DEPENDENCE OF A GAS-PHASE DNA GLOBULE SIZE ON CHAIN LENGTH
Modern trends in using DNA in nano- and biotechnologies generated the need for new methods of analyzing DNA molecules with up-to-date equipment. We developed a method of mild nondestructive ablation with terahertz radiation for bringing DNA molecules to aerosol. DNA nanoparticles were measured in th...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Siberian Branch of the Russian Academy of Sciences, Federal Research Center Institute of Cytology and Genetics, The Vavilov Society of Geneticists and Breeders
2015-01-01
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| Series: | Вавиловский журнал генетики и селекции |
| Subjects: | |
| Online Access: | https://vavilov.elpub.ru/jour/article/view/332 |
| _version_ | 1797214187059937280 |
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| author | T. N. Goryachkovskaya A. S. Kozlov V. M. Popik N. A. Kolchanov S. E. Peltek |
| author_facet | T. N. Goryachkovskaya A. S. Kozlov V. M. Popik N. A. Kolchanov S. E. Peltek |
| author_sort | T. N. Goryachkovskaya |
| collection | DOAJ |
| description | Modern trends in using DNA in nano- and biotechnologies generated the need for new methods of analyzing DNA molecules with up-to-date equipment. We developed a method of mild nondestructive ablation with terahertz radiation for bringing DNA molecules to aerosol. DNA nanoparticles were measured in the gas phase with a diffusion aerosol spectrometer. Changes that happen to DNA in the gas phase were visualized by atomic force microscopy (AFM). Comparison of diffusion sizes of plasmid pUC18 aerosol particles with those obtained by AFM indicated that DNA molecules experienced condensation in the gas phase. We constructed a model on the base of modern concepts of DNA condensation and globule formation. The predictions matched well the experimental data. The persistence DNA length estimated in the gas phase was about 0.5 nm. This fact points to the absence of distributed charge on the DNA surface in the gas phase and the nonionizing habit of terahertz radiation. Study of DNA conformations in the gas phase will add to the understanding to DNA compactness under natural and artificial conditions. |
| first_indexed | 2024-03-07T16:07:40Z |
| format | Article |
| id | doaj.art-f651833b27d14e859a4083b29cf9446c |
| institution | Directory Open Access Journal |
| issn | 2500-3259 |
| language | English |
| last_indexed | 2024-04-24T11:10:11Z |
| publishDate | 2015-01-01 |
| publisher | Siberian Branch of the Russian Academy of Sciences, Federal Research Center Institute of Cytology and Genetics, The Vavilov Society of Geneticists and Breeders |
| record_format | Article |
| series | Вавиловский журнал генетики и селекции |
| spelling | doaj.art-f651833b27d14e859a4083b29cf9446c2024-04-11T15:30:55ZengSiberian Branch of the Russian Academy of Sciences, Federal Research Center Institute of Cytology and Genetics, The Vavilov Society of Geneticists and BreedersВавиловский журнал генетики и селекции2500-32592015-01-01184/210131021315DEPENDENCE OF A GAS-PHASE DNA GLOBULE SIZE ON CHAIN LENGTHT. N. Goryachkovskaya0A. S. Kozlov1V. M. Popik2N. A. Kolchanov3S. E. Peltek4Institute of Cytology and Genetics SB RAS, Novosibirsk, RussiaInstitute of Chemical Kinetics and Combustion SB RAS, Novosibirsk, RussiaBudker Institute of Nuclear Physics SB RAS, Novosibirsk, RussiaInstitute of Cytology and Genetics SB RAS, Novosibirsk, Russia Novosibirsk National Research State University, Novosibirsk, RussiaInstitute of Cytology and Genetics SB RAS, Novosibirsk, RussiaModern trends in using DNA in nano- and biotechnologies generated the need for new methods of analyzing DNA molecules with up-to-date equipment. We developed a method of mild nondestructive ablation with terahertz radiation for bringing DNA molecules to aerosol. DNA nanoparticles were measured in the gas phase with a diffusion aerosol spectrometer. Changes that happen to DNA in the gas phase were visualized by atomic force microscopy (AFM). Comparison of diffusion sizes of plasmid pUC18 aerosol particles with those obtained by AFM indicated that DNA molecules experienced condensation in the gas phase. We constructed a model on the base of modern concepts of DNA condensation and globule formation. The predictions matched well the experimental data. The persistence DNA length estimated in the gas phase was about 0.5 nm. This fact points to the absence of distributed charge on the DNA surface in the gas phase and the nonionizing habit of terahertz radiation. Study of DNA conformations in the gas phase will add to the understanding to DNA compactness under natural and artificial conditions.https://vavilov.elpub.ru/jour/article/view/332dna condensationpersistence lengthdna packagedna desorptionatomic force microscopyaerosol particle size measurement |
| spellingShingle | T. N. Goryachkovskaya A. S. Kozlov V. M. Popik N. A. Kolchanov S. E. Peltek DEPENDENCE OF A GAS-PHASE DNA GLOBULE SIZE ON CHAIN LENGTH Вавиловский журнал генетики и селекции dna condensation persistence length dna package dna desorption atomic force microscopy aerosol particle size measurement |
| title | DEPENDENCE OF A GAS-PHASE DNA GLOBULE SIZE ON CHAIN LENGTH |
| title_full | DEPENDENCE OF A GAS-PHASE DNA GLOBULE SIZE ON CHAIN LENGTH |
| title_fullStr | DEPENDENCE OF A GAS-PHASE DNA GLOBULE SIZE ON CHAIN LENGTH |
| title_full_unstemmed | DEPENDENCE OF A GAS-PHASE DNA GLOBULE SIZE ON CHAIN LENGTH |
| title_short | DEPENDENCE OF A GAS-PHASE DNA GLOBULE SIZE ON CHAIN LENGTH |
| title_sort | dependence of a gas phase dna globule size on chain length |
| topic | dna condensation persistence length dna package dna desorption atomic force microscopy aerosol particle size measurement |
| url | https://vavilov.elpub.ru/jour/article/view/332 |
| work_keys_str_mv | AT tngoryachkovskaya dependenceofagasphasednaglobulesizeonchainlength AT askozlov dependenceofagasphasednaglobulesizeonchainlength AT vmpopik dependenceofagasphasednaglobulesizeonchainlength AT nakolchanov dependenceofagasphasednaglobulesizeonchainlength AT sepeltek dependenceofagasphasednaglobulesizeonchainlength |