DNA hydrogel in a microscopic level, we report a novel method to produce DNA nanogel enclosed by a lipid vesicle. Nano-sized DNA hydrogels have been simply prepared by mixing precursors with DOPC lipid components under repeated sonications, following by nanometer filtering. After peeling off outer lipids using a lipid-chaotropic reagent (Triton X-100), we observe uniform nanogels entirely composed of DNA. With increasing the amount of DOPC lipids, the size of DNA nanogel has decreased. Our theoretical model based on equilibrium thermodynamics predicts such trend consistent with experiments. It indicates that DOPC lipid molecules energetically interfere with crosslink mechanisms among DNA units. DNA nanogel of well-controlled size may be incorporated with functional multi-modules and further applied to novel and advanced technological tools for in vivo diagnostics or therapeutics in preventive medicines. |
| first_indexed | 2024-09-23T12:09:12Z |
| format | Article |
| id | mit-1721.1/79682 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T12:09:12Z |
| publishDate | 2013 |
| publisher | Institute of Electrical and Electronics Engineers (IEEE) |
| record_format | dspace |
| spelling | mit-1721.1/796822022-09-28T00:31:35Z DNA nanogel encapsulated by a lipid vesicle Kim, A Ra Moon, James J. Irvine, Darrell J. Sunghwan Jung, Darrell J. Um, Soong Ho Massachusetts Institute of Technology. Department of Materials Science and Engineering Moon, James J. Irvine, Darrell J. Sunghwan Jung, Darrell J. DNA has been used as a new generic material due to its selectivity and intrinsic biocompatibility, to construct a variety of nano-architectures such as cubic, tetrahedral, and even complicated origami. Recently, a 3-D hydrogel matrix of DNA has been manufactured at macroscopic scale for biomedical applications as an extra-cellular matrix and a cell-free protein amplification platform. To explore DNA hydrogel in a microscopic level, we report a novel method to produce DNA nanogel enclosed by a lipid vesicle. Nano-sized DNA hydrogels have been simply prepared by mixing precursors with DOPC lipid components under repeated sonications, following by nanometer filtering. After peeling off outer lipids using a lipid-chaotropic reagent (Triton X-100), we observe uniform nanogels entirely composed of DNA. With increasing the amount of DOPC lipids, the size of DNA nanogel has decreased. Our theoretical model based on equilibrium thermodynamics predicts such trend consistent with experiments. It indicates that DOPC lipid molecules energetically interfere with crosslink mechanisms among DNA units. DNA nanogel of well-controlled size may be incorporated with functional multi-modules and further applied to novel and advanced technological tools for in vivo diagnostics or therapeutics in preventive medicines. National Science Foundation (U.S.). Materials Research Science and Engineering Centers (Program) ( Award DMR-02-13282) Bill & Melinda Gates Foundation 2013-07-23T17:37:39Z 2013-07-23T17:37:39Z 2010-08 Article http://purl.org/eprint/type/ConferencePaper 978-1-4244-7033-4 http://hdl.handle.net/1721.1/79682 Kim, A Ra, James J. Moon, Darrell J. Irvine, Sunghwan Jung, and Soong Ho Um. “DNA nanogel encapsulated by a lipid vesicle.” In 10th IEEE International Conference on Nanotechnology, 454-457. Institute of Electrical and Electronics Engineers, 2010. © Copyright 2010 IEEE en_US http://dx.doi.org/10.1109/NANO.2010.5697779 Proceedings of the 10th IEEE International Conference on Nanotechnology Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf Institute of Electrical and Electronics Engineers (IEEE) IEEE |
| spellingShingle | Kim, A Ra Moon, James J. Irvine, Darrell J. Sunghwan Jung, Darrell J. Um, Soong Ho DNA nanogel encapsulated by a lipid vesicle |
| title | DNA nanogel encapsulated by a lipid vesicle |
| title_full | DNA nanogel encapsulated by a lipid vesicle |
| title_fullStr | DNA nanogel encapsulated by a lipid vesicle |
| title_full_unstemmed | DNA nanogel encapsulated by a lipid vesicle |
| title_short | DNA nanogel encapsulated by a lipid vesicle |
| title_sort | dna nanogel encapsulated by a lipid vesicle |
| url | http://hdl.handle.net/1721.1/79682 |
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